Environmental Pollution Gas Detection Alarm
Other Products
Environmental Pollution Gas Detection Alarm Instrument
The BSA/QT series gas detection alarm instrument (hereinafter referred to as the detector) is a fixed instrument capable of continuously detecting the concentration of combustible gas, oxygen, or toxic and harmful gases in the operating environment.
The detector uses natural diffusion to detect gas concentration. It features an LED digital display suitable for factory applications, displaying the concentration value of leaked gas in real-time. When the preset alarm point is exceeded, it immediately activates an audible and visual alarm signal or drives the exhaust system. The international standard (4~20)mA signal can be directly connected to the factory DCS system, and the RS485 digital signal connects to the factory host computer. The instrument adopts embedded microcontrol technology, offering simple operation, complete functions, high reliability, and stable, reliable overall performance.
Main Functions
The instrument adopts a low-power embedded microcontroller
LED digital tube display
Can connect to relays and audible/visual detectors
Safe cover-free infrared remote control operation
Users can set high and low alarm points by themselves
Calibration expiration reminder function
Sensor life expiration reminder function
Powerful communication function, parameters can be modified and queried via RS485
Restore factory settings function
Important operations require password verification to effectively prevent misoperation
Standard (4~20)mA signal or RS485 digital signal can be directly connected to the factory DCS system
Technical Specifications
| Technical Parameter | Parameter Value | Technical Parameter | Parameter Value |
| Measuring Range | 0-100%LEL | Status Indication | Green indicates normal operation, yellow indicates fault, red indicates concentration alarm |
| Applicable Gas | Combustible Gas | Alarm Point | User changeable setting User changeable setting |
| Display Error | ≤±5%F.S | Weight | About 1000g |
| Response Time | T90＜30s | Working Environment | Combustible Gas: -40℃~+70℃ Toxic Gas: -30℃~+50℃ Humidity Range: ＜95%RH (no condensation) |
| Display Mode | LED digital tube display | Working Voltage | DC(10~30)V, recommended DC24V |
| Operation Mode | Infrared Remote Control | Sampling Method | Free Diffusion |
| Explosion Proof Rating | Exd Ⅱ CT6 Gb | Cable Used | 3×1.5mm2 or 4×2.5mm2 cable |
| Protection Rating | IP66 | Transmission Distance | ≤1000m |
| Signal Output | Standard 4-20mA signal RS485 isolated digital signal (select one) | Working Environment | Combustible Gas: -40℃~+70℃ Toxic Gas: -30℃~+50℃ Humidity Range: ＜95%RH (no condensation) |
| Detected Gas | Measuring Range (Conventional Range) | Display Error | Sensor Life (Years) | |
| Oxygen | O2 | （0~30）%VOL | ±5%FS | 1~2 |
| Carbon Monoxide | CO | （0~500）ppm （0~1000）ppm | ±5%FS | 2~3 |
| Sulfur Dioxide | SO2 | （0~20.0）ppm | ±5%FS | 2~3 |
| Nitrogen Dioxide | NO2 | （0~20.0）ppm | ±5%FS | 2~3 |
| Chlorine Gas | CL2 | （0~20.0）ppm | ±5%FS | 2~3 |
| Hydrogen Sulfide | H2S | （0~100）ppm | ±5%FS | 2~3 |
| Ammonia | （0~100）ppm | ±5%FS | ||
| Industry Category | Instruments & Meters/Other Instruments/Gas Alarms & Detectors |
|---|---|
| Product Category | |
| Brand: | BSA/QT |
| Spec: | BSA/QT-BJ |
| Manufacturer: | 深圳市贝斯安智能科技有限公司 |
| Origin: | China / Guangdong / Shenshi |
