For continuously monitor SF6 gas leakage and oxygen levels in the room
NA1013 SF6 room monitor is used to continuously detect and monitor the concentration of sulfur hexafluoride (SF6) gas leakage in a specific area, such as a substation or switchgear room. The monitor typically consists of a sensor module and a control unit.
Sensor model : NA1013
The sensor module is installed in the room and measures the concentration of SF6 gas using infrared absorption spectroscopy. Infrared light is passed through a sample cell containing the gas, and the degree of absorption is measured. The amount of absorption is directly proportional to the concentration of SF6 gas in the sample cell. The sensor module is designed to be highly sensitive and can detect very low levels of SF6 gas.
Control Unit model : NA1000MR
The control unit is typically located outside the room and is connected to the sensor module through a cable. It receives data from the sensor module and provides the user with a visual and audible alarm when the SF6 gas concentration exceeds a preset threshold. The alarm can be set to different levels to indicate different levels of gas concentration.
| Control Panels | Parameter |
|---|---|
| Display screen | TFT256/color |
| Transmission interface | RS485 bus |
| Transmission distance | ≤1000 m |
| Connection method | RVVP 4×0.75 mm2 Shielded cable bus |
| Input quantity | 1~64 channel intelligent transmitter |
| Working voltage | (85~265）VAC、50/60Hz |
| Ambient temperature | (-30~60) ℃ |
| Ambient humidity | 0~95 %RH（no condensation） |
| Install method | Wall-mounted |
| Dimension | 440 mmⅹ330 mmⅹ140 mm (LⅹWⅹH) |
| Weight | Approximately 10 kg |
| Sensor | Parameter |
| Target Gas | Sulfur hexafluoride(SF6)、Oxygen(O2) |
| Working Principle | SF6: NDIR O2: Electrochemistry |
| Measuring range | SF6 : 0 – 1500ppm O2 : 0 – 25 % VOL |
| Resolution | SF6 : 1ppm O2 : 0.1%vol |
| Accuracy | SF6:±5%FS O2:±0.5%vol |
| Sampling method | Diffusion |
| Ambient temperature | 0 ℃～+40 ℃ |
| Ambient humidity | <90 %(no condensation) |
| Temperature Measurement | -40 ~ 100 ℃ |
| Humidity measurement | 0 ~ 99 %RH |
| Communication | RS485(MODBUS) signal output Connection: RVVP 4×0.75 mm2 Shielded cable bus Distance：Max 1000m |
| (4～20)mA output | (4～20) mA output is optional, the maximum load is 1000 Ω |
| Power supply | 24 VDC±15 % |
| Dimensions | 174 mm×110 mm×66 mm (L×W×H) |
| Weight | Approximately 0.6 kg |
Other features:
- Self-produced infrared sensor performance stable 10 years life
- zigbee wireless connection optional
- Maximum Support 64 sensors for 1 host