Daily Usage Precautions for Portable Gas Detectors
Toxic and harmful gas detectors, like other analytical and detection instruments, use a relative comparison method for measurement: first, calibrate the instrument with a zero gas and a standard concentration gas, obtain a standard curve, and store it in the instrument. During measurement, the instrument compares the electrical signal generated by the concentration of the gas to be measured with the electrical signal of the standard concentration to calculate the accurate gas concentration value.
Therefore, zeroing the instrument at any time and regularly calibrating the instrument are essential tasks to ensure accurate measurement. It should be noted that many gas detectors currently have replaceable detection sensors, but this does not mean that a detector can be equipped with different detector probes at any time.
Whenever replacing the probe, in addition to requiring a certain sensor activation time, the instrument must also be recalibrated. In addition, it is recommended to perform response testing on the standard gas used in various instruments before use to ensure that the instruments truly
provide protection. Shanghai Wuxiang Instrument Co., Ltd. conducts the following analysis:
1) Prevent gas detectors from falling from heights or being subjected to severe vibrations;
2) It should be used in a place free from corrosive gases, oil fumes, dust, and rain;
3) Do not frequently expose the gas detector to high concentration gases above the detection range, and strictly prohibit collision and disassembly of the sensor, otherwise it will lose the working life of the sensor;
4) If the machine has no response for a long time, please turn off the power and restart it;
5) To ensure measurement accuracy, the machine should be calibrated regularly, and the calibration cycle should not exceed one year;
6) Under normal working conditions, the sensor has a lifespan of over two years;
