SF6 Gas Leakage Online Monitoring System
Real-time Monitoring • Voice Prompt • Fan Interlock
Measurement Range: (0-1500) ppm
Maximum Permissible Error: ±30 ppm or ±5% (display value)
Repeatability: ≤3%
Range/Zero Drift: ±3% F.S
Response Time: <60 s
Product Introduction
The SF6 gas leakage online monitoring system transmits the real-time measurement information of SF6 (sulfur hexafluoride), oxygen (O₂), temperature and humidity on – site to the DCS through the RS – 485 bus. When the measured data exceeds the set alarm value, the monitoring system controls the start of audible and visual alarms or exhaust equipment. With the human infrared monitoring function, when a human body is detected, the fan will be automatically turned on. After exhausting for a certain period of time (the exhaust time can be set in the fan parameters as required), the staff can enter the work area to ensure safe production on – site.
This SF6 gas leakage online monitoring system is widely applicable to the power industry, metallurgical industry, petrochemical industry, etc., in places where SF₆ gas is used, such as GIS electrical switches, transformers, and electrical busbars.
Main Features
1. The SF6 gas leakage online monitoring system uses imported SF₆ gas infrared sensors with an ultra – long service life.
2. Detection and display of environmental temperature, humidity and oxygen content.
3. The SF6 gas leakage online monitoring system can be equipped with functional components such as human infrared detectors, voice prompts, audible and visual alarms, and linked fans.
4. It supports RS – 485 bus data input, and can achieve detection, display, recording and alarm of up to 64 monitoring points.
5. The SF6 gas leakage online monitoring system supports the remote transmission output of measurement data through RS – 485.
Product Parameters
| NA1000MR Multi-channel Alarm Controller Parameters | |
|---|---|
| Parameter Name | Parameter Value |
| Display Screen | TFT256 color |
| Transmission Interface | RS-485 bus |
| Transmission Distance | ≤1000m |
| Connection Method | RVVP 4×0.75mm² shielded cable bus type |
| Input Quantity | （1~64）channels of intelligent transmitters |
| Operating Voltage | （85~265）VAC, 50/60Hz |
| Ambient Temperature | （-30~60）°C |
| Ambient Humidity | （0~95）%RH (no condensation) |
| Installation Method | Wall-mounted |
| Dimensions | 440mm×330mm×140 mm （L×W×H） |
| Weight | 10kg |
| NA1000FDII Gas Detection Alarm Parameters | |
| Sulfur Hexafluoride (SF₆) Gas Measurement Parameters | |
| Parameter Name | Parameter Value |
| Measurement Range | （0~1500）ppm |
| Maximum Allowable Error | ±30ppm or ±5% (indicated value) |
| Repeatability | ≤3% |
| Span and Zero Drift | ±3%F.S |
| Response Time | ＜60 |
| Oxygen (O₂) Measurement Parameters | |
| Parameter Name | Parameter Value |
| Measurement Range | （0~25）% |
| Maximum Allowable Error | ±0.5% (volume ratio) |
| Repeatability | ≤1% |
| Span and Zero Drift | ±1%F.S |
| Response Time | ＜60s |
| Temperature Measurement Parameters | |
| Parameter Name | Parameter Value |
| Measurement Range | （-40~100）°C |
| Maximum Allowable Error | ±2°C |
| Humidity Measurement Parameters | |
| Parameter Name | Parameter Value |
| Measurement Range | （0~99）%RH |
| Maximum Allowable Error | ±5%RH |