Why should the gas detector probe be replaced? What are the precautions?
As is well known, many portable 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. So what are the precautions for replacing the gas detector probe?
Precautions for replacing the gas detector probe:
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;
Maintenance methods for gas detectors
1. Whole machine inspection: The detector should be checked at regular intervals, usually with a signal current of DC4mA in clean air.
2. Maintenance of sensors: Sensors are installed inside the instrument and generally need to be rechecked and calibrated within six months to one year of use, with a testing report provided by the testing party.
3. If the sensitivity of the sensor in the gas detector is lost during use and needs to be replaced in a timely manner, the sensor can be judged for failure through regular calibration methods. If the calibration value does not reach the standard value, the sensor needs to be replaced in a timely manner.
