The R400/R250 M-Bus/ RS485/ Pulse Output/ Lorawan/ NB-IoT Ultrasonic Water Meter is a new type of electronic water meter for flow measurement based on the principle of ultrasonic time difference. It is used to measure the instantaneous flow and cumulative total amount of water flowing through the tap water pipeline. The ultrasonic water meter has remote function, and the remote reading of data can be realized through the system platform.
Product Characteristics
1. Accuracy: R400/R250
2. Sizes: DN15-DN40
3. Communication: M-BUS, RS-485, Pulse output, LoRa, LoRaWAN, NB-IoT
4. Frequency: LoRa/ LoRaWAN 865MHz, 902MHz, 868MHz, 915MHz, other customized frequency requirement
5. Available for cold water (50°C)
Data Sheet
INDICATING ERROR
At low zone is ±5% from minimum flow rate (qmin) to transitional flow rate (qt) exclusive boundary
At high zone is ±2% from transitional flow rate (qt) to overload flow rate (qs)
Error Curve:
Head Loss Curve:
Dimensions And Weight
Working Conditions:
Water temperature：≤50℃ for cold water meter
Working pressure：≤1.6Mpa