WIKA CPP30 Benutzerhandbuch
Seite 6
WIKA Betriebsanleitung Hand-Held Thermometer
6
GB
11044608.02 07/2006 D/GB
WIKA Operating Instructions Test Pump
Test Pump
CPP30
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4. Operation of the Test Pump
4.1 Generation of pressure
First, check wether the change-over valve (4) has to be actu-
ated (see sticker on the device). For this purpose use a pen or a
small screw-driver. The encasement of the switch is intended to
help prevent unintentional actuation.
Never actuate the change-over valve (4) when the hand test
pump is under pressure or vacuum! Actuate the change-over
valve only when the relief valve is open.
Please make sure that the pressure relief valve (3) is not closed
completely.
Turn the fine adjustment valve (2) anticlockwise up to the end
(smooth “stop” can be felt).
Carefully turn in the pressure relief valve (3) until the valve
closes. You will not notice any “hard stop”.
(1) Pressure connector for refer-
ence instrument, G ½“
female rotating
(2) Fine adjustment valve
(3) Pressure relief valve
(4) Change-over switch for
pressure/vacuum generation
(5) Handles
(6) Adjustable knurled nut for
the adjustment of the
delivery rate of the pump
(7) Pressure connection for test
specimen, G ¼ “
(8) Test tube length 1 m