Small Cold Domestic LoRa Ultrasonic Water Meter
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Product Description
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Adopt advanced ultrasonic measurement technology to accurately measure, display and store the water flow through the pipeline;
Advanced technologies such as segmental calibration and automatic potential tracking are adopted;
It has the advantages of high measurement accuracy, wide range ratio, strong reliability, and long life;
The waterproof grade reaches IP68;
High measurement accuracy, simple construction, and simple operation can be copied and controlled by remote transmission, which is conducive to modern management;
Support ladder water price to facilitate water price adjustment;
Various query statistics and data analysis functions to facilitate data collection and statistics;
Fully waterproof design, suitable for outdoor ground, underground surface wells, and other occasions. -
Deliver Condition: -
1. Size: DN15-DN40
2. Body: Brass
3. Max work pressure: PN16.
4. Protection class: IP68
5. Communication methods: Lora, NB-IoT, GPRS, M-BUS, RS485
6. Battery life:10 years(DN15~DN40)/6-8years(DN50~DN500)
7. R: R250, R400
8. Water temperature: T30/T90
9. Standards: ISO4064. -
Features
Low power dissipation: current <8 μA when static
Heat meter Measure accuracy: II
Working temperature range:4~95ºC
Minimum resolution ratio of temperature:0.01ºC
Two temperature sensors' matching error: <0.05ºC
Temperature range: 0~90ºC
Working pressure:1.6Mpa
Minimum resolution ratio of heating :0.1KWh(normal mode), 0.001KWh (testing mode)
Minimum resolution ratio of flux: 0.01 m³(normal mode),0.00001m³(testing mode)
Accumulative working temperature unit: h(hour)
Working environment Temperature:-15~55ºC
Flux sensor: ultrasonic sensor -
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Nominal diameter(mm) |
15 |
20 |
25 |
32 |
40 |
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Length L(mm) |
165 |
195 |
225 |
180 |
200 |
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Length L1(mm) |
260 |
300 |
346 |
305 |
330 |
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Overload flow Q4(m³/h) |
3.125 |
5 |
7.87 |
12.5 |
20 |
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Permanent flow Q3(m³/h) |
2.5 |
4 |
6.3 |
10 |
16 |
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Transitional flow Q2 (m³/h) |
0.02 |
0.032 |
0.05 |
0.08 |
0.128 |
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Minimum flowQ1(m³/h) |
0.0125 |
0.02 |
0.032 |
0.05 |
0.08 |
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Start-up flow(m³/h) |
0.005 |
0.005 |
0.008 |
0.01 |
0.015 |
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Communication |
LoRaWAN |
NB-IOT |
GPRS |
WIFI |
M-BUS |
RS485 |
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External transmission |
LoRaWAN |
Wireless Communication (work at TCP/UDP) |
RS485 4wire |
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Antenna |
Soft Antenna |
Spring Antenna |
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Agreement |
Big-end mode HEX |
Modbus RTU |
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Communication |
Low frequency High frequency |
NB-IOT |
GPRS |
2.4G |
M-BUS |
RS485 |
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Pulse singal |
/ |
/ |
3-wire GNDS1 S2 |
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Screen display |
LCD button switch screen |
LCD magnet switch screen |
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Communication distance |
2-3km |
2-3km |
2-3km |
＜10m |
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/ |
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Wire length /line order |
/ |
/ |
/ |
/ |
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Wire length 1m Line order：4wire |
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