Water Meter Nextron DN20 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 Water Meter Nextron DN15
- 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.
- Service Life : No mechanical wear of moving parts in meters, which can be used stably and reliably for a long time.
- Communications : NB-IOT, LoRa, LoRaWAN, M-Bus, RS485, Pulst Output.
- Anti Electric and anti magnetic : Strong anti-static and anti-magnetic interference ability
- Empty Pipe Alarm : Equipped with an empty pipe alarm mechanism, which can be used as an abnormal disassembly alarm after a long period of normal running w .
Function Description
- Main Control Chip : Low power consumption micro controller 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 lasts for 15 days and the time is not 0 which can be changed )
– Water pipe burst alarm ( principle the flow rate is greater than a certain value, value to be determined )
– Divided into normal operation mode and verification mode.
– In the verification mode, the last flow will be reset automatically after each re verification.
– The detection time difference is twice within 1s ( each low power trigger will be executed in the main cycle )
– Time difference has 10 times of head and tail removal average algorithm
– The flow coefficient is compensated by the interpolation algorithm for flow and velocity.
– Calculate the flow value once in 2s. - Water mastering data history memory local ( Accuracy 1L ) For
– The latest 90 days, the metering data is stored every hour
– The latest 180 days the metering data is stored every day.
– For the most recent year, the metering data is stored monthly. - Power Supply : Last application board power supply (3.6V)
Technical Data Smart Water Meter Nextron DN20 :
| Diameter | DN20 |
| Minimum Flow | 0.016 |
| Boundary Flow | 4.000 |
| Maximum Flow | 5 |
| Range Ratio | R250 |
| Accuracy Class | B |
| Work Pressure | <= 1.6 Mpa |
| Protection Class | IP65/IP68 |
| Working Temperature | 5-550C |
| Communication Method | Lorawan/NB/GPRS/RS485 |
| Power Supply | 3.6V |
