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Separate Fixed Calorimeter

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Name:Separate Fixed Calorimeter

General Introduction:
LRF-2000S-R is wall-mount economical ultrasonic heat/cold meter. It is comprised of wall-mount ultrasonic flow meter and a pair of temperature sensors PT100

 High Accuracy measuring 
Linearity: better than 0.5%, Repeatability: better than 0.2%, Accuracy: better than ±1%
 Wide measuring range 
Several types transducer for selection, measuring pipe size from DN32mm to DN6000mm
 High Reliability   
Adopt low voltage, multi-pulse technology to improve accuracy, useful life and reliability
 Strong Anti-interference  
Dual-balance signal differential receiver/driver circuit to avoid interference of converter,TV ower, high voltage line etc.    
 Powerful Recording Function 
Automatically record the following data:
1.The totalizer data of the last 512 days/128 months/10 years
2.The time and corresponding flow rate of the last 64 times of power on and off events 
3. The working status of the last 32 days 
 With the clamp on ultrasonic temperature transducer
Optional transducer :
Types Picture Spec. Model Measurement Range Temperature Accuracy
Clamp on waijia Small Size TS-2 DN32~DN100 -30~90℃

Better than


waijia 1 Medium Size TM-1 DN50~DN700
Clamp on Large Size TL-1 DN300~DN6000
Clamp on
Clamp on11 Small Size TS-2-HT DN32~DN100 -30~160℃
Medium Size TM-1-HT DN50~DN700
Insertion cha ru Standard TC-1 DN80~DN6000 -30~90℃

Better than


cha ru shi Lengthen TC-2 DN80~DN6000
Prover Section   Standard G1 DN15 -1000mm 
(see appendix 2)
-30C ° ∼ 90C °

Better than


Power Supply DC8-36V or AC220V
Input 3 channel 4-20mA analog input
Isolation RS-232/RS-485 output, 2 channel isolation OCT 
  output: 1 channel isolation 4-20mA output (two-wire system)
Communication Protocols
Compatible with METER-BUS, MODBUS, Fuji extended protocol and general water meter protocol

Optional Temperature Transducer:
Clamp on temperature transducer PT100 No need to cut off water, no pressure loss
Insertion temperature transducer PT100 Need to cut off water, no pressure loss

Optional Main unit:
 Wall-mount Panel-mount Explosion-proof
2000sw 2000sp fangbao
Wall mounted LRF-2000SW
Indoor or instrument box installation
Power supply:DC8~36V or AC85~264V
Panel mounted LRF-2000SS
Instrument Cabinet installation
Hole-opening dimension:156*76mm
Power supply:DC8~36V or AC85~264V
Explosin-proof LRF-2000SD
Explosin-proof  installation
Dimension :298*298*110mm
Power supply:DC 8~36V or 

Separate Fixed Calorimeter

The physical details of the plan:
Separate Fixed  Calorimeter
Installation diagram:
Structure of clamp-on measuring
Separate  Fixed Calorimeter
Structure of  insertion measuring
Separate  Fixed  Calorimeter
Structure of Prover Section measuring 
Separate   Fixed Calorimeter

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%
Display 2×20 character LCD with backlight, support the language of Chinese, English and Italy Convertor dimension:170*180*56cm
Operation Support 16 key light touch keyboard and the Simulation keyboard software
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
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 flow meter software by computer, support the MODBUS, METER-BUS etc.
Other Function Automatically remember the previous flow/energy data of 512 days,  128 months and 10 years
Automatically remember the previous flow/energy data of 512 days working condition and check it
Automatically remember the previous 32 times power on/off time and flow rate
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 DN32mm---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: -40--160℃
Turbidity No more than 10000ppm and less bubble
Flow rate 0--±12 m/s
Working Environment Temperature Main Unit: -20--60℃
Flow transducer: -40--160℃; 
Temperature transducer: according to the customer’s demands.
Humidity Main Unit: 85% RH; Flow Transducer: Ip67
Power Supply DC  24V or AC  85-264V
Power Consumption 1.5W

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