WIKA CPP 7000-X User manual

Comparison Test Pump, model CPP7000-X
GB
Vergleichsprüfpumpe, Typ CPP7000-X
DE
Comparison Test Pump, model CPP7000-X
Operating instructions

2 WIKA Operating Instruction, model CPP7000-X
GB
Comparison Test Pump, model CPP7000-X
Page
2 - 30
DE
Vergleichsprüfpumpe, Typ CPP7000-X
Seite
31 - 59
Further languages can be found at www.wika.com.
© 2017 WIKA Alexander Wiegand SE & Co. KG
All rights reserved.
WIKA® is a registered trademark in various countries.
Prior to starting any work, read the operating instructions!
Keep for later use!

Contents
WIKA Operating Instruction, model CPP7000-X 3
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1. General Information ............................................................................................................. 5
2. Short overview..................................................................................................................... 6
2.1 Overview ............................................................................................................................. 6
2.2 Description .......................................................................................................................... 6
2.3 Scope of delivery ................................................................................................................. 7
3. Safety .................................................................................................................................. 8
3.1 Explanation of symbols ........................................................................................................ 8
3.2 Intended use........................................................................................................................ 8
3.3 Improper use........................................................................................................................ 9
3.4 Personnel qualification....................................................................................................... 10
3.5 Personal protective equipment........................................................................................... 10
3.6 Labelling, safety marks ...................................................................................................... 11
3.6.1 Product label...................................................................................................................... 11
3.6.2 Symbols............................................................................................................................. 11
4. Design and Function.......................................................................................................... 12
5. Transport, packaging and storage...................................................................................... 13
5.1 Transport........................................................................................................................... 13
5.2 Packaging and storage ...................................................................................................... 13
6. Commissioning, operation ................................................................................................. 14
6.1 Preparation........................................................................................................................ 14
6.1.1 Setting up the device ......................................................................................................... 14
6.1.2 Connecting the test specimen and the reference instrument............................................... 15
6.1.3 Venting the system ............................................................................................................ 17
6.2 Operation........................................................................................................................... 18
6.2.1 Increasing the pressure...................................................................................................... 18
6.2.2 Decreasing the pressure.................................................................................................... 20
6.3 Disassembly ...................................................................................................................... 20
7. Faults................................................................................................................................. 21
8. Maintenance, cleaning and servicing ................................................................................. 23
8.1 Maintenance...................................................................................................................... 23
8.1.1 Wear parts......................................................................................................................... 23
8.2 Changing the hydraulic oil.................................................................................................. 23
8.2.1 Removing hydraulic oil....................................................................................................... 23
8.2.2 Filling in of hydraulic oil ...................................................................................................... 24
8.2.3 Venting of the system (after complete filling only) ............................................................... 24

Contents
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8.3 Cleaning ............................................................................................................................ 24
9. Dismounting, return and disposal....................................................................................... 25
9.1 Dismounting ...................................................................................................................... 25
9.2 Return................................................................................................................................ 26
9.3 Disposal............................................................................................................................. 26
10. Specifications .................................................................................................................... 27
11. Accessories....................................................................................................................... 28
Declarations of conformity can be found online at www.wika.com.

1. General Information
WIKA Operating Instruction, model CPP7000-X 5
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1. General Information
The comparison test pump model CPP7000-X described in the operating instructions has been
designed and manufactured using state-of-the-art technology. All components are subject to
stringent quality and environmental criteria during production. Our management systems are
certified to ISO 9001 and ISO 14001.
These operating instructions contain important information on handling the comparison test pump
CPP7000-X. Working safely requires that all safety instructions and work instructions are
observed.
Observe the relevant local accident prevention regulations and general safety regulations for
the instrument´s range of use.
The operating instructions are part of the instrument and must be kept in the immediate vicinity
of the instrument and readily accessible to skilled personnel at any time. Pass the operating
instructions on to the next operator or owner of the instrument.
Skilled personnel must have carefully read and understood the operating instructions, prior to
beginning any work.
The general terms and conditions, contained in the sales documentation, shall apply.
Subject to technical modifications.
Further information:
- Internet address: www.wika.de / www.wika.com
- Relevant data dheet: CT 91.13
- Application consultant: Tel.: [phone]
Fax: [phone]
[e-mail]

2. Design and function or Short overview
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2. Short overview
2.1 Overview
1.Connection for device under test or reference instrument
2.Spindle pump
3.Initial pressure pump
2.2 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, workshops or on site at the measuring point.
The comparison test pump model CPP7000-X is equipped with two connections for the test
specimen and the reference instrument which can be used in any order. If the instrument to be
tested and a sufficiently accurate reference measuring instrument are connected 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. First the pressure is set via an integrated initial pressure
pump. For fine adjustment by approaching the measuring points precisely an adjustable volume with
precision spindle is available. Another important feature of the pumps is the rotating spindle that only
runs inside the body of the pump. This eliminates the negative effect of a bending torque on a
spindle turning outside the body and offers the advantage, especially for use in the field, that the
dimensions of these pumps do not change during operation due to the spindle turning.

2. Short overview
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Information
The term ”reference instrument” in this manual relates to each kind of
pressure measuring instrument like: spring manometer, electrical pressure
measuring instrument and pressure transmitters with electrical outlet. The
comparison test pump is only as precise as the used reference instrument.
The reference instrument should be recalibrated in regular intervals to
guarantee the specifications of the manufacturer.
2.3 Scope of delivery
■Comparison test pump model CPP7000-X
with priming pump for filling, spindle pump for pressure generation and fine pressure
adjustment
■Two test connections with M16 x 1.5 male thread, freely rotating, exchangeable, with sealing
cone
■Sebacate oil in plastic bottle, content 0.5 litre
■3 handles
■Operating Instruction in German and English language
■Dust protection cover
Cross-check scope of delivery with delivery note.

3. Safety
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3. Safety
3.1 Explanation of symbols
DANGER!
... indicates a directly dangerous situation resulting in serious injury
or death, if not avoided.
WARNING!
... indicates a potentially dangerous situation that can result in serious injury or
death, if not avoided.
CAUTION!
... indicates a potentially dangerous situation that can result in light injuries or
damage to property or the environment, if not avoided.
Information
... points out useful tips, recommendations and information for efficient and
trouble -free operation.
3.2 Intended use
The comparison test pump model CPP7000-X is 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, workshops or on site at the
measuring point.
This instrument is not permitted to be used in hazardous areas!
The instrument has been designed and built solely for the intended use described here, and may
only be used accordingly.
The technical specifications contained in these operating instructions must be observed. Improper
handling or operation of the instrument outside of its technical specifications requires the instrument
to be taken out of service immediately and inspected by an authorised WIKA service engineer.
If the equipment is damaged and might no longer operate safely, then it should be taken out of use
and securely marked in such a way so that isn't used again.
Operator safety may be at risk if:
■There is visible damage to the device
■The device is not working as specified
■The device has been stored under unsuitable conditions for an extended period of time.

3. Safety
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If there is any doubt, please return the device to the manufacturer for repair or maintenance.
The comparison test pump model CPP7000-X always has to be handled with the care required for
an precision instrument (protect from humidity, impacts and extreme temperatures).
The device must be handled with care (don't throw, hit, etc.) and protect them from contamination.
By no means apply any force to the operating elements of the comparison test pump model
CPP7000-X.
Trouble-free operation and reliability of the device can only be guaranteed so long as the conditions
stated under 6.1.1 Setting up the device are taken into consideration.
The manufacturer shall not be liable for claims of any type based on operation contrary to the
intended use.
Information
Material Safety Data Sheet for the corresponding medium can be found on
the website www.wika.de / www.wika.com or contact your local distributor.
WARNING!
Use only those accessories such as thread adapter, which is suitable for the
pressure range and the medium used.
WARNING!
For trouble-free operation and reliability of the comparison test pump model
CPP7000-X a frequently service is necessary. This kind of service can only
performed by authorized WIKA service engineer. The service interval is three
years.
3.3 Improper use
WARNING!
Injuries through improper use
Improper use of the instrument can lead to hazardous situations and injuries.
Refrain from unauthorised modifications to the instrument.
Do not use the instrument within hazardous areas.
Do not exceed maximum pressure 7,000 bar (100,000 psi)!
Use only original sealings in the device!
Return the device to the manufacturer for any repair or maintenance!
Any use beyond or different to the intended use is considered as improper use.

3. Safety
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3.4 Personnel qualification
WARNING!
Risk of injury should qualification be insufficient
Improper handling can result in considerable injury and damageto equipment.
The activities described in these operating instructions may only be carried
out by skilled personnel who have the qualifications described below.
Skilled personnel
Skilled personnel, authorised by the operator, are understood to be personnel who, based on
their technical training, knowledge of measurement and control technology and on their
experience and knowledge of country-specific regulations, current standards and directives,
are capable of carrying out the work described and independently recognising potential
hazards.
3.5 Personal protective equipment
The personal protective equipment is designed to protect the skilled personnel from hazards that
could impair their safety or health during work. When carrying out the various tasks on and with
the instrument, the skilled personnel must wear personal protective equipment.
The requisite personal protective equipment must be provided by the operating company.
Wear safety goggles!
Protect eyes from flying particles and liquid splashes.
WARNING!
During the operation, cleaning or maintenance at the comparison test pump it
is necessary to wear safety goggles.
Please observe also the additional notes in the individual chapters of this
operating instruction.

3. Safety
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3.6 Labelling, safety marks
3.6.1 Product label
The product label is located on the rear of the comparison test pump model CPP7000-X.
1. Product name
2. Model
3. Pressure range
4. Serial No.
5. Manufacturer
6. Order Number
7. Medium
8. Date of manufacture
3.6.2 Symbols
Before mounting and commissioning the instrument, ensure you read the operating
instructions!
CE, Communauté Européenne
Instruments bearing this mark comply with the relevant European directives.
1
2
3
4
5
6
7
8

4. Design and Function
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4. Design and Function
View from above:
Front View:
1. Connection for device under test or
reference instrument
2. Water level
3. Initial pressure pump
4. Spindle pump
5. Screwed drain plug for tank
6. Connection for device under test or
reference instrument
7. High-pressure shut-off valve (HP)
8. Low-pressure shut-off valve (LP)
9. Adjustable Feet’s

5. Transport, packaging and storage
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5. Transport, packaging and storage
5.1 Transport
Check the comparison test pump model CPP7000-X for any damage that may have been caused
by transport.
Obvious damage must be reported immediately.
CAUTION!
Damage through improper transport
With improper transport, a high level of damage to property canoccur.
When unloading packed goods upon delivery as well as during internal
transport, proceed carefully and observe the symbols on the packaging.
With internal transport, observe the instructions in chapter 5.2 Packaging
and storage.
If the instrument is transported from a cold into a warm environment, the formation of condensation
may result in instrument malfunction. Before putting it back into operation, wait for the instrument
temperature and the room temperature to equalise.
5.2 Packaging and storage
Do not remove packaging until just before mounting.
Keep the packaging as it will provide optimum protection during transport (e.g. change in installation
site, sending for repair).
Permissible conditions at the place of storage:
■Storage temperature: 15 ... 35 °C
■Humidity: 35 ... 85 % relative humidity (no condensation)
Avoid exposure to the following factors:
■Direct sunlight or proximity to hot objects
■Mechanical vibration, mechanical shock (putting it down hard)
■Soot, vapour, dust and corrosive gases
■Hazardous environments, flammable atmospheres

6. Commissioning, operation
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6. Commissioning, operation
Personnel: Skilled personnel
Protective equipment:Wear safety goggles
Tools: Open-ended spanner SW 36
Only use original parts (see chapter 11 Accessories)
6.1 Preparation
CAUTION!
Before every operation it has to be checked, that all control elements of the
comparison test pump model CPP7000-X are fixed correctly and there are no
visible damages at the instrument.
6.1.1 Setting up the device
■Set up the comparison test pump on a solid surface. If it is not resting on a solid foundation
or is subject to vibrations, measurements could be affected. This should be avoided.
■The water level should be used to align the device. Using the adjustable feeds, position the
device so that it is horizontal.
■The oil reservoir may need to be filled, or refilled (volume 250 ml). For this purpose, the
locking screw with the oil filling symbol on top of the basement must be opened. Special oil
must be used for refilling (0,5 litre supplied, or available as accessory). The system must be
vented before initial filling, or after a complete oil change. For this purpose, please proceed
according section 8.2 Changing the hydraulic oil.
■Place the star handle with knobs onto the spindle pump. Ensure that the spring-loaded thrust
pad engages into the star handle bushing.
■We recommend unscrewing the spindle pump completely when you start to record
measurement values, (turning anticlockwise) to allow enough volume for measurements.
The outlet valve must be opened during this process.

6. Commissioning, operation
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6.1.2 Connecting the test specimen and the reference instrument
WARNING!
Before releasing the closure plugs in the test connections, ensure that the
system (spindle pump turned back completely counter-clockwise, open
high-pressure shut-off valve, open low-pressure shut-off valve) is depressurised.
(see Figure 6.2.1-1 Closing Direction of the valves)
Information
The closure plugs serve to seal off the test connections from oil leaks, or from any
penetrating contamination. It may not be pressurized under any circumstances.
■The test connections have a knurled nut with a G ¾ female thread, in which various threaded
connecting adapters may be screwed into. 2 threaded adapters with M16 x 1.5 male thread
are included in the scope of delivery as standard equipment:
CAUTION!
Max. torque for device under test and reference instrument and connection
columns:
< 4000 bar 30 Nm
> 4000 bar 45 Nm
Please check also the labeling on the instrument!
Information
Connecting adapters with M20 x 1.5 male thread and 9/16-18UNF male thread with
sealing cone and a connecting adapter with G ½ female thread with an O-ring seal
are available as accessories. (see chapter 11 Accessories)
DANGER!
The maximum pressure permitted with the use of the G ½ female adapter with an
O-ring seal is limited to 1600 bar (23,200 psi).

6. Commissioning, operation
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■First, install the matching threaded adapters on your device under test and reference
instrument.
■Then connect the device under test and the reference instrument, including the installed
threaded adapters, to the knurled nut of the test connections at the test pump. The free-
running knurled nut enables the orientation of the instruments. Firmly tighten the knurled nut
and the threaded adapter with an open-ended spanner in the desired clamping position. The
wrench width for the knurled nut and the threaded adapter is SW 36.
Information
Additional sealing elements are not required. Sealing is performed purely metallic
using a sealing cone.
Threaded adapter
Knurled nut

6. Commissioning, operation
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6.1.3 Venting the system
After the clamping of the test specimen and the reference instrument, air may be trapped in the
system. The system may be vented before beginning with calibration using the following procedure:
■The test specimen and the reference instrument must be clamped
■Close the low-pressure shut-off valve
■Open the high-pressure shut-off valve
■Generate a pressure of approximately 50 bar (725 psi) using the initial pressure pump
■Close the high-pressure shut-off valve
■Increase the pressure with the spindle pump until just below the final value of the measuring
range of the test specimen or of the reference instrument (the smaller pressure range is the
decisive factor).
■Carefully open the high-pressure shut-off valve, any trapped air will escape into the tank
■Open the low-pressure shut-off valve
This procedure may need to be repeated several times in order to remove all trapped air.
Opening the high-pressure shut-off valve without first turning out the spindle pump in
counterclockwise direction in order to relieve the system on initial pressure is permitted only with the
venting procedure described herein.
WARNING!
After generating initial pressure, the high-pressure shut-off valve must always be
closed before pressure is increased using the spindle pump. An integrated safety
overflow valve (adjusted to approximately 100 bar (1,450 psi)) additionally protects
the low-pressure circulation from any errors on the operator’s part.
The device is now ready to use.

6. Commissioning, operation
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6.2 Operation
WARNING!
The maximum permissible pressure for the comparison test pump model
CPP7000-X is 7,000 bar (100,000 psi). Higher pressures may damage the pump.
The reference instrument, device under test and any connecting tubes that are
used must not be subjected to pressures above the maximum permissible level.
DANGER!
Do not apply higher pressure than the maximum permitted pressure of the used
accessories. The original accessories are marked with the maximum permitted
pressure.
6.2.1 Increasing the pressure
Information
We recommend unscrewing the spindle pump completely before you start to record
measurement values, (turning anticlockwise) to allow enough volume for
measurements. The low-pressure and high-pressure shut-off valve must be opened
during this process.
■The system must first be filled with oil and pre-compressed.
For this, the valves must be in the basic position:
oLow-pressure shut-off valve closed
oHigh-pressure shut-off valve opened
Figure 6.2.1-1 Closing Direction of the valves

6. Commissioning, operation
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■Then run the initial pressure pump for several strokes. The pressure increases to a maximum
of about 50 bar (725 psi) (depending on the volume of the connected instruments).
CAUTION!
Before generating initial pressure, check if the user handles are tightened
(e. g. black plastic topping of the priming pump).
Before generating initial pressure, check if the connection to your device
under test and reference instrument is tightened.
See max. torque for connection and test item column. (see chapter 6.1.2)
■The high-pressure shut-off valve must be closed after pre-pressure generation.
■After that, increase the pressure resp. make a fine adjustment by turning the built-in spindle
pump clockwise to approach the calibration points.
WARNING!
After generating initial pressure, the high-pressure shut-off valve must always be
closed before pressure is increased using the spindle pump. An integrated safety
overflow valve (adjusted to approximately 100 bar (1,450 psi)) additionally protects
the low-pressure circulation from any errors on the operator’s part.
■Now you can compare the indication of the test specimen with the reference instrument at
each calibration point.
Information
If small amounts of air are compressed in the system together with medium, the test
pressure that has been generated first drops off slightly. After this it must be
readjusted.
A longer waiting time before stable operating conditions are reached should be
expected at higher pressures than at lower pressures.

6. Commissioning, operation
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6.2.2 Decreasing the pressure
■Turn the spindle pump anticlockwise to release pressure in the system.
■If the pressure is close to the next test level, make the fine adjustment with the spindle pump.
■Once the spindle pump is turned back completely anticlockwise, only the initial pressure
remains in the system.
■Now the high-pressure shut-off valve can be opened.
WARNING!
Open the high-pressure shut-off valve only if the pressure in the system has been
relieved to initial pressure. For this purpose, always first turn the spindle pump
back completely anticlockwise.
■The initial pressure can be further relieved by carefully opening the low-pressure shut-off
valve.
■By completely opening the low-pressure shut-off valve, the initial pressure will completely
escape back into the tank.
■The system is now completely relieved.
WARNING!
Even if you wish to relieve the system from a high pressure completely down to
zero immediately, the spindle pump must first be completely turned back
anticlockwise. Then open the high-pressure shut-off valve, and subsequently open
the low-pressure shut-off valve. The initial pressure then escapes completely into
the tank. The system is now completely relieved.
6.3 Disassembly
■After all pressure points have been recorded, ensure that the system is depressurised
(see chapter 6.2.2 Decreasing the pressure).
■Now the device under test and the reference instrument can be removed from the test
connections.
DANGER!
Do not disconnect the device under test or the reference instrument until the
pressure in the comparison test pump has not been completely released.
■The handle bars of the star handle can now be unscrewed from the spindle pump.