Regardless of the principle of gas detectors, the detectors are tested in a relatively comparative manner. When the working time of the gas detector becomes longer, the accuracy of the sensor itself will be reduced due to the sensor loss, the use environment or the interference gas. At this time, in order to ensure the accuracy of the gas detector, the gas detector Testing and calibration is very necessary.
Let us first review what is the test and calibration of the gas detector: first calibrate the instrument with a zero gas and a standard gas, the instrument will store the obtained standard curve, when the gas detector works in the environment under test. The instrument compares the detected signal of the measured gas concentration with the standard curve stored in the calibration, and then calculates the concentration of the measured gas.
There are many kinds of sensors used in gas detectors. The sensors used are different when detecting different gases. Although our gas detectors can replace sensors, it is not that our instruments can be used at any time. Probe. Therefore, when we replace the sensor for our customer's gas detector, in addition to the necessary new sensor activation time, we will recalibrate the sensor replacement instrument at this time.
It should be emphasized that no matter what type of sensor gas detector, the customer must regularly calibrate according to our recommendations to ensure the normal operation of the instrument and the accuracy of the results. The gas detector needs to be zeroed before each work. The various gas detectors produced by Huafan Qinlu have the function of automatic calibration and zero return.
