What Are the Selection Tips for Toxic Gas Detectors?
Due to the wide variety of toxic and harmful gases, each with different properties and concentrations. Therefore, the application scenarios of toxic and harmful gas detectors are also different.
The purchasing tips are as follows:
When using traditional multi in one or composite toxic gas detectors, the problem of cross interference in gas detection channels often occurs, which will affect the detection accuracy. Therefore, before choosing an instrument, we must pay attention to consulting the instrument company regarding gas interference.
When purchasing instruments, attention should be paid to their accuracy values. Accuracy is the basic standard for measuring the quality of a gas detector. If the type and concentration of the detected gas cannot be accurately displayed, it indicates that the quality and detection of the instrument do not meet the standards. The smaller the precision error value, the more expensive the price, so everyone can choose according to their own needs.
3. Check the function of the toxic gas detector. Whether the instrument is in good condition mainly depends on whether it has multiple functions, such as data transmission, fall alarm, and end-of-life reminder.
4. Check if the response speed of the instrument is fast. When detecting data, if the value exceeds the standard, every minute will be in danger. Sometimes it only takes a second to avoid potential safety accidents. Therefore, the response speed of toxic and harmful gas detection equipment is very important.
What should I do if the gas detector measurement is inaccurate
When using a gas detector to confirm whether the gas in the detection environment is accurate compared to the actual concentration, there is a certain difference between the theoretical value and the actual value. It is recommended to calibrate the instrument with a standard gas calibration instrument before use to ensure the accuracy of the instrument detection. Alternatively, the instrument can be calibrated by a third-party metrological verification institution at or above the provincial level, as it is difficult for non professional personnel to handle the accuracy issues of such products alone.
If the gas detector cannot accurately measure data after calibration, it should be communicated with the manufacturer to confirm whether the gas sensor in the instrument can continue to be used. If the sensor itself has exceeded its service life, although it can still be used normally after recalibration for a short period of time, problems such as inaccurate measurement values or excessive drift values may still occur after a period of time. Therefore, the manufacturer can be contacted to replace the gas sensor in a timely manner.
If the gas sensor has been in use for some time, it may cause measurement errors, and the detector needs to be recalibrated.
