What is dew point and how to measure it?
Dew point is the temperature at which air must be cooled for water vapor to condense into dew or frost. It is affected by the water vapor saturation pressure, which is the maximum amount that air can hold. Condensation in pressurized air can cause blockages in pipes, machinery breakdowns, contamination, and freezing. Air compression increases water vapor pressure, which affects dew point. The typical range of dew point in compressed air is from ambient to -80°C (-112°F) in special cases. Compressor systems without air drying capability produce saturated compressed air at ambient temperature. Refrigerant dryers pass compressed air through a cooled heat exchanger, causing water to condense out of the air stream. Desiccant drying systems absorb water vapor from the air stream and can produce air with a dew point of -40°C (-40°F) and drier if required. Dew point can be reliably measured by selecting an instrument with the correct measuring range and understanding the pressure characteristics of the dew point instrument. It is important to follow manufacturer instructions and avoid installing sensors at the end of stubs or other "dead end" pieces of pipe where there is no airflow.
humidity probes, filters, transmitters, data loggers, docking stations, calibration, temperature probes, CO2 probes, pressure probes, water activity probes, DEW point, hygrometer, software (HW5 and HygroSoft), and monitoring systems (RMS). These instruments are used for various purposes such as humidity, temperature, CO2 measurement, water activity, DEW point, O2 measurement, and monitoring systems. They are all essential for various applications.