1. DN15-DN20, R250
2. Communication: M-BUS, RS-485, Pulse Output, LoRa, LoRaWAN, NB-IoT
3. Frequency: LoRa/ LoRaWAN 865MHz, 902MHz, 868MHz, 915MHz, Customized Frequency Requirement
4. Valve control: Valve close/ open
5. Detection functions
6. Unit: L/ m3/ Gal (Optional)
TECHNICAL SPECIFICATION:
Meter Type Ultrasonic Water Meter Nominal Diameter (mm) DN15~DN20 Q3/Q1 R250 Measured medium Water Accuracy class Class 2 Frequency 868MHZ, 915MHZ Water pressure class 1.6MAP ( 16 bar) Pressure-loss class Δp40 Temperature class T30,T50 Installation position H/V The installation sensitivity class U5/D3 Electromagnetic class E1 Environmental class B Key-press Touch control technology Types of Indicating device LCD:8-digits, 0~99999.999m³ Menu Contents Instantaneous flow (m3/h), cumulative flow (m3), screen detection, table address, cumulative working time (h), date (year/month/day), caliber, software version Communication Interface M-BUS, RS485, Pulse output, LoRa, LoRaWAN, NB-IoT Power Source Lithium battery ER26500(replaceable) Battery Voltage &Capacity 3.6V , 8500mAh Life span 10 years. IP code IP68 Storage Temperature -25℃~+55℃ Cable length 1.0 m
FLOW RATE:
Parameter Unit Data value Nominal Diameter DN15 DN20 Start flow rate m3/h 0.002 0.002 Qmin(Q1) 0.010 0.016 QTransitional(Q2) 0.016 0.0256 Qn/permanent(Q3) 2.5 4 Qoverload(Q4) 3.125 5 Range ratio=Q3/Q1 250 Temperature T30,T50 Battery life Year >10
DIMENSION
Nominal Diameter( mm ) DN15 DN20 Thread G3/4B G1B L(mm) 165 195 H(mm) 98.2 98.2 W(mm) 102 102
WORKINGCONDITION:
Watertemperature: 0~50℃
Waterpressure: ≤16 Bar
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