Product Description
Product description
NB-IoT non-magnetic sensor remote water meter is a water meter based on a wet multi-stream water meter, using non-magnetic sensor electromechanical conversion technology, and using NB-IoT network communication for data remote transmission. It is suitable for Domestic water metering.
Product features
- No wiring or relay equipment required;
- Adopts NB-IoT network communication for data remote transmission, featuring wide coverage, large connections, low power consumption, and low cost;
- Using new non-magnetic sensing electromechanical conversion technology, the conversion measurement accuracy can reach ±1 liter;
- The electronic module and the base meter are installed separately, with good interchangeability;
- Ultra-low power consumption design, long service life;
- IP68 waterproof design;
- Special material glass: imported nylon material, high pressure resistant, with a maximum pressure resistance of 40 kg, and is not afraid of secondary pressure; anti-freeze, the glass will not freeze and crack within minus 30°C.
Traffic parameters
| Nominal diameter DN (mm) |
Overload flow Q4 (m3/h) |
Common traffic Q3 (m3/h) |
Boundary flow Q2 (m3/h) |
Minimum flow Q1 (m3/h) |
Range ratio R(Q3/Q1) |
Accuracy
Level |
Temperature level
(℃) |
| 15 |
1.25× Q3 |
2.5 |
1 .6 × Q 1 |
Q3 ÷R |
80/ 100/ 160 |
Level 2 |
T30/T50 |
| 20 |
4 |
| 25 |
6.3 |
Maximum allowable error
A. The maximum allowable error in the low zone from including the minimum flow rate (Q1) to excluding the boundary flow rate (Q2) is ±5%;
B. The maximum allowable error in the high zone from including the boundary flow (Q2) to including the overload flow (Q4) is ±2%.
(±2% when the water temperature is ≤30°, ±3% when the water temperature is >30°)
Electronic module technical parameters
| Uplink communication method |
NB- IoT Telecommunications |
NB- IoT Mobile |
| Working voltage |
DC 3 .6 V |
DC 3 .6 V |
| Quiescent current |
< 5μA |
< 5μA |
| Communication module |
N21/N308/MN316 |
N21/N308/MN316 |
| Electromechanical conversion method |
Non-magnetic sensing |
Non-magnetic sensing |
| Electromechanical conversion accuracy |
±1 liter |
±1 liter |
| Battery life (upload once a day) |
≧6 years |
≧6 years |
