What might sudden changes in atmospheric pressure cause in a gas monitor?

Sudden changes in atmospheric pressure can lead to temporary fluctuations in the readings of a gas monitor. Gas monitors are designed to measure the concentration of specific gases in the air, and their sensors can be sensitive to variations in pressure and temperature. When the atmospheric pressure changes rapidly, it can affect the gas mixture being measured, causing the monitor to display inconsistent or transient readings until stable conditions are restored.

It's important to recognize that these fluctuations are typically temporary; once the atmospheric conditions stabilize, the gas monitor should return to its normal and accurate performance. Understanding this aspect is crucial for mine foremen and safety personnel to ensure they interpret the monitor’s data correctly during fluctuating conditions.