Keypad prepayment energy meter and Vending System …docshare01.docshare.tips/files/26110/261103526.pdf · keypad Prepayment Energy Meter and Vending System Solution Shenzhen Inhemeter

Shenzhen Inhemeter Co., Ltd.

www.inhemeter.com

Keypad Prepayment Energy Meter

and Vending System Solution

Special Declaration

Copyright ©Inhemeter.All right reserved.

Sustainable product improvement is a policy in Shenzhen Inhemeter Co.,Ltd. Therefore, the

company reserves rights to change product operational details and specification. Contents of

this manual may be changed without notice. No part of the manual will be reproduced or

spread in any form or by any means for any purpose by any person or any other company

without permission in writing from Shenzhen Inhemeter Co., Ltd.

Trademark declaration

and other INHEMETER logos are trademarks of INHEMETER.

Other trademarks or registration trademarks mentioned in this document are possessed by

their respective owners.

VN:EKE201012-1

Index

Chapter1 Keypad Prepayment Meter ................................................................. 1

1.1 Executive Summary 1

1.2 What Is Keypad Prepayment Energy Meter 2

1.3 Applicable Standards on Keypad Prepayment Meters 3

1.4 STS Certifications Obtained by Inhemeter 5

1.5 Terminology 7

1.6 Technical Features 8

1.7 Categories of Inhe Keypad Prepayment Meter 10

1.8 Security Mechanism of Keypad Prepayment Meter 12

1.9 Basic Function of Products 14

Chapter2 Single Phase Keypad Prepayment Energy Meter ........................... 16

2.1 Introduction 16

2.2 Technical Specification 16

2.3 Meter Shape Diagram 19

2.4 Meter Installation Diagram 20

2.5 Terminals 21

2.6 Wiring Diagram 21

2.7 Meter Active Metering Accuracy 21

2.8 Basic Characteristics 23

2.9 Measurement Function 24

2.10 Special Functions 26

2.11 LCD Display 31

2.12 Operation Detail 34

2.13 Communication Port 38

2.14 Safety Regulation 40

2.15 Installation 40

Chapter3 Three Phase Keypad Prepayment Energy Meter ............................ 43

3.1 Technical Specification 43

3.2 Meter Shape Diagram 45



3.5 Wiring Diagram 46

Chapter4 Split Keypad Prepayment Energy Meter ......................................... 47

4.1 Introduction 47

4.2 Customer Interface Unit (CIU) 48

4.3 CIU Technical Parameters 48

4.4 Measurement and Control Unit (MCU) 49

4.5 MCU Technical Parameters 49

4.6 Single Phase Split Keypad Prepayment Meter 50

4.7 Three Phase Split Keypad Prepayment Meter 51

4.8 Three Phase Split Type Measurement Box 51

Chapter5 DIN Rail Mounting Split Keypad Prepayment Energy Meter .......... 52

5.1 Introduction 52

5.2 Three Methods for Communication With MCU 53

5.3 Three Communication Modes With MCU 53

5.4 MCU Shape Drawing 55

5.5 MCU Installation Diagram 55

5.6 DIN Rail Mounting Diagram 56

5.7 MCU Terminals 57

5.8 MCU Typical Wiring Diagram 58

5.9 Characteristics 59

5.10 Single phase 2-wire/3-wire split type keypad prepayment energy meter

complying to ANSI 60

5.11 Single Phase ESKOM Keypad Prepayment Energy Meter 60

Chapter6 SMARTVend Anywhere (System) .................................................... 64

6.1 Introduction 64

6.2 SMARTvend Characteristic 64

6.3 SMARTvend Structure 64

6.4 SMARTvend Compatibility and Scalability 65

6.5 Diversified Power Vending Module 66

6.6 SMARTvend Functions 67

6.7 Consist of System 67

6.8 Consist of ISVA 68

6.9 Servers Applicable 68

6.10 System Characteristic 69

Chapter7 AMR/AMM of INHEMETER................................................................ 70

Chapter8 Available Types of Keypad Prepayment Energy Meter .................. 72

8.1 Prepayment Energy Meters of Inhemeter 72

8.2 Order List of Single-phase Keypad Meter 74

8.3 Order List of Single-phase Split Type Keypad Meter 74

8.4 Order List of DIN rail-mounting Single-phase Split Keypad Meter 75

8.5 Order List of Single-phase ESKOM Keypad Meter 75

8.6 Order List of Three-phase Keypad Meter 76

8.7 Order List of Three-phase Split Keypad Meter 76

8.8 Order List of Related Software and Accessories 77

� Contact with us 1

keypad Prepayment Energy Meter and Vending System Solution

Shenzhen Inhemeter Co.,Ltd. | Executive Summary 1

Chapter1 Keypad Prepayment Meter

1.1 Executive Summary

With tightened supply of power and resources, energy saving and emission deduction have

become a common trend globally. To follow this global trend, electricity management authority

intends to use and implement prepayment metering system to achieve objectives of energy

saving, meter reading work load reduction and electricity fees collection improvement.

Prepayment metering system consists of Prepayment Electricity Vending Management

System and Prepayment meters.

Prepayment meter is such type of meter with which electricity consumer need to pay in

advance for electricity they consume.

Electricity Consumers can charge the electricity they purchased into meter through some

intermediary, meter will identify and process the data and supply Electricity to consumer

accordingly. When the credit in meter is nearly used up, meter will provide warning to

consumer to remind consumer for charging. when the credit in meter is completely used up,

meter will cut off power supply to realize “prepayment” (pay in advance, consume later) type

of electricity management.

Application of prepayment meter can successfully solve practical problems which Electricity

Management Authority are facing (such as problematic manual meter reading and hardship in

Electricity Fee collection).

Prepayment meter products developed and manufactured by Shenzhen Inhemeter Co., Ltd.

are of following two types：

IC Card Prepayment meter Keypad Prepayment Meter

Keypad Prepayment Energy Meter and Vending System Solution

2 Shenzhen Inhemeter Co.,Ltd. | What Is Keypad Prepayment Energy Meter

1.2 What Is Keypad Prepayment Energy Meter

Key-pad Prepayment Energy Meter is a prepayment meter which is using virtual intermediary,

i.e. token, as data exchange media.

Token means a code consists of 20 digits of numbers, such as 2837 5872 3731 6854 3423.

Based on amount paid by the consumer, a unique token will be generated by Vending

Management system. Consumer need to input this token into meter through keypad on meter

to complete credit transfer process. (meter will decode the token within meter as per

communication protocol)

keypad prepayment meter and vending system solution

Shenzhen Inhemeter Co.,Ltd. | Applicable Standards on Keypad Prepayment Meters 3

1.3 Applicable Standards on Keypad Prepayment Meters

IEC62055 is the only international standards available for prepayment metering system. The

standard is prepared by Standard Transfer Specification Association (established in 1997) of

South Africa. In 2005, as a result of STSA recommendation, Standard Transfer Specification is

recognized as a international standard, i.e. IEC62055.

IEC62055 series of standards covers payment collection management system, CIS customer

information system, vending management system, data transfer carrier, data exchange

standard, prepayment meter, interface standard and other related contents and all these

established a complete system frame work for Prepayment metering system.

IEC62055consists of:

EC62055－21 standardization structure

IEC62055－31 Prepayment meters for Active Energy (Class 1 and 2)

IEC62055－41 STS standard data transferring protocol－Application layer data transferring

protocol

IEC62055－51 STS standard data transferring protocol－Physical layer data exchange

carrier（numeric and magnetic card carrier）

EC62055－52 STS standard data transferring protocol－Physical layer data exchange

carrier（communication virtual carrier）

As all Keypad Prepayment meter follows same standard and are certified for their compatibility


4 Shenzhen Inhemeter Co.,Ltd. | Applicable Standards on Keypad Prepayment Meters

with STS standard (they also use standardized security module encryption algorithm) ,

therefore all prepayment meters manufactured by different meter manufacturers are

compatible with each other’s vending systems so long as the vending systems are also STS

certified.

As the only open prepayment metering system standard in the world, STS (Standard Transfer

Standard) has been widely accepted and adopted as prepayment metering system standard in

more than 70 countries. The arrangement of authorized access of STS technology (by STSA)

also assures safety and security of their application by Electricity Utilities.

As only prepayment meter products which obtain STS certification can ensure its compatibility

with other meter manufacturers’ STS certified prepayment metering system, Keypad

prepayment meter products of Shenzhen Inhemeter Co., Ltd. are also STS certified and the

manufacturer’s code is “37”.

Inhe meter’s Keypad prepayment metering products also comply with following standards:

� IEC 62052-11 2003 General requirement for Electricity measurement equipment（AC）

test and test conditions, part 11, measuring equipment

� IEC 62053-21 2003 Special requirement on Electricity measurement equipment（AC）,

part 21, special requirement on static active electricity meters (class 1 and 2)

� SANS 1524-1 2005 National Standard of South Africa for prepayment meters（SABS

certification）

� ESKOM SCSSCAAA9 Prepayment meter technical requirement of ESKOM, South

Africa

� ESKOM TRMSCAAP2 Prepayment meter technical requirement of ESKOM, South Africa

� BS 5685 British Standard type of wire Connection

� DIN 43857 Deutsch Standard type of wire Connection

� IEC60529 2001 Meter casing protection class


Shenzhen Inhemeter Co.,Ltd. | STS Certifications Obtained by Inhemeter 5

1.4 STS Certifications Obtained by Inhemeter


6 Shenzhen Inhemeter Co.,Ltd. | STS Certifications Obtained by Inhemeter


Shenzhen Inhemeter Co.,Ltd. | Terminology 7

1.5 Terminology


8 Shenzhen Inhemeter Co.,Ltd. | Technical Features

1.5.1 MCU

MCU (Metering and control unit) for single/three phase integrated/split keypad prepayment

energy meter, installed outdoors, is the main body of meter. Its installation complies with meter

installation requirement and also supports Rs485 communication, infrared communication and

Power Line Carrier Wave Communication (PLC). MCU can have LCD display to display all

measured data such as accumulative kWh reading, history monthly kWh consumption, credit

charged, credit balance, load profile, warning/alarms and other data. Through different

communication means, MCU can also be programmed for it operation parameters or switching

tariffs under stepped multi-tariff arrangement.

1.5.2 CIU

CIU is customer interface unit used for single phase, three-phase split keypad prepaid energy

meter. It is installed indoor, which is convenient for user to learn meter operation parameters

and load pre-purchased energy(credit).

1.6 Technical Features

Main reason for widely acceptance of STS keypad prepayment meters is due to its salient

technical feature of virtual token data transferring system.

1.6.1 Feature of STS

� STS is prepayment technology based on virtual token data exchange technology,

which fits development trend of future communication technology.

� STS data transfer standard is used to define process of transferring available

credit to electricity meter. it can also be used in water meter, gas meter and other

utility meters.

� STS is a secured message system which is used to exchange data between

vending point and meter.

� STS is an open and secured transferring standard world wide and use IEC

62055-41 as the only intonation standard for prepayment system.

� Encryption key technology provided (classed encryption key which is managed by

Utility themselves).

� Every TOKEN, meter, vending point and prepayment metering system is

protected by different levels of security control.

� Reliable encryption system, technically reduced possibility of being attacked.

� Multi-system structure ensures its timely updating technically.

� Products in system has to obtain STS certification.

� Transferring process of charging token in the system is secured and reliable.

Even in case of repeated transferring, meter will accept the data only once.

information will be effected only once and only to the meter for which TOEKN is

generated.


Shenzhen Inhemeter Co.,Ltd. | Technical Features 9

� STS prepayment meter already installed and used by hundreds of Utilities world

wide.

� Use of STS ensures the compatibility between meters manufactured by different

manufacturers. Utility can purchase products from any STS certified

manufacturer or vending system supplier freely and need not worry security of the

system.

1.6.2 Features of keypad meter

� International STS certification

� 20 digits of virtual token

� Support TOU (Time of use) and Stepped tariff function.

� Multiple credit balance alarm (local warning, Short message service and email).

� Overload disconnection/load control.

� Emergency overdraft function and friendly non-disconnection function

� Anti-stocking of credit function.

� Build-in RS485 or PLC communication module, support remote charging.

� When remote charge fails, also support local keypad charging and infrared

communication.

� Meter is installed in meter box, consumer can not and need not to touch meter.

� Build-in reliable relay, support relay failure detection and warning.

� Anti-tamper function.

� Consumer consumption history information inquiry.

� Easy to adopt split type design.

1.6.3 Strength of Networked Prepayment Management System Based on

STS Standard

� AMR system and prepayment management system can be integrated into one

common purpose system.

� Based on advanced virtual token data transferring technology of internationally

accepted IEC standard, the system can support multi-means of credit charging

and can be easily integrated in technology newly developed.

� Credit charge virtual token can be transferred with IC card, paper note, infrared

communication and PLC communication.

� With help of networking technology, meter credit charging becomes as

convenient as mobile phone credit charging. credit charging can be done both

remotely and locally.

� No card is required in process so that consumer can be released from headache

of card management.

� System security is approved and certified by IEC.


10 Shenzhen Inhemeter Co.,Ltd. | Categories of Inhe Keypad Prepayment Meter

� Automatic report of abnormal behavior of meter, all information can be inquired

via report.

� Insufficient credit can be alarmed to consumer via SMS or email.

� TOU tariff information and Stepped tariff information can be updated remotely.

� Prepayment, consumer data collection and Multi-tariff (TOU/Stepped tariff)

application can be provided at the same time.

1.6.4 Flexible Credit Purchase Means

� SMS self serviced credit purchase.

� Credit purchase via internet.

� Vending station purchase.

� Scratch card purchase.

� Credit charging via Convenient store POS machine.

� Credit purchase via purchase of charging card.

� Self-serviced credit purchase via internet banking.

� Credit purchase via Call center/special service telephone number.

� Credit purchase via ATM

1.7 Categories of Inhe Keypad Prepayment Meter


Shenzhen Inhemeter Co.,Ltd. | Categories of Inhe Keypad Prepayment Meter 11

� Based on phases of consumer：

� Single phase keypad prepayment meter

� Three phase keypad prepayment meter

� Based on installation method：

� Single phase integrated type prepayment meter.

� Single phase Split type prepayment meter.

� Three phase integrated type prepayment meter.

� Three phase Split type prepayment meter.

� Based on standards meter comply with：

� IEC standard complied, BS5685 wiring or DIN43857 wiring Single phase

integrated type prepayment meter, Single phase Split type prepayment

meter, Three phase integrated type prepayment meter and Three phase

Split type prepayment meter.

� ANSI standard complied Single phase Split type prepayment meter

� DIN rail installation requirement complied Single phase Split type

prepayment meter

� South Africa ESKOM installation requirement complied Single phase keypad

prepayment meter.

Installation diagram of integrated type keypad prepayment meter：


12 Shenzhen Inhemeter Co.,Ltd. | Security Mechanism of Keypad Prepayment Meter

Installation diagram of split type keypad prepayment meter：

1.8 Security Mechanism of Keypad Prepayment Meter

Keypad prepayment meter use standard classified encryption key encryption technology.

Every token, every meter, every vending station and vending system are protected by different

security key of different security class. The reliable encryption key system can effectively

minimize opportunity of being attacked.

� KMC——Key Management Center, management authority who are managing

encryption keys of various Utilities, Supply Groups and meter manufacturers and it

is a neutral third party.

� Meter manufacturer——meter manufacturer must become member of STSA,

manufacturer’s ID is assigned by STSA, otherwise their product will not be able to

work with system.

� Utility Supply Group——every prepayment system which is using STS technology

must apply for SGC (Supply group code).

� STSA——Standard Transfer Specification Association, responsible for managing

membership application issues.

� Encryption key card manufacturer——manufacturer of vending system encryption

key card，the card is used to encrypt data of power vending and is the main part for

system security.

� CMM——Security module manufacturer

� POS——point of sales

1.8.1 Vending System Encryption Key

� VDDK——Vending Default Key（default vending key to meter manufacturer at the

time of application）. This key is unique for each meter manufacturer and is issued

by KMC. With this VDDK, manufacturer can generate factory defult key of their


Shenzhen Inhemeter Co.,Ltd. | Security Mechanism of Keypad Prepayment Meter 13

meter product, i.e. DDTK.

� VUDK——Vending Unique Key, with VUDK unique vending key can be generated.

1.8.2 Prepayment Meter Encryption Key

� DITK——Initialization key，open encryption key of meter manufacturers, used in

meter manufacturing process and repairing process, managed by meter

manufacturer.

� DDTK——Default key，used in the process delivering meter from manufacturer to

SGC. This key is generated from unique manufacturer’s vending key (VDDK)

assigned to each meter manufacturer by KMC and is loaded into meter when meter

is in ex-work/ready for delivery status. This DDTK can only be changed with POS

provided by the manufacturer of the meter (the party who owns the unique VDDK)

and the key is defaultly generated by vending encryption card together with KMF

supplied by KMC.

� DUTK——Unique key，used in meter daily operation, credit purchase and credit

loading. DUK, when used together with vending key AUDK, is used to encrypt or

de-encrypt meter application function, i.e. encrypt or de-encrypt STS code

transferring function. After accept the meter products from meter manufacturer,

Utility need to replace DDTK with DUTK.

1.8.3 Security Principle of Encryption Key

� Generation of all keys are centrally controlled. Security of the keys of all SGCs are

assigned and ensured by KMC. Utility need not to invest resources in managing


14 Shenzhen Inhemeter Co.,Ltd. | Basic Function of Products

generation and security of keys. Generation and transferring process of all kinds of

keys (irrespective Vending system key or meter key) are all performed in encrypted

status, therefore. in any case, the contents of the key itself can not be interpreted

directly.

� All the data are transferred in form of encrypted contents to prevent these contents

from being interpreted. Following principles of security and practical, the key is so

designed to facilitate operation and control of meter after the security requirement

is satisfied.

� All the meters have unique key. With the help of above mentioned key

management flow, we can understand the distributed and related relation among

key, meter serial No., key version No., tariff index No., SGC and key type. these

relations ensured that one unique encryption key to one meter and as there is no

root encryption key present in vending system, security of the system will not be

threatened from root key side.

� Security arrangement facilitate the building of vending system as it can be used in

both PC version of vending system and networked vending system which is

operating in internet environment and with banking system.

� By using public key in meter manufacturing process and private key in meter’s

working status, as well as controlling meter working status key with SM which is

actively generating working status key with file provided by KMF, the system not

only successfully separated the security in meter manufacturing process and the

security in meter working status, but also successfully separated the meter

manufacturer and Utility. System security and safety is completely assured.

1.8.4 Security Certification

� Product certified has already obtained certification from highest international

security certification authority.

� System’s Security is as safe as Banking system, certified by NIST (National

Institute of Standards and Technology) and FIPS (Federal Information Processing

Standards)，which is also the certifying authority for banking system security

systems.

� STS system have used several encryption algorithms including DES，3DES and

STA.

� In the process of transferring encryption keys, 3DES encryption algorithms has

been used.

� Generation of charge token adopts STA special encryption algorithm, which is

similar to DES encryption algorithm. the interchange table of each manufacturer is

also allocated and controlled by STSA.

1.9 Basic Function of Products

Keypad prepayment meter products series of Inhemeter is a new generation of products which

adopt advanced technology of measurement, control and communication. They can provide


Shenzhen Inhemeter Co.,Ltd. | Basic Function of Products 15

not only accurate measurement of energy, but also reliable control on electricity charge

collection. Inhemeter’s keypad prepayment meter products (including single and three phase

keypad prepayment meter, MCU CIU etc.) have following basic functions:

� 20 digits TOEKN complies with STS specification.

� Measurement, calculation and storage of active energy, Reactive energy (for three

phase meter), apparent energy and related parameters (voltage, current, frequency,

demand, power).

� TOU (time of usage) function provided: support programmable tariff scheme.

� Historic data storage function provided: last 12 months data stored.

� Event record function：can record event such as terminal cover open, meter cover

open, power loss, phase loss, tariff change, meter date/time calibration, MD reset,

battery replacement and external magnetic influence.

� Anti-tamper function provided：can detect and record tamper behaviors such as

reverse current and circuit bypass.

� Load control function provided, for different types of consumers, different load

control threshold can be programmed to control their consumption.

� Visible/audible Low credit balance (in energy units/in monetary units) warning

signal provided, pre-warning and warning threshold credit balance level

programmable.

� Overdraft electricity switch provided.

� Minimum charity electricity consumption (basic electricity use) function provided.

� Disconnection disable function at night (or predefined periods), in holidays and

weekends provided

� Peak hour load control facility provided.

� IP54 protection provided for outdoor use MCU and IP51 protection provided for

indoor use CIU.

� Large size, wide visible angle, wide working temperature range LCD screen with

backlight

� Display items programmable

� Braille characters and key stroke tone provided on keypad

� Load threshold programmable

� 15 years life

� STS certified

� KEMA certified


16 Shenzhen Inhemeter Co.,Ltd. | Introduction

Chapter2 Single Phase Keypad Prepayment Energy Meter

2.1 Introduction

INHEMETER Single Phase Keypad Prepayment Energy Meter is for residential or commercial

use. It has been certified with STS (Standard Transfer Specification) regulation, and can

accept 20 digits STS code inputting. Adopts IEC62053, IEC62055 and IEC62056 standard,

and its design and production comply with ISO9001 standard.

Meter circuit design, structure design, choice of components and materials are made

according to allowable greater environment tolerance for reliable guarantee of lasting and

stable operation of meter. Metering components take shield protection measures in structure

design, which can resist interference of external DC and AC magnetic field, over-voltage and

high frequency electromagnetism field. Energy meter is with good electromagnetism

compatibility. These designs guarantee metering reliability and lasting stability, other

influences can be neglected and metering is highly reliable. Therefore, this meter do not need

to be calibrated during its whole life period.

Meter cover is made of fire retardant, flame resistant

and heat deformation resistant polycarbonate material.

The material is recyclable and friendly to environment.

Meter cover is double insulated and compliance with

IP54(IEC60529). Meter terminal is made of brass

material, and plated with nickel as tropical climate

energy meter. Terminal cover can be either short type

or extendable type, and fastened by a sealing screw.

Meanwhile, it can record events of opening terminal

cover after installation. Meter wiring complies with

DIN43857 and BS5685 standards.

The Meter can measure single phase two wire active AC electricity with frequency of 50Hz or

60Hz.

2.2 Technical Specification

Model：DDZ1513

Description Specification

Technical standard IEC 62052-11 2003

IEC 62053-21 2003

IEC 62055-31 2005

IEC 62055-41 2007

SANS 1524-1 2005


Shenzhen Inhemeter Co.,Ltd. | Technical Specification 17

ESKOM SCSSCAAA9

Meter Type Single-phase two wire direct access type meter

Active energy computation

Forward and reverse active electrical power are all included

in forward active electrical power

Reverse active electrical power can be computed

separately.

Anti-tamper function

(Optional)

Double circuit measurement to prevent tempering

STS manufacturer code 37

STS certificate code STS-154

Rated operating voltage (Un) 220V (230V/240V)

Frequency 50Hz±5Hz . 60Hz±5Hz

Accuracy active 1.0 级 / 2.0 级

Nominal Current （（（（Ib）））） 5A/10A

Starting current ≤20mA

Max. working current 30A,60A / 80A ,100A

Max. computation current 90A /120A

Meter constant 1600imp/kWh

Instant over current 2500A

Power impulse output mode LED

Working voltage range 240V +20%

220V -30%

Max. tolerant over voltage

(48 hours)

415V

Meter condition remains normal after test

Current 5(30)A 5(60)A

Display and indication port Large LCD screen with wide angle（≥120º）, anti-ultraviolet

function and wide temperature range. 8 Digits display,

IEC62056 display code encoding, visualized symbol,

balance energy (credit) bar indication, alarm/tip LED

indication, LCD screen with backlit instruction, user-friendly.

Character dimension（height*width）: 12X4.5mm

Power failure display function(optional)

Keypad 12-key keypad, with keypad tone & Braille signs.

Sound alarm and symbol indication of wrong keypad

inputting

Every key can be used for over 50’000 times

Power consumption Voltage circuits <2.0w / <10VA @230V

Current circuit power < 0.2 VA


18 Shenzhen Inhemeter Co.,Ltd. | Technical Specification

Working environment：：：：

Operation temperature

range

-25℃～+75℃

Storage and transport

temperature range

-40℃～+80℃

Humidity requirement Max. temperature is 55℃, relative humidity range: 0～95%

Lightning protection Built-in varistor protection

Communication port 1. Infrared communication

2. RS - 485 or RS - 232 (optional)

3. PLC

Meter reading interface: comply with ESKOM

SCSSCAAA9

Communication protocol IEC62056-21 mode C

Baud rate: 2400bps

CIU Communication port

(option)

CIU communication port (2 wire communication port) can be

adopted. In this case, meter becomes a

measuring/controlling component, with addition of one CIU

component it will become a split type keypad prepayment

meter.

Real-time clock (optional) Crystal timing real-time clock

Crystal frequency: 32.768 kHz

Clock accuracy (support temperature compensation) :

±5ppm

Within reference temperature (23℃) and working voltage

range: clock accuracy ≤0.5s/d

Within working temperature range (-25℃～+75℃ ) and

under AC power supply or back-up power supply mode:

clock accuracy≤1.0s/d

Real-time clock backup

power (option)

1. columnar battery: 3.6 V lithium-ion battery capacity

≥1200mAh

Sustain clock for more than 10 years during power failure.

2.super charged capacitor

Sustain clock for more than 36 hours during power failure.


Shenzhen Inhemeter Co.,Ltd. | Meter Shape Diagram 19

2.3 Meter Shape Diagram

2.3.1 Short terminal Cover

unit: mm

2.3.2 Extended terminal Cover

unit: mm

Transparent extended terminal cover optional


20 Shenzhen Inhemeter Co.,Ltd. | Meter Installation Diagram

2.4 Meter Installation Diagram

Short terminal cover

unit: mm

Pothook has two holes of which the distance is 10mm.

Optional transparent extended terminal cover


Shenzhen Inhemeter Co.,Ltd. | Terminals 21

2.5 Terminals

Unit: mm

Characteristics: pressure plate wiring mode is suitable for wires of different materials and diameters, and

it will not break the wire.

2.6 Wiring Diagram

2.7 Meter Active Metering Accuracy

Error limit of DDZ1513 meter, Class 1, active

Error limit percentage Load Value Power factor

IEC62053-21 standard Inhemeter Standard

0.02Ib≤I< 0.05 Ib 1 ±1.5 ±1.0

0.05Ib≤I< 0.10 Ib 1 ±1.5 ±1.0

0.10Ib≤I＜Imax 1 ±1.0 ±0.6


22 Shenzhen Inhemeter Co.,Ltd. | Meter Active Metering Accuracy

0.02Ib≤I< 0.1Ib 0.5 lag

0.8 lead

±1.5

±1.5

±1.0

±1.0

0.1Ib≤I< 0.2Ib 0.5 lag

0.8 lead

±1.5

±1.5

±1.0

±1.0

0.2Ib≤I≤Imax 0.5 lag

0.8 lead

±1.0

±1.0

±0.6

±0.6

Inhemeter single phase two wire energy meter active error range diagram

COSΦ=1 active error range

COSΦ=0.5 active error range


Shenzhen Inhemeter Co.,Ltd. | Basic Characteristics 23

2.8 Basic Characteristics

1 Energy meter cover

2 Impulse indicator light

3 Phase voltage indicator

4 Energy meter case

5 Photovoltaic (infrared) communication

interface

6 12-key keypad

7 Meter seals ( 1 on the left and the

other on the right)

8 Terminal cover (short and extended)

9 Terminal cover seal

10 Meter Panel

11 Energy meter unique serial No

12 LCD display

13 Alarm indicator light

2.8.1 Impulse Indicator Light (Red LED)

Flash frequency of the red LED impulse light indicates instantaneous power load. The more

quickly it flashes, the higher the load is. Meanwhile, it can also be regarded as standard power

impulse output so as to check the accuracy of measurement.

Meter impulse constant is 1600imp/kWh, which means red LED flashes 1600 times when 1

kWh is used.

2.8.2 Phase Voltage Indicator Light (Green LED)

The green LED light indicates phase voltage (power grid is on). When the meter is connected

to power grid which is under normal power supply condition, the meter is in working status, the

green LED indicator light is on. When power is off or meter is not in working status, the green

LED indicator light is off.

2.8.3 Alarm Status Indicator Light (Yellow LED)

The yellow LED light is the indication of meter abnormal status or alarm status. If the yellow


24 Shenzhen Inhemeter Co.,Ltd. | Measurement Function

LED light flashes or lights permanently, proper operation need to be carried out to solve the

problem otherwise it may influence energy consumption.

The yellow LED indicator light flashes: it means meter is in alarm status, for example balance

energy is less than alarm amount, power load exceeds limit, or meter is in abnormal status.

Proper action should be carried out according to information indicated on LCD display,

otherwise meter may cut off the power.

The yellow LED indicator lights permanently: it means power is cut off because balance

energy is zero, power load exceeds limit, or meter is in abnormal consumption status. Proper

action should be carried out according to information indicated on LCD display, for example,

recharge credit, reduce load, stop abnormal consumption.

2.8.4 Photoelectrical (infrared) Communication Port

The photoelectrical (infrared) communication port can be connected to portable device (HHU,

laptop, etc.) through a communication cable to read data from meter or set parameter for

meter. Communication protocol is compliance with model C in IEC62056-21.

2.8.5 12-key Keypad

The meter has a non-inductive, non-touch, silicon 12-key keypad, keypad is equipped with key

tone and Braille symbol. Token input and other actions can be operated on the keypad.

0-9 are 10 digits keys, which are used for inputting TOKEN code and short code. The other

two special keys are red delete key and blue enter key.

A. After inputting TOKEN code or short code, press Enter. If code is correct, purchased

kWh or credit will be entered into the meter and the meter will display corresponding

data item. Otherwise there will be alarm and corresponding wrong code indication on

LCD display.

B. Press Enter key without inputting any code, scroll display data item can be checked

manually.

2.9 Measurement Function

2.9.1 Active Power Measurement

The meter can measure and save single phase two wire active energy. Measurement unit is

kWh. Measurement record is default as zero in factory. When accumulated active power

measurement reaches 999999.99kWh, the power record will return to zero again

automatically.

� Both forward and reverse consumption will be added to active accumulated power.

Reverse consumption can be measured separately (optional).

� Measure/display total active accumulated energy

� Record and check(or download) daily (24 hours, 00:00---24:00) active energy of

recent 7 days.

� Record and check(or download) monthly total active energy of recent 3 months


Shenzhen Inhemeter Co.,Ltd. | Measurement Function 25

� Record and download monthly total active energy of last 12 months

� Active accuracy class: 1

� Active energy display method: 6+2 6 integrals and 2 decimals (factory default setting),

programmable setting is 7+1, 8+0 display modes.

� Double-loop anti tempering measurement function(optional function)： double-circuit

anti tempering measurement available. Real time comparing of phase and neutral

current, and always measure the circuit with larger current.

2.9.2 Maximum Demand Measurement

DDZ1513 single phase keypad prepayment energy meter can measure, analyze and record

maximum demand, date and time of maximum demand within billing period.

� Billing period is 1 month. The starting date of billing period is settable. setting range

is 1st-27th.

� Demand measurement method is slide method. The slide is 1 minute, and cycle is 15

minutes.

� Measure/display maximum demand, date/time of maximum demand within current

month

� Record and check(or download) monthly maximum demand, date/time of maximum

demand of last 3 months

� Record and download monthly maximum demand, date/time of maximum demand of

last 12 months

2.9.3 Electrical Parameters Measurement

� Phase voltage measurement/display: 3 integrals,2 decimals, unit is V, accuracy is

±1%

� Current measurement/display: 3 integrals,2 decimals, unit is A, accuracy is ±1%

� Power measurement/display: 2 integrals,3 decimals, unit is kW, accuracy is ±1%

Apparent power measurement/display (optional function): It is programmable to choose

active power or apparent power measurement/display. If programmed to apparent power

measurement, display and load control, the display item (006) will display apparent power (2

integrals, 3 decimals, unit is kVA, accuracy is ±1%). Load control will be changed from active

power (kW) threshold to apparent power (kVA) threshold, and display item (089) will display

active power (2 integrals, 3 decimals, unit is KW, accuracy is ±1%).

Note: Except for power measurement (active power, reactive power, apparent power), error percentage

of other parameter is calculated as follows:

Measurement error percentage (%) =meter measurement amount-actual amount

reference value measured ×100%

Definition of measured reference value:

Voltage is meter rated voltage. voltage measurement range is 0.6Um--1.2Um

Current is meter maximum current, current measurement range is 0.05Ib--IMAX


26 Shenzhen Inhemeter Co.,Ltd. | Special Functions

2.10 Special Functions

2.10.1 Load Breaking Function

The built-in latching relay can control the load according to balance credit, tempering status

and load status. When power is off, built-in relay will disconnect to cut off power supply. When

power is on (power grid is restored to supply power), meter will analyze the record. If it is

normal (balance credit is not zero, and meter is not under tempering, overload or any other

abnormal condition), built-in relay will reconnect to supply power, otherwise (balance credit is

zero, or meter is under tempering, overload or any other abnormal condition), built-in relay will

remain disconnected to cut off load power supply.

Note: When phase voltage is lower than operating voltage range（≤70%Un or ≤176V AC）,the

relay will not react. When phase voltage is higher than operating voltage range（≥70%Un or

≥176V AC）, meter will drive the relay to complete working status transformation.

Relay condition instruction on LCD display:

“ ” built-in relay is connected, user load is on.

“ ” built-in relay is disconnected, user load is off.

Note: If LCD indicated relay status does not match actual situation, it is possibly a malfunction,

please inform management department for servicing.

2.10.2 Zero Balance Cut off Function

When balance credit is zero built-in relay will cut off load power supply immediately to perform

power breaking function in prepaid meter.

Note: Overdraft, life-line load supply and evening (or specified time) and holidays guarantee will be

considered as exceptions. Under these exceptions load will not be cut off even when balance credit is

zero, but meter will record consumption as negative value, and the value can be deducted from next

recharge amount.

2.10.3 Overdraft Function

The meter supports overdraft function. When overdraft threshold setting (short code 022) is

not zero, the meter can perform overdraft function and overdraft amount is the amount set by

overdraft threshold (short code 022). The overdraft threshold is shown as: 6 integers and 2

decimals, unit of kWh. (default inactivated)

2.10.4 Life-line Load Supply Function

The meter supports Life-line load supply function. Under this function, when balance credit is

zero and user load is lower than life-line load, power supply will not be cut off. But if user load

is higher than life-line load, it will be regarded as overload consumption and the power will be

cut off.

When the life-line load threshold (short code 091) is not zero, the function is activated. The

threshold is shown as: 2 integers and 3 decimals, unit of kWh or KVA. (Default inactivated)


Shenzhen Inhemeter Co.,Ltd. | Special Functions 27

2.10.5 Evening(or Special Time) Guarantee Function

The meter supports evening (or special time) guarantee function. Setting can be made as that

power can not be cut off during evening (or special time). (Optional Function).

2.10.6 Holiday Guarantee Function

The meter supports holiday guarantee function. Setting can be made as that power can not be

cut off during holiday. (Optional Function).

2.10.7 Load Control Function

Load control function of DDZ1513 single phase keypad prepaid meter accords with the special

provisions of load control algorithm in SCSSCAAA9 item 7.7.2 in Eskom regulations. The

meter has load control function.

Note: Load control function is not for power load security protection. Generally load control is used for

restricting the average load upper limit in specified region (mainly for power grid security, wire losses

reduction, power lines load limit, etc).

2.10.8 Automatic Restoration Mode after Overload Power Off Delay

This function default activated. If user power load is higher than load threshold (short code

015), the meter will sound the alarm and yellow LED flashes. If user power load is higher than

load threshold and this situation lasts for 45 seconds, built-in relay will cut off power supply at

the 45th second and automatically reconnect to restore power supply after 150 seconds of

power off delay. If user power load is still higher than load threshold, above process will be

repeated. If continuous overload trip lasts 5 times within 30 minutes, the automatic

reconnection will be delayed to 45 minutes later. The user can not manually restore power

supply during the delay.

The restoration time after 5 times overload trip within 30 minutes can be set. The minimum set time is

5 minutes. factory default set time is 45 minutes.

Overload meter sound and light warning and LCD display status indicator:

The meter is locked. The relay will reconnect automatically after locking. If locking time is deducted by

every second then remaining of locking time is displayed as unit of seconds, for example 150 seconds. If

deducted by every minute then remaining locking time is displayed as units of minute. When recovery

time is decreased to zero, the relay will reconnect.

2.10.9 Relay Manual Reconnect



This is a Optional function. If user power load is higher than load threshold (short code 015),

the meter will sound the alarm and yellow LED flashes. If user power load is higher than load

threshold and this situation lasts for 45 seconds, built-in relay will cut off power supply at the

45th second. The user need to manually press blue ”enter” button on keypad to

reconnect relay after 150 seconds of power off delay. If power load is still higher than threshold,

above process will be repeated. If continuous overload trip lasts 5 times within 30 minutes, the

meter will restore power supply after the delay of 45 minutes. The user can not manually

restore power supply during the delay.

2.10.10 Load Threshold for Special Peak Time

This is a Optional function.

In order to guarantee life-line power supply, the meter accepts peak time special threshold for

the selected users.

2.10.11 Built-in Relay Disconnected When Power is off

Optional function, default activated.

This personalized optional function enables built-in relay to disconnect when the meter power

is cut off. When power is on (power grid is restored to supply power), meter will analyze the

record. If it is normal (balance credit is not zero, and meter is not under tempering, overload or

any other abnormal condition), built-in relay will reconnect to supply power, otherwise (balance

credit is zero, or meter is under tempering, overload or any other abnormal condition) built-in

relay will remain disconnected to cut off load power supply.

This function is used for anti-tempering, for example: cutting off power supply circuit when

neutral line is switched off (meter power is cut off).

2.10.12 Built-in Relay Disconnect When Terminal Cover is opened

Optional function, default activated

This personalized optional function enables built-in relay to disconnect when terminal cover is

opened. For restoration of power supply, the user need to apply for specific TOKEN from utility

or power selling station, and correctly input this specific TOKEN code into the meter to have

built-in relay reconnect.

This feature is used for anti-tempering, for example: trying to open terminal cover for

tempering.

2.10.13 Pre-warning and Warning Function When Balance Credit is short

This feature reminds user that balance credit is short and they need to recharge in time.

Besides, this function enables users to set threshold, sound alarm and balance bar by

themselves

2.10.14 Pre-warning Function

When balance credit is less than pre-warning threshold (short code 016), sound alarm and



LED indicator will be activated. Will flash alternately and will have three

bars remain only. User should recharge the meter in time. Power pre-warning threshold

amount and function can be set by inputting code: 4547 8xxx，available set amount is

0kWh~999kWh.

2.10.15 Warning Function

When balance amount is equal or less than pre-warning threshold (short code 017), the meter

will sound the alarm and yellow LED light will keep flashing. Built-in relay will be disconnected

to cut off power supply, and user should recharge in time. will flash alternately

and will have two bars remain only. User need to press blue enter button on keypad

to reconnect power. Power warning threshold can be set by inputting code: 4547 9xxx，

available set amount is 0kWh~999kWh.

Note: Power warning threshold amount must be less than pre-warning threshold amount. The

warning function will be shut off if power warning threshold amount or pre-warning threshold

amount is zero.

2.10.16 Balance Credit Bar Indication Function

The bar on LCD display will visually indicate available balance amount. This is

similar to battery power bar indication on mobile phone. Details can be found in the following

section.

2.10.17 Anti-over Credit Function

The meter can be set with maximum credit limit (short code 021). When credit exceeds limit,

the recharging TOKEN will be rejected even if it is valid. Recharge operation will work only

when the sum of balance credit and recharge credit is less or equal to credit limit.

2.10.18 Number of Balance Days Indication Function

Optional function.

The meter can estimate how many days remaining credit will last. Details is displayed in

available time (short code 012), display unit is: dd:hh (day: hour), maximum indicative time is

99 days 24 hours.

Detailed arithmetic is made according to remaining credit and maximum demand. Calculation

will be made by maximum demand last month if the demand is zero this month and by load

threshold if maximum demand is zero last month.

2.10.19 History Data Transfer and Event Record Function

Optional function.

The meter can save monthly history measurement data for latest 12 months. Date and time of



month summary are configurable and is default as 24:00 of end day of the month.

� Total kWh consumption accumulated

� Total kWh consumption of current summary cycle

� Monthly maximum demand with date & time of happening.

The meter can save daily kWh consumption (00:00----24:00) of latest 7 days.

2.10.20 Event Recording Function

The meter can record 50 events with date & time of happening. The events include:

� Tempering record clearance

� Key modified event

� Balance credit clearance

� Overload power failure

� Battery failure event

� System clock calibration event

2.10.21 Special Events Recording Function

The meter can record start time and end time of following special events.

� Opening of terminal cover

When terminal cover is opened, the integrated relay will disconnect to cut off the power.

The indicator light will be turned on, and one time of terminal cover opening event will

be recorded.

Status A: on LCD flashes, and are shown, which means terminal

cover is opened, and is still under opening status.

Status B: on LCD lights permanently, and are shown, which means

terminal cover was opened, but is closed now.

How to operate: After terminal cover is opened users need to apply to electricity utility for

reconnection of load. Electricity utility can check the event and issue a specific TOKEN. Users

enter the TOKEN to the meter to clear out temper record and reconnect the load.

Note: In order to avoid unnecessary re-records of terminal cover openings, reopen of terminal

cover will be record only when it happens 1 minute after the closing of last opening. And reopens

within 1 minute of last closing will be ignored.

Note: The meter records latest 5 times of terminal opens only.

� Power failure event

Power failure and re-supply will be both record as events with date & time of

happening.

Note: The meter records latest 5 times of power failure events only.

� Reverse power event



The meter will record reverse power event and turn on alarm light. On LCD

flashes alternately.

� Bypass tempering event

The meter will record bypass tempering and short circuit events, and turn on alarm

light. On LCD flashes alternately.

For following events, the meter can record latest 5 events with not only the date and

time of happening, but also related event data.

� Recharge event (including recharging token code, TID code, recharge amount, time of

recharge)

� Zero balance credit (including overdraft) event

2.11 LCD Display

DDZ1513 single phase keypad prepayment energy meter equipped with LCD display with

large screen, wide angle (≥120º), wide temperature range and UV protection function. The

digit display is 8 bits (6 integrals and 2 decimals, or 7 integrals and 1 decimal, or 8 integrals

only). IEC62056 display code encoding, visualized reminding symbols, balance credit bar

indication, alarm/tip LED indication. LCD display is with backlight.

Digit size (height*width): 12X4.5mm

Power failure display function(optional)

Graphic symbol Instructions

1. Code display area, support OIBS encoding display

2. Current tariff indication (in case of multi tariff

prepayment meter)

Balance credit (kWh, amount of money) indication bar

Smile & Sad face

Smiley Face :Meter in Good Condition

Sad Face： Meter in Bad Condition

Relay status indication

1. connect

2. disconnect



Measurement unit

kWh: Active energy unit

kW: Active power unit

V: Voltage unit

A: Current unit

kVA: Apparent power unit

coins symbol Unit of credit is amount of money.

Data area to indicate:

1. Measurement data and TOKEN code

2. Date: YY-MM-DD (year-month-date)

3. Time: HH-MM-SS (hour-minute-second)

Three phase prepayment meter phase voltage

indication (not valid for single phase meter)

Lighting symbol: to instruct power grid condition. Can be

ignored if there is a power indication light.

1. On – power grid supply is under normal condition

2. Off – power grid failure, power supplied by backup

battery.

Warning symbol: to indicate opening of terminal cover.

1. On: terminal cover was opened and now it is

closed.

2. Flashing: terminal cover is opened and remains

open.

Battery: to indicate battery status.

1. On: battery down, a new battery is needed

2. Off: battery is normal

2.11.1 LCD Data Display Instruction

When meter is powered on, there will be 2 seconds of self

examination during which LCD is showed full screen (as picture).

After self examination meter will start auto-scroll display. Items,

sequence and time of auto-scroll display can be configured.

Normal working condition: built-in relay is connected, meter has certain amount of credits, kWh



consumption is displayed.

Meter’s measurement and records can be checked by following three methods:

� Auto-scroll display: LCD auto-scroll displays according to configured items, sequence

and time. Display duration of each item can be programmed within 3~99 seconds. At

most 10 items can be programmed in auto-scroll display (programmed by BCS)

� Manual scroll display: press blue ENTER key manually to scroll display according to

configured items, sequence and time. Display duration of each item can be

programmed within 3~99 seconds. At most 20 items can be programmed in manual

scroll display (programmed by BCS). Manual scroll items will be displayed after

auto-scroll items, which means manual scroll items are: auto-scroll items + manual

scroll items (programmed by BCS).

� Short code display: Specific item can be checked by inputting 3 digits of short code.

Display duration of each item is same with manual scroll display. LCD will return to

auto-scroll display after short code display.

2.11.2 Balance Credit bar

① ② ③ ④ ⑤

4 bars 3 bars 2 bars 1 bar Empty / flashing

Shape of balance credit bar depends on comparing result with warning and pre-warning

thresholds (kWh/amount).

� Balance credit ≥ pre-warning threshold,4 bars appear. see diagram ①.

� Pre-warning threshold＞Balance credit ≥Warning threshold) + (pre-warning threshold

– warning threshold) / 2

3 bars appear, user should consider purchasing credit. see diagram ②.

� Warning threshold (short code 017) + (pre-warning threshold – warning threshold) / 2

＞Balance credit ≥Warning threshold

2 bars appear, user should consider purchasing credit. see diagram ③.

� Warning threshold ＞ Balance credit ≥ 1/2 Warning threshold

1 bar appears, user should purchase credit. see diagram ④.

� 1/2 Warning threshold ＞ Balance credit ＞ 0

Bar is empty, user need to purchase credit immediately. see diagram ⑤

� Balance credit = 0

Bar is empty and frame flashes, relay disconnects and power is off (except for

over-draft, night/holidays). see diagram ⑤

� Shape of balance credit bar depends on real balance (optional function)

Diagram① means balance credit is not less than 500kWh

Diagram② means balance credit is not less than 100kWh


34 Shenzhen Inhemeter Co.,Ltd. | Operation Detail

Diagram③ means balance credit is not less than 50kWh

Diagram④ means balance credit is not less than 10kWh

Diagram⑤ means balance credit is zero

� Bar diagram can be used for power load indication (optional function),

Diagram① means power load is higher than 100% of load threshold

Diagram② means power load is higher than 75% of load threshold

Diagram③ means power load is higher than 50% of load threshold

Diagram④ means power load is higher than 25% of load threshold

� Bar diagram can be used for estimated days of credit running out indication (optional

function),

Diagram① means estimated days of credit running out are more than 30 days

Diagram② means estimated days of credit running out are 15 days

Diagram③ means estimated days of credit running out are 10 days

Diagram④ means estimated days of credit running out are 5 days

2.11.3 Smile Face and Sad Face Symbol

Smile face and sad face indicate that meter operation is correct/incorrect. Alternating of

smile/sad faces means alarm.

Smile face

It means the meter is in good condition, user is allowed to use electricity

Operation is correct, input TOKEN code is right, the meter recharge is

normal.

Sad face

Relay is disconnected, meter is in abnormal condition and user cannot

use electricity.

Operation incorrect, input TOKEN code is wrong and the meter

recharge is abnormal.

2.12 Operation Detail

Via 12-keys keypad users can input TOKEN code, passwords, short codes, and data codes

and TIKEN codes.

When digits are input via keypad, they will be displayed on LCD and move from the right to the

left. Every four digits will be separated by a dash. At the same time, number of digits will be

display on left top corner of the screen. While keyboard operation, all symbols not related to

inputting code will not be displayed. Below picture shows inputting procedure - 10 digits have

been entered.

Every digit enter will be accompanied with a key tone “beep”.

Red to delete wrong digit. Every pressing can delete one digit from the right side of

screen.

Inputting interval of every two digits should not be more than 30 seconds, otherwise inputted

digits will be ignored and meter will return to normal display status.


Shenzhen Inhemeter Co.,Ltd. | Operation Detail 35

2.12.1 TOKEN Input through Keypad

� Complete TOKEN code

After inputting 20 digits TOKEN code and pressing ENTER button,

LCD display will indicate “Accept” if this TOKEN code is correct.

� Keypad will be locked for 5 seconds for TOKEN processing

� Sound notification

� Smile face

� Display the credit recharged of this time

� Display current available kWh/credit (balance credit + recharged credit) in 5 seconds

� Balance credit bar changed accordingly.

� Incomplete TOKEN code

If no digit is input continuously within 30 seconds while inputting TOKEN code, TOKEN input

is overtime.

� Inputted TOKEN codes disappear from LCD display

� Display of balance kWh/credit

� Duplicated TOKEN code

Once a TOKEN code is accepted and processed by the meter, it

will be rejected if input this code again. Meter LCD display will

indicate “Used”.

� Keypad will be locked for 5 seconds and indicate ”Used”


� Sad face

� Overdue TOKEN code

If TOKEN code is older than the oldest TOKEN code in meter, it

will be regarded as “overdue” and rejected by the meter. Meter

LCD display will indicate “Old”.


36 Shenzhen Inhemeter Co.,Ltd. | Operation Detail

� Keypad will be locked for 5 seconds and indicate ”Used”


� Sad face

� Correct but over-credit TOKEN code

A correct TOKEN code will be rejected if balance credit (after recharged) will be more than

credit limit and LCD display will indicate “Over Crd”

� Keypad will be locked for 5 seconds and indicate ”Over Crd”


� Smile face

� Wrong TOKEN code

Meter will reject TOKEN codes that of wrong numbers, wrong

meter ID, wrong keys or random codes. LCD display will indicate

“Reject-1”.

� Indicating ”Reject-1”


� Sad face

Note: Meter allows 3 times of “false and retry” when input one TOKEN. After 3 times TOKEN decoding

will be locked for a while, during which LCD indicates “Reject-1” and “PRd-Loc” (period locked, for

example Loc-028 means period lock remains 28 seconds). Period locked will increase while times of

failure increases. But it will return to default when correct TOKEN is input after locking. This function will

prevent temper of random codes.

2.12.2 Operation of Inputting Transfer Key

Meter transfer key need to be modified when install & re-install meter, vending station changes,

management software password changes or just for security purpose. Vending station and

meter must use same vending key and transfer keys, otherwise TOKEN from vending station

will not be accepted by the meter.

To change the transfer key, operator need to enter two groups of TOKEN (1st group of key

modify TOKEN and 2nd group of key modify TOKEN). Either group of TOKEN can be input

first, but inputting of both groups of TOKEN must be finished within 5 minutes otherwise the

procedure has to be restart again.

After inputting one group of TOKEN (accepted by meter correctly), the meter will indicate as

followings:

The 2nd group of key modify TOKEN is input and accepted,

please input the 1st group now.

The 1st group of key modify TOKEN is input and accepted,

please input the 2nd group now.

2.12.3 Special Functions TOKEN

The meter has several special functions such as tempering clearance and reconnect, records

clearance and overload configuration, etc. These special functions can be achieved through


Shenzhen Inhemeter Co.,Ltd. | Operation Detail 37

unique TOKEN which is generated by vending system.

� Tempering clearance TOKEN

If the power is cut off because of terminal cover open, user has to go to apply for

tempering clearance TOKEN from Management Center. After inputting the TOKEN,

the meter will reconnect to power supply.

Note: While inputting tempering clearance TOKEN, other events logged in the

recorder will be cleared as well.

� Load threshold TOKEN

Load threshold can be changed by inputting load threshold TOKEN. If existing load

threshold is too low to meet user’s need, the user can apply to Management Center

for modifying load threshold. If applying is accepted, the Management Center will

generate a load threshold TOKEN. Meter load threshold will be revised by inputting

the load threshold TOKEN.

� Balance clearance TOKEN

If meter needs to be replaced or repaired, or user needs to be changed, operator can

record the balance and then input a balance clearance TOKEN to clear the balance

credit. At the moment relay will open and power supply will be cut off.

2.12.4 Special TOKEN

Following special TOKEN codes are to support extended functions of keypad prepayment

energy meter.

� Pre-warning threshold TOKEN

Pre-warning threshold can be configured by user-self: 4547 8xxx, the threshold can

be set between 0kWh~999kWh. There will be no pre-warning if set to zero.

� Warning threshold TOKEN

Warning threshold can be configured by user-self: 4547 9xxx, the threshold can be

set between 0kWh~999kWh. There will be no warning if set to zero.

2.12.5 Test TOKEN (not Specific Meter TOKEN)

Some TOKEN codes are related to function test (not specific meters). Once these test TOKEN

codes are accepted, meter will start corresponding test.

Functions TOKEN

Change the status of relay 0000 0000 0001 5099 7584

HMI test, which includes turning on all the LEDs,

displaying all segments on the LCD, and activating

the buzzer

0000 0000 0001 6777 4880

Display the total units counter 0000 0000 0002 0132 8896

Display the key revision number and key type 1844 6744 0738 4377 2416

Display the tariff index 3689 3488 1475 5332 2496

Display the power limit level 0000 0000 0012 0797 4400


38 Shenzhen Inhemeter Co.,Ltd. | Communication Port

Display the tamper state 0000 0000 0022 8172 8512

Display the instantaneous power 0000 0000 0044 2920 8064

Display the software version number 0000 0000 0087 2419 5840

Test all the above functions (tests run sequentially) 5649 3153 7254 5031 3471

When test all functions (sequence of tests as per the list above), each item will take 2.5

seconds. While individual item test will take 5 seconds. The meter will return to normal

operation mode after test.

Retrieval of measuring data, computing data, recording data, setup parameter

and status, etc.

If short code is not exist, the data item is empty.

2.13 Communication Port

The meter has communication ports of photoelectric (infrared), RS485/232, ESKOM credit

reader port and twin cable communication port to CIU.

2.13.1 Photoelectric (Infrared) Communication Port

Through Photoelectric(infrared) communication (as picture below) data such as kWh used,

maximum demand, consumption history of past 12 months, monthly maximum demand of past

12 months with date and time, daily consumption of latest 7 days and events record etc can be

retrieved. And meter configuration can be realized if keys are given.

Notice: It’s suggested that configuration should be done according to user’s requirement before meters

leave factory.

Accessories below can be provided if required:


Shenzhen Inhemeter Co.,Ltd. | Communication Port 39

Accessory Name Instruction

Photoelectric communication cable Cable for communication between photoelectric port

and CMRI/HHU.

HHU： TP900

Psion Teklogix 7525 / 7527S

CMRI：CMRI1010/CMRI1006

Photoelectric hand held unit (HHU), HHU

multi-charger. communication cable between HHU and

BCS (basic computer station), and operation system.

INHE AMI2010 INHEMETER Smart Power Management System

Software

For detailed introduction of INHE AMI2010, refer to introduction manual.

Standard: IEC 62056-21 (replacement of IEC 61107).

2.13.2 RS232/RS485 Communication Port (Optional)

RS232 communication port is prepared for AMR purpose in future.

2.13.3 Credit Reader Interface (Eskom Port) - Optional

Meter has credit reader interface (ESKOM port). It complies with ESKOM specification

SCSSCAAA9 and the reader interface is on PCB board of the meter. User can insert the probe

through hole on meter case to read credit. When this port is not used, plastic seal should be

inserted into the hole to prevent insects.

Notice: For security of operator and meter, power MUST be cut off during operation through the Credit

Reader Interface.


40 Shenzhen Inhemeter Co.,Ltd. | Safety Regulation

2.13.4 Twin Cable Communication Port

Optional port. In case of split type keypad prepayment meter, the meter will work as

measurement control unit (MCU)

MCU twin cable communication port is used for connection to user display unit (CIU).The

communication port does not have polarity, and it adopts twin cable port to connect

measurement control unit (MCU) and user display unit (CIU).

Notice: Maximum communication distance between MCU and CIU is 130 meters. But the distance will

be affected by resistance (max 40 ohm) as well.

2.13.5 Auxiliary Terminal Wiring Diagram

Communication port & test port for impulse output

2.14 Safety Regulation

The meter can be installed outdoor, indoor or in meter box. And its keypad, LCD, cover and

case are safe and insulated. But wiring security must be considered during installation incase

wires or terminals are left exposed.

2.15 Installation

� Before installation, please make sure the appearance, seals, utility inspection notice

are complete. Meter should be installed on solid & fire resistant wall. Recommend

height is 1.4m~1.7m.


Shenzhen Inhemeter Co.,Ltd. | Installation 41

� Wiring method should follow diagram printed in terminal cover. Copper wire/terminal

is recommended.

� Insert wires by loosing the screws on terminal. Screws need to be fasten properly to

make sure security and good contact.

� Close the terminal cover after wiring and seal the cover with sealing screw from

utility.

� Fasten the wires tightly and always tidy them gently. Keep the meter clean from dust

and water etc.

� Turn on the power supply and check meter’s working condition. Record data if it

works properly. Otherwise need re-check the installation and connection.

� Handle with care to prevent dropping and bumping during installation.

� Pay attention to operator and meter security during installation.

Notice: the meter adopts double circuits measurement method (anti-temper) which will measure both

phase and neutral lines and computing with the one of larger current only. Operator should make sure

the wiring and connection are correct during installation, so as to avoid repeated computations. Diagrams

of wiring are as follows:

Correct Installation


42 Shenzhen Inhemeter Co.,Ltd. | Installation

Incorrect Installation

Neutral line of B1,C1 and C2 are incorrect.

Error 1: Neutral incorrect. Extra kWh record. “A”=A+B1

Error 2: Neutral incorrect. Extra kWh record. “C”=C+C1+C2

Error 3: Neutral incorrect. Extra kWh record. “C1”= C1+C2

Correct: B, B1 and C2


Shenzhen Inhemeter Co.,Ltd. | Technical Specification 43

Chapter3 Three Phase Keypad Prepayment Energy Meter

3.1 Technical Specification

DTZ1513 three-phase keypad prepayment energy meter is to measure 50Hz or 60Hz

three-phase 4-wire directly connected AC active electricity energy (reactive electricity energy),

the dimension is as follows:


Technical standard IEC 62052-11 2003

IEC 62053-21 2003

IEC 62053-23 2003

IEC 62055-31 2005

IEC 62055-41 2007

IEC 62055-51 2007

SANS 1524-1 2005

ESKOM SCSSCAAA9

Meter Type Three-phase 4-wire directly connected meter


Forward and reverse active electrical power are all included in

forward active electrical power

Reverse active electrical power can be computed separately.


44 Shenzhen Inhemeter Co.,Ltd. | Technical Specification

Reactive energy

computation(optional)

Quadrant reactive power energy computation

Can compute reactive input and reactive output respectively


Rated operating voltage (Un) 3X230V/400V (3X220V/380V ，3X240V/415V)


Active computation accuracy 1.0 / 2.0

Reactive computation

accuracy

2.0 /3.0

Nominal Current（（（（Ib）））） 5A /10A

Max. computation current 80A /80A.100A

Starting current ≤20mA ≤40mA

Meter constant 400imp/kWh

Display and indication port Large LCD screen with wide angle（≥120º）, anti-ultraviolet function

and wide temperature range. 8 Digits display, IEC62056 display

code encoding, visualized symbol, balance energy (credit) bar

indication, alarm/tip LED indication, LCD screen with backlit

instruction, user-friendly.

Character dimension( height*width): 12X4.5mm

Keypad 12-key keypad, with keypad tone & Braille signs.

Sound alarm and symbol indication of wrong keypad inputting

Every key can be used for over 50’000 times

Power consumption Voltage circuit power: <2.0W or <10VA@230V

Current circuit power: < 0.2 VA

Communication port 1. Infrared communication

2. RS - 485 or RS - 232 (optional)

3. PLC

Meter reading interface: comply with ESKOM SCSSCAAA9

Communication protocol IEC62056-21 mode C

Baud rate: 2400bps

CIU Communication port

(option)

CIU communication port (2 wire communication port) can be

adopted. In this case, meter becomes a measuring/controlling

component, with addition of one CIU component it will become a split

type keypad prepayment meter.

Real-time clock (optional) Crystal timing real-time clock

Crystal frequency: 32.768 kHz

Clock accuracy (support temperature compensation) : ±5ppm

Within reference temperature (23℃) and working voltage range:

clock accuracy ≤0.5s/d

Within working temperature range (-25℃～+75℃) and under AC

power supply or back-up power supply mode: clock accuracy≤1.0s/d

Real-time clock backup power 1: columnar battery: 3.6 V lithium-ion battery capacity ≥1200mAh


Shenzhen Inhemeter Co.,Ltd. | Meter Shape Diagram 45

(option) Sustain clock for more than 10 years during power failure.

2: super charged capacitor

Sustain clock for more than 36 hours during power failure.

3.2 Meter Shape Diagram

unit: mm

Transparent extended terminal cover optional


unit: mm



46 Shenzhen Inhemeter Co.,Ltd. | Wiring Diagram

Characteristics: pressure plate wiring mode is suitable for wires of different materials and diameters, and

it will not break the wire.

3.5 Wiring Diagram


Shenzhen Inhemeter Co.,Ltd. | Introduction 47

Chapter4 Split Keypad Prepayment Energy Meter

4.1 Introduction

INHEMETER Split Keypad Prepayment Energy Meter is civil or commercial used single-phase

multi-components keypad prepayment energy meter compliance with STS (Standard Transfer

Specification) regulation, which can accept 20 digits STS code inputting and pass STS test

certification. It includes two components:

INHEMETER split keypad prepayment energy meter adopt international IEC62053, IEC62055

and IEC62056 standard, and the design and production comply with ISO9001 standard.







influences can be neglected and metering is highly reliable. Therefore, this meter does not

need to be calibrated during its whole life period.

Meter cover is made of fire retardant, flame resistant and heat deformation resistant

polycarbonate material. It can be recycled after the end of its life cycle to save environment.

MCU cover is double insulated and compliance with dust and watch protection standard IP54

(IEC60529). MCU terminal is made of brass material, and plated with nickel as tropical climate

energy meter. MCU terminal cover can be short or extended, and fastened by a sealing screw.

Meanwhile, it can record events of opening terminal cover after installation. MCU wiring

complies with DIN43857 and BS5685 standards.

Split keypad prepaid energy meter operation diagram:


48 Shenzhen Inhemeter Co.,Ltd. | Customer Interface Unit (CIU)

4.2 Customer Interface Unit (CIU)

CIU is customer interface unit used for single phase, three-phase split keypad prepaid energy

meter. It is installed indoor, which is convenient for user to learn meter operation parameters

and load pre-purchased energy (credit).

CIU model for single, three phase split keypad prepaid energy meter is DDS1513-CIU：

DDZ1513-CIU-CABLE Two core communication cable(including RS485 / RS232)

DDZ1513-CIU-PLC PLC(Power line wave-carrier communication)

DDZ1513-CIU-RF Low power wireless communication

4.3 CIU Technical Parameters

4.3.1 Two Core Communication Cable

DDZ1513-CIU-CABLE

Technical parameter classification Technical parameter value

Communication types Two core communication cable, insulation, step less,

half-duplex

Supply mode 12DC （got from MCU）≤30mA

Communication distance 130 meters (maximum linear resistor 40 ohm),

Keyboard 12-key keyboard, keyboard tip sound , error indication of

keyboard inputting., with Braille signs

Cable specification 2.5 mm2

Dimension 160mm(L) ×87.6mm(W) ×41.2mm(H)

4.3.2 PLC Power Line Wave-carrier Communication

DDZ1513-CIU-PLC


Communication types Power line wave-carrier communication, stepless, half-duplex

Supply mode Frequency AC/ battery (supply power at AC failure, optional)

Communication distance 200 meters


Shenzhen Inhemeter Co.,Ltd. | Measurement and Control Unit (MCU) 49





4.3.3 RF Low Power Wireless Communication

DDZ1513-CIU-RF


Communication types Adopt international general ISM (industry, science and

medicine) / SRD (short distance ) frequency band, low power

consumption, exemption frequency application of wireless

communication mode to realize wireless communication

between CIU and MCU

Frequency band (choose and confirm central frequency

according to regulations from different countries or regions)

300-400-348MHZ, 464MHz, 800-928MHz

Supply mode Frequency AC and battery without (AC)

Communication distance ≥100m （open areas ）

≥50m (with obstacles)





4.4 Measurement and Control Unit (MCU)

MCU: Measurement and Control Unit

Metering and control unit for single phase split keypad prepaid energy meter, installed

outdoors.

Three communication modes with MCU:

DDZ1513-CIU-CABLE Two core communication cable

DDZ1513-CIU-PLC Power line wave-carrier communication

DDZ1513-CIU-RF Low power wireless communication

4.5 MCU Technical Parameters


Single-phase two wire direct access type meter Meter Type

Three-phase 4-wire directly connected energy meter.


Forward and reverse active electrical power are all included

in forward active electrical power

Reverse active electrical power can be computed


50 Shenzhen Inhemeter Co.,Ltd. | Single Phase Split Keypad Prepayment Meter

separately.

Anti-tamper function

(Optional)

Double circuit measurement to prevent tempering


STS certificate code STS-154

Single Phase:220V (230V/240V) Rated operating voltage (Un)

Three Phase: 3X230V/400V (3X220V/380V ，

3X240V/415V)


Single Phase:Class1.0 / Class2.0 Accuracy active

Three Phase: Class1.0 / Class2.0

Nominal Current（（（（Ib）））） 5A/10A

Starting current ≤20mA

Max. working current 30A,60A / 80A ,100A

Max. computation current 90A / 120A

Meter constant Single phase:1600imp/kWh

Three phase:400 imp/kWh

Single phase:240V +20% 220V -30% Working voltage range

Three phase: 380-30% 415+20%

4.6 Single Phase Split Keypad Prepayment Meter

DDZ1513-MCU-BS:MCU without keyboard

and display component

DDZ1513-MCU-KBS:MCU with keyboard and

display component

Split keypad meter with IC Card


Shenzhen Inhemeter Co.,Ltd. | Three Phase Split Keypad Prepayment Meter 51

DTZ1513-MCU-BOX

Measurement and Control Unit

DDZ1513-CIU

Customer Interface Unit

4.7 Three Phase Split Keypad Prepayment Meter

Three-phase split keypad prepayment meter: DTZ1513-MCU-BS/DTZ1513-MCU-BSK

DTZ1513-MCU-BS is a MCU unit without LCD screen and keyboard interface.

DTZ1513-MCU-BSK is a MCU with LCD screen and keyboard interface.

4.8 Three Phase Split Type Measurement Box

The CT ratios are as follows:

200/5A 300/5A 500/5A 800/5A 1200/5A

There are circuit breakers in the measurement box.

DTZ1513-MCU-BS


DDZ1513-CIU


DTZ1513-MCU-KBS


DDZ1513-CIU




Chapter5 DIN Rail Mounting Split Keypad Prepayment

Energy Meter

5.1 Introduction

DIN rail mounted Single Phase Split Keypad Prepayment Energy Meter is civil or commercial

used single-phase multi-components keypad prepayment energy meter compliance with STS

(Standard Transfer Specification) regulation, which can accept 20 digits STS code inputting

and pass STS test certification. It includes two components:

A: MCU：Measurement and Control Unit. Split keypad prepayment energy meter MCU unit can

be installed outdoor, or in centralized meter box or on telegraph pole.

B: CIU: Customer Interface Unit. Split keypad prepayment energy meter CIU unit is installed

indoor, which is convenient for user to learn meter operation parameters and load

pre-purchased energy (credit). Inhemeter DIN rail mounted single phase split keypad

prepayment energy meter adopt international IEC62053, IEC62055 and IEC62056 standard,

and the design and production comply with ISO9001 standard.

DDZ1513-MCU-DIN is MCU without display component

DDZ1513-MCU-DIN-LCDS is MCU with display component







influences can be neglected and metering is highly reliable. Therefore, this meter does not

need to be calibrated during its whole life period.

Meter cover is made of fire retardant, flame resistant and heat deformation resistant

polycarbonate material. It can be recycled after the end of its life cycle to save environment.

MCU cover is double insulated and compliance with dust and watch protection standard IP54

(IEC60529). MCU terminal is made of brass material, and plated with nickel as tropical climate

energy meter. MCU mounting complies with DIN VDE 0611-1 and EN60947-7-1 standards.


Shenzhen Inhemeter Co.,Ltd. | Three Methods for Communication With MCU 53

DIN rail mounted single phase split keypad prepaid energy meter operation diagram:

5.2 Three Methods for Communication With MCU

� DDZ1513-CIU-CABLE Two core communication cable

� DDZ1513-CIU-PLC Power line wave-carrier communication

� DDZ1513-CIU-RF Low power wireless communication

MCU of DIN rail mounted single phase split keypad prepaid energy meter is installed outdoors.

Generally it can be installed in special metering box by fixing on DIN rail without mounting

screws.

5.3 Three Communication Modes With MCU

DDZ1513-CIU-CABLE Two core communication cable


54 Shenzhen Inhemeter Co.,Ltd. | Three Communication Modes With MCU

DDS1513-CIU-PLC Power line wave-carrier communication

DDS1513-CIU-RF Low power wireless communication

DDZ1513-MCU-DIN : MCU without display component

DDZ1513-MCU-DIN-LCD : MCU with display component


Shenzhen Inhemeter Co.,Ltd. | MCU Shape Drawing 55

5.4 MCU Shape Drawing

Unit: mm

5.5 MCU Installation Diagram

Unit: mm


56 Shenzhen Inhemeter Co.,Ltd. | DIN Rail Mounting Diagram

5.6 DIN Rail Mounting Diagram

Unit: mm


Shenzhen Inhemeter Co.,Ltd. | MCU Terminals 57

5.7 MCU Terminals

Unit: mm


58 Shenzhen Inhemeter Co.,Ltd. | MCU Typical Wiring Diagram

5.8 MCU Typical Wiring Diagram


Shenzhen Inhemeter Co.,Ltd. | Characteristics 59

5.9 Characteristics

MCU unit without display components

1 Meter top terminal

2 Meter data reading port

3 CIU communication cable port

4 Meter bottom terminal

5 Meter MCU unique serial number

6 MCU and CIU communication status

indicator light

7 Meter impulse indicator light

8 Meter alarm status indicator light

9 Photoelectric communication port

MCU unit with display components

1 Meter top terminal

2 Meter data reading port

3 LCD display screen

4 CIU communication cable port

5 Meter bottom terminal

6 Meter MCU unique serial number

7 MCU and CIU communication status indicator light

8 Meter impulse indicator light

9 Meter alarm status indicator light

10 Photoelectric(infrared) communication port


60 Shenzhen Inhemeter Co.,Ltd. | Single phase 2-wire/3-wire split type keypad prepayment energy

meter complying to ANSI

5.10 Single phase 2-wire/3-wire split type keypad prepayment energy

meter complying to ANSI

5.11 Single Phase ESKOM Keypad Prepayment Energy Meter

DDZ1513-ESKOM-ESKOM is a single-phase keypad prepayment energy meter complying to

STS(Standard Transfer Specification) protocol and South African ESKOM SCSSCAAA9

back-mounting(socket mounting), can enter 20-bit STS code, certified by STS Association.


Shenzhen Inhemeter Co.,Ltd. | Single Phase ESKOM Keypad Prepayment Energy Meter 61

5.11.1 Outline of the mete

Unit: mm

Including the mounting base:

Excluding the mounting base:


62 Shenzhen Inhemeter Co.,Ltd. | Single Phase ESKOM Keypad Prepayment Energy Meter

Mounting base of the meter:

Mounting base of the meter:


Shenzhen Inhemeter Co.,Ltd. | Single Phase ESKOM Keypad Prepayment Energy Meter 63

Wiring of the mounting base:



Chapter6 SMARTVend Anywhere (System)

6.1 Introduction

SMARTvend: Inhemeter smart network power vending management system(Smart Vending

Anywhere) is introduced after years’ of experience of developing IC prepayment energy meter,

keypad prepayment energy meter, SMS prepayment energy meter power vending

management system and after-payment power vending management mode. It uses B/S and

C/S mixing network construction and network data is under centralized management. Value

added service, various power vending, 7*24 power vending anywhere can be realized by

co-operation with the bank, the network companies, etc. It is mainly used to manage energy

charge collection of utilities, companies, schools and etc, and plays important role in automatic

collection of energy charges and load control. Smart Vending Anywhere System（SVAS）brings

convenience, efficiency and security for users and thus simplifies the complexity of

management, reduces cost and improves revenue collection.

6.2 SMARTvend Characteristic

� Network based system structure and operation mode

� Multi-method Billing and compatible with various billing solution

� Various power vending methods available, i.e. vending through internet, ATM,

agent, scratch card.

� Multi-station or single station management for vending points. Vending points can

be centralized for control and vending authorization.

� Support all STS certified meter and IC card prepayment meter as well.

� Abundant graphic statistic and analysis report forms.

� Multi-level management mode and digital certificate authentication system to

ensure system security.

� Users are given rights according to position which can be done to each control point

of each module.

� Built-in third party data exchange port and can communicate with external

marketing and automatic meter reading system.

� Desktop user-defined

6.3 SMARTvend Structure

Servers Applicable:

� Database Server: used for storage of business data.

� Web Server: used for providing HTTP service to connect vending points of utility

company, and connection for bank payment collection, internet power vending,

vending agency, etc.


Shenzhen Inhemeter Co.,Ltd. | SMARTvend Compatibility and Scalability 65

� Data Exchange Server: maintain multi‐layer system data exchange and data

exchange with different suppliers.

� Affair Server: for affair data processing and encryption, etc.

� Management Terminal: for system comprehensive maintenance and report forms

analysis.

Notice: Above‐mentioned server application can be grouped according to customer demand and

development condition. all service function operated in one server is supported as well.

Other Systems:

� Power marketing and its business system.

� Telecommunication port: payment collection port provided by bank for ATM

automatic and internet power vending.

� Other System port: payment collection through agents like network company,

telecommunication company or scratch card.

6.4 SMARTvend Compatibility and Scalability

SMARTvend SVAS adopts unified power vending and revenue collection method, compatible

with various IC prepayment energy meters, STS keypad prepayment energy meter, SMS


66 Shenzhen Inhemeter Co.,Ltd. | Diversified Power Vending Module

prepayment energy meter researched by Inhemeter, as well as STS keypad energy meter

made by different manufacturers. Meanwhile, it makes SMARTvend SVAS compatible with

prepayment energy meter with different type and different protocol, prepayment water meter,

prepayment hot water meter and gas meter by system’ third party extended interface base.

6.5 Diversified Power Vending Module

SMARTvend SVAS provides various vending modes in order to bring convenience and

efficiency to users and reduce workload of vending personnel.

� ATM: Users purchase electricity from ATM self-help equipment. Recharge will be

made by connecting with bank system after safety certificate. ATM will read the

card and print digit code.

� PC recharge: Users enter online network vending website to purchase electricity(IC

card reader is needed for operation for IC prepayment energy meter). After paying

and confirming the payment on internet, vending management center will make

safety authentication and give vending instruction for printing digit code.

� POS, PDA recharge: Users enter network vending website by internet with

handhold computer for recharge (It can not recharge for IC prepayment energy

meter).

� Agent vending: Banks or other agent vendors authorized by the utility provide

vending business for users.

� Recharge hall: Integrated petty charges recharge hall provide electricity vending

business.


Shenzhen Inhemeter Co.,Ltd. | SMARTvend Functions 67

� Vending hall: Power supply system provides internal vending network.

� Scratch card: Telecom companies use their value added service to transfer the

recharge payment and give recharge instruction (It can not recharge for IC

prepayment energy meter).

� SMS: Telecom companies use their value added service to transfer the recharge

payment, and after successful recharge transferring, recharge can be made by

SMS. It is applicable for SMS prepayment energy meter and STS keypad

prepayment energy meter (It can not recharge for IC prepayment energy meter).

6.6 SMARTvend Functions

SMARTvend SVAS has three versions: standard version, professional version and enterprise

version. Different version system contains different functions and supports different meter type.

Customers can choose according to their actual business requirement.

SMARTvend SVAS has following function modules:

1） Daily business processing module

Customer data maintenance, power consumption contact signing and canceling, petty

charge collection, power vending, meter exchange, card complement, card data

maintenance, and complementally bill printing.

2） Power vending network management module:

Contact signing or canceling of vending network, vending terminal management, vending

network reconciliation, vending network permission, commission payment, etc

3） Tempering module

Customer power off/power recovery, tempering charge collection, handling charge

collection of power off made by customers, etc

4） Charge collection module

Petty charge collection, capacitance increase charge collection, meter freezing charge

collection

5） Reports outputting module

Account opening integrated report, vending integrated report, consumption integrated

report, tempering integrated report, vending network integrated report, charges integrated

report, etc daily report outputting, consumption and vending and other analyses report

outputting

6） System management module

Company information management, department management, role permission

management, user management, electricity price management, system operation data

management, data management, data maintenance, data exchange management, etc,

7） Assistance module: online assistance display

6.7 Consist of System

Inhemeter keypad prepaid power vending management system (Smart Vending


68 Shenzhen Inhemeter Co.,Ltd. | Consist of ISVA

Anywhere)uses B/S and the C/S mixing network construction and network data is under

centralized management. Value added service and various power vending can be realized by

co-operation with the bank, the network companies, etc. INHEMETER Smart Vending

Anywhere (ISVA) brings convenience, efficiency and security for users and thus simplifies the

complexity of management, reduces cost and improves revenue collection.

6.8 Consist of ISVA

1. Smart Vending Anywhere (System)

2. Database Software (Used by ISVA)

3. Computer Installed with ISVA

4. Power Vending Encryption Module

5. TOKEN Code Printer, card reader or barcode reader

6. Handheld Meter Reading Device (optional)

6.9 Servers Applicable

� Database Server: used for storage of business data.

� Web Server: used for providing HTTP service to connect vending points of utility

company, and connection for bank payment collection, internet power vending,

vending agency, etc.

� Data Exchange Server: maintain multi‐layer system data exchange

and data exchange with different suppliers.

� Affair Server: for affair data processing and encryption, etc.

� Management Terminal: for system comprehensive maintenance and report forms

analysis.

Notice: above‐mentioned server application can be grouped according to

customer demand and development condition. all service function operated in one

server is supported as well.

Other Systems:

� Power marketing and its business system.

� Telecommunication port: payment collection port provided by bank for ATM

automatic and internet power vending.

� Other System port: payment collection through agents like network company,

telecommunication company or scratch card.


Shenzhen Inhemeter Co.,Ltd. | System Characteristic 69

6.10 System Characteristic

� Network based system structure and operation mode

� Multi-method Billing and compatible with various billing solution

� Various power vending methods available, i.e. vending through internet, ATM,

agent, scratch card.

� Multi-station or single station management for vending points. Vending points can

be centralized for control and vending authorization.

� Support all STS certified meter and IC card prepayment meter as well.

� Abundant graphic statistic and analysis report forms.

� Multi-level management mode and digital certificate authentication system to

ensure system security.

� Users are given rights according to position which can be done to each control

point of each module.

� Built-in third party data exchange port and can communicate with external

marketing and automatic meter reading system.

� Desktop user-defined：

Multi‐Statio Single Station


70 Shenzhen Inhemeter Co.,Ltd. | System Characteristic

Chapter7 AMR/AMM of INHEMETER

The Public Basic Energy/Resources Information Acquisition & Control Management System

(AMR/AMM) of INHEMETER Instrument Co., Ltd is a comprehensive AMR/AMM solution

which contains local data acquisition of electricity/water/gas meters, data transmission by

remote communications, data storage in system master station, data analysis and marketing

management. It provides energy/resources consumption data and control & management

methods to the public utilities of electricity, water and gas during their business applications, in

order to achieve rational resources distribution, reduce energy loss, improve energy/resources

utilization efficiency, save resources and protect environment, and maximize the social

benefits ultimately.

The Public Basic Energy/Resources Information Acquisition & Control Management System

(AMR/AMM) can effectively promote the utilities to realize their standardization and scientific

management in measurement, meter reading, control and charging mode etc. It can provide

accurate, real-time and reliable date from the source of users’ energy/resources consumption,

reflect customer demand quickly and enhance the utilities’ service level and their fast response

ability to market changes. In order to fulfill social responsibilities and respond to the energy

saving policies of Government, this system provides a strong technical support to implement

time-of-use tariff & stepped tariff of electricity/water/gas and adjust electricity/water/gas price


Shenzhen Inhemeter Co.,Ltd. | System Characteristic 71

timely and effectively based on the changes in market of energy/resources supply and

demand.

The Public Basic Energy/Resources Information Acquisition& Control Management System

(AMR/AMM) of INHEMETER Instrument Co., Ltd is divided into the following three parts based

on its physical structure: System Master Station, Communication Channel, and

Acquisition/Control Equipments of Utility Meters.

System master station can be built with united or separate network based on different needs

and different places. If its network is connected to public communication channel or other

system, the firewall should be adopted for security isolation and to ensure information security

of the system. The physical structure of System Master Station network mainly consists of

database servers, disk arrays, application servers, front servers, interface servers,

workstations, GPS clock, firewall, and relative network equipments etc. The scale of system

master station depends on the quantity of utility meter users, data acquisition and control

points in the system as well as the number of concurrent workstations.

Communication Channels are remote communication channels between System Master

Stations and terminals, which mainly includes special optic fiber channel, GSM/GPRS/CDMA

public wireless networks, PSTN public cable network channel and the special communication

networks built by utilities etc.

Acquisition/Control Equipments of Utility Meters are the metering data acquisition terminals

and utility meters installed in the measurement/control sites of public basic energy/resources.

For the power industry, it includes mainly metering data acquisition terminals in power

plant/substation, special transformer acquisition terminals, public transformer acquisition

terminals, remote communication multi-function meters, data concentrators in low-voltage

transformer district as well as all the single-phase/three-phase watt-hour meters with function

of short-range communication. For water/gas industry, it includes mainly concentrators,

collectors as well as all the water/gas meters

With function of short-range communication. Short-range communication mode can be

selected as power line carrier (PLC), RS-485, M-bus, Zigbee, wireless (RF) and so on.


72 Shenzhen Inhemeter Co.,Ltd. | Prepayment Energy Meters of Inhemeter

Chapter8 Available Types of Keypad Prepayment Energy Meter

8.1 Prepayment Energy Meters of Inhemeter


Shenzhen Inhemeter Co.,Ltd. | Prepayment Energy Meters of Inhemeter 73


74 Shenzhen Inhemeter Co.,Ltd. | Order List of Single-phase Keypad Meter

8.2 Order List of Single-phase Keypad Meter

8.3 Order List of Single-phase Split Type Keypad Meter


Shenzhen Inhemeter Co.,Ltd. | Order List of DIN rail-mounting Single-phase Split Keypad Meter 75

8.4 Order List of DIN rail-mounting Single-phase Split Keypad Meter

8.5 Order List of Single-phase ESKOM Keypad Meter


76 Shenzhen Inhemeter Co.,Ltd. | Order List of Three-phase Keypad Meter

8.6 Order List of Three-phase Keypad Meter

8.7 Order List of Three-phase Split Keypad Meter


Shenzhen Inhemeter Co.,Ltd. | Order List of Related Software and Accessories 77

8.8 Order List of Related Software and Accessories

No. Model Name Unit diagram

1 SMARTvend

Prepayment power

vending management

system for IC card and

Keypad

set

Hand Held Unit

(HHU)

PSION TEKLOGIX

WORKABOUT PRO3

7527C-G2

(including meter

reading software)

set

Huaxia

PDA-2

2

(including meter

reading software)

set

Optical

communication

cable

3

TP-USB-IEC

pcs

Security Module

4 TSM210-USB

set

Magnetic card reader 5

YD-626 set

Bill printer

Desktop thermal

printer SRP150

set

6

Desktop multi-stylus

printer SRP270 set

Portable printer SPP-R200BG

7

(with leather case and

battery

set

78 Shenzhen Inhemeter Co.,Ltd. | Contact with us

� Contact with us

enzhen INHEMETER Co.,Ltd.

Add: 7/F,Science & Industry Park Building,

Science & Industry Park,Nanshan District,

Shenzhen,China.

P.C.:518057

Tel: +86-755-26616686

Fax: +86-755-26616689

Web: www.inhemeter.com

E-mail: [email protected]

[email protected]

Documents

Keypad prepayment energy meter and Vending System …docshare01.docshare.tips/files/26110/261103526.pdf · keypad Prepayment Energy Meter and Vending System Solution Shenzhen Inhemeter