Real-time monitoring • Voice prompt • Fan linkage
| 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 |
The SF6 gas leakage on-line monitoring system remotely transmits the real-time measurement information of on-site SF6 (sulfur hexafluoride), oxygen (O₂), temperature and humidity to the DCS through the RS-485 bus. When the measured data exceeds the set alarm value, the monitoring system controls the activation of audible and visual alarms or exhaust equipment. With the human body infrared monitoring function, when a human body is sensed, the fan is 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.
The SF6 gas leakage on-line monitoring system is widely applicable to the power industry, metallurgical industry, petrochemical industry, etc., in occasions where SF6 gas is used in GIS electrical switches, transformers, electrical busbars, etc.
1. The SF6 gas leakage on-line monitoring system uses an imported SF₆ gas infrared sensor with an ultra-long service life.
2. Detection and display of environmental temperature, humidity and oxygen content.
3. Optional functional components such as human body infrared detectors, voice prompts, audible and visual alarms, and linked fans.
4. The SF6 gas leakage on-line monitoring system supports RS-485 bus data input, and can achieve detection, display, recording and alarm of up to 64 monitoring points.
5. Supports the remote transmission output of measurement data through RS-485.
| 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 |
