08-22-2024

DEW POINT MEASUREMENT IN COMPRESSED AIR SYSTEMS

Compressed air has become indispensable in modern

production processes. Depending on the respective application,

different requirements are placed on the compressed air.

Maintaining a certain moisture content or dew point is a basic

requirement for every process to ensure long-term, troublefree

operation, which can also lead to greater energy efficiency

with sustainable cost savings.

Condensed water in compressed air lines significantly shortens

the service life of pneumatic components. Hoses become brittle

and metallic components can corrode. Excessive moisture

also leads to sticking of various goods that are transported

pneumatically, such as sugar, flour, cement or granulate.

ipf electronic has added the YT900001 sensor for absorption

dryers and the YT900002 sensor for refrigeration dryers to

its range especially for measuring humidity and dew point

in compressed air and gases. The devices have a capacitive

polymer sensor for measuring relative humidity. The sensor

element is extremely long-term stable (>5 years) and also offers

high accuracy (± 1°C at 50...-20°C // ± 2°C at -20...-50°C).

Only water vapor penetrates the cover electrode by diffusion

and accumulates reversibly on the polymer. This changes the

capacitance of the sensor. Two different temperature ranges

(-80...20°C and -20...50°C) are available. The measured value

can be evaluated via an analog output (4-20mA) or via the

Modbus RTU interface. The AT000009 measuring chamber is

available for quick and easy installation. The connection is made

via a 5-pin M12 plug (e.g. VK505621). The protection class is

IP66. (bb)

Further links

Dew point sensor, adsorption dryer YT900001