Delta-T Devices SWT5 User Manual page 25

The pressure sensor diaphragm is inside the small hole on the
pressure sensor body (approx.
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 the shaft with water from inside the shaft! If water intrudes
from both inside and outside then bubbles are trapped in the
ceramic pores. But if the water only intrudes from the outside and
soaks into the inside then 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.
SWT5 User Manual v2
2 mm). It is very sensitive and must
2. Remove all air from
syringe.
Now block the tube with your
finger and pull up the syringe.
This creates vacuum inside the
syringe and dissolved gas is
released. Turn the still evacuated
syringe to collect all bubbles.
Hold the syringe upright, unblock
the tube and remove all air.
Repeat this procedure until no
more bubbles appear.
Service and maintenance  25
the