Endress+Hauser Cerabar S PMC71 User manual

Products Solutions Services
BA00295P/00/EN/18.16
71335661
valid from Software version
04.01.zz
Operating Instructions
Cerabar S PMC71, PMP71,
PMP75
Process pressure measurement

Cerabar S PMC71, PMP71, PMP75 with PROFIBUS PA
2Endress+Hauser
A0023555
Make sure the document is stored in a safe place such that it is always available when
working on or with the device.
To avoid danger to individuals or the facility, read the "Basic safety instructions" section
carefully, as well as all other safety instructions in the document that are specific to
working procedures.
The manufacturer reserves the right to modify technical data without prior notice. Your
Endress+Hauser Sales Center will supply you with current information and updates to these
Instructions.
Order code:
Ext. ord. cd.:
Ser. no.:
www.endress.com/deviceviewer Endress+Hauser
Operations App
XXXXXXXXXXXX
XXXXX-XXXXXX
XXX.XXXX.XX
Serial number
1.
3.
2.

Cerabar S PMC71, PMP71, PMP75 with PROFIBUS PA
Endress+Hauser 3
Table of contents
1 Document information . . . . . . . . . . . . . . 4
1.1 Document function . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Symbols used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3 Registered trademarks . . . . . . . . . . . . . . . . . . . . . . . 5
1.4 Terms and abbreviations . . . . . . . . . . . . . . . . . . . . . 6
1.5 Turn down calculation . . . . . . . . . . . . . . . . . . . . . . . 7
2 Basic safety instructions . . . . . . . . . . . . . 8
2.1 Requirements concerning the staff . . . . . . . . . . . . . 8
2.2 Designated use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 Workplace safety . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.4 Operational safety . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.5 Hazardous area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.6 Product safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3 Identification . . . . . . . . . . . . . . . . . . . . .10
3.1 Product identification . . . . . . . . . . . . . . . . . . . . . . 10
3.2 Device designation . . . . . . . . . . . . . . . . . . . . . . . . 10
3.3 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.4 Certificates and approvals . . . . . . . . . . . . . . . . . . 12
4 Installation . . . . . . . . . . . . . . . . . . . . . . .13
4.1 Incoming acceptance, transport, storage . . . . . . 13
4.2 Installation conditions . . . . . . . . . . . . . . . . . . . . . 13
4.3 General installation instructions . . . . . . . . . . . . . 14
4.4 Installation instructions . . . . . . . . . . . . . . . . . . . . 14
4.5 Post-installation check . . . . . . . . . . . . . . . . . . . . . 25
5 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.1 Connecting the device . . . . . . . . . . . . . . . . . . . . . 26
5.2 Connecting the measuring unit . . . . . . . . . . . . . . 27
5.3 Overvoltage protection (optional) . . . . . . . . . . . . 28
5.4 Post-connection check . . . . . . . . . . . . . . . . . . . . . 28
6 Operation. . . . . . . . . . . . . . . . . . . . . . . . . 29
6.1 Onsite display (optional) . . . . . . . . . . . . . . . . . . . 29
6.2 Operating elements . . . . . . . . . . . . . . . . . . . . . . . 30
6.3 PROFIBUS PA communication protocol . . . . . . . 33
6.4 Onsite operation – onsite display connected . . . 53
6.5 Endress+Hauser operating program . . . . . . . . . . 56
6.6 HistoROM®/M-DAT (optional) . . . . . . . . . . . . . . 56
6.7 Locking/unlocking operation . . . . . . . . . . . . . . . 59
6.8 Factory setting (reset) . . . . . . . . . . . . . . . . . . . . . 60
7 Commissioning. . . . . . . . . . . . . . . . . . . . 62
7.1 Configuring messages . . . . . . . . . . . . . . . . . . . . . 62
7.2 Function check . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
7.3 Commissioning via Class 2 master (FieldCare) . 63
7.4 Selecting language and measuring mode . . . . . 63
7.5 Position adjustment . . . . . . . . . . . . . . . . . . . . . . . 65
7.6 Pressure measurement . . . . . . . . . . . . . . . . . . . . . 66
7.7 Level measurement . . . . . . . . . . . . . . . . . . . . . . . . 68
7.8 Scaling the OUT value . . . . . . . . . . . . . . . . . . . . . . 72
7.9 System units (SET UNIT TO BUS) . . . . . . . . . . . . . 73
8 Maintenance . . . . . . . . . . . . . . . . . . . . . 74
8.1 Cleaning instructions . . . . . . . . . . . . . . . . . . . . . . . 74
8.2 Exterior cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
9 Troubleshooting . . . . . . . . . . . . . . . . . . 75
9.1 Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
9.2 Response of outputs to errors . . . . . . . . . . . . . . . . 83
9.3 Confirming messages . . . . . . . . . . . . . . . . . . . . . . . 85
9.4 Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
9.5 Repair of Ex-certified devices . . . . . . . . . . . . . . . . 86
9.6 Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
9.7 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
9.8 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
9.9 Software history . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
9.10 Hardware history . . . . . . . . . . . . . . . . . . . . . . . . . . 87
10 Technical data . . . . . . . . . . . . . . . . . . . . 88
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Document information Cerabar S PMC71, PMP71, PMP75 with PROFIBUS PA
4Endress+Hauser
1 Document information
1.1 Document function
These Operating Instructions contain all the information that is required in various phases
of the life cycle of the device: from product identification, incoming acceptance and storage,
to mounting, connection, operation and commissioning through to troubleshooting,
maintenance and disposal.
1.2 Symbols used
1.2.1 Safety symbols
1.2.2 Electrical symbols
1.2.3 Tool symbols
Symbol Meaning
A0011189-DE
DANGER!
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
seriousor fatal injury.
A0011190-DE
WARNING!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
seriousor fatal injury.
A0011191-DE
CAUTION!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minoror medium injury.
A0011192-DE
NOTICE!
This symbol contains information on procedures and other facts which do not result in
personalinjury.
Symbol Meaning Symbol Meaning
Direct current Alternating current
Direct current and alternating current Ground connection
A grounded terminal which, as far as
the operator is concerned, is grounded
via a grounding system.
Protective ground connection
A terminal which must be connected
to ground prior to establishing any
other connections.
Equipotential connection
A connection that has to be connected
to the plant grounding system: This
may be a potential equalization line or
a star grounding system depending on
national or company codes of practice.
Symbol Meaning
A0011221
Allen key
A0011222
Hexagon wrench
DANGER
WARNING
CAUTION
NOTICE
)

Cerabar S PMC71, PMP71, PMP75 with PROFIBUS PA Document information
Endress+Hauser 5
1.2.4 Symbols for certain types of information
1.2.5 Symbols in graphics
1.2.6 Symbols at the device
1.3 Registered trademarks
KALREZ, VITON, TEFLON
Registered trademarks of E.I. Du Pont de Nemours & Co., Wilmington, USA
TRI-CLAMP
Registered trademark of Ladish & Co., Inc., Kenosha, USA
PROFIBUS PA®
Trademark of the PROFIBUS User Organization, Karlsruhe, Germany
GORE-TEX®
Registered trademarks of W.L. Gore & Associates, Inc., USA
Symbol Meaning
A0011182
Permitted
Indicates procedures, processes or actions that are permitted.
A0011184
Forbidden
Indicates procedures, processes or actions that are forbidden.
A0011193
Tip
Indicates additional information.
A0028658
Reference to documentation
A0028659
Reference to page
A0028660
Reference to graphic
A0031595
Series of steps
A0018343
Result of a sequence of actions
A0028673
Visual inspection
Symbol Meaning
1, 2, 3, 4, ... Item numbers
A0031595
Series of steps
A, B, C, D, ... Views
Symbol Meaning
A0019159
Safety instructions
Observe the safety instructions contained in the associated Operating Instructions.
A
,… ,
1. 2. 3.
,… ,
1. 2. 3.

Document information Cerabar S PMC71, PMP71, PMP75 with PROFIBUS PA
6Endress+Hauser
1.4 Terms and abbreviations
A0029505
Position Term/Abbreviation Explanation
1 OPL The OPL (over pressure limit = sensor overload limit) for the sensors
depends on the lowest-rated element, with regard to pressure, of the
selected components, i.e. the process connection must be taken into
consideration in addition to the measuring cell. Also observe pressure-
temperature dependency. For the relevant standards and additional notes,
see technical information.
The OPL may be applied for a limited time period.
2 MWP The MWP (maximum working pressure) for the sensors depends on the
lowest-rated element, with regard to pressure, of the selected components,
i.e. the process connection has to be taken into consideration in addition to
the measuring cell. Also observe pressure-temperature dependency. For the
relevant standards and additional notes, see technical information.
The MWP may be applied for an unlimited time.
3Maximumsensor
measuring range
Range between LRL and URL
This span is the maximum calibratable/adjustable measuring span.
4 Calibrated/Adjusted
measuring span
Range between LRV and URV
Factory setting: 0...URL
Other calibrated spans can be ordered with customised settings.
p - Pressure
- LRL Lower range limit
-URL Upperrangelimit
- LRV Lower range value
-URV Upperrangevalue
-TD Turndown
URL OPLMWP
LRL
0
p
LRV URV
1
2
3
4

Cerabar S PMC71, PMP71, PMP75 with PROFIBUS PA Document information
Endress+Hauser 7
1.5 Turn down calculation
A0029545
Fig. 1:
1Calibrated/Adjusted measuring span
2Zero-based span
3Upper range limit
LRV URLURV LRL
1 = 2 3
Example
• Sensor: 10 bar (150 psi)
• Upper range limit (URL) = 10 bar (150 psi)
Turn down (TD):
• Calibrated/Adjusted measuring span: 0...5 bar
(0...75 psi)
• Lower range value (LRV) = 0 bar
• Upper range value (URV) = 5 bar (75 psi)
TD = URL
|URV - LRV|
TD = 10 bar (150 psi) =2
|5 bar (75 psi) - 0 bar (0 psi)|
In this example, the TD is thus 2:1.
This span is based on the zero point.

Basic safety instructions Cerabar S PMC71, PMP71, PMP75 with PROFIBUS PA
8Endress+Hauser
2 Basic safety instructions
2.1 Requirements concerning the staff
The personnel for installation, commissioning, diagnostics and maintenance must fulfill the
following requirements:
•Trained, qualified specialists: must have a relevant qualification for this specific function
and task
•Are authorized by the plant owner/operator
•Are familiar with federal/national regulations
•Before beginning work, the specialist staff must have read and understood the instructions
in the Operating Instructions and supplementary documentation as well as in the
certificates (depending on the application)
•Following instructions and basic conditions
The operating personnel must fulfill the following requirements:
•Being instructed and authorized according to the requirements of the task by the facility's
owner-operator
•Following the instructions in these Operating Instructions
2.2 Designated use
The Cerabar S is a pressure transmitter for measuring pressure and level.
2.2.1 Incorrect use
The manufacturer is not liable for damage caused by improper or non-designated use.
Verification for borderline cases:
For special fluids and fluids for cleaning, Endress+Hauser is glad to provide assistance in
verifying the corrosion resistance of fluid-wetted materials, but does not accept any
warranty or liability.
2.3 Workplace safety
For work on and with the device:
•Wear the required personal protective equipment according to federal/national
regulations.
•Switch off the supply voltage before connecting the device.
2.4 Operational safety
Risk of injury!
‣Operate the device in proper technical condition and fail-safe condition only.
‣The operator is responsible for interference-free operation of the device.
Conversions to the device
Unauthorized modifications to the device are not permitted and can lead to unforeseeable
dangers:
‣If, despite this, modifications are required, consult with Endress+Hauser.
Repair
To ensure continued operational safety and reliability,
‣Carry out repairs on the device only if they are expressly permitted.
‣Observe federal/national regulations pertaining to repair of an electrical device.
‣Use original spare parts and accessories from Endress+Hauser only.

Cerabar S PMC71, PMP71, PMP75 with PROFIBUS PA Basic safety instructions
Endress+Hauser 9
2.5 Hazardous area
To eliminate a danger for persons or for the facility when the device is used in the hazardous
area (e.g. explosion protection, pressure vessel safety):
•Based on the nameplate, check whether the ordered device is permitted for the intended
use in the hazardous area.
•Observe the specifications in the separate supplementary documentation that is an integral
part of these Instructions.
2.6 Product safety
This measuring device is designed in accordance with good engineering practice to meet
state-of-the- art safety requirements, has been tested, and left the factory in a condition in
which they are safe to operate. It fulfills general safety requirements and legal requirements.
It also conforms to the EC directives listed in the device-specific EC declaration of conformity.
Endress+Hauser confirms this fact by applying the CE mark.

Identification Cerabar S PMC71, PMP71, PMP75 with PROFIBUS PA
10 Endress+Hauser
3 Identification
3.1 Product identification
The following options are available for identification of the measuring device:
•Nameplate specifications
•Order code with breakdown of the device features on the delivery note
•Enter serial numbers from nameplates in W@M Device Viewer
(www.endress.com/deviceviewer): All information about the measuring device is
displayed.
For an overview of the technical documentation provided, enter the serial number from the
nameplates in the W@M Device Viewer (www.endress.com/deviceviewer).
3.2 Device designation
3.2.1 Nameplate
•The MWP (maximum working pressure) is specified on the nameplate. This value refers to
a reference temperature of +20 °C (68°F) and may be applied to the device for an unlimited
time. Observe temperature dependency of the MWP. The pressure values permitted at
higher temperatures can be found in the standards EN 1092-1: 2001 Tab. 18 (With
regard to their stability-temperature property, the materials 1.4435 and 1.4404 are
grouped together under 13EO in EN 1092-1 Tab. 18. The chemical composition of the two
materials can be identical.), ASME B 16.5a – 1998 Tab. 2-2.2 F316, ASME B 16.5a –
1998 Tab. 2.3.8 N10276, JIS B 2220.
•The test pressure corresponds to the over pressure limit (OPL) of the device = MWP x 1.5 1).
•The Pressure Equipment Directive (2014/68/EU) uses the abbreviation "PS".
The abbreviation "PS" corresponds to the MWP (maximum working pressure) of the
measuring device.
Aluminium and stainless steel housing (T14)
A0016056
Fig. 2: Nameplate
1Device name
2Order code (for re-orders)
3Extended order code (complete)
4Technical data
5 Serial number (for identification)
6Address of manufacturer
Devices for use in hazardous areas are fitted with an additional nameplate.
1) The equation does not apply for PMP71 and PMP75 with a 40 bar (600 psi) or a 100 bar (1500 psi) measuring
cell.
Ser. no.:
Order code:
Ext. order code:
25
6
3
4
1

Cerabar S PMC71, PMP71, PMP75 with PROFIBUS PA Identification
Endress+Hauser 11
A0021222
Fig. 3: Additional nameplate
1Approval-specific information
2Document number for safety instructions or drawing number
Devices suitable for oxygen applications or with PVDF process connection are fitted with an
additional nameplate.
A0022683
Fig. 4: Additional nameplate
1Application limits
Hygenic stainless steel housing (T17)
A0021552
Fig. 5: Nameplate
1Device name
2Address of manufacturer
3Order code (for re-orders)
4Extended order code (complete)
5 Serial number (for identification)
6Technical data
7Approval-specific information and document number for safety instructions or drawing number
3.2.2 Identifying the sensor type
See parameter "Sensor Meas.Type" in Operating Instructions BA00296P.
2
1
1
2
7
3
4
5
6
1
Ser. no.:
Order code:
Ext. ord. cd.:

Identification Cerabar S PMC71, PMP71, PMP75 with PROFIBUS PA
12 Endress+Hauser
3.3 Scope of delivery
The scope of delivery comprises:
•Cerabar S pressure transmitter
•For devices with the "HistoROM/M-DAT" option:
CD-ROM with Endress+Hauser operating program
•Optional accessories
Documentation supplied:
•The Operating Instructions BA00295P and BA00296P are available via the Internet.
See: www.endress.com Download.
•Brief Operating Instructions KA01022P
•Leporello KA00244P
•Final inspection report
•Also Safety Instructions with ATEX, IECEx and NEPSI devices
•Optional: factory calibration form, test certificates
3.4 Certificates and approvals
CE mark, declaration of conformity
The device is designed to meet state-of-the-art safety requirements, has been tested and left
the factory in a condition in which it is safe to operate. The device complies with the
applicable standards and regulations as listed in the EC declaration of conformity and thus
complies with the statutory requirements of the EC Directives. Endress+Hauser confirms the
successful testing of the device by affixing to it the CE mark.

Cerabar S PMC71, PMP71, PMP75 with PROFIBUS PA Installation
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4Installation
4.1 Incoming acceptance, transport, storage
4.1.1 Incoming acceptance
•Check the packaging and the contents for damage.
•Check the shipment, make sure nothing is missing and that the scope of supply matches
your order.
4.1.2 Transport
WARNING
!
Incorrect transportation
Housing, diaphragm and capillaries may become damaged, and there is a risk of injury!
‣Transport the measuring device to the measuring point in its original packaging or by the
process connection (with secure transport protection for the diaphragm).
‣Follow the safety instructions and transport conditions for devices weighing more than 18
kg (39.6 lbs).
‣Do not use capillaries as a carrying aid for the diaphragm seals.
4.1.3 Storage
The device must be stored in a dry, clean area and protected against impact (EN 837-2).
Storage temperature range:
•–40 °C to +90°C (–40 °F to +194°F)
•Onsite display: –40 °C to +85°C (–40 °F to +185°F)
•Separate housing: –40 °C to +60°C (–40 °F to +140°F)
4.2 Installation conditions
4.2.1 Dimensions
For dimensions, please refer to "Mechanical construction" section in TI00383P.

Installation Cerabar S PMC71, PMP71, PMP75 with PROFIBUS PA
14 Endress+Hauser
4.3 General installation instructions
•Devices with a G 1 1/2 thread:
When screwing the device into the tank, the flat seal has to be positioned on the sealing
surface
of the process connection. To avoid additional strain on the process isolating diaphragm,
the thread should never be sealed with hemp or similar materials.
•Devices with NPT threads:
–Wrap Teflon tape around the thread to seal it.
–Tighten the device at the hexagonal bolt only. Do not turn at the housing.
–Do not overtighten the thread when screwing. Max. torque: 20 to 30 Nm (14.75 to 22.13
lbf ft)
•For the following process connections a tightening torque of max. 40 Nm (29.50 lbf ft)
is required:
–Thread ISO228 G1/2 (Order option "1A" or "1B")
–Thread DIN13 M20 x 1.5 (Order option "1N" or "1P")
4.3.1 Mounting sensor modules with PVDF thread
WARNING
!
Risk of damage to process connection!
Risk of injury!
‣Sensor modules with PVDF thread must be installed with the mounting bracket provided!
WARNING
!
Material fatigue from pressure and temperature!
Risk of injury if parts burst! The thread can become loose if exposed to high pressure and
temperatures.
‣The integrity of the thread must be checked regularly and the thread may need to be re-
tightened with the maximum tightening torque of 7 Nm (5.16 lbf ft). Teflon tape is
recommended for sealing the ½" NPT thread.
4.4 Installation instructions
•Due to the orientation of the Cerabar S, there may be a shift in the measured value, i.e.
when the container is empty, the measured value does not display zero. You can correct
this zero point shift either via the "zero" key on the electronic insert, or on the outside of
the device or via the onsite display. See ä30, "Position of operating elements", ä31,
"Function of operating elements" and ä65, "Position adjustment".
•For PMP75, please refer to ä17 "Installation instructions for devices with diaphragm
seals – PMP75".
•To ensure optimal readability of the onsite display, it is possible to rotate the housing up to
380°. See also ä24, "Rotating the housing".
•Endress+Hauser offers a mounting bracket for installing on pipes or walls.
See also ä21, "Wall and pipe mounting (optional)".
4.4.1 Installation instructions for devices without diaphragm seals –
PMP71, PMC71
NOTICE
Damage to the device!
If a heated Cerabar S is cooled during the cleaning process (e.g. by cold water), a vacuum
develops for a short time, whereby moisture can penetrate the sensor through the pressure
compensation (1).

Cerabar S PMC71, PMP71, PMP75 with PROFIBUS PA Installation
Endress+Hauser 15
‣If this is the case, mount the Cerabar S with the pressure compensation (1) pointing
downwards.
•Keep the pressure compensation and GORE-TEX®filter (1) free from contamination and
water.
•Cerabar S devices without a diaphragm seal are mounted as per the norms for a manometer
(DIN EN 837-2). We recommend the use of shutoff devices and siphons. The orientation
depends on the measuring application.
•Do not clean or touch process isolating diaphragm seals with hard or pointed objects.
•The device must be installed as follows in order to comply with the cleanability
requirements of the ASME-BPE (Part SD Cleanability):
Pressure measurement in gases
P01-PMx7xxxx-11-xx-xx-xx-001
Fig. 6: Measuring arrangement for pressure measurement in gases
1Cerabar S
2Shutoff device
Mount Cerabar S with shutoff device above the tapping point so that the condensate can flow
into the process.
1
1
1
FIELD TERMINALSFIELD TERMINALS
FIELD TERMINALSFIELD TERMINALS
FIELDTERMINALSFIELDTERMINALS
FIELDTERMINALS
FIELDTERMINALS
FIELDTERMINALS
FIELDTERMINALS
FIELDTERMINALS
FIELDTERMINALS
➀
➁

Installation Cerabar S PMC71, PMP71, PMP75 with PROFIBUS PA
16 Endress+Hauser
Pressure measurement in steams
P01-PMx7xxxx-11-xx-xx-xx-002
Fig. 7: Measuring arrangement for pressure measurement in steams
1Cerabar S
2Shutoff device
3U-shaped siphon
4Circular siphon
•Use siphons for pressure measurement in steam. The siphon reduces the temperature to
almost ambient temperature. Preferably mount the Cerabar S with the siphon below the
tapping point.
Advantages:
–defined water column only causes minimal/negligible measured errors
–only minimal/negligible thermal effects on the device
Mounting above the tapping point is also possible. Pay attention to the maximum
permitted ambient temperature of the transmitter!
•Fill the siphon with liquid before commissioning.
Pressure measurement in liquids
P01-PMx7xxxx-11-xx-xx-xx-003
Fig. 8: Measuring arrangement for pressure measurement in liquids
1Cerabar S
2Shutoff device
Mount Cerabar S with shutoff device below or at the same level as the tapping point.
➂
➀
➁
➃
➀
➁
➀
➁

Cerabar S PMC71, PMP71, PMP75 with PROFIBUS PA Installation
Endress+Hauser 17
Level measurement
P01-PMP75xxx-11-xx-xx-xx-000
Fig. 9: Measuring arrangement for level
•Mount Cerabar S below the lowest measuring point.
•Do not mount the device at the following positions:
In the fill flow, in the tank outlet or at a point in the container which could be affected by
pressure pulses from an agitator.
•Do not mount the device in the suction area of a pump.
•The calibration and functional test can be carried out more easily if you mount the device
after a shutoff device.
4.4.2 Installation instructions for devices with diaphragm seals –
PMP75
•Cerabar S devices with diaphragm seals are screwed in, flanged or clamped, depending on
the type of diaphragm seal.
•Please note that the hydrostatic pressure of the liquid columns in the capillaries can cause
zero point shift. The zero point shift can be corrected.
•Do not clean or touch the process isolating diaphragm of the diaphragm seal with hard or
pointed objects.
•Do not remove process isolating diaphragm protection until shortly before installation.
NOTICE
Improper handling!
Damage to the device!
‣A diaphragm seal and the pressure transmitter together form a closed, oil-filled calibrated
system. The fill fluid hole is sealed and may not be opened.
‣When using a mounting bracket, sufficient strain relief must be ensured for the capillaries
in order to prevent the capillary bending down (bending radius 100 (3.94 in)).
‣Please observe the application limits of the diaphragm seal filling oil as detailed in the
Technical Information for Cerabar S TI00383P, "Planning instructions for diaphragm seal
systems" section.
NOTICE
In order to obtain more precise measurement results and to avoid a defect in the device,
mount the capillaries as follows:
‣Vibration-free (in order to avoid additional pressure fluctuations)
‣Not in the vicinity of heating or cooling lines
‣Insulate if the ambient temperature is below or above the reference temperature
‣With a bending radius of 100 mm (3.94 in).
‣Do not use the capillaries as a carrying aid for the diaphragm seals!

Installation Cerabar S PMC71, PMP71, PMP75 with PROFIBUS PA
18 Endress+Hauser
Vacuum application
For applications under vacuum, Endress+Hauser recommends mounting the pressure
transmitter below the diaphragm seal. This prevents vacuum loading of the diaphragm seal
caused by the presence of fill fluid in the capillary.
When the pressure transmitter is mounted above the diaphragm seal, the maximum height
difference H1 in accordance with the illustrations below must not be exceeded.
A0020472
Fig. 10: Installation above the lower diaphragm seal
The maximum height difference depends on the density of the filling oil and the smallest
ever pressure that is permitted to occur at the diaphragm seal (empty vessel), see illustration
below:
A0023986-en
Fig. 11: Diagram of maximum installation height above the lower diaphragm seal for vacuum applications depending on the pressure
at the diaphragm seal
AHeight difference H1
BPressure at diaphragm seal
1Low temperature oil
2Vegetable oil
3Silicone oil
4High-temperature oil
5Inert oil
H1
FIELDTERMINALS FIELDTERMINALS
1
2
3
4
5
A
B
0.0
2.0
4.0
6.0
8.0
10.0
12.0
50 100 300 400 500 600 700 800 900 1000200
[mbar ]
abs
[m]

Cerabar S PMC71, PMP71, PMP75 with PROFIBUS PA Installation
Endress+Hauser 19
Mounting with temperature isolator
Endress+Hauser recommends the use of temperature isolators in the event of constant
extreme medium temperatures which lead to the maximum permissible electronics
temperature of +85 °C (+185°F) being exceeded. Depending on the filling oil used,
diaphragm seal systems with temperature isolators can be used for maximum temperatures
of up to +400 °C (+752 °F). For the temperature application limits, see technical
Information, "Diaphragm seal filling oils" section. To minimize the influence of rising heat,
Endress+Hauser recommends the device be mounted horizontally or with the housing
pointing downwards. The additional installation height also brings about a maximum zero
point shift of 21 mbar (0.315 psi) due to the hydrostatic column in the temperature isolator.
You can correct this zero point shift at the device.
A0032475
Fig. 12:
1Transmitter
2Insulation material
T
T
T
p
p
p
TT
T
aa
a
ABC
22
111
TpTa
+212
+176+140+104+68+32-4-40-76
+400
+350
+300
+250
+200
+150
+100
+50
0
-50
-100
+752
+662
+572
+482
+392
+302
+212
+122
+32
-58
-148 [°C]
[°F]
[°C][°F]
+100+80+60+40+20
0
-20-40-60
AC B
Position Insulation Ambient temperature (Ta) at transmitter Maximum process temperature (Tp)
ANo insulation 60 °C (140 °F) 400 °C (752 °F) 1)
85 °C (185 °F) 200 °C (392 °F)
B30 mm (1.18 in) Insulation 80 °C (176 °F) 400 °C (752 °F) )
85 °C (185 °F) 300 °C (572 °F)
CMaximum insulation 67 °C (153 °F) 400 °C (752 °F) )
85 °C (185 °F) 200 °C (392 °F)
1) Process temperature: max. 400 °C (752 °F), depending on the diaphragm seal filling oil used

Installation Cerabar S PMC71, PMP71, PMP75 with PROFIBUS PA
20 Endress+Hauser
4.4.3 Seal for flange mounting
NOTICE
Corrupted measurement results.
The seal is not allowed to press against the process isolating diaphragm as this could affect
the measurement result.
‣Ensure that the seal is not touching the process isolating diaphragm.
A0017743
Fig. 13:
1Process isolating diaphragm
2Seal
4.4.4 Installation with heat insulation – PMC71 high temperature
version and PMP75
The devices must only be insulated up to a certain height.
The maximum permitted insulation height is labeled on the devices and applies to an
insulation material with a specific heat conductivity and to the maximum permitted ambient
and process temperature (see the following table). The data were determined under the
most critical application "quiescent air".
P01-PMx7xxxx-11-xx-xx-xx-010
Fig. 14: Maximum permitted insulation height, here e.g. PMC71 with flange
12
T
A
T
P
Insulation
material
PMC71 PMP75
Ambient temperature (TA)70 °C (158°F) 70 °C (158°F)
Process temperature (TP)150 °C (302°F) 400 °C (752°F)1)
1) Depending on the diaphragm seal filling oil used (see Technical Information TI00383P Cerabar S)
Heat conductivity
insulation material 0.04 W/(m x K)