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Ultrasonic Flow Module

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Name:Ultrasonic Flow Module/RTU

General Introduction:
LRF-2000M, the ultrasonic flow module, is best choice for system integration or network measurement because of its small volume, light weight, easy operation, power function and lowest cost.
Powerful Functions 
Current output: 4-20mA, one channel, can be used for flow/heat transmitter; 
OCT output: two channel, can be used for flow / heat switch; 
Current input: 4-20mA, three channel, can be used for data collector; 
Tri-wire resistance signal input (PT100): two channel, can be used for calorimeter.
Far transmission distance 
Connect flow/heat module and secondary meter through RS-485 interface, transmission distance up to 1000m . 
Solve the problems of high cost of special cable, poor anti-interference, short transmission distance etc.
Wide measuring range 
Several types transducer for selection, pipe size from DN 32mm to DN 6000mm 
High Accuracy measuring 
Accuracy: ±1%, linearity: 0.5%, repeatability: 0.2%
Optional transducer :
Types Picture Spec. Model Measurement Range Liquid Temperature Accuracy
Clamp on Small Size TS-2 DN32~DN100 -30~90℃



Medium Size TM-1 DN50~DN700 -30~90℃
Large Size TL-1 DN300~DN6000 -30~90℃
Clamp on
Small Size TS-2-HT DN32~DN100 -30~160℃
Medium Size TM-1-HT DN300~DN1000 -30~160℃
Insertion Standard TC-1 DN80~DN6000 -30~160℃
Lengthen TLC-2 DN80~DN6000 -30~160℃
Prover Section Prover Section G1 DN15 -1000mm 
(see appendix 2)
-30~160℃ Flow±0.5%

Ultrasonic Flow Module/RTU
Ultrasonic Flow Module/ RTU
Ultrasonic Flow Module / RTU

Measuring Diagram of flowmeter:

Clamp on:
Ultrasonic Flow  Module/RTU
Ultrasonic  Flow Module/RTU
Ultrasonic  Flow  Module/RTU
Item Performance and Parameter
Convertor Principle transit-time ultrasonic flowmeter
Accuracy Flow: over 1%-2%(battery-powered supply over ±2% ),Heat: over ±2%,Repeatability: over 0.2%
Operation 4 keyboards operation
Signal Output 1 way 4~ 20mA output, electric resistance 0~ 1K,accuracy0. 1%
1 way OCT pulse output( Pulse width 6 ~ 1 0 0 0 ms,default is 2 0 0 ms)
1 way Relay output
3 way 4~ 20mA input, accuracy 0. 1%,acquisition signal such as temperature, press and liquid level
Signal Input Connect the temperature transducer Pt100, can finish the heat/energy measurement
Data interface Insulate RS485 serial interface, upgrade the flew meter software by computer, support the MODBUS, METER-BUS etc.
Special Cable Twisted-pair cable, generally, the length under 50 meters;Select the RS485 communication. The transmission distance can over 1000m.
Pipe Condition Pipe Material Steel, Stainless steel, Cast iron, Copper, Cement pipe, PVC, Aluminum, Glass steel product, liner is allowed.
Pipe Diameter 32mm-6000mm
Straight length pipe Transducer installation should be satisfied: upstream10D, downstream 5D, 30D from the pump.
Measuring Medium Type of Liquid Water (hot water, chilled water, city water, sea water, waste water, etc.);  Sewage with small particle content; Oil (crude oil, lubricating oil, diesel oil, fuel oil, etc.);  Chemicals (alcohol, acids, etc.); Plant effluent; Beverage, liquid food; Ultra-pure liquids; Solvents and other liquids
Temperature Standard Transducer: -30--90℃; High-temperature transducer: -30--140℃
Turbidity No more than 10000ppm and less bubble
Flow rate 0~±12 m/s
Working Environment Temperature Main Unit: -20--60℃
Humidity Main Unit: 85% RH; Flow Transducer: Ip67
Power Supply DC8~36V or AC10~30V
Consumption 1.5W

●LRF-2000M   Product Selection Manual(Click to view)