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iES-NB series IoT gas meter is a prepayment gas metering device based on NB-IoT IoT special network, which is based on membrane gas meter, equipped with ......
Product overview
iES-NB series IoT gas meter is a prepayment gas metering device based on NB-IoT IoT special network, which is based on membrane gas meter, equipped with IoT controller and external motor valve. It is applicable to all types of industrial and commercial users.
Product structure
The product is mainly composed of three parts: base meter, IoT controller and motor valve. There are two kinds of base meter gas inlet and outlet pipe connection modes: threading and flanging.
Functional characteristics
u Use dedicated IoT cards for data communication via NB-IoT (narrowband Internet of things).
u Three working modes: timed upload, manual upload and abnormal event upload. The meter also features a staggering peak mechanism.
u Valve control has both control authority and and non-control authority.
u On-line parameter configuration function and local infrared wireless communication interface.
u The meter supports recording of daily gas consumption and abnormal events.
u Abnormality alarm management functions, including gas abnormity alarm, electric quantity abnormity alarm and communication abnormity alarm.
u Power supply by 4 AA alkaline batteries and built-in clock lithium battery.
u Status information such as accumulated gas volume, remaining amount, unit gas price, valve status and battery level are available at the meter end;
u Support batching gas meter hardware program update via a remote online form.
u Mobile alarm function. When the meter is maliciously removed or damaged, the valve will close and alarm.
u With emergency valve opening function.
Key Technical Indexes
CCTV project | Unit | Technical parameter | |||||||
Model | iES-NB-G6 | iES-NB-G10 | iES-NB-G16 | iES-NB-G25 | iES-NB-G40 | ||||
Nominal flow | m³/h | 6 | 10 | 16 | 25 | 40 | |||
Maximum flow rate（qmax） | m³/h | 10 | 16 | 25 | 40 | 65 | |||
Minimum flow rate （qmin) | m³/h | 0.06 | 0.10 | 0.16 | 0.25 | 0.40 | |||
Revolution volume | dm³ | 4 | 10 | 10 | 20 | 20 | |||
Pressure loss | Pa | ≦250 | ≦375 | ≦375 | ≦375 | ≦375 | |||
Initial flow | dm³/h | ≦5 | ≦11.5 | ≦11.5 | ≦14 | ≦14 | |||
Maximum permissible error | Qmin≦Q<Qt | ％ | ±3 | ||||||
Qt≦Q≦Qmax | ％ | ±1.5 | |||||||
计量稳定性（Qt~Qmax) Measurement stability （Qt~Qmax) | ％ | ≦0.6 | |||||||
最大工作压力 Maximum working pressure | KPa | 15 | |||||||
供电方式 Power supply mode | Four No. 5 alkaline dry battery | ||||||||
静态工作电流 Static working current | ≤15 μA | ||||||||
Communication mode | NB-IoT special network | ||||||||
Maximum cumulative reading | m³ | 99999 | 999999 | ||||||
Meter connector thread | M42×2 | M64×2 | M80×3 | ||||||
Meter connector center-to-center distance | mm | 250 | 280 | 320 | |||||
Meter connector minimum diameter | mm | φ32 | φ50 | φ69 | |||||
Adjustable movable joint connection thread | R1 | R1½ | R2 | ||||||
