explosion-proof formaldehyde gas alarm
Contact Info
- Add:Room 405, 4th Floor, Xijun Building, No. 4 Shangxue Road, Xinxue Community, Bantian Subdistrict, Longgang District, Shenzhen City, Zip:
- Contact: 丁工
- Tel:18018762641
- Email:2183550010@qq.com
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Introduction A gas alarm is a flameproof safety device capable of rapidly, reliably, stably and continuously detecting gas concentrations 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 devices to remind on-site staff to take necessary protective measures, which can prevent gas-induced combustion accidents. Working Principle of 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 triggers an alert and drives external devices. A gas alarm is a fixed instrument that can continuously detect oxygen concentration or the concentration of toxic, harmful, flammable and explosive gases in the working environment. The gas alarm adopts a diffusion method to real-time convert the gas concentration signal at the monitoring point into an electrical signal. After the signal is amplified, it undergoes A/D sampling, temperature compensation and intelligent calculation by the CPU to process the measurement result. If the measured value exceeds the set alarm concentration value, an alarm signal will be sent out. The gas alarm features a dual-chamber design, special imported sensors, and the sensors adopt a modular design, making calibration and verification 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 on-site equipment. Features Ingenious structural design, extremely easy to install; Upper and lower limit alarm points can be set arbitrarily within the full range; Flameproof design, suitable for hazardous locations in Division 1 and Division 2 of industrial plants; The gas alarm can be optionally equipped with a liquid crystal concentration display, showing the concentration in real time on-site; 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 dry contact outputs, used for controlling contactors of fans or solenoid valves; Exquisite power supply design, with pure SMT component surface mount technology, ensuring stable product performance; The sensor uses imported gas-sensitive elements, with high precision, long service life, small zero drift, fast response time, long-term continuous operation, small size, convenient operation, and good anti-poisoning performance; The alarm point adjustment, zero 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 units: ppm, LEL%, VOL%, mg/m3; International standard (4～20)mA signal can be directly connected to the industrial DCS system, and RS485 digital signal is connected to the industrial host computer; |
Accuracy | ±2%FS (high-precision type), ±5%FS (standard type) |
Weight | 1.5Kg |
Warranty Period | 12 months |
Output Signal | 4-20mA/RS485/dry contact |
Flameproof Type | Intrinsic safety type |
Flameproof Mark | Ex d II C T6 Gb |
Working Voltage | DC12-24V±1% |
Dimensions | 140mm (length) × 164mm (width) × 75mm (height) |
Housing Material | Stainless steel / Aluminum alloy |
| Sampling Method | Diffusion type or pipeline type |
Temperature Grade | -40℃~+65℃ (standard type); -40℃~+70℃ (extreme type) |
Humidity Grade | 15~95% RH (non-condensing) |
Ambient Pressure | 86kPa ~106kPa |
Service Life | More than 3 years |
| Industry Category | Instruments & Meters/Other Instruments/Gas Alarms & Detectors |
|---|---|
| Product Category | |
| Brand: | 贝斯安 |
| Spec: | BSA/QT-BJ |
| Stock: | 99 |
| Origin: | 114403 |
