WIKA CPP30 Operating Manual
Operating Instructions
Betriebsanleitung
Test Pump
Prüfpumpe
GB
D
Typ CPP30
Test Pump CPP30
Test Pump
CPP30
GB
Operating Instructions Test Pump Page 3 - 12
D
Betriebsanleitung Prüfpumpe Seite 13 - 22
WIKA Betriebsanleitung Hand-Held Thermometer2
WIKA Operating Instructions Test Pump
11044608.02 07/2006 D/GB
Test Pump
CPP30
Contents
Contents
1. Safety Instructions 4
2. Product Description 4
3. Mounting Instructions 5
4. Operation of the Test Pump 6
4.1 Generation of pressure 6
4.2 Generation of vacuum 8
5. Maintenance Instructions 10
6. Cause of fault 10
7. Technical Data 11
8. Order Data / Accessories 11
GB
Information
This symbol provides you with information, notes and tips.
Warning!
This Symbol warns you against actions that can cause
damage to persons or to the instrument.
11044608.02 07/2006 D/GB
WIKA Betriebsanleitung Hand-Held Thermometer 3
WIKA Operating Instructions Test Pump
Test Pump
CPP30
GB
1. Safety Instructions
Read these operating instructions carefully prior to operating
the pneumatic hand test pump CPP30. The pressure inside the
pump can be extremely high. Ensure that all pressure connections have been established correctly.
2. Product Description
Test pumps are used to generate pressures for checking, adjusting
and calibrating mechanical and electronic pressure measuring
instruments by comparative measurements. These pressure tests
may be carried out in laboratories, workshop or on site at the
measuring point.
If the instrument to be tested and a sufficiently accurate referencemeasuring instrument are connected up to the test pump, the
same pressure is applied to the two measuring instruments when
the pump is operated. By comparing the two measured values at
random pressure values, the accuracy can be verified or the
Instrument under test can be adjusted.
Despite its compact dimensions, the hand test pump model
CPP30 is easy to operate and allows for exact generation of the
required test pressures; a change-over switch enables the generation of vacuum as well. The pump is fitted with a fine adjustment
valve for the precise adjustment of pressures. The reference
instrument is screwed directly on to the top of the pump and the
unit under test is connected by means of the connection tube
incorporating an adapter 1/4" BSP female thread, contained in the
scope of delivery.
WIKA Betriebsanleitung Hand-Held Thermometer4
WIKA Operating Instructions Test Pump
11044608.02 07/2006 D/GB
Test Pump
CPP30
3. Mounting Instructions
The reference instrument is fitted to the upper side of the hand
test pump CPP30. Fingertight fastening of the reference instrument with the knurled nut is sufficient. The reference instrument
is sealed by the integral O-ring sealing gasket.
The unit under test is mounted to the end of the flexible tube.
Please use a suitable sealing gasket from the adapter set
purchased separately as an accessory. Tighten the connector to
prevent any leaks to a maximum torque of 15 Nm.
In order to adapt the different connection threads of the unit
under test, the test tube can be fitted with different adapters
from the optional set of adapters.
Do not use teflon tape, this may damage your test pump.
You can unscrew the tube and also directly attach the test
specimen with the same adapter to the pump (to minimize
volume of your test system, for more easy operating the
CPP30 pump).
GB
11044608.02 07/2006 D/GB
WIKA Betriebsanleitung Hand-Held Thermometer 5
WIKA Operating Instructions Test Pump
Test Pump
CPP30
GB
4. Operation of the Test Pump
(1) Pressure connector for refer-
ence instrument, G ½“
1
2
3
female rotating
(2) Fine adjustment valve
(3) Pressure relief valve
(4) Change-over switch for
4
pressure/vacuum generation
(5) Handles
(6) Adjustable knurled nut for
5
6
8 7
the adjustment of the
delivery rate of the pump
(7) Pressure connection for test
specimen, G ¼ “
(8) Test tube length 1 m
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”.
WIKA Betriebsanleitung Hand-Held Thermometer6
WIKA Operating Instructions Test Pump
11044608.02 07/2006 D/GB
Test Pump
CPP30
Operate the hand pump (5) until the approximate pressure has
been reached, but max. to 20 to 25 bar.
Turn the fine adjustment valve clockwise to increase the
pressure or anti-clockwise to decrease the pressure until the
requested test pressure has been reached precisely (to be read
on the reference measuring instrument).
If you have prepared at previous step a pressure of about
20 to 25 bar, with the fine adjustment valve (2) you can increase
the pressure now to 35 bar (up to 40 bar, depending on the volume
of the measuring circuit).
After increasing the pressure, the reading may slightly drop again
for about 30 seconds, which is caused by thermodynamic effects,
the tube connection and the sealing gaskets. If the pressure drop
does not come to a standstill, check the measuring circuit for
tightness.
Due to the low volume of each compression stroke of the hand
test pump, only small volume test specimens should be tested.
A pressure reduction is achieved by turning the fine adjustment
valve (2) counter-clockwise first and then by carefully opening
the relief valve (3).
GB
Never actuate the change-over valve when the hand test pump
is under pressure or vacuum! Actuate the change-over valve
only when the relief valve is open.
Remove the reference instrument or the test specimen only
when the relief valve (3) is open and no pressure is in the hand
test pump any more.
11044608.02 07/2006 D/GB
WIKA Betriebsanleitung Hand-Held Thermometer 7
WIKA Operating Instructions Test Pump
Test Pump
CPP30
GB
4.2 Generation of vacuum
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) clockwise up to the end
(“stop” can be felt).
Make sure that the adjustable knurled nut and counter nut (6)
are in such a position that the spring visible above the nut has
some clearance when the handles (5) are pressed together.
Carefully turn in the pressure relief valve (3) until the valve
closes. You will not notice any “hard stop”.
Operate the handles (5) smoothly and slowly until a vacuum of
max. -0.9 bar is reached.
Turn the fine adjustment valve (2) anti-clockwise to increase the
vacuum up to -0.95 bar. Turn this valve for fine adjustment.
After increasing the vacuum, the reading may slightly increase
again for about 30 seconds, which is caused by thermodynamic
effects, the tube connection and the sealing gaskets. If the
vacuum drop does not come to a standstill, check the measuring
circuit for tightness.
Due to the low volume of each compression stroke of the hand
test pump, only small volume test specimens should be tested.
WIKA Betriebsanleitung Hand-Held Thermometer8
WIKA Operating Instructions Test Pump
11044608.02 07/2006 D/GB
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