Endress+Hauser Cerabar PMC21 Bedienungsanleitung
Products Solutions Services
Operating Instructions
Cerabar PMC21
IO-Link
Process pressure measurement
Pressure transducer for safe measurement and
monitoring of absolute and gauge pressure
BA02299P/00/EN/01.23-00
71620103
2023-06-28
Cerabar PMC21 IO-Link
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 this
manual.
Cerabar PMC21 IO-Link Table of contents
Endress+Hauser 3
Table of contents
1 About this document ................ 4
1.1 Purpose of this document ................. 4
1.2 Symbols .............................. 4
1.3 Documentation ........................ 5
1.4 Terms and abbreviations ................. 6
1.5 Turn down calculation ................... 6
1.6 Registered trademarks ................... 7
2 Basic safety instructions ............ 8
2.1 Requirements for the personnel ............ 8
2.2 Designated use ........................ 8
2.3 Workplace safety ....................... 9
2.4 Operational safety ...................... 9
2.5 Product safety ......................... 9
3 Product description ................ 10
3.1 Product design ........................ 10
3.2 Operating principle .................... 10
4 Incoming acceptance and product
identification ..................... 11
4.1 Incoming acceptance ................... 11
4.2 Product identification ................... 12
4.3 Storage and transport .................. 12
5 Mounting ......................... 14
5.1 Mounting requirements ................. 14
5.2 Influence of orientation ................. 14
5.3 Mounting location ..................... 15
5.4 Mounting instructions for oxygen
applications .......................... 16
5.5 Post-mounting check ................... 16
6 Electrical connection .............. 18
6.1 Connecting the measuring unit ............ 18
6.2 Connection data ....................... 19
6.3 Post-connection check .................. 20
7 Operation options ................. 21
7.1 IO-Link ............................. 21
8 System integration ................ 22
8.1 Process data ......................... 22
8.2 Reading out and writing device data (ISDU –
Indexed Service Data Unit) ............... 22
9 Commissioning .................... 29
9.1 Function check ....................... 29
9.2 Commissioning with an operating menu ..... 29
9.3 Configuring pressure measurement ........ 30
9.4 Performing position adjustment ........... 32
9.5 Configuring process monitoring ........... 34
9.6 Current output ........................ 34
9.7 Application examples ................... 37
10 Diagnosis and troubleshooting ..... 38
10.1 Troubleshooting ...................... 38
10.2 Diagnostic events ...................... 38
10.3 Behavior of the device in the event of a fault .. 41
10.4 Behavior of the current output in the event of
a fault .............................. 41
10.5 Resetting to factory settings (reset) ........ 42
10.6 Disposal ............................ 42
11 Maintenance ...................... 42
11.1 Exterior cleaning ...................... 42
12 Repairs ........................... 43
12.1 General notes ........................ 43
12.2 Return .............................. 43
12.3 Disposal ............................ 43
13 Overview of the operating menu ... 44
14 Description of device parameters ... 46
14.1 Identification ......................... 46
14.2 Diagnosis ........................... 47
14.3 Parameter ........................... 49
14.4 Observation ......................... 61
15 Accessories ....................... 62
15.1 M12 plug-in jacks ..................... 62
Index .................................. 63
About this document Cerabar PMC21 IO-Link
4 Endress+Hauser
1 About this document
1.1 Purpose of this document
These Operating Instructions contain all the information that is required in the 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
1.2.1 Safety symbols
DANGER
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
serious or fatal injury.
WARNING
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
serious or fatal injury.
CAUTION
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minor or medium injury.
NOTICE
This symbol contains information on procedures and other facts which do not result in
personal injury.
1.2.2 Electrical symbols
Protective earth (PE)
Ground terminals, which must be grounded prior to establishing any other connections.
The ground terminals are located on the inside and outside of the device.
Ground connection
Grounded clamp, which is grounded via a grounding system.
1.2.3 Tool symbols
Open-ended wrench
1.2.4 Symbols for certain types of Information
Permitted
Procedures, processes or actions that are permitted.
Forbidden
Procedures, processes or actions that are forbidden.
Tip
Indicates additional information
Reference to documentation
1.
,
2.
,
3.
Series of steps
Cerabar PMC21 IO-Link About this document
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Reference to page:
Result of an individual step:
1.2.5 Symbols in graphics
A, B, C ... View
1, 2, 3 ... Item numbers
1.
,
2.
,
3.
Series of steps
1.3 Documentation
The following types of documentation are available in the Download Area of the Endress
+Hauser website (www.endress.com/downloads):
For an overview of the scope of the associated Technical Documentation, refer to the
following:
•Device Viewer (www.endress.com/deviceviewer): Enter the serial number from the
nameplate
•Endress+Hauser Operations app: Enter serial number from nameplate or scan
matrix code on nameplate.
1.3.1 Technical Information (TI)
Planning aid
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)
Guide that takes you quickly to the 1st measured value
The Brief Operating Instructions contain all the essential information from incoming
acceptance to initial commissioning.
1.3.3 Safety Instructions (XA)
Depending on the approval, the following Safety Instructions (XA) are supplied with the
device. They are an integral part of the Operating Instructions.
The nameplate indicates the Safety Instructions (XA) that are relevant to the device.
1.3.4 Functional Safety Manual (FY)
Depending on the SIL approval, the Functional Safety Manual (FY) is an integral part of
the Operating Instructions and applies in addition to the Operating Instructions, Technical
Information and ATEX Safety Instructions.
The different requirements that apply for the protective function are described in the
Functional Safety Manual (FY).
About this document Cerabar PMC21 IO-Link
6 Endress+Hauser
1.4 Terms and abbreviations
URL OPLMWP
LRL
0
p
LRV URV
1
2
3
4
A0029505
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. Observe pressure-temperature dependency. The OPL may
only be applied for a short 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. Observe pressure-temperature dependency. The maximum working pressure
may be applied at the device for an unlimited period. The MWP can be found on the nameplate.
3 The maximum sensor measuring range corresponds to the span between the LRL and URL. This sensor
measuring range is equivalent to the maximum calibratable/adjustable span.
4 The calibrated/adjusted span corresponds to the span between the 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 Example - see the following section.
The turn down is preset in the factory and can be changed.
1.5 Turn down calculation
LRV URLURV
LRL
1 = 2 3
A0029545
1 Calibrated/adjusted span
2 Zero point-based span
3 Upper range limit
Cerabar PMC21 IO-Link About this document
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Example
• Sensor: 10 bar (150 psi)
• Upper range limit (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.
1.6 Registered trademarks
is a registered trademark of the IO-Link Consortium.
Basic safety instructions Cerabar PMC21 IO-Link
8 Endress+Hauser
2 Basic safety instructions
2.1 Requirements for the personnel
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 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.
The operating personnel must fulfill the following requirements:
‣Are instructed and authorized according to the requirements of the task by the facility's
owner-operator.
‣Follow the instructions in this manual.
2.2 Designated use
2.2.1 Application and media
The device 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 listed in this manual.
Measured process variable
Gauge pressure or absolute pressure
Calculated process variable
Pressure
2.2.2 Incorrect use
The manufacturer is not liable for damage caused by using the device incorrectly or for
purposes for which it was not intended.
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.
Danger of burns from contact with surfaces!
‣For elevated process temperatures, ensure protection against contact to prevent burns.
Cerabar PMC21 IO-Link Basic safety instructions
Endress+Hauser 9
2.3 Workplace safety
When working on and with the device:
‣Wear the required personal protective equipment as per national regulations.
‣Switch off the supply voltage before connecting the device.
2.4 Operational safety
Risk of injury!
‣Operate the device only if it is in proper technical condition, free from errors and faults.
‣The operator is responsible for ensuring trouble-free operation of the device.
Modifications to the device
Unauthorized modifications to the device are not permitted and can lead to unforeseeable
dangers:
‣If modifications are nevertheless required, consult with Endress+Hauser.
Hazardous area
To eliminate danger to persons or the facility when the device is used in the hazardous
area (e.g., pressure equipment safety):
‣Check the nameplate to verify if the device ordered can be put to its intended use in the
hazardous area.
2.5 Product safety
This 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 EC
directives listed in the device-specific EC Declaration of Conformity. Endress+Hauser
confirms this by affixing the CE mark to the device.
Product description Cerabar PMC21 IO-Link
10 Endress+Hauser
3 Product description
3.1 Product design
Overview Item Description
C - 1
A0021987
C - 1 M12 plug
Housing cap made of plastic
D
E
A0027226
D
E
Housing
Process connection (sample illustration)
3.2 Operating principle
3.2.1 Calculating the pressure
Devices with ceramic process membrane (Ceraphire®)
The ceramic sensor is an oil-free sensor, i.e. the process pressure acts directly on the
robust ceramic process membrane and causes it to deflect. A pressure-dependent change
in capacitance is measured at the electrodes of the ceramic substrate and the process
membrane. The measuring range is determined by the thickness of the ceramic process
membrane.
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