The R400/R250 LoRa/LoRaWAN Residential 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, 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