Degas The Sensor Head - UMS Hyprop User Manual

Get ready to start a measuring campaign
4.2.3.2

Degas the sensor head

Avoid that the plug connector gets in contact with water.
Take care that the piston never recoils abruptly as this might
damage the pressure transducer (max. 3 bar)!
1. Take the syringe that belongs
to the sensor unit attachment.
Draw up 15 ml of water.
Degas the water as described
before and push out all air from
the syringe.
Fig. 22
2. Place the acrylic sensor head
attachment onto
head. The sensor head should
sit firmly on the O-Ring. Do not
attach the tube yet.
3.
attachment
water
syringe.
Fig. 23
Attach
vacuum syringe. Draw it up
until the black spacer snaps in.
Air
inside the syringe.
To
pressure transducer, please
securely hold the piston so it
the sensor
will
Release the spacers and allow
the piston to return slowly.
Only water should flow back
into the acrylic attachment.
Take off the tube and push the
assembled air out of the
syringe.
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Fill up the
with deionised
using the
the tube and
bubbles will assemble
avoid damaging
not suddenly
acrylic
droplet
the
the
recoil.