Endress+Hauser Cerabar PMC11 User manual

Products Solutions Services
Operating Instructions
Cerabar PMC11, PMC21, PMP11,
PMP21, PMP23
Process pressure measurement
Pressure transducer for safe measurement and
monitoring of absolute and gauge pressure
BA01271P/00/EN/05.17
71353696

Cerabar PMC11, PMC21, PMP11, PMP21, PMP23
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
• 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 distributor will supply you with current information and updates to
these Instructions.

Cerabar PMC11, PMC21, PMP11, PMP21, PMP23 Table of contents
Endress+Hauser 3
Table of contents
1 Document information .............. 4
1.1 Document function ..................... 4
1.2 Symbols used .......................... 4
1.3 Documentation ........................ 5
1.4 Terms and abbreviations ................. 7
1.5 Turn down calculation ................... 8
2 Basic safety instructions ............ 9
2.1 Requirements concerning the staff .......... 9
2.2 Designated use ........................ 9
2.3 Workplace safety ...................... 10
2.4 Operational safety ..................... 10
2.5 Product safety ........................ 10
3 Product description ................ 11
3.1 Product design ........................ 11
3.2 Function ............................ 11
4 Incoming acceptance and product
identification ..................... 13
4.1 Incoming acceptance ................... 13
4.2 Product identification ................... 14
4.3 Storage and transport .................. 14
5 Installation ....................... 16
5.1 Mounting dimensions .................. 16
5.2 Installation conditions .................. 16
5.3 Influence of the installation position ........ 16
5.4 Mounting location ..................... 17
5.5 Mounting the profiled seal for the universal
process adapter ....................... 18
5.6 Mounting instructions for oxygen
applications .......................... 18
5.7 Post-installation check .................. 19
6 Electrical connection .............. 20
6.1 Connecting the measuring unit ............ 20
6.2 Connection conditions .................. 21
6.3 Connection data ....................... 21
6.4 Post-connection check .................. 22
7 Operation options ................. 23
7.1 Plug-on display PHX20 (optional) .......... 23
8 Diagnostics and troubleshooting ... 26
8.1 Troubleshooting ...................... 26
8.2 Response of output to errors .............. 26
8.3 Disposal ............................ 26
9 Maintenance ...................... 26
9.1 Exterior cleaning ...................... 27
10 Repair ............................ 28
10.1 General notes ........................ 28
10.2 Return .............................. 28
11 Accessories ....................... 29
11.1 Weld-in adapter ...................... 29
11.2 Process adapter M24 ................... 29
11.3 Plug-on display PHX20 ................. 30
11.4 M12 plug connectors ................... 30
12 Technical data .................... 31
12.1 Input ............................... 31
12.2 Output ............................. 35
12.3 Performance characteristics of ceramic
process isolating diaphragm .............. 37
12.4 Performance characteristics of metallic
process isolating diaphragm .............. 39
12.5 Environment ......................... 41
12.6 Process ............................. 43
Index .................................. 45

Document information Cerabar PMC11, PMC21, PMP11, PMP21, PMP23
4 Endress+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
Symbol Meaning
DANGER
DANGER!
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
serious or fatal injury.
WARNING
WARNING!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
serious or fatal injury.
CAUTION
CAUTION!
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minor or medium injury.
NOTICE
NOTE!
This symbol contains information on procedures and other facts which do not result in
personal injury.
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
A0011222
Open-ended wrench
1.2.4 Symbols for certain types of information
Symbol Meaning
Permitted
Procedures, processes or actions that are permitted.
Forbidden
Procedures, processes or actions that are forbidden.
Tip
Indicates additional information.

Cerabar PMC11, PMC21, PMP11, PMP21, PMP23 Document information
Endress+Hauser 5
Symbol Meaning
Reference to documentation
A
Reference to page
Reference to graphic
,… ,
1. 2. 3.
Series of steps
Result of a step
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
1.3 Documentation
The document types listed are available:
In the Download Area of the Endress+Hauser Internet site: www.endress.com →
Download
1.3.1 Technical Information (TI): planning aid for your device
PMC11: TI01133P
PMP11: TI01133P
PMC21: TI01133P
PMP21: TI01133P
PMP23: TI01203P
The document contains all the technical data on the device and provides an overview of
the accessories and other products that can be ordered for the device.
1.3.2 Brief Operating Instructions (KA): getting the 1st measured
value quickly
KA01164P:
The Brief Operating Instructions contain all the essential information from incoming
acceptance to initial commissioning.

Document information Cerabar PMC11, PMC21, PMP11, PMP21, PMP23
6 Endress+Hauser
1.3.3 Safety Instructions (XA)
Safety Instructions (XA) are supplied with the device depending on the approval. These
instructions are an integral part of the Operating Instructions.
Device Directive Documentation Option 1)
PMP21
PMP23
ATEX II 1/2G Ex ia IIC T4 Ga/Gb XA01271P BA
PMC21 ATEX II 2G Ex ia IIC T4 Gb XA01271P BB
PMC21
PMP21
ATEX II 3G Ex ec IIC T4 Gc XA01533P BC
PMC21
PMP21
PMP23
FM IS Cl. I, Div.1 Gr. A-D T4 XA01321P FA
PMC21
PMP21
PMP23
CSA C/US IS Cl. I Div. 1 Gr. A-D XA01322P CB
PMC21
PMP21
PMP23
EAC Ex ia IIC T4 Ga/Gb XA01540P GA
PMC21
PMP21
PMP23
IEC Ex ia IIC T4 Ga/Gb XA01271P IA
PMC21
PMP21
PMP23
NEPSI Ex ia IIC T4 XA01363P NA
PMC21
PMP21
PMP23
TIIS Ex ia IIC T4 In preparation TA
1) Product Configurator, order code for "Approval"
The nameplate provides information on the Safety Instructions (XA) that are relevant
for the device.

Cerabar PMC11, PMC21, PMP11, PMP21, PMP23 Document information
Endress+Hauser 7
1.4 Terms and abbreviations
URL OPLMWP
LRL
0
p
LRV URV
1
2
3
4
A0029505
Item Term/
abbreviation
Explanation
1 OPL The OPL (over pressure limit = sensor overload limit) for the measuring device
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 the "Pressure specifications" section
→  44 .
The OPL may only be applied for a limited period of time.
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 the "Pressure specifications" section →  44 .
The MWP may be applied at the device for an unlimited period.
The MWP can also be found on the nameplate.
3 Maximum sensor
measuring range
Span between LRL and URL
This sensor measuring range is equivalent to the maximum calibratable/adjustable
span.
4 Calibrated/
adjusted span
Span between LRV and URV
Factory setting: 0 to URL
Other calibrated spans can be ordered as customized spans.
p - Pressure
- LRL Lower range limit
- URL Upper range limit
- LRV Lower range value
- URV Upper range value
- TD (turn down) Turn down
The turn down is preset at the factory and cannot be changed.
Example - see the following section.

Document information Cerabar PMC11, PMC21, PMP11, PMP21, PMP23
8 Endress+Hauser
1.5 Turn down calculation
LRV URLURV LRL
1 = 2 3
A0029545
1 Calibrated/adjusted span
2 Zero point-based span
3 URL sensor
Example
• Sensor:10 bar (150 psi)
• Upper range value (URL) = 10 bar (150 psi)
Turn down (TD):
• Calibrated/adjusted span: 0 to 5 bar (0 to 75 psi)
• Lower range value (LRV) = 0 bar (0 psi)
• 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 2:1.
This span is based on the zero point.

Cerabar PMC11, PMC21, PMP11, PMP21, PMP23 Basic safety instructions
Endress+Hauser 9
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
2.2.1 Application and media
The Cerabar is used to measure absolute and gauge pressure in gases, vapors and liquids.
The process-wetted materials of the measuring device must have an adequate level of
resistance to the media.
The measuring device may be used for the following measurements (process variables)
• in compliance with the limit values specified under "Technical data"
• in compliance with the conditions that are listed in additional documentation such as the
XA and this manual.
Measured process variable
• PMC11: gauge pressure
• PMP11: gauge pressure
• PMC21: gauge pressure or absolute pressure
• PMP21: gauge pressure or absolute pressure
• PMP23: gauge pressure or absolute pressure
Calculated process variable
Pressure
2.2.2 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 process-wetted materials, but does not accept
any warranty or liability.
2.2.3 Residual risks
When in operation, the housing may reach a temperature close to the process
temperature.

Basic safety instructions Cerabar PMC11, PMC21, PMP11, PMP21, PMP23
10 Endress+Hauser
Danger of burns from contact with surfaces!
‣For elevated process temperatures, ensure protection against contact to prevent burns.
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.
Hazardous area
To eliminate the risk of danger to persons or the facility when the device is used in the
approval-related area (e.g. explosion protection, pressure equipment safety):
‣Check the nameplate to verify if the device ordered can be put to its intended use in the
approval-related area.
‣Observe the specifications in the separate supplementary documentation, such as the
XA or SD, which 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 it is safe to operate.
It meets general safety standards and legal requirements. It also complies with the EU
directives listed in the device-specific EU Declaration of Conformity. Endress+Hauser
confirms this by affixing the CE mark to the device.

Cerabar PMC11, PMC21, PMP11, PMP21, PMP23 Product description
Endress+Hauser 11
3 Product description
3.1 Product design
Overview Position Description
A
A0027231
B
A0027232
C - 1
A0021987
C - 2
A0027289
A Valve plug
B Cable
C- 1 M12 plug
Housing cap made of plastic
C- 2 M12 plug
For Ex ec and IP69: metal housing cap
Metal housing cap can also be ordered as an option.
D
E
A0027226
D
E
A0027215
D
E
A0027227
D
E
Housing
Process connection (sample illustration)
3.2 Function
3.2.1 Calculating the pressure
Devices with ceramic process isolating diaphragm (Ceraphire®)
The ceramic sensor is an oil-free sensor, i.e. the process pressure acts directly on the
robust ceramic process isolating diaphragm and causes it to deflect. A pressure-dependent

Product description Cerabar PMC11, PMC21, PMP11, PMP21, PMP23
12 Endress+Hauser
change in capacitance is measured at the electrodes of the ceramic substrate and the
process isolating diaphragm. The measuring range is determined by the thickness of the
ceramic process isolating diaphragm.
Devices with metallic process isolating diaphragm
The process pressure deflects the metal process isolating diaphragm of the sensor and a fill
fluid transfers the pressure to a Wheatstone bridge (semiconductor technology). The
pressure-dependent change in the bridge output voltage is measured and evaluated.

Cerabar PMC11, PMC21, PMP11, PMP21, PMP23 Incoming acceptance and product identification
Endress+Hauser 13
4 Incoming acceptance and product
identification
4.1 Incoming acceptance
A0028673
DELIVERY NOTE
1 = 2
A0016870
Is the order code on the delivery note (1) identical to the order code on
the product sticker (2)?
A0022100
A0028673
A0022103
Are the goods undamaged?
A0028673
DELIVERY NOTE
A0022105
Do the data on the nameplate correspond to the order specifications and
the delivery note?

Incoming acceptance and product identification Cerabar PMC11, PMC21, PMP11, PMP21, PMP23
14 Endress+Hauser
A0028673
A0022106
Is the documentation available?
If required (see nameplate): Are the safety instructions (XA) present?
If one of these conditions does not apply, please contact your
Endress+Hauser sales office.
4.2 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)
4.2.1 Nameplate
Ser. no.:
Ord. cd.:
Ext. ord. cd.:
D-79689 Maulburg
Made in Germany,
Cerabar
5
1
2
3
4
Date:
TAG:
A0024456
1 Manufacturer's address
2 Device name
3 Order number
4 Serial number
5 Extended order number
4.3 Storage and transport
4.3.1 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
–40 to +85 °C (–40 to +185 °F)

Cerabar PMC11, PMC21, PMP11, PMP21, PMP23 Incoming acceptance and product identification
Endress+Hauser 15
4.3.2 Transporting the product to the measuring point
LWARNING
Incorrect transport!
Housing and diaphragm 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.

Installation Cerabar PMC11, PMC21, PMP11, PMP21, PMP23
16 Endress+Hauser
5 Installation
5.1 Mounting dimensions
For dimensions, see the "Mechanical construction" section in the Technical Information.
5.2 Installation conditions
• No moisture may enter the housing when installing or operating the device, or when
establishing the electrical connection.
• For metal M12 plugs: Do not remove the protection cap (only for IP69 and Ex ec version)
of the M12 plug terminal until shortly before the electrical connection.
• Do not clean or touch process isolating diaphragms with hard and/or pointed objects.
• Do not remove the protector on the process isolating diaphragm until just before
installation.
• Always firmly tighten the cable entry.
• Point the cable and connector downwards where possible to prevent moisture from
entering (e.g. rain or condensation water).
• Protect the housing from impact
• The following instruction applies for devices with a gauge pressure sensor and M12 plug
or valve plug:
NOTICE
If a heated device 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 element (1).
Device could be destroyed!
‣In this case, mount the device with the pressure compensation element (1) pointing
diagonally downwards where possible or to the side.
1
1
1
1
A0022252
5.3 Influence of the installation position
Any orientation is possible. However, the orientation may cause a zero point shift i.e. the
measured value does not show zero when the vessel is empty or partially full.
C
AB
A0024708

Cerabar PMC11, PMC21, PMP11, PMP21, PMP23 Installation
Endress+Hauser 17
Type Process isolating
diaphragm axis is
horizontal (A)
Process isolating diaphragm
pointing upwards (B)
Process isolating diaphragm
pointing downwards (C)
PMP11
PMP21
PMP23
Calibration position, no
effect
Up to +4 mbar (+0.058 psi) Up to –4 mbar (–0.058 psi)
PMC11, PMC21
< 1 bar (15 psi)
Calibration position, no
effect
Up to
+0.3 mbar (+0.0044 psi)
Up to
–0.3 mbar (–0.0044 psi)
PMC11, PMC21
≥1 bar (15 psi)
Calibration position, no
effect
Up to +3 mbar (+0.0435 psi) Up to –3 mbar (–0.0435 psi)
5.4 Mounting location
5.4.1 Pressure measurement
Pressure measurement in gases
Mount the device with shutoff device above the tapping point so that any condensate can
flow into the process.
1
2
A0021904
1 Device
2 Shutoff device
Pressure measurement in vapors
For pressure measurement in vapors, use a siphon. The siphon reduces the temperature to
almost ambient temperature. Mount the device with a shutoff device at the same height as
the tapping point.
Advantage:
only minor/negligible heat effects on the device.
Note the max. permitted ambient temperature of the transmitter!
1
2
3
A0024395
1 Device
2 Shutoff device
3 Siphon

Installation Cerabar PMC11, PMC21, PMP11, PMP21, PMP23
18 Endress+Hauser
Pressure measurement in liquids
Mount the device with a shutoff device at the same height as the tapping point.
1
2
A0024399
1 Device
2 Shutoff device
5.4.2 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
– Or at a point in the tank which could be affected by pressure pulses from the agitator.
A0024405
5.5 Mounting the profiled seal for the universal process
adapter
For details on mounting, see KA00096F/00/A3.
5.6 Mounting instructions for oxygen applications
Oxygen and other gases can react explosively to oils, grease and plastics, such that, among
other things, the following precautions must be taken:
• All components of the system, such as measuring devices, must be cleaned in accordance
with the BAM requirements.
• Dependent on the materials used, a certain maximum temperature and a maximum
pressure for oxygen applications must not be exceeded.
• The following table lists devices (devices only, not accessories or enclosed accessories),
which are suitable for gaseous oxygen applications.
Device pmax for oxygen applications Tmax for oxygen applications Option 1)
PMC21 40 bar (600 psi) –10 to +60 °C (+14 to +140 °F) HB
1) Product Configurator, order code for "Service"

Cerabar PMC11, PMC21, PMP11, PMP21, PMP23 Installation
Endress+Hauser 19
5.7 Post-installation check
 Is the device undamaged (visual inspection)?

Does the device conform to the measuring point specifications?
For example:
• Process temperature
• Process pressure
• Ambient temperature range
• Measuring range
 Are the measuring point identification and labeling correct (visual inspection)?
 Is the device adequately protected from precipitation and direct sunlight?
 Are the securing screws tightened securely?
 Does the pressure compensation element point downwards at an angle or to the side?
 To prevent the penetration of moisture: are the connecting cables/plugs pointing downwards?

Electrical connection Cerabar PMC11, PMC21, PMP11, PMP21, PMP23
20 Endress+Hauser
6 Electrical connection
6.1 Connecting the measuring unit
6.1.1 Terminal assignment
LWARNING
Risk of injury from the uncontrolled activation of processes!
‣Switch off the supply voltage before connecting the device.
‣Make sure that downstream processes are not started unintentionally.
LWARNING
Supply voltage might be connected!
Risk of explosion!
‣Make sure that no supply voltage is applied when connecting.
‣Switch off the supply voltage before connecting the device.
LWARNING
Limitation of electrical safety due to incorrect connection!
‣In accordance with IEC/EN61010 a separate circuit breaker must be provided for the
device .
‣The device must be operated with a 500 mA fine-wire fuse (slow-blow).
‣When using the measuring device in hazardous areas, installation must comply with
the corresponding national standards and regulations and the Safety Instructions or
Installation or Control Drawings.
‣All explosion protection data are given in separate documentation which is available
upon request. The Ex documentation is supplied as standard with all devices approved
for use in explosion hazardous areas.
‣Protective circuits against reverse polarity are integrated.
Connect the device in the following order:
1. Check whether the supply voltage matches the supply voltage indicated on the
nameplate.
2. Connect device in accordance with the following diagram.
Switch on supply voltage.
For devices with a cable connection: do not close reference air hose (see (a) in the
following drawings)! Protect reference air hose against penetration by water/condensate.
4 to 20 mA output
Device M12 plug Valve plug Cable
PMC11
PMP11
PMC21
PMP21
PMP23
L–
L+
21
3
0.5A
A0023487
L–
L+
1
2
3
4
0.5A
A0022823
L–
L+
1
2
3
(a)
0.5A
A0023783
1 brown = L+
2 blue = L-
3 green/yellow = ground connection
(a) reference air hose