What dew point temperature activates the instrument air dew point high alarm?

The dew point temperature that activates the instrument air dew point high alarm is typically set to alert operators when the moisture level in the compressed air system could potentially lead to operational issues. In this case, a dew point temperature of -22°F serves as an essential threshold. When the dew point rises to this level, it indicates that the air is holding more moisture than is advisable for efficient and safe operation of instruments and equipment.

Setting the alarm at -22°F is a precautionary measure to prevent moisture from condensing within the system, which could lead to various problems such as corrosion, decreased efficiency, and malfunction of sensitive instruments. This specific threshold is established based on industry standards and best practices for maintaining dry and clean compressed air systems used in critical applications like medical gas installations.

Other temperatures presented are generally set lower, signifying more stringent moisture control, but -22°F is recognized as the safe limit for triggering an alarm in many practical scenarios. By using these parameters, facilities can ensure that their compressed air systems operate effectively without moisture-related disruptions.