oxygen detector can be mainly used to detect the 1 gas detection alarm used to continuously detect the percentage concentration of oxygen in the ambient air. when the ambient concentration is too high, it will give high limit and low limit sound, light and vibration alarms to warn the on-site personnel to evacuate the dangerous area as soon as possible. In the use of oxygen detector, sometimes because of a variety of oxygen detector caused by some small fault. Do you know how to troubleshoot if the oxygen detector fails? The following is a brief introduction by yi yun Tian:

1. detector oxygen measurement values without regular drift

Common causes:

1. Unstable gas pressure and flow rate.

2. The zero position of the measurement loop or the poor contact of the range potentiometer cause the output signal drift of the oxygen detector.

Handling:

1. Set pressure stabilizing and stabilizing valves to ensure constant pressure and flow of sample gas entering the oxygen detection instrument.

2. Check and maintain, or replace the potentiometer used by the oxygen detector.

2. oxygen detector measures unstable or repeated swings

Common Causes:

1. The DC stabilized power supply has poor performance, resulting in unstable working current of measuring bridge.

2. The constant temperature performance of the oxygen detector is not good, and the temperature fluctuation range is too large. Due to the unstable heat dissipation condition of the hot wire, the measured value drifts without rules.

3, zero potentiometer failure or poor contact.

Handling:

1. Repair or replace the regulated power supply of the oxygen detector to improve the regulated voltage accuracy.

2. Check and maintain or replace the potentiometer.

3. Replace or maintain the zero potentiometer of the oxygen detector.

3. oxygen detector water mist and droplets can cause damage to thermal components

Common Causes:

1. There are water mist or droplets in the oxygen detector.

2, oxygen detector into oily or viscous substances.

processing method:

1, oxygen power off the detector, purge or clean the detector with dry air. Purge pressure: 0.05MPA.

2. Power off the oxygen detector. After the detector is reduced to normal temperature, wash and clean with washing liquid, and then blow dry with dry air.

To sum up, it is the cause investigation and corresponding solution after the failure of the oxygen detector. Oxygen detectors are widely used in medical, industrial, environmental protection and other fields, and are suitable for occasions where oxygen concentration in the environment needs to be detected to ensure adequate oxygen supply, personnel safety and environmental quality.