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4
Operation
Function test
4
Operation
4.1
Function test
Prior to each use, carry out the following function check:
Version A: Tapping unit with integrated gas pin
• The tapping unit is correctly plugged into the terminal unit.
Version B: Tapping unit with rail clamp and NIST connection
• The tapping unit is locked firmly to the equipment rail.
Fig. 9: Pressure-relief valve of the tapping unit
20
GA 5752 3075 GB 13
DANGER!
Function check!
The product is used in the treatment of patients. Any restriction in the unit's
performance can result in serious complications in treatment.
Perform a complete function check every time before using the unit.
1 1
All versions:
• The product has been properly cleaned
and neither residue nor contamination are
present.
• The control valve can be easily turned.
• The overflow protection device and the
hydrophobic bacterial and viral filter are
mounted, fully functional and no residue is
trapped in it.
• The tube connectors are firmly secured and
tightly sealed, and no mechanical forces
are acting on the tubes.
• The plastic and rubber components are
in perfect condition and show no signs of
ageing.
• A septic fluid jar is connected to the tapping
unit.
• The pressure-relief valve (1) of the tapping
unit is not clogged.
• The vacuum controller is working.
• The pressure-relief valve (silicone washer)
of the tapping unit is pressed tight and cen-
tred on the sealing edge of the pressure-re-
lief valve seat.
• The vacuum controller generates a maxi-
mum value of 6.5 kPa when fully opened.
• When regulating up and down from zero
setting to the maximum and back, there are
no jumps in the vacuum.
• Close the control valve very gently only.
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