Gas detectors use sensors to measure the levels of target gases. Why calibrate new sensors? Sensor performance is prone to drift over time and with exposure to gaseous environments. That’s why you need to calibrate them regularly – to ensure the sensors are working accurately.

What does the calibration process involve? Calibration involves testing the sensors against a known calibration standard and adjusting to correct for any inaccuracies.  The “known calibration standard” is the contents of your calibration gas bottle.

Why do I still need to calibrate even when the gas detector is fairly new? Well, as [Read more…]

All electrochemical or catalytic gas monitor sensors can be prone to both positive and negative drift due to environmental factors such as changes in temperature and humidity.

However these are not the most common causes of negative readings.

Negative sensor readings more commonly occur when [Read more…]