SF6 Gas Leakage Alarm 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 alarm online monitoring system transmits the real-time measurement information of sulfur hexafluoride (SF₆), oxygen (O₂), temperature and humidity on – site to the DCS via 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 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.
It is widely applicable to the occasions where SF₆ gas is used in GIS electrical switches, transformers, electrical busbars, etc. in the power industry, metallurgical industry, petrochemical industry, etc.
Main Features
1. The SF6 gas leakage alarm online monitoring system adopts an imported SF₆ gas infrared sensor with an ultra – long service life.
2. Detection and display of environmental temperature, humidity and oxygen content.
3. The SF6 gas leakage alarm online monitoring system can select functional components such as human body infrared detectors, voice prompts, audible and visual alarms, and linked fans.
4. It supports RS – 485 bus data input, and can achieve the detection, display, recording and alarm of up to 64 monitoring points.
5. The SF6 gas leakage alarm online monitoring system supports the remote transmission output of measurement data via RS – 485.
Product Parameters
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NA1000MR Multi-channel Alarm Controller |
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Display |
TFT256 color |
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Interface |
RS-485 bus |
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Transmission Distance |
≤1000 m |
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Connection Method |
RVVP 4×0.75 mm² shielded cable (bus type) |
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Input Capacity |
(1~64) channels of smart transmitters |
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Operating Voltage |
(85~265) VAC, 50/60 Hz |
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Ambient Temperature |
(-30~60) °C |
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Ambient Humidity |
(0~95) % RH (non-condensing) |
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Mounting Method |
Wall-mounted |
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Dimensions |
440×330×140 mm (L×W×H) |
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Weight |
10 kg |
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NA1000FDⅡ Gas Detection Alarm |
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SF₆ Gas Measurement |
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Measurement Range |
(0~1500) ppm |
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Maximum Permissible Error |
±30 ppm or ±5% of reading |
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Repeatability |
≤3% |
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Span & Zero Drift |
±3%F.S |
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Response Time |
＜60 |
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O₂ Measurement |
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Measurement Range |
(0~25) % |
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Maximum Permissible Error |
±0.5%(vol) |
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Repeatability |
≤1% |
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Span & Zero Drift |
±1%F.S |
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Response Time |
＜60s |
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Temperature Measurement |
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Measurement Range |
(-40~100) ℃ |
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Maximum Permissible Error |
±2℃ |
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Humidity Measurement |
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Measurement Range |
(0~99) %RH |
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Maximum Permissible Error |
±5%RH |
