How to Inspect a Gas Detector?
Regularly inspect the exterior of the gas detector. Ensure the housing has no cracks, the display screen is free of scratches, and the air inlet filter is clean and unobstructed.
After powering on, observe the self-test process: sensor warm-up (typically 1-3 minutes), zero calibration, and alarm test (check if audible, visual, and vibration alerts function normally). Simulate a gas leak scenario to verify alarm response time and concentration display accuracy.
Ensure the battery level is ≥80% and spare batteries are sufficient.
Check if consumables like sampling probes and pump tubes are intact (for pump-equipped devices).
How to Use a Gas Detector Correctly?
Before using the gas detector, ensure all relevant personnel have received professional training and fully mastered its operation. Also, confirm the device has sufficient battery power and select a suitable environment for testing, avoiding usage under extreme weather conditions.
Use the provided attachments such as a belt clip, lanyard, or waist strap to secure the detector in the chosen position. Ensure it is firmly fixed and will not detach during movement or work. The device should be close to the body and not obstructed by clothing to allow the sensor to fully intake air.
Avoid direct use in environments with strong wind, high temperature (>50°C), or high humidity (>90% RH). Ventilate the area to be tested for 10 minutes before sampling to prevent localized concentration distortions.
Diffusion-type detectors: Position the probe at a height of 0.8-1.2 meters above the ground (human breathing zone) and move slowly to cover the detection area.
Pump-type detectors: Use the sampling pump to draw in gas, suitable for confined spaces or elevated detection points.
Record peak concentration levels and duration in real-time, and assess risk levels based on alarm thresholds.
Save data before turning off the device. Clean the probe and housing to prevent residual gases from corroding the sensor.
If excessive gas levels are detected, immediately evacuate personnel and activate the ventilation system.
