3.3 Intended application
4 Humidity measurement in compressed air systems
5 Function
5
T
he new TPK portable series is intended to be used to measure the pressure dew
points, pressure and temperature of clean, oil-free compressed air, which is free of
any abrasive, corrosive, caustic, toxic, flammable and combustible components. For
the scope of application and the calibrated measuring range, please refer to the
technical data.
In the industrial sector, quality requirements for compressed air are becoming ever
stricter. Humidity and condensation are not permitted in compressed air and often cause
damage to machines and lead to reduced production quality. Compressed-air dryers are
commonly used. When used correctly, these reduce the moisture content of the air and
ensure the production of high-quality compressed air.
However, problems with dryers are often detected very late on, usually when damage has
already occurred. A large quantity of humidity will have already entered the compressed-
air network, and considerable efforts will be required to dry the system out again. The
high quality standards of the industrial sector call for continuous, reliable and stable long-
term monitoring of the humidity content. This is the only way to detect problems early,
before any damage has occurred.
With its large measuring range, the new TPK series is the ideal measuring system for
monitoring refrigeration, adsorption and membrane dryers. The device is primarily
intended for stationary applications but is also suitable for use as a portable measuring
device thanks to its simple connection system.
If compressed air is not dried before being fed into the compressed-air network, significant
quantities of condensate can form in the pipe network, resulting in the malfunctioning of
valves and pneumatic components, ultimately leading to loss of production. The pressure
dew point in compressed-air systems is therefore a key factor in determining air quality
and should be measured in all systems.
The new TPK portable series offers the ideal device for monitoring compressed-air quality
(humidity, pressure and temperature) and giving timely warning, before any damage has
occurred.
The series has a built-in measuring chamber with a protection filter and filter choke, as
well as a plug connection for a 7.2 mm NW compressed-air socket. Power is supplied via
battery or mains adapter. Initial set-up of the measuring system therefore requires no
interference with the compressed-air network, nor any electrical installation work.
Summary of Contents for TPK 21
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