We all know that in many industrial production processes, it is inevitable that the four-in-one gas detector will be applied. Because the four-in-one gas detector is the 1 kind of toxic gas detector, it is used to detect the four gases of CO, O2, H2S and combustible gas. It is the 1 detector used to identify threats and pre-emptively formulate agreements for worker safety. However, the four-in-one gas detector needs to be measured before use. What are the measurement methods of four-in-one gas detector ? The following is a brief introduction by yi yun Tian:

four-in-one gas detector has the following three measurement methods:

1. Direct measurement

Single measurement of the sensor cartridge inserted into the host unit.

The host unit is inserted into the sensor box of the four-in-one gas detector, and the detection is performed for 30 minutes or 1 hour in direct measurement mode.

Features: Easy to operate, but only one measuring point can be used for each test, which takes a long time.

2, sampling measurement

The sensor box of the four-in-one gas detector is used separately as a passive sampler, and the detection result is read out by the host unit.

The sensor itself can be used as a passive sampler. No fan and pump required. The host unit reads the change in relative colorimetric absorbance occurring in the sensor before and after sampling and converts it to formaldehyde concentration.

Features: Can perform multi-point detection at the same time, with high efficiency. However, multiple sensor boxes must be used at the same time.

3. Continuous measurement

The main unit is inserted into the sensor box of the four-in-one gas detector for continuous long-term monitoring of gas concentration.

The host unit reads the change in absorbance every 30 minutes and stores it, continuously, or until the sensor reaches saturation.

Features: Long-term continuous monitoring, multiple continuous monitoring values can be obtained at the same measuring point, and the change of gas concentration within the time period can be obtained. To carry out multi-point continuous monitoring at the same time, multiple hosts and sensor boxes must be equipped at the same time.

In summary, it is the measurement method of the four-in-one gas detector. By using the four-in-one gas detector, we can protect our personal safety, thereby helping to prevent accidents and exposure to unsafe areas, allowing managers to discover potential safety hazards in time and ensure production safety.