How to calibrate an oxygen gas detector
For the detection of oxygen in the environment, there are many products provided by Shanghai Left Wall Industry, such as oxygen detectors, oxygen detection tubes, dissolved oxygen meters, trace oxygen detectors, etc. These detection products provided by Shanghai Left Wall Industry can meet the corresponding detection of oxygen content in various environments. This oxygen detector is one of them, mainly used for detecting the concentration of oxygen in ordinary environments.
The oxygen detection alarm device is a personal portable gas detection alarm device. Its sensors use electrochemical sensors, which are sensitive and suitable for continuously detecting the percentage concentration of oxygen in the ambient air of industrial and mining enterprises. When the environmental concentration is too high, it provides high and low limit sound, light, and vibration alarms to alert on-site personnel to evacuate the dangerous area as soon as possible.
How to calibrate an oxygen detector? Next, let me explain to you:
1. Maintain a stable calibration environment for gas detectors and avoid the impact of drastic changes in temperature, humidity, air pressure, wind speed, etc.
2. The calibration of the detector adopts the standard gas sample comparison calibration method, and the error at each point shall not exceed the specified value in the verification regulations.
3. The flow rate of the standard gas introduced must strictly follow the requirements of the manual. Excessive or insufficient flow rate can affect the detection results and cause measurement errors.
4. If an unused enterprise detector is left unused for a long time, it should first activate its catalytic element with 3% standard gas, and then adjust it with 1% standard gas. Otherwise, the error at each point is not within the qualified range, causing calibration failure.
5. The standard gas hood of the oxygen detector itself should be used. If an unreasonable standard gas hood is used, it may result in unstable and inaccurate numerical values.
6. When calibrating the oxygen detection alarm point, it is necessary to simultaneously observe the sound and light alarm signal. Instruments that cannot alarm or have low sound and light intensity are considered unqualified.
