SMART WATER METER DN20 NEXTRON Ultrasonic water meter adopts the principle of ultrasonic wave, which is a kind of water meter that can further calculate the flow rate of water by detecting the time difference caused by the change of speed when the ultrasonic sound beam propagates downstream and counter currently in the WATER , analyzes and processes the flow rate of water
PERFORMANCE CHARACTERISTICS SMART WATER METER DN20 :
- ACCURACY : Small starting flow, high range ratio, up to R250.
- MICRO POWER CONSUMPTION : Adopt micro-power consumption design to minimize the comprehensive power consumption of the water meter.
- COMMU NICATIONS : NB-LOT, LoRa, LoRaWAN, M-BUS, RS485, Pulst output.
- ANTI-ELECTRIC and ANTI-MAGNETIC : Strong anti-static and anti-magnetic interference ability.
| DIAMETER | DN20 |
| Minimum flow | 0.016 |
| Boundary flow | 4.000 |
| Maximum flow | 5 |
| Range ratio | R250 |
| Accuracy Class | B |
| Work Pressure | S 1.6 Mpa |
| Protection Class | IP65/IP68 |
| Working temperature | 5-550C |
| Communication Method | Lorawan/NB/GPRS/RS485 |
| Power Supply | 3.6V |
FUNCTION DESCRIPTION :
- Main control chip
- Low power consumption microcontroller HC3L130
- Basic frequency 4MHz
- Ultrasonic Metering Function
- Calculate the forward and reverse flow
- Velocity of flow calculate
- Installation direction detection
- Empty pipe or sensor fault alarm
- Leakage alarm ( principle :the flow rate and the time not which can be changed )
- Divided into normal operation mode and mode
- In the verification mode, the flow will be reset automatically after each re verification
- automatically after each re verification
- Time difference has 10 times of head and removal average algorithm,
- The flow coefficient iscompensated by the insterpolation algorithm for flow and velocity.
- Calculate the flow value once in 2s
- POWER SUPPLY
- Last application board power supply (3.6V)