Product Data Sheet

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The wall mount ultrasonic flow meter 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.

Wall Mount Type Ultrasonic Flow Meter

MHC-3000B

Application

--agriculture and irrigation

--cooling and heating fluid measurements

--water and wastewater measurements

--monitoring and controlling of HVAC systems

--contactless product recognition

--automated process control

Highlights

--heat measurement function optional

--various units to display

--great pipe range from 15 to 6000mm (1/2"~236")

--temperature range from -40 to 160℃ (-40°F~320°F)

--self-diagnostic function

--AC or DC supply option

--Easy to install, clamp-on design

--Bi-directional flow measurement

The meter offers a heat quantity measurement function

that turns the instrument into an 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.

The wall mount ultrasonic flow meter can be successfully

applied on a wide range of metering applications. Pipe

size ranges from 15 to 6000mm (1/2" to 236") 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.

Product Data Sheet

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MHC-3000H Specifications

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 (2 times per second, and 128 groups of data collected at each cycle )

Display 20 digits, 2 lines characters displayed on the same screen

Operation 2*8 keyboard

Ambient temperature -25°C~75°C (-13°F~167°C)

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 IP 65

Ex-proof Exd II BT 4

Cable inlet 1/2”NPT

Product Data Sheet

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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)

Product Data Sheet

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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.

Product Data Sheet

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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 25*24 32

800 1200 975 920 880 5 30*24 32

900 1300 1075 1020 980 5 30*24 34

1000 1400 1175 1120 1080 5 30*28 36

Product Data Sheet

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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

Honma reserves the right to alter specifications without notice.

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