What should be paid attention to in the use of gas detectors
①When using the portable gas detector, it should be worn as close as possible to the mouth and nose, such as the front neckline of clothes, jacket pockets, etc.
② Try to avoid collisions during use, which may cause abnormal detection data.
③ Gas detector sensors and other components are precision components. Do not open the cover of the adjusted instrument casually. During use, pay attention to waterproof and impurities to prevent abnormal data.
④ During use, if there are abnormal situations such as continuous flashing of the indicator light, no numerical display on the display screen, no movement of the displayed value in the area where the gas exceeds the standard, or a large gap, etc., the operation should be stopped immediately, and the operation should be evacuated to a fresh air area to observe the problem and eliminate it in time , otherwise it is strictly prohibited to continue to use.
⑤ When various gas detection exceeds the standard, the operation shall implement the national and company regulations:
Concentration and operation time requirements for gas field operations (excluding confined spaces):
When the concentration of CO in the air is 24ppm, it can work normally;
When the concentration of CO in the air is 40ppm, it can work for 1 hour;
When the concentration of CO in the air is 80ppm, it can work for half an hour;
When the concentration of CO in the air is 160ppm, it is only allowed to work for 15-20 minutes, and the interval between each work is 2 hours.
Oxygen operation: the ambient oxygen content in the operating area shall not be lower than 19.5%, and the oxygen content in a limited space is generally 19.5% to 21%, and shall not exceed 23.5% in an oxygen-enriched environment.
Hydrogen sulfide work:
When the concentration of hydrogen sulfide is lower than 40ppm, you can wear a filter gas mask to work, and mark the applicable substances on the surface of the canister;
Positive pressure air respirators should be used when operating in areas where the concentration of hydrogen sulfide is greater than 40ppm or the concentration is unknown or the concentration of sulfur dioxide is higher than 2ppm;
It is strictly forbidden for anyone to enter the area that may contain hydrogen sulfide gas without wearing suitable protective equipment, and it is forbidden to remove the anti-virus equipment in the toxic area.
⑥ If dizziness, tinnitus, vertigo, nausea, etc. occur during operation, the operation should be stopped immediately, and evacuated to an area with fresh air (pay attention to the air flow direction and choose an upper air outlet). save.
