As a key equipment to ensure the safety of the working environment, the accuracy and reliability of the oxygen detector are very important. However, during use, due to various reasons, the oxygen detector may malfunction, resulting in inaccurate readings or failure to work properly. In order to find and solve these problems in time, we need to master a set of methods to accurately judge whether there is a fault in the oxygen detector. Do you know how to accurately determine whether the oxygen detector is faulty? The following is a brief introduction by yiyuntian electronics:

To accurately determine whether the oxygen detector has a fault, you can do it from the following aspects:

1. observation instrument basic status

(1) Display and indicator:

Check whether the display can be displayed normally and whether there are abnormal characters or error messages.At the same time, observe the flashing status of the indicator light of the oxygen detector to see if it is consistent with normal operation.

(2) Power and Battery:

Verify that the oxygen tester is properly powered on or that the battery is fully charged. At the same time, check whether the battery is installed correctly and whether the battery compartment is corroded or damaged.

(3) Appearance and structure:

Inspect the oxygen detector housing for cracks, damage, or deformation. At the same time, confirm whether the probe, connecting wire and other parts are in good condition without looseness or damage.

2. Functional Test

strong> (1) Self-test function:

Most oxygen detectors have a self-check function, through which you can initially judge whether the instrument is working normally. The self-test shall be carried out in accordance with the instructions of the instrument, and the self-test results shall be observed.

(2) Zero and span calibration:

Calibrate the zero point in clean air to ensure that the oxygen detector displays the correct zero value in an oxygen-free environment. Use oxygen standard gas with known concentration for range calibration to ensure that the oxygen detector can accurately display when detecting different concentrations of oxygen.

(3) Response test:

Place the oxygen detector in an oxygen environment with a known concentration and observe its response speed and reading stability. Compare the readings at different concentrations to determine whether they accurately reflect the change in oxygen concentration.

3. Check Sensor Status