A must-have choice for gas detectors
Have you paid attention to the selection of gas detectors? How to choose according to the environment? How to choose according to the space? How to choose according to the gas? No matter what the reason for our choice is, we must pay attention to the following points:
1. Calibration requirements
Method of correction, length of time, and ease of correction. There are two calibration methods - laboratory and field calibration. Field calibration involves exhaling the oxygen sensor. The instrument's oxygen reading must drop and an alarm occurs.
2. Reliability
The longer the gas detector sensor life is, the better. Generally speaking, the sensor life is at least 2 years, and the flammable gas sensor is 2 to 5 years. The longer the average time to error, the better. What is the accuracy and precision? The smaller the error value, the better. The product warranty period is generally 2 years.
3. Applicability
Enterprise professionals and experienced on-site operations supervisors or employees should identify and evaluate hazardous gases at limited space operations sites to determine whether the selected detector's sensor meets the usage requirements.
4. Stability
What are the zero offset and full amplitude offset values of the detector? The smaller the better.
5. Convenience
Light weight, small size, easy and comfortable to wear, easy to maintain.
6. Ease of identification
Numerical or pointer type gas detector. Generally speaking, numerical values have the advantages of being easier to read and less misjudgment. Whether the display area is large enough, with background lighting and larger fonts to facilitate reading and understanding. Is the alarm loud enough to be distinguished from background noise? Generally, it is suitable for efficiency above 90dB(A). Whether the warning flashing light can be identified from various angles. Whether the signal can be continuously displayed as the measured gas concentration changes, and the alarm will be stopped after confirmation or countermeasures are taken.
