A wastewater treatment facility is a wet maze of rooms, pipes, pumps, wells, chambers, concrete tanks and settling...
Most malfunctions are discovered at the time of calibration or bump testing, meaning at some point between calibrations the gas monitor manifested a problem. Is a bump test adequate or is calibration a better choice?
We are often asked to explain the difference between calibrations and bump testing. This is a controversial subject. OHS would have you do a full calibration