What is the purpose and type of installing a fixed gas detector?
Fixed gas detectors are a common type of gas detector, mainly composed of controllers and gas detectors. Only by correctly installing these two parts can the normal operation of the gas detector be guaranteed.
Purpose of installing a fixed gas detector:
1. To protect the health and personal safety of personnel working in hazardous areas;
2. To protect the company's property and fixed assets from damage;
3. Strictly implement regional and national laws and regulations;
2、 Inspection gas type:
1. Harmful gases are prone to fire and explosion, such as methane, butane, propane, etc;
2. Check for carbon monoxide, hydrogen sulfide, sulfur dioxide, and some organic volatile VOC gases;
3. Inspection can lead to suffocation hazards, such as hypoxia, oxygen being consumed or replaced by other gases.
What are the precautions for calibrating gas detectors
1. Calibration environmental conditions
Gas alarms are electronic instruments, and the errors in their calibration mainly come from the calibration environment. Good ventilation is required, and the measured components will not be disturbed during calibration. Its environment and temperature must reach a certain value.
2. Calibration flow control
Due to the fact that gas alarms are mostly catalytic combustion sensors, the flow rate directly affects the accuracy of the calibration results. Therefore, it is necessary to control the flow rate. If the flow rate is too high or too low, it will affect the calibration results.
3. The display values of the main controller and the on-site detector do not match during calibration
When the concentration of gas detector gas in the environment reaches or exceeds the preset alarm value, the main controller will issue an alarm to remind the on duty personnel to take safety measures to ensure the safety production of the enterprise.
4. Calibration cover for calibration
When calibrating flammable and toxic gas alarms, calibration covers are used, and each manufacturer has its own dedicated calibration cover. When calibrating, it is better to use the original factory produced calibration cover, as the calibration results will be more accurate. In addition, to ensure detection accuracy, the gas alarm should be calibrated at least once a year.
