Get ready to start a measuring campaign
25/92
6. Now insert the threaded side
of the Tensiometer shaft
completely into the tube of the
vacuum syringe.
Roll up the O-ring so the shaft
is securely fixed.
Fig. 20
7. Now pull up the vacuum
syringe until both spacers snap
in.
Turn around the syringe to
collect all bubbles, but do not
tap on the syringe!
Release the spacers and allow
water to flow into the shaft.
8. Carefully remove the tube
from the syringe nozzle and
push out all air from the
syringe. There should be no air
inside the tube before inserting
the shaft again.
Fig. 21
In case fill in some drops of
water into the tube with the
syringe.
9. Reattach the vacuum syringe
and pull it up until the spacers
snap in.
Leave both syringes on the
shaft.
Do the same procedure with the
second shaft.
Black spacers
Leave both syringe assemblies for at least 2 hours (the longer the
better). Pay attention that there is enough water in the reservoir of
the syringes.
