WIKA CPT-2 series User manual

Operating Instructions
Process pressure transmitter CPT-2x
Process pressure transmitter CPT-2x
Foundation Fieldbus
Ceramic measuring cell

2
Contents
WIKA Operating Instructions - Process pressure transmitter CPT-2x
Contents
1 About this document ............................................................................................................... 4
1.1 Function ........................................................................................................................... 4
1.2 Target group ..................................................................................................................... 4
1.3 Symbols used................................................................................................................... 4
2 For your safety ......................................................................................................................... 5
2.1 Authorised personnel ....................................................................................................... 5
2.2 Appropriate use................................................................................................................ 5
2.3 Warning about incorrect use............................................................................................. 5
2.4 General safety instructions............................................................................................... 5
2.5 EU conformity................................................................................................................... 5
2.6 NAMUR recommendations .............................................................................................. 6
2.7 Installation and operation in the USA and Canada ........................................................... 6
3 Product description ................................................................................................................. 7
3.1 Conguration.................................................................................................................... 7
3.2 Principle of operation........................................................................................................ 8
3.3 Supplementary cleaning procedures.............................................................................. 12
3.4 Packaging, transport and storage................................................................................... 13
4 Mounting................................................................................................................................. 14
4.1 General instructions ....................................................................................................... 14
4.2 Instructions for oxygen applications ............................................................................... 16
4.3 Ventilation and pressure compensation.......................................................................... 16
4.4 Process pressure measurement..................................................................................... 18
4.5 Level measurement........................................................................................................ 20
4.6 External housing ............................................................................................................ 21
5 Connecting to the bus system.............................................................................................. 22
5.1 Preparing the connection ............................................................................................... 22
5.2 Connecting..................................................................................................................... 23
5.3 Single chamber housing................................................................................................. 24
5.4 Double chamber housing ............................................................................................... 24
5.5 Double chamber housing Ex d ....................................................................................... 26
5.6 Housing IP66/IP68 (1 bar) .............................................................................................. 26
5.7 External housing with version IP68 (25 bar) ................................................................... 27
5.8 Switch-on phase............................................................................................................. 28
6 Set up with the display and adjustment module ................................................................ 30
6.1 Insert display and adjustment module............................................................................ 30
6.2 Adjustment system......................................................................................................... 31
6.3 Measured value indication.............................................................................................. 32
6.4 Parameter adjustment - Quick setup .............................................................................. 33
6.5 Parameter adjustment - Extended adjustment................................................................ 33
6.6 Saving the parameterisation data................................................................................... 44
7 Setup with PACTware............................................................................................................. 45
7.1 Parameter adjustment .................................................................................................... 45
7.2 Saving the parameterisation data................................................................................... 45
8 Diagnosis, asset management and service ........................................................................ 46
8.1 Maintenance .................................................................................................................. 46

3
Contents
WIKA Operating Instructions - Process pressure transmitter CPT-2x
8.2 Cleaning - hygienic connection with compression nut .................................................... 46
8.3 Diagnosis memory ......................................................................................................... 47
8.4 Asset Management function........................................................................................... 48
8.5 Rectify faults................................................................................................................... 50
8.6 Exchange process module on version IP68 (25 bar) ...................................................... 51
8.7 Instrument repair ............................................................................................................ 52
9 Dismount................................................................................................................................. 53
9.1 Dismounting steps.......................................................................................................... 53
9.2 Disposal ......................................................................................................................... 53
10 Supplement ............................................................................................................................ 54
10.1 Technical data ................................................................................................................ 54
10.2 Device communication Foundation Fieldbus.................................................................. 65
10.3 Calculation of the total deviation..................................................................................... 66
10.4 Practical example........................................................................................................... 67
10.5 Dimensions .................................................................................................................... 70
10.6 Trademark ...................................................................................................................... 80
Safety instructions for Ex areas
TakenoteoftheExspecicsafetyinstructionsforExapplications.
These instructions are attached as documents to each instrument
with Ex approval and are part of the operating instructions.
Editing status: 2020-05-12

4
1 About this document
WIKA Operating Instructions - Process pressure transmitter CPT-2x
1 About this document
1.1 Function
This instruction provides all the information you need for mounting,
connection and setup as well as important instructions for mainte-
nance,faultrectication,theexchangeofpartsandthesafetyofthe
user. Please read this information before putting the instrument into
operation and keep this manual accessible in the immediate vicinity
of the device.
1.2 Target group
This operating instructions manual is directed to trained personnel.
Thecontentsofthismanualmustbemadeavailabletothequalied
personnel and implemented.
1.3 Symbols used
Information, note, tip: This symbol indicates helpful additional infor-
mation and tips for successful work.
Note: This symbol indicates notes to prevent failures, malfunctions,
damage to devices or plants.
Caution: Non-observance of the information marked with this symbol
may result in personal injury.
Warning: Non-observance of the information marked with this symbol
may result in serious or fatal personal injury.
Danger: Non-observance of the information marked with this symbol
results in serious or fatal personal injury.
Ex applications
This symbol indicates special instructions for Ex applications.
• List
The dot set in front indicates a list with no implied sequence.
1 Sequence of actions
Numbers set in front indicate successive steps in a procedure.
Battery disposal
This symbol indicates special information about the disposal of bat-
teries and accumulators.

5
2 For your safety
WIKA Operating Instructions - Process pressure transmitter CPT-2x
2 For your safety
2.1 Authorised personnel
All operations described in this documentation must be carried out
onlybytrained,qualiedpersonnelauthorisedbytheplantoperator.
During work on and with the device, the required personal protective
equipment must always be worn.
2.2 Appropriate use
The CPT-2x is a pressure transmitter for process pressure and hydro-
static level measurement.
Youcannddetailedinformationabouttheareaofapplicationin
chapter "Product description".
Operational reliability is ensured only if the instrument is properly
usedaccordingtothespecicationsintheoperatinginstructions
manual as well as possible supplementary instructions.
2.3 Warning about incorrect use
Inappropriate or incorrect use of this product can give rise to applica-
tion-specichazards,e.g.vesseloverllthroughincorrectmounting
or adjustment. Damage to property and persons or environmental
contamination can result. Also, the protective characteristics of the
instrument can be impaired.
2.4 General safety instructions
This is a state-of-the-art instrument complying with all prevailing
regulations and directives.The instrument must only be operated in a
technicallyawlessandreliablecondition.Theoperatorisresponsi-
ble for the trouble-free operation of the instrument. When measuring
aggressive or corrosive media that can cause a dangerous situation
if the instrument malfunctions, the operator has to implement suitable
measures to make sure the instrument is functioning properly.
The safety instructions in this operating instructions manual, the na-
tional installation standards as well as the valid safety regulations and
accident prevention rules must be observed by the user.
For safety and warranty reasons, any invasive work on the device
beyond that described in the operating instructions manual may be
carried out only by personnel authorised by the manufacturer. Arbi-
traryconversionsormodicationsareexplicitlyforbidden.Forsafety
reasons,onlytheaccessoryspeciedbythemanufacturermustbe
used.
To avoid any danger, the safety approval markings and safety tips on
the device must also be observed.
2.5 EU conformity
ThedevicefullsthelegalrequirementsoftheapplicableEUdirec-
tives.ByaxingtheCEmarking,weconrmtheconformityofthe
instrument with these directives.

6
2 For your safety
WIKA Operating Instructions - Process pressure transmitter CPT-2x
The EU conformity declaration can be found on our homepage.
Duetothedesignofitsprocessttings,thedevicedoesnotsubject
of EU pressure device directive if it is operated at process pressures
≤200bar.
2.6 NAMUR recommendations
NAMUR is the automation technology user association in the process
industry in Germany. The published NAMUR recommendations are
acceptedasthestandardineldinstrumentation.
ThedevicefullstherequirementsofthefollowingNAMURrecom-
mendations:
• NE 21 – Electromagnetic compatibility of equipment
• NE53–Compatibilityofelddevicesanddisplay/adjustment
components
• NE107–Self-monitoringanddiagnosisofelddevices
For further information see www.namur.de.
2.7 Installation and operation in the USA and
Canada
This information is only valid for USA and Canada. Hence the follow-
ing text is only available in the English language.
Installations in the US shall comply with the relevant requirements of
the National Electrical Code (ANSI/NFPA 70).
Installations in Canada shall comply with the relevant requirements of
the Canadian Electrical Code.

7
3 Product description
WIKA Operating Instructions - Process pressure transmitter CPT-2x
3 Product description
3.1 Conguration
The scope of delivery encompasses:
• Instrument CPT-2x
The further scope of delivery encompasses:
• Documentation
– Quick setup guide CPT-2x
– Testcerticateforpressuretransmitters
– Instructions for optional instrument features
– Ex-specic"Safety instructions" (with Ex versions)
– Ifnecessary,furthercerticates
Information:
Optional instrument features are also described in this operating
instructions manual.The respective scope of delivery results from the
orderspecication.
This operating instructions manual applies to the following instrument
versions:
• Hardware from 1.0.0
• Software version from 1.2.0
Note:
Youcanndthehardwareandsoftwareversionoftheinstrumentas
follows:
• On the type plate of the electronics module
• In the adjustment menu under "Info"
Thetypelabelcontainsthemostimportantdataforidenticationand
use of the instrument:
Scope of delivery
Scope of this operating
instructions
Type label

8
3 Product description
WIKA Operating Instructions - Process pressure transmitter CPT-2x
1
5
6
7
4
2
3
MWP :
Fig. 1: Layout of the type label (example)
1 Instrument type
2 Field for approvals
3 Technical data
4 Product code
5 Serial number of the instrument
6 Symbol of the device protection class
7 ID numbers, instrument documentation
3.2 Principle of operation
CPT-2x is suitable for applications in virtually all industries. It is used
for the measurement of the following pressure types.
• Gauge pressure
• Absolute pressure
• Vacuum
Measured products are gases, vapours and liquids.
Dependingontheprocessttingandmeasurementsetup,measured
products can be also viscous or contain abrasive substances.
The CPT-2x is suitable for the measurement of the following process
variables:
• Process pressure
• Level
Application area
Measured products
Measured variables

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3 Product description
WIKA Operating Instructions - Process pressure transmitter CPT-2x
Fig. 2: Process pressure measurement CPT-2x
Sensor element is the measuring cell with robust ceramic diaphragm.
Theprocesspressuredeectstheceramicdiaphragmandcausesa
capacitance change in the measuring cell. This capacitance change
is converted into an electrical signal and output as measured value
via the output signal.
16 µm
1
2
3
Fig. 3: Conguration of the ceramic measuring cell
1 Process diaphragm
2 Glass joint
3 Base element
Themeasuringcellisavailableintwosizes:ø28mmandø17.5mm.
Temperature sensors in the ceramic diaphragm and on the ceramic
bodyoftheø28mmmeasuringcellorontheelectronicsofthe
ø17.5mmmeasuringcelldetectthecurrentprocesstemperature.
The temperature value is output via:
• The display and adjustment module
• The current output or the digital signal output
Even extreme jumps in process temperature are immediately
detectedbytheø28mmmeasuringcell.Thevaluesintheceramic
diaphragm are compared with those on the ceramic base body. Within
a few measuring cycles, the intelligent sensor electronics compen-
sates for otherwise unavoidable measurement deviations caused by
temperature shocks in the range. Depending on the adjusted damp-
ing, these cause only slight and brief changes in the output signal.
Measuring system pres-
sure
Measuring system tem-
perature

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3 Product description
WIKA Operating Instructions - Process pressure transmitter CPT-2x
The measuring cell design depends on the selected pressure type.
Relative pressure: the measuring cell is open to the atmosphere.
The ambient pressure is detected in the measuring cell and compen-
sated.Itthushasnoinuenceonthemeasuredvalue.
Absolute pressure: the measuring cell contains vacuum and is
encapsulated.The ambient pressure is not compensated and does
henceinuencethemeasuredvalue.
The following presentations show examples for the installation of the
ceramicmeasuringcellintotheprocessttingandthedierentseal
concepts.
The recessed installation is particularly suitable for applications with
gases, vapours and clear liquids.The measuring cell seal is posi-
tioned laterally as well as in addition in front.
1
2
5
6
3
4
Fig. 4: Recessed installation of the measuring cell (example: manometer con-
nection G½)
1 Measuring cell
2 Seal for the measuring cell
3 Additional, front seal for measuring cell
4 Diaphragm
5 Process tting
6 Seal for the process tting
Thefront-ushinstallationisparticularlysuitableforapplicationswith
viscous and abrasive media and in case of buildup.The measuring
cell seal is positioned laterally.
Pressure types
Seal concepts
Recessed installation
Front-ushmountingwith
single seal

11
3 Product description
WIKA Operating Instructions - Process pressure transmitter CPT-2x
2
3
4
1
5
Fig. 5: Front-ush installation of the measuring cell (example: thread G1½)
1 Seal for the process tting
2 Measuring cell
3 Seal for the measuring cell
4 Process tting
5 Diaphragm
Thecompletelyfront-ushmountingisparticularlysuitableforap-
plicationsinthepaperindustry.Thediaphragmisinthepulpow,is
hence cleaned and protected against buildup.
1
2
3
4
5
Fig. 6: Front-ush installation of the measuring cell (example: M30 x 1.5)
1 Measuring cell
2 Seal for the measuring cell
3 Seal for the process tting
4 Process tting
5 Diaphragm
Thefront-ushinstallationisparticularlysuitableforapplicationswith
viscous media.The additional, front sealing protects the glass joint
of the measuring cell against chemical attack and the measuring cell
electronicsagainstdiusionofaggressivegasesfromtheprocess.
1
2
3
45
Fig. 7: Front-ush installation of the measuring cell with double seal (example:
ange connection with extension)
1 Measuring cell
2 Seal for the measuring cell
3 Process tting
4 Additional, front seal for measuring cell
5 Diaphragm
Completelyfront-ush
mounting with single seal
Front-ushmountingwith
double seal

12
3 Product description
WIKA Operating Instructions - Process pressure transmitter CPT-2x
Thefront-ush,hygienicinstallationofthemeasuringcellisparticu-
larly suitable for food applications.The sealings are installed gap-free.
The form seal of the measuring cell protects also the glass joint.
1
2
3
4
5
Fig. 8: Hygienic installation of the measuring cell (example: hygienic tting with
compression nut)
1 Measuring cell
2 Form seal for the measuring cell
3 Gap-free seal for process tting
4 Process tting
5 Diaphragm
Thefront-ush,hygienicinstallationofthemeasuringcellacc.to3A
is particularly suitable for food applications. The sealings are installed
gap-free.The additional front sealing for the measuring cell protects
alsotheglassjoint.Aholeintheprocessttingisusedforleakage
detection.
1
62
3
4
5
Fig. 9: Hygienic installation of the measuring cell acc. to 3-A (example: Clamp
connection)
1 Measuring cell
2 Seal for the measuring cell
3 Process tting
4 Additional, front seal for measuring cell
5 Diaphragm
5 Hole for leakage detection
3.3 Supplementary cleaning procedures
The CPT-2x is also available in the version "Oil, grease and silicone-
free" or cleaning for paint compatible version (LABS).These instru-
ments have passed through a special cleaning procedure to remove
oil, grease and paint-wetting impairment substances (PWIS).
The cleaning is carried out on all wetted parts as well as on surfaces
accessible from outside.To keep the purity level, the instruments are
immediately packed in plastic foil after the cleaning process.The
purity level remains as long as the instrument is kept in the closed
original packaging.
Installation in hygienic
tting
Installation in hygienic
ttingacc.to3-A

13
3 Product description
WIKA Operating Instructions - Process pressure transmitter CPT-2x
Caution:
The CPT-2x in these versions must not be used in oxygen applica-
tions. For this purpose, devices in the special version "Resistance to
Internal Ignition in oxygen operation according to BAM certication"
are available.
3.4 Packaging, transport and storage
Your instrument was protected by packaging during transport. Its
capacity to handle normal loads during transport is assured by a test
based on ISO 4180.
The packaging consists of environment-friendly, recyclable card-
board. For special versions, PE foam or PE foil is also used. Dispose
of the packaging material via specialised recycling companies.
Transport must be carried out in due consideration of the notes on the
transport packaging. Nonobservance of these instructions can cause
damage to the device.
The delivery must be checked for completeness and possible transit
damage immediately at receipt. Ascertained transit damage or con-
cealed defects must be appropriately dealt with.
Up to the time of installation, the packages must be left closed and
stored according to the orientation and storage markings on the
outside.
Unless otherwise indicated, the packages must be stored only under
the following conditions:
• Not in the open
• Dry and dust free
• Not exposed to corrosive media
• Protected against solar radiation
• Avoiding mechanical shock and vibration
• Storage and transport temperature see chapter "Supplement -
Technical data - Ambient conditions"
• Relative humidity 20 … 85 %
With instrument weights of more than 18 kg (39.68 lbs) suitable and
approved equipment must be used for lifting and carrying.
Packaging
Transport
Transport inspection
Storage
Storage and transport
temperature
Lifting and carrying

14
4 Mounting
WIKA Operating Instructions - Process pressure transmitter CPT-2x
4 Mounting
4.1 General instructions
Note:
For safety reasons, the instrument must only be operated within the
permissibleprocessconditions.Youcannddetailedinformationon
the process conditions in chapter "Technical data" of the operating
instructions or on the type label.
Hence make sure before mounting that all parts of the instrument ex-
posed to the process are suitable for the existing process conditions.
These are mainly:
• Active measuring component
• Processtting
• Process seal
Process conditions in particular are:
• Process pressure
• Process temperature
• Chemical properties of the medium
• Abrasionandmechanicalinuences
Protect your instrument against moisture ingress through the following
measures:
• Use a suitable connection cable (see chapter "Connecting to
power supply")
• Tighten the cable gland or plug connector
• Lead the connection cable downward in front of the cable entry or
plug connector
This applies mainly to outdoor installations, in areas where high
humidity is expected (e.g. through cleaning processes) and on cooled
or heated vessels.
Note:
Makesurethatthedegreeofcontaminationspeciedinchapter
"Technical data" meets the existing ambient conditions.
Note:
Make sure that during installation or maintenance no moisture or dirt
can get inside the instrument.
To maintain the housing protection, make sure that the housing lid is
closed during operation and locked, if necessary.
Deviceswiththreadedttingarescrewedintotheprocessttingwith
a suitable wrench via the hexagon.
See chapter "Dimensions"forwrenchsize.
Process conditions
Protection against mois-
ture
Screwing in

15
4 Mounting
WIKA Operating Instructions - Process pressure transmitter CPT-2x
Warning:
The housing or the electrical connection may not be used for screw-
ing in! Depending on the device version, tightening can cause dam-
age, e. g. to the rotation mechanism of the housing.
If there is strong vibration at the mounting location, the instrument
version with external housing should be used. See chapter "External
housing".
Thepermissibleprocesspressurerangeisspeciedby"MWP"(Maxi-
mum Working Pressure) on the type label, see chapter "Structure".
The MWP takes the element of the measuring cell and processing
ttingcombinationwiththeweakestpressureintoconsiderationand
mayappliedpermanently.Thespecicationreferstoareference
temperature of +20 °C (+68 °F). It also applies when a measuring cell
with a higher measuring range than the permissible pressure range of
theprocessttingisinstalledorder-related.
In order to prevent damage to the device, a test pressure may only
exceedthespeciedMWPbrieyby1.5timesatreferencetempera-
ture.Thepressurestageoftheprocessttingaswellastheoverload
resistance of the measuring cell are taken into consideration here
(see chapter "Technical Data").
Inaddition,atemperaturederatingoftheprocesstting,e.g.with
anges,canlimitthepermissibleprocesspressurerangeaccording
to the respective standard.
The permissible process pressure range is stated on the type label.
The instrument should only be operated with these pressures if the
mountingaccessoryusedalsofullsthesevalues.Thisshouldbeen-
suredbysuitableanges,weldedsockets,tensionringswithClamp
connections, sealings, etc.
Higher process temperatures often mean also higher ambient
temperatures. Make sure that the upper temperature limits stated in
chapter "Technical data" for the environment of the electronics hous-
ing and connection cable are not exceeded.
1
2
Fig. 10: Temperature ranges
1 Process temperature
2 Ambient temperature
Vibrations
Permissible process
pressure (MWP) - Device
Permissible process
pressure (MWP) - Mount-
ing accessory
Temperature limits

16
4 Mounting
WIKA Operating Instructions - Process pressure transmitter CPT-2x
4.2 Instructions for oxygen applications
Oxygen and other gases can be explosive when brought into contact
with oils, grease and plastics, so the following measures must also be
taken:
• All components of the system, e.g. measuring instruments, must
becleanedinaccordancewiththerequirementsofrecognized
regulations or standards
• Depending on the seal material, certain temperatures and pres-
sures must not be exceeded in oxygen applications, see chapter
"Technical data"
Danger:
Instruments for oxygen applications must be unpacked just before
mounting.Afterremovingtheprotectivecoveroftheprocesstting,
the label "O2"willbevisibleontheprocesstting.Penetrationofoil,
grease and dirt should be avoided. Danger of explosion!
4.3 Ventilation and pressure compensation
Thelterelementintheelectronicshousinghasthefollowingfunc-
tions:
• Ventilation of the electronics housing
• Atmospheric pressure compensation (with relative pressure meas-
uring ranges)
Caution:
Thelterelementcausesatime-delayedpressurecompensation.
When quickly opening/closing the housing cover, the measured value
can change for approx. 5 s by up to 15 mbar.
Foraneectiveventilation,thelterelementmustbealwaysfreefrom
buildup.Incaseofhorizontalmounting,turnthehousingsothatthe
lterelementpointsdownwardaftertheinstrumentisinstalled.This
provides better protection against buildup.
Caution:
Donotuseahigh-pressurecleaner.Thelterelementcouldbedam-
aged, which would allow moisture into the housing.
Thefollowingparagraphsdescribehowthelterelementisarranged
inthedierentinstrumentversions.
Oxygen applications
Filter element - Function

17
4 Mounting
WIKA Operating Instructions - Process pressure transmitter CPT-2x
1 2 3
6
6
6 6
6
5
4
Fig. 11: Position of the lter element
1 Plastic, stainless steel single chamber (precision casting)
2 Aluminium - single chamber
3 Stainless steel single chamber (electropolished)
4 Plastic double chamber
5 Aluminium - double chamber
6 Filter element
With the following instruments a blind plug is installed instead of the
lterelement:
• Instruments in protection IP66/IP68 (1 bar) - ventilation via capillar-
ies in non-detachable cable
• Instruments with absolute pressure
→ Turnthemetalringinsuchawaythatthelterelementpoints
downward after installation of the instrument.This provides better
protection against buildup.
1
2
Fig. 12: Position of the lter element - Ex-d version
1 Rotatable metal ring
2 Filter element
Instruments with absolute pressure have a blind plug mounted
insteadofthelterelement.
Filter element - Position
Filter element - Position
Ex-d version

18
4 Mounting
WIKA Operating Instructions - Process pressure transmitter CPT-2x
The Second Line of Defense (SLOD) is a second level of the process
separation in form of a gas-tight leadthrough in the housing neck,
preventing products from penetrating into the housing.
With these instruments, the process assembly is completely en-
capsulated. An absolute pressure measuring cell is used so that no
ventilation is required.
With relative pressure measuring ranges, the ambient pressure is
detected and compensated by a reference sensor in the electronics.
1
2
1
2
Fig. 13: Position of the lter element - gastight leadthrough
1 Filter element
2 Gas-tight leadthrough
1
Fig. 14: Position of the lter element - IP69K version
1 Filter element
Instruments with absolute pressure have a blind plug mounted
insteadofthelterelement.
4.4 Process pressure measurement
Keep the following in mind when setting up the measuring system:
• Mount the instrument above the measuring point
Possiblecondensationcanthendrainointotheprocessline.
Filter element - Position
Second Line of Defense
Filter element - Position
IP69K version
Measurement setup in
gases

19
4 Mounting
WIKA Operating Instructions - Process pressure transmitter CPT-2x
1
2
3
Fig. 15: Measurement setup for process pressure measurement of gases in
pipelines
1 CPT-2x
2 Blocking valve
3 Pipeline
Keep the following in mind when setting up the measuring system:
• Connect via a siphon
• Do not insulate the siphon
• Fill the siphon with water before setup
1
4
3
2
1
2
3
4
Fig. 16: Measurement setup for the process pressure measurement of gases in
pipelines
1 CPT-2x
2 Blocking valve
3 Siphon in U or circular form
4 Pipeline
A protective accumulation of water is formed through condensation
in the pipe bends. Even in applications with hot steam, a medium
temperature < 100 °C on the transmitter is ensured.
Measurement setup in
vapours

20
4 Mounting
WIKA Operating Instructions - Process pressure transmitter CPT-2x
Keep the following in mind when setting up the measuring system:
• Mount the instrument below the measuring point
Theeectivepressurelineisalwayslledwithliquidandgasbubbles
can bubble up to the process line.
3
1
2
Fig. 17: Measurement setup for the process pressure measurement of liquids in
pipelines
1 CPT-2x
2 Blocking valve
3 Pipeline
4.5 Level measurement
Keep the following in mind when setting up the measuring system:
• Mount the instrument below the min. level
• Donotmounttheinstrumentclosetothellingstreamoremptying
area
• Mount the instrument so that it is protected against pressure
shocks from the stirrer
Fig. 18: Measurement setup for the level measurement
Measurement setup in
liquids
Measurement setup