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Product Catalog
1 / 11
MHC-3000 Series Ultrasonic Flow Meters
Difference between the meters
Model MHC-3000B MHC-3000G MHC-3000H MHC-3000P
Type wall mount integrated handheld portable
Principle transmit-time technology
Function permanent or continuous measurement survey, inspection or detection, intermittent
Portability w/o yes
Transducer
Installation
clamp-on, insertion,
flange or thread thread or flange clamp on
Transducer Scheme Single-path
Power Supply AC85~265V or
DC8~36V DC24V
rechargeable 1900mA Ni-MH built-in
battery
Output 4-20mA/RS485/OCT 4-20mA/RS485 w/o, or RS485 4-20mA/RS485/OCT
Heat measurement be realized with
PT100 resistor w/o be realized with PT100 resistor
SD Card w/o yes
Printer w/o yes
Application Sea water, general water, kerosene, gasoline, fuel oil, crude oil, propane, butane, diesel oil,
castor oil, peanut oil, alcohol, and other liquids
Image
Product Catalog
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1. MHC-3000B
The MHC-3000B is for permanent flow applications. Its modularity offers comprehensive configuration options to make
the instrument suitable for everything from simple water flow measurements to energy flow monitoring, automated
process control and product recognition.
The transmitter electronics are housed in a corrosion-resistant, wall mounted enclosure and can be powered by AC or DC
power supplies. By offering a wide range of input, output and communication interfaces such as RS 485, Modbus and
relay. The flow meter can easily be connected to process automation systems. In addition to the standard version for safe
area applications, we also offers Ex certified ultrasonic transmitter and sensor modifications for permanent installation in
hazardous areas.
Specifications as:
Dimension: 185*135*85mm (7.5"*5.5"*3.5")
Working power supply: AC85~265V, 50/60Hz,
DC8~36V
Accuracy: ±1~3%FS
Flow range: 0.03~7m/s (0.01~23ft/s)
Measuring period: 500ms
Display: 10x2 digits
Operation: 2*8 keypad
Ambient temperature: -25°C~75°C (-13°F~167°C)
Cable inlet: 1/2"NPT
Signal output: 1 way isolated RS485
1 way 4-20mA
1 way OCT
Signal input: 3 way 4-20mA
2 way Pt100 resistor
Communication protocol: Modbus protocol,
FUJI extension protocol
Installation: External application installation
Protection: IP65
Ex-proof: Exd II BT4
Product Catalog
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Optional Transducers
Plug-in type
Specification Standard Plug-in type Lengthened Plug-in type
Application pipe diameter larger than DN80mm (3")
Material ball valve and probe: stainless steel 316L, ball valve base: carbon steel
Frequency 1MHz
Installation method Z method
Application temperature -40~160°C (-40°F~320°F)
Application pipe material Carbon steel, stainless steel, cast iron, copper, PVC, aluminum, glass fiber, concrete,
etc.
Cut-out hole size Φ18
Pressure 1.6MPa (16bar) [ <0.6MPa (6bar) when installing]
Protection IP68
Installation space >550mm (22") >700mm (28")
Length 186mm (7.3") 330mm (13")
Medium single, uniform and stable liquid which can transmit ultrasonic
Medium turbidity <20000ppm
Cables EMI shield, up to 300m (984ft)
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Clamp-on type
Technical parameters C-S1 C-M1 C-L1 C-S1H C-M1H C-L1H
Applicable pipe
diameter (DN)
15~100
(0.5"~4")
50~700
(2"~28")
300~6000
(12"~236")
15~100
(0.5"~4")
50~700
(2"~28")
300~6000
(12"~236")
Material Aluminum alloy PES (Polyether Sulfone)
Working frequency 1 MHZ
Installation method V (N、W)
method
V、Z
method Z method
V (N、W)
method
V、Z
method
Z method
Calibration Pairing & Calibrating for the complete machine
Magnetism Yes N/A
Applicable temperature -40~90 °C (-40°F~194°F) -40~160 °C (-40°F~320°F)
Protection grade IP68
Dimensions (mm) 45×30×30 60×45×45 80×70×55 90×85×24 90×82×29 90×85×29
Weight (gram) 75 250 400 94 300 500
Media type Water, seawater, sewage, alcohol, various oils and other single, uniform and stable liquid
that can transmit ultrasonic wave
Medium turbidity <20000ppm with low bubble content
Applicable pipes Uniform and compact pipes made of carbon steel, stainless steel, cast iron, copper, PVC,
aluminum, glass fiber reinforced plastics, and lining is permitted.
Pipe lining material Epoxy asphalt, rubber, mortar, polypropylene, polystyrene, bakelite,
polytetrafluoroethylene, etc.
Signal cable Standard configuration: 5m*2 (16.4ft×2), lengthened as required.
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Tube type unit: mm
Pipe size
(DN mm)
Length
(L)
Outer
diameter
of Flange
(D)
Distance
between bolt
hole center
(D1)
Diameter of
sealed surface
(D2)
Thickness of
sealed surface
(F)
Diameter of the
hole * quantity
(Ȼ)
Thickness
of flange
(C)
2.5MPa
15 320 95 65 46 2 14*4 14
20 360 105 75 56 2 14*4 16
25 390 115 85 65 3 14*4 16
32 450 140 100 76 3 18*4 18
40 500 150 110 84 3 18*4 18
1.6MPa
50 200 165 125 99 3 18*4 20
65 200 185 145 118 3 18*4 20
80 225 200 160 132 3 18*8 20
100 250 220 180 156 3 18*8 22
125 250 250 210 184 3 18*8 22
150 300 285 240 211 3 22*8 24
200 350 340 295 266 3 22*12 24
250 450 405 355 319 3 26*12 26
300 500 460 410 370 4 26*12 28
350 550 520 470 429 4 26*12 30
400 600 580 525 480 4 26*16 32
450 700 640 585 548 4 30*20 34
1.0MPa
500 800 670 620 585 4 25*20 32
600 1000 780 725 685 5 30*20 36
0.6MPa
700 1100 860 810 775 5 24*25 32
800 1200 975 920 880 5 24*30 32
900 1300 1075 1020 980 5 24*30 34
1000 1400 1175 1120 1080 5 28*30 36
Product Catalog
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2. MHC-3000G
The MHC-3000G integrated ultrasonic flow meter can be successfully applied on a wide range of metering applications.
Pipe size ranges from 15 to 1000mm (1/2" to 40") and transducers working temperature can be up to 160°C (320°F). A
variety of liquid application can be accommodated: ultrapure liquids, potable water, chemicals, reclaimed water, cooling
water, river water, plant effluent, alcohol, etc. For more specific requirements, please consult the factory of assistance.
Specifications as:
Working power supply: DC24V / Battery
Accuracy: ±0.5%FS
Max. flow velocity: 7m/s (23ft/s)
Measuring period: 500ms
Display: 10x2 digits
Operation: 4 touch-key press
Ambient temperature: -25°C~75°C (-13°F~167°C)
Signal output: 1 way isolated RS485
1 way 4-20mA
Communication protocol: Modbus protocol,
FUJI extension protocol
Installation: Flange / thread
Protection: Sensor IP 68, mainframes IP 65
Cable inlet: 1/2”NPT
Transducers are same with former page Tube type in page 5.
For connected flanges, they are customized according to user’s requirement.
Product Catalog
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3. MHC-3000H & MHC-3000P
Both two models are portable with clamp-on transducers. The meter utilizes two non-contacting and clamp-on type
transducers that function as both ultrasonic transmitters and receivers. The transducers are clamped on the outside of a
closed pipe at a specific distance from each other. The flow meter operates by alternately transmitting and receiving a
frequency modulated burst of sound energy between the two transducers and measuring the time interval that it takes for
sound to travel between the two transducers. The difference in the time interval measured is directly related to the
velocity of the liquid in the pipe.
The meter offers a heat quantity measurement function that turns the instrument into a portable energy meter. When
equipped with this feature, the flow meter incorporates measured flow and temperature values delivered by two PT100
sensors into heat flow and heat quantity. This is valuable information to assess the efficiency of heat exchangers and
HVAC systems.
Different with MHC-3000H, the MHC-3000P is equipped with a built-in thermal printer which can print out the
measuring results. (Note that this printing function is conflict with the SD card. That means when data is printed out, it
won’t be recorded in SD card.)
Specifications as:
Dimension: 220*120*92mm (8.7"*4.7"*3.6") (MHC-3000H)
220*125*92mm (8.7"*4.9"*3.6") (MHC-3000P)
Power requirements: built-in 24V Ni-MH battery (1900mAh) provides 15 hrs of continuous operation,
charging: 220V AC 56/60 Hz (adapter supported)
Velocity range: 0.03-7m/s (0.01~23ft/s)
Inputs/Outputs: RS485, Heat Flow (MHC-3000H)
4-20mA / OCT / RS485, Heat Flow (MHC-3000P)
Display: 2 line characters display instantaneous and accumulative flow, velocity and signal status
Units: liters, m³, US gallon, UK gallon, s, m, h, d, l/s, m³/h, etc.
Ambient conditions: -20 °C to +75 °C, 0 to 85% relative humidity (-4°F~167°C)
Accuracy: ±1-3%FS
Repeatability: ±0.2%
SD card: Supported, at least 2GB
Printer: Thermo sensitive (MHC-3000P only)
Product Catalog
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Optional Transducers
Technical
parameters N-S1 N-M1 N-L1 N-S1H N-M1H N-L1H N-HS N-HM
Applicable pipe
(mm)
15~100
(0.5"~4")
50~700
(2"~28")
300~6000
(12"~236")
15~100
(0.5"~4")
50~700
(2"~28")
300~6000
(12"~236")
15~100
(0.5"~4")
50~700
(2"~28")
Material Aluminum alloy PES (Polyether Sulfone)
Working
frequency 1 MHZ
Installation
method V (N、W) V、Z Z V (N、W) V、Z Z V (N、W) V、Z
Calibration Pairing & Calibrating for the complete machine
Magnetism Yes N/A Yes
Applicable
temperature -40~90 °C (-40°F~194°F) -40~160 °C (-40°F~320°F)
Protection IP68
Media type Water, seawater, sewage, alcohol, various oils and other single, uniform and stable liquid that can
transmit ultrasonic wave
Medium
turbidity <20000ppm with low bubble content
Applicable pipes Uniform and compact pipes made of carbon steel, stainless steel, cast iron, copper, PVC, aluminum,
glass fiber reinforced plastics, and lining is permitted.
Pipe lining
material Epoxy asphalt, rubber, mortar, polypropylene, polystyrene, bakelite, polytetrafluoroethylene etc.
Signal cable Standard configuration: 5mX2
Product Catalog
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Optional Heat Measurement Function
The wall mount ultrasonic flow meter with optional heat flow module installed is designed to measure the rate and
quantity of heat delivered to a given building, area or heat exchanger. The meter measures the volumetric flow rate of the
heat exchanger liquid (water, water/glycol mixture, brine, etc.), the high temperature at the inlet pipe and the low
temperature at the outlet pipe. Heat delivery is calculated by the following equation.
Rate of heat delivery = Q*(Tin – Tout)*C
Where
Q = volumetric flow rate
Tin = high temperature at the inlet
Tout = low temperature at the outlet
C = specific heat of the liquid
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4. Ordering Information
Honma reserves the right to alter specifications without notice.
Model Description
MHC-3000 transmit time ultrasonic flow meter
Code Heat measurement function
T with PT100 resistor
— no mark if unnecessary
Code Meter type
B wall mount type
S panel mount type
G integrated inline type
H handheld type
P portable type
Code Transducer usage
C for wall mount and panel type
N for handheld and portable type
Code Transducer type
S1 clamp on transducer for pipe 15-100mm
M1 clamp on transducer for pipe 50-700mm
L1 clamp on transducer for pipe 300-6000mm
P1 standard insertion transducer
P2 lengthened insertion transducer
xx inline sensor diameter, write the figure (mm)
Code (MHC-3000B & MHC-3000P only)
HS bracket transducer for pipe 15-100mm
HM bracket transducer for pipe 50-700mm
Code Transducer working temperature
H up to 160°C
— normal to 90°C
Code Outputs (MHC-3000B only)
485 RS485
—
Code Cable length
A 5 meters
xx customized, write the figure (meter)
Dalian Honma Instrument Technology Co., Ltd
Headquarter:
No.111, Beihai Industrial Park, Ganjingzi District,
Dalian, Liaoning, 116085, China
Tel: 0086-411-8711 2351
Fax: 0086-411-8420 4069
Website: www.dlhmyb.com
Shanghai Sales Office:
825# Ting'an Rd, Pudong Disctrict, Shanghai,
200137, China