CALIBRATION GAS LEL H2S CO

54-9044E Calibration Gas Mixtures

BiosystemsCalibration Gas: 1.62% vol. Methane, 50% LEL Propane, (50%
LEL Propane Equivalent), 18% Oxygen, 50 ppm Carbon Monoxide, 25 ppm Hydrogen
Sulfide, Balance Nitrogen
The gas that is used to verify accuracy is every bit as important as the
detector itself when it comes to worker safety.
Choosing (and using) the right mixture is critical to the success of your
atmospheric monitoring program.
There are two important factors to consider when selecting the right
calibration gas mixture for combustible gas sensors.
1. Scale of calibration for proper sensitivity of the LEL sensor.
2. Type of calibration gas mixture for protection against selective loss
of sensitivity due to sensor poisoning.