China OEM Residential gas meter Company –WG-N NB-IoT Wireless Smart Gas Meter – HolleyDetail:
표준
> Comply with international standard EN1359,OIML R137 and MID2014/32/EU.
> Approved by ATEX 
II 2G Ex ib IIA T3 Gb (Ta = -20℃ to +60℃)
재료
> Housing made through die-casting of high-quality steel.
> Diaphragm made of synthetic rubber with long life and temperature resistant.
> Valve and valve seat made of advanced PF synthetic resin.
장점
> Anti-tamper proof.
> Alarm function.
> Anti-magnetic interference function.
> Automatic data reporting (passive).
> Automatic meter reading through specified frequency band.
> When network cannot communicate, point-to-point meter reading through APP.(optional)
> 60 days historical data (daily total gas usage, alarm content, battery status).
사양
품목 모델 | G1.6 | G2.5 | G4 |
| Nominal Flow Rate | 1.6m3/h | 2.5m3/h | 4m3/h |
| 최대. 유량 | 2.5m3/h | 4m3/h | 6m3/h |
| 최소 유량 | 0.016m3/h | 0.025m3/h | 0.040m3/h |
| Total Pressure Lose | 200Pa 이하 | ||
| Operation Pressure Range | 0.5~50kPa | ||
| 순환 볼륨 | 1.2dm3 | ||
| Permissible Error | Qmin≤Q<0.1Qmax | ±3% | |
0.1Qmax≤Q≤Qmax | ±1.5% | ||
| Min. Recording Reading | 0.2dm3 | ||
| Max. Recording Reading | 99999.999m³ | ||
| Operation AmbientTemperature | -10～+55℃ | ||
| Storage Temperature | -20～+60℃ | ||
| 서비스 수명 | More than10 years | ||
| 리튬B애터리라이프 | 10년 | ||
| Connection Thread | M30 or Customized | ||
| 외부 C아제 | 강철/알루미늄 | ||
| IP 보호 | IP 65 | ||
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