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Ultrasonic Flow Module / LRF-2000M

Ultrasonic Flow Module
  • 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.

Product Selection Manual

Features

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 15mm to DN 6000mm

High Accuracy measuring 
Accuracy: ±1%, linearity: 0.5%, repeatability: 0.2%

Optional transducer

Optional Transduers

Model

Measuring Range

Liquid Temperature

Accuracy

Clamp-on

TS-2(small size)

LRF-2000MNB1

DN32 -100mm

-30C ° ∼ 90C °

Flow±1%

Heat±2%

TM-1(medium size)

LRF-2000MNB2

DN50 -700mm

TL-1(large size)

LRF-2000MNB3

DN300 -6000mm

High-tem clamp-on

HS-2-HT(small size)

LRF-2000MNB4

DN32 -100mm

-30C ° ∼ 160C °

TM-1-HT(medium size)

LRF-2000MNB5

DN50 -700mm

Insertion

TC-1(standard)

LRF-2000MNC1

DN80 -6000mm

-30C ° ∼ 160C °

TLC-2(lengthen)

LRF-2000MNC2

Prover Section

Prover Section

LRF-2000MNG

DN15 -1000mm
(see appendix 2)

-30C ° ∼ 160C °

Flow±0.5%


Main features

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~ 1Kaccuracy0. 1%
1 way OCT pulse output( Pulse width 6 ~ 1 0 0 0 msdefault is 2 0 0 ms)
1 way Relay output
 
Signal Input
3 way 4~ 20mA input, accuracy 0. 1%acquisition signal such as temperature, press and liquid level
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
32-6000mm
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--160
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














































Measuring Diagram of flowmeter

Clamp on

Insertion

Pipe
   

























composition diagram of flow network-measuring




Product Photo