Explosion-proof hydrogen fluoride gas alarm
Contact Info
- Room 405, 4th Floor, Xijun Building, No.4 Shangxue Road, Xinxue Community, Bantian Subdistrict, Longgang District, Shenzhen City,
- 陈工
- 19926530652
- 2183550010@qq.com
Introduction A gas alarm is a flameproof safety device that can rapidly, reliably, stably and continuously detect gas concentration in industrial production. When the detected gas concentration reaches the preset alarm value of the gas alarm, the alarm will trigger an alert and drive external equipment to remind on-site staff to take necessary protective measures, which can prevent gas-induced combustion accidents. Working principle of the gas alarm: The alarm installed on-site operates with power supply. When a gas leak occurs, the sensor converts the detected leakage amount into a corresponding voltage signal for output. After the voltage signal is processed by the alarm, the data is uploaded and displayed on the screen. When the concentration reaches the set action value, the alarm will trigger an alert and drive external equipment. A gas alarm is a fixed instrument that can continuously detect the concentration of oxygen, toxic and harmful gases, or flammable and explosive gases in the working environment. The gas alarm adopts a diffusion method to convert the gas concentration signal at the monitoring point into an electrical signal in real time. After this signal is amplified, it undergoes A/D sampling, temperature compensation, and intelligent calculation by the CPU, and then the measurement result is processed. If the measured value exceeds the set alarm concentration, an alarm signal will be issued. The gas alarm features a dual-chamber design, special imported sensors, and the sensors adopt a modular design, making calibration and adjustment more convenient. It has superior performance, high stability, can output multiple sets of signals, and is easy to install and maintain, meeting the high reliability requirements of industrial site equipment. Features Ingenious structural design, extremely easy to install; Upper and lower alarm points can be set arbitrarily within the full range; Flameproof design, suitable for hazardous locations in Division 1 and Division 2 of factories; The gas alarm can be optionally equipped with a liquid crystal concentration display to show the concentration on-site in real time; The gas alarm can be optionally equipped with a special flameproof acoustic-optic alarm to realize on-site acoustic-optic alarm; Meets customers' requirements for any range from 1 to 99999 and all gas detection needs; Two sets of normally open passive contact outputs, used to control the AC contactors of fans or solenoid valves; Exquisite power supply design, pure SMT component surface mount technology, ensuring stable product performance; The sensor uses imported gas-sensitive elements, with high precision, long service life, low zero drift, fast response time, can work continuously for a long time, has a small body, is easy to operate, and has good anti-poisoning performance; The alarm point adjustment, zero point adjustment and target point calibration of the transmitter can be performed through the controller without opening the cover; Suitable for the detection of dozens of gases, and can display the gas name; Gas unit names: ppm, LEL%, VOL%, mg/m³; International standard (4～20)mA signal can be directly connected to the factory DCS system, and the RS485 digital signal is connected to the factory host computer
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| Instruments & Meters/Other Instruments/Gas Alarms & Detectors | |
