Fixed H₂S Gas Detector: Essential Safety Equipment for Industrial Environments

What is a fixed H₂S gas detector?
The fixed H₂S gas detector is a long-term installed equipment, which is used to continuously monitor the concentration of hydrogen sulfide (H₂S) in industrial environment. H₂S is a colorless and highly toxic gas with rotten egg smell, which will cause serious harm to human body even at low concentration. The fixed detector can give an alarm in real time to ensure the safety of employees and protect industrial assets.

principle of operation
Stationary H₂S detectors usually use electrochemical or semiconductor sensors. When H₂S touches the sensor, it will generate an electrical signal, which will be converted into a measurable concentration value. When the concentration exceeds the preset threshold, the equipment will trigger an acousto-optic alarm, which can be linked with the control system to realize remote alarm.

Main advantages
24 hours continuous monitoring

Rapid detection of dangerous gas concentration

Resistant to high temperature, high humidity and dust interference

Support remote monitoring and data recording.

The sensor has long service life and easy maintenance.

Application scenario
Petrochemical plant: oil refining, oil storage and gas treatment area.

Sewage treatment plant: sewage tank and exhaust system

Mines and Tunnels: Safety Monitoring of Underground Operation

Paper-making and Leather-making Industries: Sulfide Emission Control

How to choose a suitable detector
Sensor type: electrochemical sensor has high precision and semiconductor sensor has low cost.

Measurement range: according to the environment, such as 0–100 ppm or 0–500 ppm.

Alarm function: acousto-optic alarm and remote alarm

Protection grade: IP65 or above, suitable for harsh or outdoor environment.

Maintenance convenience: easy calibration and replacement of sensors, reducing long-term costs.