China OEM Water Meter Pricelist –WG-N NB-IoT Wireless Smart Gas Meter – HolleyDetail:
قياسي
> 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℃)
المواد
> 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.
ADVANTAGES
> 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).
SPECIFICATION
البند نموذج | G1.6 | G2.5 | G4 |
| Nominal Flow Rate | 1.6 م³/ساعة | 2.5 م³/ساعة | 4 م³/ساعة |
| Max. Flow Rate | 2.5 م³/ساعة | 4 م³/ساعة | 6 م³/ساعة |
| Min. Flow Rate | 0.016 م³/ساعة | 0.025 م³/ساعة | 0.040 م³/ساعة |
| Total Pressure Lose | ≥200 باسكال | ||
| Operation Pressure Range | 0.5～50kPa | ||
| Cyclic Volume | 1.2 ديسيمتر مكعب | ||
| Permissible Error | Qmin≤Q<0.1Qmax | ±3% | |
0.1Qmax≤Q≤Qmax | ±1.5% | ||
| Min. Recording Reading | 0.2 ديسيمتر مكعب | ||
| Max. Recording Reading | 99999.999m³ | ||
| Operation AmbientTemperature | -10～+55درجه مئوية | ||
| Storage Temperature | -20～+60درجه مئوية | ||
| Service Life | More than10 years | ||
| الليثيومBattery Life | 10 سنوات | ||
| Connection Thread | M30 or Customized | ||
| خارج جase | الصلب/الألومنيوم | ||
| IP Protection | إب 65 | ||
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