Installation and operation manual
EN
42
DRYPOINT
®
M eco control
7.1.6. Measuring the permeation rate
NOTE
The device is subject to operating pressure and energised
The device is subject to operating pressure and energised during the execution of maintenance
works
• Only the following described activities
The following prerequisites must be created for measuring the permeation rate – as a status evaluation for the membrane
itself
•
Procure a suitable volume flow measuring device in the range 10 – 100 l/minute (atmospheric) with connection
connecting hose (approx. 1 m) / plug-in connector with connection thread G1/4
• Set the DRYPOINT
®
M eco control to “Service Mode” operating method, Refer to 6.3.3 (the device interior will only be
provided with measuring gas flow)
Measuring process
• Screw out the blind plugs on the membrane dryer head
• Exiting purge air is reduced to depressurised
•
Screw in the connector G1/4 from the hose connector volume flow of the measuring device in the thread G1/4 in the
head
•
Hold close / adhere the purge air outlets
• Read out the measurement results
The connection in the head of the membrane dryer must be sealed again with the blind plugs after the measuring process
and the purge air outlet on the screen must be freed again. Subsequently reset the device in normal mode (Refer to 6.3.3.)
Recommended limiting values in l/minute: approx. 25% of the maximum purge air volume for DRYPOINT
®
M eco control
plus 5 l/minute (share of measuring gas flow).
