Product Introduction
Sulfur hexafluoride is detected using ultrasonic principles, featuring rapid and sensitive response, wide measurement range, and long lifespan.
It also has the function of monitoring oxygen, with a range of 0-30%VOL, high measurement accuracy, up to within ±3%FS, and repeatability up to within 1%.
Optional temperature and humidity, precise measurement of environmental temperature and humidity changes.
The product adopts a 485 communication interface, standard ModBus-RTU communication protocol, communication address and baud rate are configurable, with a maximum communication distance of 2000m.
10-30V DC wide voltage power supply.
Reasonable structure, avoiding long-term accumulation of SF6 inside the housing.
| Item | Technical Specifications |
| Power consumption | 1.5W |
| SF6 resolution | 10ppm |
| SF6 maximum permissible error | ±10% （@1000ppm,60%RH,25℃） |
| SF6 range | 0-2000ppm |
| SF6 zero drift | ±3ppm |
| SF6 stability | ≤2% signal value/month |
| SF6 response time | ≤5min |
| SF6 warm-up time | ≥30min |
| SF6 repeatability | ≤5% |
| O2 resolution | 0. 1%VOL |
| O2 accuracy | ±3%FS |
| O2 range | 0~30%VOL |
| O2 service life | 2 years (default), 5 years, 10 years optional |
| O2 repeatability | ≤1% |
| O2 warm-up time | ≥5min |
| O2 response time | ≤10s |
| O2 stability | ≤5% signal value/year |
| Temperature measurement range | -40℃~+80℃ |
| Temperature Accuracy | ±0.5℃ （@25℃） |
| Humidity measurement range | 0~99%RH |
| Humidity accuracy | ±3%RH （@ 60%RH,25℃） |
| Pressure range | 86~ 106kPa |
| 工作温度 | - 10~40℃ |
| Working humidity | ≤98%RH non-condensing |
Main Application Areas
- Power Industry — SF6 leak detection in gas-insulated switchgear and circuit breakers to ensure electrical insulation and arc-extinguishing performance.
- Substation Monitoring — Continuous monitoring of SF6 gas purity, oxygen, temperature, and humidity in high-voltage substations.
- Industrial Safety — Preventing gas leaks in enclosed spaces to protect personnel from oxygen deficiency and SF6 exposure.
- Environmental Monitoring — Tracking SF6 emissions to comply with environmental regulations and reduce greenhouse gas impact.
Keywords：SF6 transmitter, ultrasonic gas sensor, SF6 leak detection, oxygen temperature humidity transmitter, SF6 gas monitor, industrial gas sensor, SF6 purity sensor, SF6 dew point transmitter
