UMS T5 User Manual page 23

Service and maintenance
The pressure sensor diaphragm is inside the small hole on the
pressure sensor body (approx. 2 mm). It is very sensitive and
must never be touched! It can be destroyed even by slightest
contact! No contamination should get on the sealing and gasket.
Degas the cup
If the cup is completely dry just put the shaft in a beaker with
deionised or distilled water over night.
Do not fill any water inside the shaft! If water intrudes from inside
and outside bubbles are trapped inside the ceramic pores. But if
the water only intrudes from the outside and soaks into the inside
any air bubbles are pushed out.
1. Take the syringe with the
short rubber tube.
Pull up 10 ml of deionised or
distilled water.
Take care to avoid bubbles.
2. Remove all air from the
syringe.
Now block the tube with your
finger and pull up the syringe.
This creates vacuum inside the
syringe and dissolved gas is
released.
evacuated syringe to collect all
bubbles.
upright, unblock the tube and
remove all air. Repeat this
procedure
appear anymore.
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Turn the still
Hold the syringe
until no bubbles