What are the main gases that are detected by the four-in-one gas detector?
The four in one gas detector mainly detects combustible gases, carbon monoxide, hydrogen sulfide, and oxygen. These four gases are standard with the four in one detector and are suitable for use in many places. The chip technology of its special head greatly improves the response time and stability of gas detection, and at the same time significantly increases the battery life.
Before entering confined spaces such as reaction tanks, storage tanks or containers, sewers or other underground pipelines, railway tankers, shipping cargo holds, tunnels, etc., personnel must undergo on-site gas testing, and the testing must be conducted outside the confined space.
The four in one gas detector can set a content time period (5-15 minutes), calibrate gas concentration, calibration period, and turn on or off a certain gas. Turn on or off the normal working beep, automatically reset to zero when turned on, alarm lock, "safety" display function, mute function, mandatory calibration after expiration, calibration cycle setting, combustible gas unit selection, etc.
Event recording: can record more than 10 alarm events, including gas type, exposure value, alarm duration, etc. Data recorder: a user downloadable data recorder that scrolls 16 hours of data, with a default recording interval of 15 seconds
At this point, a four in one gas detector with a built-in pump must be selected Because there are significant differences in gas distribution and types in different parts (upper, middle, and lower) of a confined space Generally speaking, combustible gases have a lighter density and are mostly distributed in the upper part of enclosed spaces; Carbon monoxide has a similar specific gravity to air and is generally distributed in the middle of enclosed spaces; Heavier gases such as hydrogen sulfide exist in the lower part of enclosed spaces Meanwhile, oxygen concentration is also one of the types that must be detected.
