Fixed formaldehyde detectorIt is a device for long-term and continuous monitoring of formaldehyde concentration in the environment, with high precision, real-time alarm, explosion-proof design, and data remote transmission function. It is suitable for formaldehyde concentration monitoring and safety protection in industrial and special places.

　　Fixed formaldehyde detectorGas sensors typically use principles such as electrochemistry, infrared spectroscopy, catalytic combustion, thermal conductivity, PID photoionization, etc. Among them, electrochemical sensors detect formaldehyde concentration by generating electrical signals through chemical reactions between formaldehyde and electrodes, which have the characteristics of high sensitivity and fast response; Infrared sensors utilize the absorption characteristics of formaldehyde molecules towards specific wavelengths of infrared light for detection, with good stability.

Function:

Real time monitoring and alarm: The device can continuously monitor the formaldehyde concentration in the environment 24 hours a day. When the concentration exceeds the set value, it immediately triggers an audible and visual alarm signal and notifies the management personnel through the host or backend system.

Data transmission and recording: Supports remote transmission of 4-20mA current signals or RS485 digital signals, and can transmit detection data in real time to the backend host or upper computer system for remote monitoring and data analysis. Some models also have data storage function, which can record historical data for subsequent queries.

Explosion proof design: For flammable and explosive areas, the equipment adopts explosion-proof enclosures and intrinsic safety circuit design to ensure safe use in hazardous areas.

Multi range and high precision: The detection range covers 0-10ppm to 0-10000ppm, with a resolution of up to 0.001ppm and an accuracy error of ≤± 3%, meeting the detection needs of different scenarios.

This device has the advantages of high sensitivity, small error, fast response, and convenient operation. It can be widely used in petroleum and petrochemical, metallurgy, environmental protection, gas, fire protection, municipal, chemical, shipping, power, process control, sewage treatment, emergency rescue monitoring and other industries.