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  • 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

    3.3 Meter Installation Diagram 45

    3.4 Meter Installation 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:

    EC6205521 standardization structure

    IEC6205531 Prepayment meters for Active Energy (Class 1 and 2)

    IEC6205541 STS standard data transferring protocolApplication layer data transferring

    protocol

    IEC6205551 STS standard data transferring protocolPhysical layer data exchange

    carriernumeric and magnetic card carrier

    EC6205552 STS standard data transferring protocolPhysical layer data exchange

    carriercommunication virtual carrier

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

  • Keypad Prepayment Energy Meter and Vending System Solution

    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 others 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

    manufacturers code is 37.

    Inhe meters Keypad prepayment metering products also comply with following standards:

    IEC 62052-11 2003 General requirement for Electricity measurement equipmentAC

    test and test con

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