Introduction to how to calibrate oxygen gas detector
For the detection of oxygen in the environment, Shanghai Zuoqiang Industrial supplies a wide range of products, such as oxygen detectors, oxygen detection tubes, dissolved oxygen meters, trace oxygen detectors, etc. The detection products provided by Shanghai Zuoqiang Industrial can meet our needs for detecting oxygen content in various environments. This oxygen detector is one of them, mainly used to detect the concentration of oxygen in ordinary environments.
Oxygen detection alarm is a personal portable gas detection alarm. Its sensor adopts an electrochemical sensor, which is 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 will give high and low limit sound, light, and vibration alarms to warn 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 errors at each point shall not exceed the specified values in the verification regulations.
3. The flow rate of the standard gas must be strictly in accordance with the instructions. If the flow rate is too large or too small, it will affect the detection results and cause measurement errors.
4. If the enterprise testing instrument is left unused for a long time, 3% standard gas should be first introduced to activate its catalytic element, and then 1% standard gas should be introduced for calibration. Otherwise, the errors at each point are not within the qualified range, resulting in calibration failure.
5. The oxygen detector should use its own standard gas hood. If an unreasonable standard gas hood is used, it will result in unstable and inaccurate values.
6. When calibrating the oxygen detection alarm point, the sound and light alarm signals should be observed simultaneously. Instruments that cannot alarm or have low sound and light intensity are considered unqualified.
