Endress+Hauser Cerabar M PMC51? Cerabar M PMP51 Technical specifications

Products Solutions Services
Brief Operating Instructions
Cerabar M PMC51, PMP51,
PMP55
Process pressure measurement
Pressure transmitter with ceramic and metal
sensors
These Brief Operating Instructions are not a substitute for the
Operating Instructions pertaining to the device.
Detailed information about the device can be found in the
Operating Instructions and the additional documentation.
Available for all device versions via
• Internet: www.endress.com/deviceviewer
• Smartphone/tablet: Endress+Hauser Operations app
KA01522P/00/EN/01.21
71536627
2021-07-01

Cerabar M PMC51, PMP51, PMP55
2 Endress+Hauser
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.
A0023555

Cerabar M PMC51, PMP51, PMP55 Table of contents
Endress+Hauser 3
Table of contents
1 About this document .............................................................. 4
1.1 Document function ..................................................................... 4
1.2 Symbols used ......................................................................... 4
1.3 Terms and abbreviations ................................................................. 5
1.4 Turn down calculation ................................................................... 6
1.5 Registered trademarks .................................................................. 6
2 Basic safety instructions .......................................................... 6
2.1 Requirements for personnel .............................................................. 6
2.2 Designated use ........................................................................ 6
2.3 Workplace safety ...................................................................... 6
2.4 Operational safety ......................................................................7
2.5 Product safety ......................................................................... 7
3 Incoming acceptance and product identification ................................... 8
3.1 Incoming acceptance .................................................................... 8
3.2 Product identification ................................................................... 8
3.3 Nameplate ........................................................................... 8
3.4 Identifying the sensor type ............................................................... 9
3.5 Storage and transport ................................................................... 9
3.6 Scope of delivery ....................................................................... 9
4 Installation ...................................................................... 10
4.1 Installation conditions .................................................................. 10
4.2 General installation instructions .......................................................... 10
4.3 Mounting sensor modules with PVDF thread ................................................. 10
4.4 Installing the ........................................................................ 11
4.5 Mounting of the profile seal for universal process mounting adapter ................................ 14
4.6 Closing the housing cover ............................................................... 14
5 Electrical connection ............................................................ 15
5.1 Connecting the device .................................................................. 15
5.2 Connecting the measuring unit ........................................................... 16
5.3 Terminals ........................................................................... 16
5.4 Cable specification .................................................................... 16
5.5 Load for current output ................................................................. 16
5.6 Field Xpert SMT70, SMT77 .............................................................. 17
5.7 FieldPort SFP20 ...................................................................... 17
6 Operation ....................................................................... 17
6.1 Operation methods .................................................................... 17
6.2 Operation without an operating menu ...................................................... 19
6.3 Operation with an operating menu ........................................................ 20
6.4 Operation with device display (optional) .................................................... 20
6.5 Operation using Endress+Hauser operating program ........................................... 25
6.6 Locking/unlocking operation ............................................................. 25
6.7 Resetting to factory settings (reset) ........................................................ 25
7 System integration .............................................................. 25
8 Commissioning .................................................................. 25
8.1 Unlocking/locking configuration .......................................................... 25
8.2 Commissioning without an operating menu .................................................. 26
8.3 Commissioning with an operating menu .................................................... 28
8.4 Configuring level measurement ........................................................... 31
8.5 Configuring pressure measurement ........................................................ 31
8.6 Backing up or duplicating the device data .................................................... 31

About this document Cerabar M PMC51, PMP51, PMP55
4 Endress+Hauser
1 About this document
1.1 Document function
The Brief Operating Instructions contain all the essential information from incoming
acceptance to initial commissioning.
1.2 Symbols used
1.2.1 Safety symbols
Symbol Meaning
DANGER
DANGER!
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
seriousor fatal injury.
WARNING
WARNING!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
seriousor fatal injury.
CAUTION
CAUTION!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minoror medium injury.
NOTICE
NOTICE!
This symbol contains information on procedures and other facts which do not result in
personalinjury.
1.2.2 Electrical symbols
Symbol Meaning Symbol Meaning
Protective ground connection
A terminal which must be connected to
ground prior to establishing any other
connections.
Ground connection
A grounded terminal which, as far as
the operator is concerned, is grounded
via a grounding system.
1.2.3 Tool symbols
Symbol Meaning
A0011221
Allen key
A0011222
Open-ended wrench

Cerabar M PMC51, PMP51, PMP55 About this document
Endress+Hauser 5
1.2.4 Symbols for certain types of information
Symbol Meaning
Permitted
Procedures, processes or actions that are permitted.
Preferred
Procedures, processes or actions that are preferred.
Forbidden
Procedures, processes or actions that are forbidden.
Tip
Indicates additional information.
Reference to documentation
A
Reference to page
Reference to graphic
Visual inspection
1.2.5 Symbols in graphics
Symbol Meaning
1, 2, 3 ... Item numbers
,… ,
1. 2. 3.
Series of steps
A, B, C, ... Views
A-A, B-B, C-C, ... Sections
1.2.6 Symbols at the device
Symbol Meaning
A0019159
Safety instructions
Observe the safety instructions contained in the associated Operating Instructions.
t 85°C>
A0029423
Connecting cable immunity to temperature change
Indicates that the connecting cables have to withstand a temperature of 85°C at least.
1.3 Terms and abbreviations
See Operating Instructions.

Basic safety instructions Cerabar M PMC51, PMP51, PMP55
6 Endress+Hauser
1.4 Turn down calculation
See the Operating Instructions.
1.5 Registered trademarks
• KALREZ®
Registered label of E.I. Du Pont de Nemours & Co., Wilmington, USA
• TRI-CLAMP®
Registered label of Ladish & Co., Inc., Kenosha, USA
•
Registered trademark of the IO-Link Community.
• GORE-TEX® trademark of W.L. Gore & Associates, Inc., USA
2 Basic safety instructions
2.1 Requirements for personnel
Personnel must meet the following requirements for their tasks:
‣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 starting work, read and understand the instructions in the manual and
supplementary documentation as well as the certificates (depending on the application)
‣Follow instructions and comply with basic conditions
2.2 Designated use
The Cerabar M is a pressure transmitter for measuring level and pressure.
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.

Cerabar M PMC51, PMP51, PMP55 Basic safety instructions
Endress+Hauser 7
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.
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.
2.5 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.

Incoming acceptance and product identification Cerabar M PMC51, PMP51, PMP55
8 Endress+Hauser
3 Incoming acceptance and product identification
3.1 Incoming acceptance
DELIVERY NOTE
1 = 2
A0016870
• Is the order code on the delivery note (1) identical to the order code on the product sticker
(2)?
• Are the goods undamaged?
• Do the data on the nameplate correspond to the order specifications and the delivery note?
• Is the documentation available?
• If required (see nameplate): Are the safety instructions (XA) present?
If one of these conditions is not fulfilled, please contact your Endress+Hauser sales office.
3.2 Product identification
The following options are available to identify the measuring device:
• Nameplate specifications
• Order code with breakdown of the device features on the delivery note
• Enter the serial numbers from the nameplates in W@M Device Viewer
(www.endress.com/deviceviewer): all the information about the device is displayed.
For an overview of the technical documentation provided, enter the serial number from the
nameplates in W@M Device Viewer (www.endress.com/deviceviewer)
3.2.1 Manufacturer address
Endress+Hauser SE+Co. KG
Hauptstraße 1
79689 Maulburg, Germany
Place of manufacture: See nameplate.
3.3 Nameplate
See operating instructions.

Cerabar M PMC51, PMP51, PMP55 Incoming acceptance and product identification
Endress+Hauser 9
3.4 Identifying the sensor type
In the case of gauge pressure sensors, the "Pos. zero adjust" parameter appears in the
operating menu ("Setup" -> "Pos. zero adjust").
In the case of absolute pressure sensors, the "Calib. offset" parameter appears in the operating
menu ("Setup" -> "Calib. offset").
3.5 Storage and transport
3.5.1 Storage conditions
Use original packaging.
Store the measuring device in clean and dry conditions and protect from damage caused by
shocks (EN 837-2).
Storage temperature range
See the Technical Information for Cerabar M TI00436P.
3.5.2 Transporting the product to the measuring point
LWARNING
Incorrect transport!
Housing and membrane 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.
‣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.
3.6 Scope of delivery
The scope of delivery comprises:
• Device
• Optional accessories
Accompanying documentation:
• Operating Instructions BA02136P is available on the Internet. See: www.de.endress.com →
Download
• Brief Operating Instructions: KA01522P Cerabar M
• Final inspection report
• Additional Safety Instructions for ATEX, IECEx and NEPSI devices
• Optional: factory calibration certificate, inspection certificates

Installation Cerabar M PMC51, PMP51, PMP55
10 Endress+Hauser
4 Installation
4.1 Installation conditions
4.1.1 Dimensions
Dimensions → see the Technical Information for Cerabar M TI00436P, "Mechanical
construction" section.
4.2 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 "GRC" or "GRJ" or "G0J")
• Thread DIN13 M20 x 1.5 (Order option "G7J" or "G8J")
4.3 Mounting sensor modules with PVDF thread
LWARNING
Risk of damage to process connection!
Risk of injury!
‣Sensor modules with PVDF thread must be installed with the mounting bracket provided!
LWARNING
Material fatigue from pressure and temperature!
Risk of injury if parts burst! The thread can become lose if exposed to high pressure and
temperature loads.
‣The integrity of the thread must be checked regularly. Also, 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.

Cerabar M PMC51, PMP51, PMP55 Installation
Endress+Hauser 11
4.4 Installing the
• Due to the orientation of the Cerabar M, there may be a shift in the zero point, i.e. when the
container is empty or partially full, the measured value does not display zero. You can
correct this zero point shift→  20"Funktion der Bedienelemente".
• The local display can be rotated in 90° stages.
• For PMP55, please refer to Section "Installation instructions for devices with diaphragm
seals – PMP55"→  13.
• Endress+Hauser offers a mounting bracket for installing on pipes or walls.→  14,
Section "Wall and pipe mounting (optional)".
4.4.1 Installation instructions for devices without diaphragm seals – PMP51, PMC51
NOTICE
Damage to the device!
If a heated device is cooled during a cleaning process (e.g. by cold water), a vacuum develops
for a short time and, as a result, moisture can enter the sensor through the pressure
compensation element (1).
‣Mount the device with the pressure compensation element (1) pointing diagonally
downwards or to the side as much possible.
1
1
1
1
A0028471
• Keep the pressure compensation and GORE-TEX® filter (1) free from contamination.
• Cerabar M transmitters without diaphragm seals 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 membranes 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):

Installation Cerabar M PMC51, PMP51, PMP55
12 Endress+Hauser
A0028472
Pressure measurement in gases
Mount the Cerabar M with the shutoff device above the tapping point so that any condensate
can flow into the process.
Pressure measurement in vapors
• Mount the Cerabar M with the siphon below the tapping point.
• Fill the siphon with liquid before commissioning. The siphon reduces the temperature to
almost ambient temperature.
Pressure measurement in liquids
Mount the Cerabar M with the shutoff device below or at the same level as the tapping point.
Level measurement
• Always install the device below the lowest measuring point.
• Do not install the device at the following positions:
• in the filling curtain
• in the tank outlet
• in the suction area of a pump
• at a point in the tank which could be affected by pressure pulses from the agitator.
• The calibration and functional test can be carried out more easily if you mount the device
downstream from a shutoff device.

Cerabar M PMC51, PMP51, PMP55 Installation
Endress+Hauser 13
4.4.2 Installation instructions for devices with diaphragm seals – PMP55
• Cerabar M 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 membrane of the diaphragm seal with hard or pointed
objects.
• Do not remove the protection on the process membrane until just 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.
‣If a mounting bracket is used, sufficient strain relief must be ensured for the capillaries in
order to prevent them from buckling (bending radius ≥ 100 mm (3.94 in)).
‣Please observe the application limits of the diaphragm seal filling oil as detailed in the
Technical Information for Cerabar M TI00436P, "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
‣Mount with a bending radius ≥ 100 mm (3.94 in)!
‣Do not use the capillaries as a carrying aid for the diaphragm seals!
Vacuum applications
See Operating Instructions.
Mounting with temperature isolator
See Operating Instructions.
Heat insulation
See Operating Instructions.
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.

Installation Cerabar M PMC51, PMP51, PMP55
14 Endress+Hauser
4.4.4 Wall and pipe mounting (optional)
See Operating Instructions.
4.4.5 Assembling and mounting the "separate housing" version
See operating instructions.
4.4.6 PMP51, version prepared for diaphragm seal mount – welding
recommendation
See the Operating Instructions.
4.5 Mounting of the profile seal for universal process mounting
adapter
For details on mounting, see KA00096F/00/A3.
4.6 Closing the housing cover
NOTICE
Devices with EPDM cover seal - transmitter leakiness!
Mineral-based, animal-based or vegetable-based lubricants cause the EPDM cover seal to
swell and the transmitter to become leaky.
‣The thread is coated at the factory and therefore does not require any lubrication.
NOTICE
The housing cover can no longer be closed.
Damaged thread!
‣When closing the housing cover, please ensure that the thread of the cover and housing
are free from dirt, e.g. sand.If you feel any resistance when closing the cover, check the
thread on both again to ensure that they are free from dirt.
4.6.1 Closing the cover on the stainless steel housing
A0028497
The cover for the electronics compartment is tightened by hand at the housing until the stop.
The screw serves as DustEx protection (only available for devices with DustEx approval).

Cerabar M PMC51, PMP51, PMP55 Electrical connection
Endress+Hauser 15
5 Electrical connection
5.1 Connecting the device
LWARNING
Supply voltage might be connected!
Risk of electric shock and/or explosion!
‣Make sure that no uncontrolled processes are triggered on the system.
‣Switch off the supply voltage before connecting the device.
‣When using the measuring device in hazardous areas, ensure compliance with the
corresponding national standards and regulations and the Safety Instructions or
Installation or Control Drawings.
‣A suitable circuit breaker must be provided for the device in accordance with IEC/
EN61010.
‣Devices with integrated overvoltage protection must be grounded.
‣Protective circuits against reverse polarity, HF influences and overvoltage peaks are
integrated.
‣The power unit must be tested to ensure it meets safety requirements (e.g., PELV, SELV,
Class 2).
Connect the device in the following order:
1. Check that the supply voltage corresponds to the supply voltage indicated on the
nameplate.
2. Switch off the supply voltage before connecting the device.
3. Connect the device in accordance with the following diagram.
4. Switch on the supply voltage.
C/Q
L–
L+
21
34IO-Link
A0045628
1 Supply voltage +
2 4-20 mA
3 Supply voltage -
4 C/Q (IO-Link communication)

Electrical connection Cerabar M PMC51, PMP51, PMP55
16 Endress+Hauser
5.2 Connecting the measuring unit
5.2.1 Supply voltage
IO-Link
• 11.5 to 30 V DC if only the analog output is used
• 18 to 30 V DC if IO-Link is used
5.2.2 Current consumption
IO-Link < 60 mA
5.3 Terminals
• Supply voltage: 0.5 to 2.5 mm2 (20 to 14 AWG)
• External ground terminal: 0.5 to 4 mm2 (20 to 12 AWG)
5.4 Cable specification
5.4.1 IO-Link
Endress+Hauser recommends using twisted, four-core cable.
5.5 Load for current output
In order to guarantee sufficient terminal voltage, a maximum load resistance RL (including
line resistance) must not be exceeded depending on the supply voltage UB of the supply unit.
[ ]W
20 30
11,5
0
1022
587
217
U
[V]
1
2
R
R
L
L
max
max
£-U 6.5V
23mA
B
B
A0045615
1 Power supply 11.5 to 30 VDC
2 RLmax maximum load resistance
UBSupply voltage

Cerabar M PMC51, PMP51, PMP55 Operation
Endress+Hauser 17
• Output of failure current and display of "M803" (Output: MIN alarm current)
• Periodic checking to establish if it is possible to quit fault state
5.6 Field Xpert SMT70, SMT77
See Operating Instructions.
5.7 FieldPort SFP20
See Operating Instructions.
6 Operation
6.1 Operation methods
6.1.1 Operation without an operating menu
Operation methods Explanation Graphic Description
Local operation without
device display
The device is operated using the
operating keys on the electronic insert.
Display
Zero
Span
A0045577
→  19

Operation Cerabar M PMC51, PMP51, PMP55
18 Endress+Hauser
6.1.2 Operation with an operating menu
Operation with an operating menu is based on an operation concept with "user roles"
→  20.
Operation methods Explanation Graphic Description
Local operation with
device display
The device is operated using the
operating keys on the device display.
E
+
–
A0029999
→  20
Remote operation via
FieldCare
The device is operated using the
FieldCare operating tool.
A0030002
→  25
6.1.3 IO-Link
IO-Link information
IO-Link Smart Sensor Profile 2nd Edition
Supports
• Identification
• Diagnosis
• Digital Measuring Sensor (as per SSP 4.3.3)
IO-Link is a point-to-point connection for communication between the measuring device and
an IO-Link master. The measuring device features an IO-Link communication interface type 2
(pin 4) with a second IO function on pin 2. This requires an IO-Link-compatible assembly (IO-
Link master) for operation. The IO-Link communication interface enables direct access to the
process and diagnostic data. It also provides the option of configuring the measuring device
while in operation.
Characteristics of the IO-Link interface:
• IO-Link specification: Version 1.1
• IO-Link Smart Sensor Profile 2nd Edition
• Speed: COM2; 38.4 kBaud
• Minimum cycle time: 10 ms
• Process data width: 14 Byte

Cerabar M PMC51, PMP51, PMP55 Operation
Endress+Hauser 19
• IO-Link data storage: Yes
• Block configuration: Yes
• Device operational: The measuring device is operational 5 seconds after the supply voltage
is applied
IO-Link download
http://www.endress.com/download
• Select "Software" as the media type
• Select "Device Driver" as the software type
Select IO-Link (IODD)
IODD for Cerabar M PMC51, PMP51, PMP55
• In the "Text Search" field enter the device name.
https://ioddfinder.io-link.com/
Search by
• Manufacturer
• Article number
• Product type
6.2 Operation without an operating menu
6.2.1 Position of operating elements
The operating keys are located in the measuring device on the electronic insert.
IO-Link
Display
Zero
Span
3
4
1
2
not used
A0045576
1 Operating keys for lower range value (zero) and upper range value (span)
2 Green LED to indicate successful operation
3 Slot for optional onsite display
4 Slot for M12 plug

Operation Cerabar M PMC51, PMP51, PMP55
20 Endress+Hauser
Function of the operating elements
Operating key(s) Meaning
"Zero" pressed for at least 3 seconds Get LRV
•"Pressure" measuring mode
The pressure present is accepted as the lower range value (LRV).
•"Level" measuring mode, "In pressure" level selection, "Wet" calibration
mode
The pressure present is assigned to the lower level value ("Empty
calibration").
"Span" pressed for at least 3 seconds Get URV
•"Pressure" measuring mode
The pressure present is accepted as the upper range value (URV).
•"Level" measuring mode, "In pressure" level selection, "Wet" calibration
mode
The pressure present is assigned to the upper level value ("Full calibration").
"Zero" and "Span" pressed
simultaneously for at least 3 seconds
Position adjustment
The sensor characteristic is shifted in parallel so that the pressure present
becomes the zero value.
"Zero" and "Span" pressed
simultaneously for at least 12 seconds
Reset
All the parameters are reset to the order configuration.
6.2.2 Locking/unlocking operation
See the Operating Instructions.
6.3 Operation with an operating menu
6.3.1 Operating concept
See the Operating Instructions.
6.3.2 Structure of the operating menu
See the Operating Instructions.
6.4 Operation with device display (optional)
A 4-line liquid crystal display (LCD) is used for display and operation. The local display shows
measured values, dialog texts, fault messages and notice messages. For easy operation the
display can be taken out of the housing (see figure steps 1 to 3). It is connected to the device
via a 90 mm (3.54 in) long cable. The display of the device can be turned in 90° stages (see
figure steps 4 to 6). Depending on the installation position of the device, this makes it easy to
operate the device and read the measured values.