MICRO-EPSILON DTA-1G8 Betriebsanleitung Seite 31

Installation and Assembly
Demounting the bellows
Inductive Gauging Sensor with Pneumatic Extension
For gauging sensors with pneumatic extension, the probe tip is withdrawn into the sensor housing by the
force of a spring (rest position). By applying compressed air at a low pressure (8 .... 15*10
0.8 ... 1.5 bar) tips are extended and pressed against the test object in the measuring position.
Compressed air is therefore only needed at the moment of measurement. If the air feed is interrupted, the
gauging sensors automatically release the test object.
The following measures and operating notes must be observed when using gauging sensors with pneumatic
extension:
Supply gauging
sensor having
At law temperatures, it might be necessary to use higher pressure in order to move the probe tip faster.
pneumatic extension
with clean com-
pressed air (free of
This means that the movement of each gauging-sensor probe tip can be individually controlled and any toler-
oil, dust and water).
ances in the clamping holder or on the gauging sensor can be compensated.
Else damage to the
gauging sensor.
This ensures a fast build-up and decay of pressure.
induSENSOR, Series LVDT, Gauging Sensor
Unscrew the probe tip.
Remove the front support ring.
Remove the rear support ring.
Remove the bellows.
Attach the probe tip again.
Operate all gauging sensors with pneumatic extension with an air pressure of 0.8 ... 1.5 bar.
Use a one-way restrictor for each compressed air line to a gauging sensor.
Keep the length of the compressed air line between the sensor and the air valve as short as possible.
Pa respectively
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