What are the factors that affect the gas detector reading?
For the gas detector, I believe that everyone is no stranger. As the name implies, the gas detector is an instrument for detecting the concentration of leaked gas. The core component is the sensor, because the gas detector uses the sensor to realize the type and concentration of the leaked gas. Detected. Therefore, if the sensor fails and fails, the gas detector cannot be detected. So what are the factors that affect the gas detector reading? Today, Shenbei 's technical experts answer for you.
Three major factors
In general, many environmental factors can affect the reading of the gas detector sensor. Includes changes in pressure, humidity, and temperature. Changes in pressure and humidity affect the amount of oxygen actually present in the atmosphere.
Humidity change
If the humidity changes significantly (such as when entering an outdoor humid air environment from a dry environment with air conditioning), the water vapor in the air will drive away the oxygen, causing the oxygen reading to cause a drop of up to 0.5%. Gas detector sensors are equipped with special filters to eliminate the effects of humidity changes on gas readings. This effect will not be detected immediately, but after a few hours it will slowly affect the degree of oxygen.
Pressure change
If the pressure changes drastically (such as when passing through a gas plug), the gas detector sensor readings may be temporarily undulating and may cause the detector to sound an alarm. When the oxygen volume percentage is maintained at around 20.8% and the overall pressure drop is large, oxygen in the environment for breathing may become a hazard.
temperature change
The sensor is temperature compensated. However, if the temperature fluctuates drastically, the gas detector sensor reading may drift. The instrument should be calibrated at the job site so that Zui can greatly reduce the effect of temperature changes on the readings.
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