What triggers a high dew point alarm for instrument air?

The high dew point alarm for instrument air is primarily triggered when the dew point exceeds -22°F. This is crucial because a high dew point indicates a higher moisture content in the air, which can lead to condensation within the instrument air system. Such moisture can compromise the functionality of sensitive instruments, cause corrosion, and lead to failures in pneumatic devices that rely on dry air for operation.

Maintaining a dew point below -22°F ensures that the air used in instrumentation remains dry enough to function effectively without the risk of moisture-related issues. In many industrial and medical applications, controlling the dew point to this level is essential for maintaining accuracy and reliability in instrumentation as well as ensuring that the integrity of the entire gas distribution system is preserved.