at 10:50 n the end you said CH4 LEL sensor is still warming up bcs we just applied high procentage VOL gas to it , does that mean , that VOL gas 50% Vol Methane also calibrated LEL sensor of CH4
“No, the % Vol. gas only calibrates the % Vol. sensor and the % LEL gas, only calibrates the % LEL sensor. In the normal operation mode, when the concentration of the combustible gas exceeds 100% LEL, the LEL sensor turns off to protect itself from too high an exposure of gas. This is indicated by the dashed lines. So, after the calibration of the % Vol. sensor, the calibration mode was exited quickly resulting in a still high residual of gas present on the LEL sensor. Therefore, it was turned off and just dashed lines were present on the display. After more time had passed, the LEL sensor would have come back up on line after warming up from being turned off.” Thank your for your inquiry. RKI Technical Support
Can you confirm that it is incorrect to calibrate a CH4 sensor (LEL range) using a C4H10 ( 0.9% / 50% LEL ) isobutane gas mixture? I always match my test gas mixture to my sensor ie: CH4 sensor = 2.5%methane for 50% LEL calibration. It will settle a “disagreement “ at work 😀
Appreciate
U can also add how to read expiry date of sensors
Thanks
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Hello, can you please explain why it is dangerous to use methane for LEL and for volume different gas as example isobutane?
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at 10:50 n the end you said CH4 LEL sensor is still warming up bcs we just applied high procentage VOL gas to it , does that mean , that VOL gas 50% Vol Methane also calibrated LEL sensor of CH4
“No, the % Vol. gas only calibrates the % Vol. sensor and the % LEL gas, only calibrates the % LEL sensor. In the normal operation mode, when the concentration of the combustible gas exceeds 100% LEL, the LEL sensor turns off to protect itself from too high an exposure of gas. This is indicated by the dashed lines. So, after the calibration of the % Vol. sensor, the calibration mode was exited quickly resulting in a still high residual of gas present on the LEL sensor. Therefore, it was turned off and just dashed lines were present on the display. After more time had passed, the LEL sensor would have come back up on line after warming up from being turned off.”
Thank your for your inquiry.
RKI Technical Support
Can you confirm that it is incorrect to calibrate a CH4 sensor (LEL range) using a C4H10 ( 0.9% / 50% LEL ) isobutane gas mixture? I always match my test gas mixture to my sensor ie: CH4 sensor = 2.5%methane for 50% LEL calibration.
It will settle a “disagreement “ at work 😀