Drop-down navigation: Provide expert services with customer satisfaction, be a reliable friend for customers, and achieve common development with customers. Service Philosophy
Hotline： 400-180-9689 Qingdao iESLab Electronic Co., Ltd.(Business Center) Address: 17th Floor, Building A2-3, Hanyu Jingu, High-tech Zone, Jinan City
扫一扫添加好友
LoRa无线远传燃气表，是一款基于LoRa扩频通讯技术，以膜式燃气表为基表，加装电子控制器以及通信模组，组成的具有预付费功能的燃气计量器具。
Functional characteristics
u Complete Ad Hoc network, automatic optimized routing, automatic discovery and deletion of nodes.
u Sound mesh (MESH) structure, stable performance and high reliability.
u 10 levels of routing with a maximum support of 1024 nodes • Plug and play, automatic completion of networking process; no manual parameters setting is required on site.
u Quick networking speed and meter reading speed, and high one-time meter reading success rate
u American ADI high-performance RF chip is adopted as node module.
u Efficient circulating error detection and correction(EDAC) coding is adopted.
u Strong penetration, long distance, and more than 4 km outdoor network coverage radius.
u Give full play to the advantages of spread spectrum technology within the 470MHz - 510MHz frequency band, and combine MESH networking and power control technology to achieve a high and reliable lightweight wireless network system.
u Battery monitoring: Automatically monitor battery power, alarm and close the valve in case of low battery.
u Valve control function: Realize outdoor remote valve control, amount overdue valve closing, low voltage valve closing and power down valve closing.
u Low power consumption: 4 alkaline dry batteries work reliably more than 1 year.
u Press the button to open the valve: press the button to open the valve after valve opening authorization.
Key Technical Indexes
Product model | Unit | G1.6 | G2.5 | G4 |
Nominal flow | m³/h | 1.6 | 2.5 | 4 |
Maximum flow | m³/h | 2.5 | 4 | 6 |
Minimum flow | m³/h | 0.016 | 0.025 | 0.04 |
Level of accuracy | Class | 1.5 | ||
Limit of intrinsic error | % | Qmin≤Q＜0.1Qmax时±3 When Qmin≤Q＜0.1Qmax, ±3 0.1Qmax≤Q≤Qmax时±1.5 When 0.1Qmax≤Q≤Qmax, ±1.5 | ||
Maximum cumulative amount | m³ | 99999.999 | ||
Maximum working pressure | kPa | 15 | ||
Loss of total pressure | Pa | ≤250 | ||
Sealing | kPa | No leakage under 1.5 times of maximum working pressure | ||
Explosion proof criteria | EXib IIBT3 Gb | |||
Environment temperature | ℃ | -10～+40 | ||
Ambient humidity | %RH | ≤93%RH | ||
Medium conditions | Various types of gas, air, non-corrosive gases | |||
Power supply mode | 4 cells of AA alkaline batteries | |||
Battery life | Service life ≥ 12 months, easy to replace | |||
Sampling method | Pulse sampling | |||
Display mode | Mechanical display and liquid crystal display | |||
Valve reliability | Continuous switching times shall not be less than 10000 times | |||
Protection grade | IP65 | |||
Communication mode | LoRa | |||
Daily meter reading success rate | ≥99% | |||
One-time meter reading success rate | ≥98% | |||
Data reading accuracy | ≥99% | |||
Service life | ≥10 years | |||
