What types of gases are mainly 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 four in one detectors and are suitable for use in many places. Its unique chip technology greatly improves the response time and stability of gas detection, and at the same time significantly improves the battery's service life.
Staff entering enclosed spaces, such as reaction tanks, storage tanks or containers, sewers or other underground pipelines, railway tankers, ship cargo holds, tunnels, etc., must undergo on-site gas testing before personnel enter, and testing must be conducted outside the enclosed space.
The four in one gas detector can be set with a content time cycle (5-15 minutes), calibration gas concentration, calibration cycle, and the ability to turn on or off a certain gas. Turn on or off the normal working beep, automatic zeroing upon startup, alarm locking, "safety" display function, mute function, mandatory calibration after expiration, calibration cycle setting, selection of combustible gas units, etc.
Event recording: Can record more than 10 alarm events, including gas type, exposure value, alarm duration, etc. Data recorder: User downloadable data recorder, scrolling to record 16 hours of data, with a default recording interval of 15 seconds
At this point, it is necessary to choose a four in one gas detector with a built-in pump. This is because the gas distribution and types vary greatly in different parts (upper, middle, and lower) of a confined space. Generally, combustible gases have a lighter density, and most of them are distributed in the upper part of the confined space; Carbon monoxide has a similar specific gravity to air and is generally distributed in the middle of enclosed spaces; Heavy gases such as hydrogen sulfide exist in the lower part of enclosed spaces. At the same time, oxygen concentration is also one of the types that must be detected.
