What is the four-in-one gas detector's numerical standard?
When it comes to the four-in-one gas detector, as the name suggests, it is a detector that can detect the concentration of 1-4 gases at the same time. The four-in-one gas detector is a variety of composite gas detectors that can be used in various environments. Rapid detection, when the detected gas concentration in the environment exceeds the alarm value, the four-in-one gas detector will send out various alarm reminders. So what is the numerical standard of the four-in-one gas detector?
1. Values of different concentration ranges of carbon monoxide:
Carbon monoxide (CO): the gas detector alarms when it exceeds 24ppm;
When the carbon monoxide (CO) on the detector exceeds 50pm, it is the maximum content allowed for adults to be exposed to it;
When carbon monoxide (CO) on the detector exceeds 200ppm, (2-3) hours later, there is a slight headache. Dizziness, compassion phenomenon, every 30 minutes or so to go outside to breathe;
When the carbon monoxide (CO) on the detector exceeds 400ppm, leave the scene immediately and report to the responsible person.
Second, the value of different concentration ranges of oxygen:
Oxygen (02): When it is lower than 19.5%, it is a hypoxic state, and the oxygen detector will give an audible and visual alarm; if it is higher than 23.5%, it is an oxygen-enriched state, and the oxygen detector will also send out an audible and visual alarm.
The oxygen (O2) value on the detector is 20.9%, which is the normal content of oxygen in the air;
When the oxygen (O2) value on the detector is lower than 15%, people will have shortness of breath, headache, dizziness, and fatigue all over the body. If the action is slow, leave the scene immediately and report to the responsible person.
3. Values of different concentration ranges of hydrogen sulfide:
Hydrogen sulfide (H2S): the gas detector will alarm when it exceeds 10ppm;
When the hydrogen sulfide (H2S) on the detector is 50ppm–100pa, there is a pungent smell. Get outside for air every 30 minutes or so;
When the hydrogen sulfide (H2S) on the detector is 100ppm–200pm, the sense of smell is paralyzed, immediately leave the scene and report to the responsible person;
When the hydrogen sulfide (H2S) on the detector exceeds 200pm, it will be poisoned within one hour. Immediately leave the scene and report to the responsible person.
4. Values of different concentration ranges of combustible gas methane:
1. Methane (CH4): When it exceeds 1.00%, the gas detector will alarm;
2. When the value of methane (CH4) on the detector is lower than 1.00%, it is normal;
3. When the value of methane (CH4) on the detector exceeds 5%, there is a danger of explosion when exposed to light. electric flame welding is prohibited;
4. If the value of methane (CH4) on the detector exceeds 25%, it can cause headache, dizziness, fatigue, lack of concentration, and rapid breathing and heartbeat. Get outside for some air every 30 minutes or so.
