Main functions and features of the system

（1) The instrument adopts infrared sensors

Infrared absorption principle, dual wavelength, with temperature compensation function

High reliability, high stability, sensor lifespan greater than10 Years

Digital and analog output

（2) Real time and quantitative detection of SF₆gas concentration:

Accurately measure SF in the air within the range of 0-3000ppm₆Gas content, full range quantitative display.

（3）SF₆Gas concentration exceeding limit alarm

SF₆Gas content exceeds the allowable thresholdAt 1000ppm, the system emits an audible and visual alarm.

（4) Real time oxygen concentration detection

The system can beAccurately measure the oxygen content in the air within the range of 0-35%.

Oxygen content below allowable thresholdAt 18%, the system emits an audible and visual alarm.

（5) Universal Power Protocol, seamlessly integrated with integrated automation systems

The system adopts485 communication mode, optional with 61850 or IED communication module, to achieve seamless integration with multiple domestic integrated automation manufacturers such as NARI, Nanzi, Xuji, Sifang, Dongfang Electronics and other systems.

（6) Multi parameter output

Through the power protocol, the system can integrate various collectorsSF₆、O₂Multiple parameters such as content, temperature and humidity values, alarm status, etc. are transmitted in real-time to the integrated automation system, truly achieving unmanned operation.

（7) Multi state output

The system can simultaneously provide alarm signals24V signal and constant on/off switch.

（8) Multiple fan control methods

The fan operates throughout the dayMultiple starting methods such as timed self start, forced start, and personnel induction start are available for 5 time periods to more effectively ensure personal safety.

Main technical characteristics of the system

（1) Equipment lifespan: Over 10 years

（2) Working environment

Temperature range: -30℃～＋65 ℃

Humidity range:≤99%RH

Earthquake level:7 degrees

Atmospheric pressure:86kPa～106kPa

（3）SF₆Measurement indicators

Measurement range:0～3000ppm

Reference error:±5%FS

（4) Oxygen measurement indicators

Detection concentration:0～35%

Oxygen concentration alarm point:18%

Oxygen measurement accuracy:<>₂existAt 21%

（5) Other indicators

Working power supply:AC 220V

Switching output capacity:24V/48V/110V/220V

Fan output contact current: 45A (customizable according to user needs)

Fan ventilation time setting: adjustable, default15MIN/time

Communication method:RS-485 bus mode, universal power communication protocol

Insulation performance Between the casing and the power supply:>10MΩ

Electrical strength Between the casing and the power supply:>2000V

Electromagnetic compatibility characteristics: fast transient pulse trainGB/T17626.4-1999 Level 3

Lightning strike (surge)GB/T17626.5-1999 Level 3