The temperature range is 4~95℃.
Measure the heat energy/ Measure the cooling energy
Measurement unit: Kwh, Gcal, GJ, MWh
Communication Interface choice:
1. M-BUS
2. RS-485
3. Pulse output
4. LoRa/LoRaWAN
5. NB-IoT
Frequency: LoRa/ LoRaWAN 865MHz, 902MHz, 868MHz, 915MHz, Customized Frequency Requirement
BTU Meter & Energy Measurement
BTU meters are engineered for precision measurement across diverse systems such as：
• Industrial & Commercial (I&C) applications etc.
Technical Specifications:
Diameter （mm） qn （m³/h） qmin（m³/h） qmax （m³/h） Length(mm)DN50 15 0.6 30 200 DN65 25 1 50 200 DN80 40 1.6 80 225 DN100 60 2.4 120 250 DN125 100 4 200 250 DN150 150 6 300 300 DN200 250 10 500 350 DN250 400 16 800 450 DN300 600 24 1200 500 DN350 750 30 1500 500 DN400 1000 40 2000 500 DN450 1200 48 2400 500 DN500 1500 60 3000 500 Range ratio R25 Measurement Accuracy EN1434、CJ128-2007 Class2 Connection Flange Pressure Loss ≦20KPa Pressure Level ≦1.6MPa Temperature sensor 3 m standard two lines PT1000 Temperature Sensor （cable length could be changed） Data Storage Continuous store of 38 months record Power-off Protection After power-off, meter could save all the record of before flow rate and the corresponding time, after power back, it recovery measure function automatically, and ensure the time continuation Communication mode Wired: Mbus, Modbus, RS485, Pulse Output Wireless: LoRaWAN, NB-IoT Power Supply ER18505 Lithium battery (waterproof) Protection Class IP68 Environmental Class Class B Temperature Range （4～95）℃ Temperature Difference (3～70)K Installation Way Inflow or Return flow installation（Default is Inflow installation, for return flow need to indicate when ordering） Battery Life 10 years Display LCD display Anti-magnetic Disturbance When the intensity of magnetic field interference is not more than 100 ka/m, should not affect water meter measurement and remote transmission characteristics
Features:
1. Lithium battery life: 10 years
2. Archive: 38 Month data historical（ M-BUS, RS-485, Pulse output )
3. Installation choice: Water supply pipeline or Water return pipeline
4. Horizontal or Vertical installation
5. Accuracy: Class 2, meets EN1434
6. Measuring range (q s/q i =50:1)
7. Temperature sensor: PT 1000
8. Environment standard Class: B
9. Min. temperature difference: 3℃
10. Water pressure: ≤1.6Mpa
