1. The use of the combustible gas detector or portable combustible gas detector in an atmosphere with insufficient oxygen may cause the display of combustible gas to be lower than the actual concentration. Conversely, using a combustible gas detector in an oxygen-rich environment, the combustible gas reading may be higher than the actual concentration.
2. When the combustible gas report concentration instrument displays "over range", the combustible gas sensor needs to be recalibrated. For example, in the process of using a combustible gas detector, the measuring range of the instrument is 0-100% LEL, when the actual concentration is higher than 100%, it will lead to over-range. At this point, it is necessary to recalibrate the gas sensor.
3. Water vapor or other known magazines of silicone compounds may affect the normal operation of the combustible gas detector, causing its readings to be lower than the actual gas concentration. If the instrument is used in a water vapor environment with silicone compounds, recalibrate the instrument before next use to ensure accurate measurements.
