Service Hotline：
+86-371-22321060
+86-371-22321060
| Items | Parameters | |
| Nominal size | DN15-DN40 | |
| Material |
Measuring tube: copper; can be customized stainless steel 304, stainless steel 316 | |
| Executive standard | ISO4064-2014; GB/T32224-2020 | |
| Measuring range |
Temperature range(℃) | 4-90; |
| Temperature difference range(K) | 0-85(calculate temperature difference0.2K) | |
| Min. pairing temperature error(℃) | ±0. 1 | |
| Max. allowable working pressure MPa | 1.6MPa | |
| Accuracy class | 2 | |
| Temperature resistances type | PT1000， DIN/IEC751B | |
| Protection level | IP68 | |
| Power supply |
3.6V lithium battery power supply, one can work continuously for more than 6 years | |
| DC8-24V (Tell us when order) | ||
| AC220V， 50HZ (Optional power adapter，tell us when order) | ||
| Work environment | Class A/Class B/Class C/Class D | |
| Power consumption | Standard condition < 30uA, working 20 years above constantly | |
| Communication |
Optical interface | Baud rate 9600bps, 4800bps, 2400bps, 600bps, 300bps optional, Default is 9600bps; using GB/T 26831 protocol |
| RS485/M-BUS | Baud rate 9600bps, 4800bps, 2400bps, 600bps, 300bps optional, the default is 9600bps, transmission distance ≤ 150m GB/T26831 protocol, CJ/T 188 protocol, Modbus RTU protocol optional, automatic identification of communication protocols. | |
| Wireless communication |
NB-Iot | |
| 4G Network communication | ||
| Spot display | Screen with two rows: 9digital accumulated flow display,6 digital instantaneous flow display, as well as supply and return water temperature and temperature difference. Accumulate effective run time. | |
| Display resolution | Heat 0. 1kw h, cumulative flow 0.001m³; temperature 0.01℃; temperature difference 0.01K | |
| Storage temperature(℃) | -25~55℃ | |
| Data storage | Adopts to ferroelectric storage parameters, recording accumulated flow of 32moths and 31days automatically | |
| Pressure loss | △ P40; | |
| Temperature sensor signal cable length (m) | Default 5 meters (other lengths customized) | |
| Water meter installation position | Water-supply (tell us if for water-return installation) | |
