Endress+Hauser Cerabar PMC11 Manual

Pressure transducer with ceramic and metal
sensors
Application
The Cerabar is a pressure transducer for the measurement of absolute and gauge
pressure in gases, vapors, liquids and dust. The Cerabar can be used internationally
thanks to a wide range of approvals and process connections.
Your benefits
• High reproducibility and long-term stability
• Reference accuracy: up to 0.3%
• Customized measuring ranges
– Turn down up to 5:1
– Sensor for measuring ranges up to 400 bar (6 000 psi)
• Housing and process isolating diaphragm made of 316L
Products Solutions Services
Technical Information
Cerabar PMC11, PMC21,
PMP11, PMP21
Process pressure measurement
TI01133P/00/EN/06.18
71404630

Cerabar PMC11, PMC21, PMP11, PMP21
2 Endress+Hauser
Table of contents
Document information ....................... 4
Document function ............................ 4
Symbols used ................................ 4
Documentation ............................... 5
Terms and abbreviations ........................ 6
Turn down calculation .......................... 7
Function and system design ................... 8
Measuring principle - process pressure measurement ..... 8
Measuring system ............................. 8
Device features ............................... 9
Product design .............................. 11
System integration ........................... 12
Input .................................... 13
Measured variable ............................ 13
Measuring range ............................ 13
Output .................................. 16
Output signal ............................... 16
Signal range 4 to 20 mA ........................ 16
Load (for 4 to 20 mA devices ) .................... 16
Load resistance (for 0 to 10 V devices) .............. 16
Signal on alarm 4 to 20 mA ...................... 16
Dead time, time constant ....................... 16
Dynamic behavior ............................ 17
Power supply ............................. 18
Terminal assignment .......................... 18
Supply voltage .............................. 18
Current consumption and alarm signal .............. 18
Power supply fault ............................ 19
Electrical connection .......................... 19
Cable specification ............................ 19
Residual ripple .............................. 19
Influence of power supply ....................... 19
Overvoltage protection ........................ 19
Performance characteristics of ceramic process
isolating diaphragm ........................ 20
Reference operating conditions ................... 20
Measuring uncertainty for small absolute pressure
measuring ranges ............................ 20
Influence of the installation position ................ 20
Resolution ................................. 20
Reference accuracy ........................... 20
Thermal change of the zero output and the output span ... 20
Long-term stability ........................... 21
Switch-on time .............................. 21
Performance characteristics of metal process
isolating diaphragm ........................ 22
Reference operating conditions ................... 22
Measuring uncertainty for small absolute pressure
measuring ranges ............................ 22
Influence of the installation position ................ 22
Resolution ................................. 22
Reference accuracy ........................... 22
Thermal change of the zero output and the output span ... 22
Long-term stability ........................... 22
Switch-on time .............................. 22
Installation ............................... 23
Installation conditions ......................... 23
Influence of the installation position ................ 23
Mounting location ............................ 23
Mounting instructions for oxygen applications ......... 24
Environment .............................. 26
Ambient temperature range ..................... 26
Storage temperature range ...................... 26
Climate class ............................... 26
Degree of protection .......................... 26
Vibration resistance ........................... 26
Electromagnetic compatibility .................... 26
Process .................................. 27
Process temperature range for devices with ceramic
process isolating diaphragm ..................... 27
Process temperature range for devices with metallic
process isolating diaphragm ..................... 27
Pressure specifications ......................... 28
Mechanical construction .................... 29
Design, dimensions ........................... 29
Electrical connection .......................... 29
Housing ................................... 30
Process connections with internal, ceramic process
isolating diaphragm ........................... 32
Process connections with internal, ceramic process
isolating diaphragm ........................... 33
Process connections with internal, ceramic process
isolating diaphragm ........................... 34
Process connections with internal, ceramic process
isolating diaphragm ........................... 34
Process connections with internal, metal process isolating
diaphragm ................................. 35
Process connections with internal, metal process isolating
diaphragm ................................. 36
Process connections with internal, metal process isolating
diaphragm ................................. 37
Process connections with internal, metal process isolating
diaphragm ................................. 37
Process connections with flush-mounted, metal process
isolating diaphragm ........................... 38
Materials in contact with process .................. 39
Materials not in contact with process ............... 40
Cleaning .................................. 41
Operability ............................... 42
Plug-on display PHX20 (optional) .................. 42
Certificates and approvals ................... 43
CE mark ................................... 43

Cerabar PMC11, PMC21, PMP11, PMP21
Endress+Hauser 3
RoHS ..................................... 43
RCM-Tick marking ............................ 43
EAC conformity .............................. 43
Approval .................................. 43
Safety Instructions (XA) ........................ 43
Marine approval (pending) ...................... 44
Pressure Equipment Directive 2014/68/EU (PED) ....... 44
Other standards and guidelines ................... 44
CRN approval ............................... 45
Calibration unit .............................. 45
Calibration ................................. 45
Inspection certificates .......................... 45
Ordering information ....................... 46
Scope of delivery ............................. 46
Accessories ............................... 47
Weld-in adapter ............................. 47
Plug-on display PHX20 ......................... 47
M12 plug connectors .......................... 47
Documentation ............................ 48
Field of Activities ............................ 48
Technical Information ......................... 48
Operating Instructions ......................... 48
Brief Operating Instructions ..................... 48
Safety Instructions (XA) ........................ 48

Cerabar PMC11, PMC21, PMP11, PMP21
4 Endress+Hauser
Document information
Document function 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.
Symbols used 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
NOTICE!
This symbol contains information on procedures and other facts which do not result in
personal injury.
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.
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.
Reference to documentation
A
Reference to page
Reference to graphic
Visual inspection
Symbols in graphics
Symbol Meaning
1, 2, 3 ... Item numbers
,… ,
1. 2. 3.
Series of steps
A, B, C, ... Views

Cerabar PMC11, PMC21, PMP11, PMP21
Endress+Hauser 5
Documentation The document types listed are available:
In the Download Area of the Endress+Hauser Internet site: www.endress.com → Download
Brief Operating Instructions (KA): getting the 1st measured value quickly
These instructions contain all the essential information from incoming acceptance to initial
commissioning.
Operating Instructions (BA): your comprehensive reference
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.
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.
Device Directive Documentation Option 1)
PMP21 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
FM IS Cl. I, Div.1 Gr. A-D T4 XA01321P FA
PMC21
PMP21
CSA C/US IS Cl. I Div. 1 Gr. A-D XA01322P CB
PMC21
PMP21
EAC Ex ia IIC T4 Ga/Gb XA01540P GA
PMC21
PMP21
IEC Ex ia IIC T4 Ga/Gb XA01271P IA
PMC21
PMP21
NEPSI Ex ia IIC T4 XA01363P NA
PMC21
PMP21
TIIS Ex ia IIC T4 In preparation TA
1) Product Configurator order code for "Approval"
The nameplate indicates the Safety Instructions (XA) that are relevant to the device.

Cerabar PMC11, PMC21, PMP11, PMP21
6 Endress+Hauser
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
→  28 .
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 →  28 .
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.

Cerabar PMC11, PMC21, PMP11, PMP21
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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
8 Endress+Hauser
Function and system design
Measuring principle -
process pressure
measurement
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 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.
Advantages:
• Guaranteed overload resistance up to 40 times the nominal pressure
• The ultrapure 99.9% ceramic (Ceraphire®, see also "www.endress.com/ceraphire") ensures:
– Extremely high chemical durability
– High mechanical durability
• Can be used in absolute vacuum
• Small measuring ranges
1234
p
A0020465
1 Air pressure (gauge pressure sensors)
2 Ceramic substrate
3 Electrodes
4 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.
Advantages:
• Can be used for high process pressures
• Fully welded sensor
• Slim, flush-mounted process connections available
p
1
3
4
2
A0016448
1 Silicon measuring element, substrate
2 Wheatstone bridge
3 Channel with fill fluid
4 Metal process isolating diaphragm
Measuring system A complete measuring system comprises:

Cerabar PMC11, PMC21, PMP11, PMP21
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123
A0021926
1 PLC (programmable logic control)
2 e.g. RN221N / RMA42 (if required)
3 Pressure transducer
Device features Field of application
• PMC11: Gauge pressure
• PMP11: Gauge pressure
• PMC21: Gauge and absolute pressure
• PMP21: Gauge and absolute pressure
Process connections
PMC11:
• Thread ISO 228
• Thread ASME
• DIN 13
PMP11:
• Thread ISO 228, also flush-mount
• Thread ASME
• DIN 13
PMC21:
• Thread ISO 228
• Thread DIN 13
• Thread ASME
• Thread JIS
PMP21:
• Thread ISO 228, also flush-mount
• Thread DIN 13
• Thread ASME
• Thread JIS
Measuring ranges
• PMC11: from –400 to +400 mbar (–6 to +6 psi) to –1 to +40 bar (–15 to +600 psi).
• PMP11: from –400 to +400 mbar (–6 to +6 psi) to –1 to +40 bar (–15 to +600 psi).
• PMC21: from –100 to +100 mbar (–1.5 to +1.5 psi) to –1 to +40 bar (–15 to +600 psi).
• PMP21: from –400 to +400 mbar (–6 to +6 psi) to –1 to +400 bar (–15 to +6 000 psi).
OPL (depends on the measuring range)
• PMC11: max. 0 to +60 bar (0 to +900 psi)
• PMP11: max. 0 to +160 bar (0 to +2 400 psi)
• PMC21: max. 0 to +60 bar (0 to +900 psi)
• PMP21: max. 0 to +600 bar (0 to +9 000 psi)
MWP
• PMC11: max. 0 to +60 bar (0 to +900 psi)
• PMP11: max. 0 to +160 bar (0 to +2 400 psi)
• PMP21: max. 0 to +600 bar (0 to +9 000 psi)
• PMC21: max. 0 to +60 bar (0 to +900 psi)
Process temperature range (temperature at process connection)
• PMC11: –25 to +85 °C (–13 to +185 °F)
• PMP11: –25 to +85 °C (–13 to +185 °F)
• PMC21: –25 to +100 °C (–13 to +212 °F)
• PMP21: –40 to +100 °C (–40 to +212 °F)

Cerabar PMC11, PMC21, PMP11, PMP21
10 Endress+Hauser
Ambient temperature range
PMC11: –40 to +70 °C (–40 to +158 °F)
PMP11: –40 to +70 °C (–40 to +158 °F)
PMC21:
• –40 to +85 °C (–40 to +185 °F)
• Devices for hazardous areas: –40 to +70 °C (–40 to +158 °F)
PMP21:
–40 to +85 °C (–40 to +185 °F)
Reference accuracy
• PMC11: up to 0.5 %, TD 5:1, for details, see "Reference accuracy" section.
• PMP11: up to 0.5 %, TD 5:1, for details, see "Reference accuracy" section.
• PMC21: up to 0.3 %, TD 5:1, for details, see "Reference accuracy" section.
• PMP21: up to 0.3 %, TD 5:1, for details, see "Reference accuracy" section.
Supply voltage
PMC11:
• 4 to 20 mA output: 10 to 30V DC
• 0 to 10 V output: 12 to 30V DC
PMP11:
• 4 to 20 mA output: 10 to 30V DC
• 0 to 10 V output: 12 to 30V DC
PMC21:
10 to 30 V DC
PMP21:
10 to 30 V DC
Output
PMC11:
• 4 to 20 mA
• 0 to 10 V
PMP11:
• 4 to 20 mA
• 0 to 10 V
PMC21:
4 to 20 mA
PMP21:
4 to 20 mA
Material
PMC11:
• Housing made from 316L (1.4404)
• Process connections made from 316L
• Process isolating diaphragm made from Al2O3 aluminum oxide ceramic, (Ceraphire®), ultrapure
99.9 %
PMP11:
• Housing made from 316L (1.4404)
• Process connections made from 316L (1.4404)
• Process isolating diaphragm made from 316L (1.4435)
PMC21:
• Housing made from 316L (1.4404)
• Process connections made from 316L
• Process isolating diaphragm made from Al2O3 aluminum-oxide ceramic, (Ceraphire®), ultrapure
99.9 %
PMP21:
• Housing made from 316L (1.4404)
• Process connections made from 316L (1.4404)
• Process isolating diaphragm made from 316L (1.4435)

Cerabar PMC11, PMC21, PMP11, PMP21
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Options
PMC11:
• Certificate of calibration
• Cleaned from oil+grease
PMP11:
• Certificate of calibration
• Cleaned from oil+grease
PMC21:
• Ex approvals
• Marine certificate
• Min. alarm current setting
• 3.1 Material certificates
• Certificate of calibration
• Cleaned from oil+grease
• Cleaned for O2 service
PMP21:
• Ex approvals
• Marine certificate
• Min. alarm current setting
• 3.1 Material certificates
• Certificate of calibration
• Cleaned from oil+grease
Product design
Overview Position Description
A Valve plug
B Cable
A
A0027231
B
A0027232
C - 1
A0021987
C - 2
A0027289
C- 1 M12 plug
Housing cap made of plastic
C- 2 M12 plug
For Ex ec and IP69: metal housing cap
D
E
A0027226
D
E
A0027215
D
E
Housing
Process connection (sample illustration)

Cerabar PMC11, PMC21, PMP11, PMP21
12 Endress+Hauser
System integration The device can be given a tag name (max. 32 alphanumeric characters).
Designation Option 1)
Measuring point (TAG), see additional specifications Z1
1) Product Configurator order code for "Marking"

Cerabar PMC11, PMC21, PMP11, PMP21
Endress+Hauser 13
Input
Measured variable Measured process variable
• PMC11: Gauge pressure
• PMP11: Gauge pressure
• PMC21: Gauge pressure or absolute pressure
• PMP21: Gauge pressure or absolute pressure
Calculated process variable
Pressure
Measuring range Ceramic process isolating diaphragm
Sensor Device Maximum
Sensor measuring range
Lowest
calibratable
span 1)
MWP OPL Factory settings 2) Option 3)
lower (LRL) upper (URL)
[bar (psi)] [bar (psi)] [bar (psi)] [bar (psi)] [bar (psi)]
Devices for gauge pressure measurement
100 mbar (1.5 psi) 4) PMC21 –0.1 (–1.5) +0.1 (+1.5) 0.02 (0.3) 2.7 (40.5) 4 (60) 0 to 100 mbar (0 to 1.5 psi) 1C
250 mbar (4 psi) 5) PMC21 –0.25 (–4) +0.25 (+4) 0.05 (1) 3.3 (49.5) 5 (75) 0 to 250 mbar (0 to 4 psi) 1E
400 mbar (6 psi) 6) PMC11
PMC21
–0.4 (–6) +0.4 (+6) 0.08 (1.2) 5.3 (79.5) 8 (120) 0 to 400 mbar (0 to 6 psi) 1F
1 bar (15 psi) 6) PMC11
PMC21
–1 (–15) +1 (+15) 0.2 (3) 6.7 (100.5) 10 (150) 0 to 1 bar (0 to 15 psi) 1H
2 bar (30 psi) 6) PMC11
PMC21
–1 (–15) +2 (+30) 0.4 (6) 12 (180) 18 (270) 0 to 2 bar (0 to 30 psi) 1K
4 bar (60 psi) 6) PMC11
PMC21
–1 (–15) +4 (+60) 0.8 (12) 16.7 (250.5) 25 (375) 0 to 4 bar (0 to 60 psi) 1M
6 bar (90 psi) 6) PMC11
PMC21
–1 (–15) +6 (+90) 2.4 (36) 26.7 (400.5) 40 (600) 0 to 6 bar (0 to 90 psi) 1N
10 bar (150 psi) 6) PMC11
PMC21
–1 (–15) +10 (+150) 2 (30) 26.7 (400.5) 40 (600) 0 to 10 bar (0 to 150 psi) 1P
16 bar (240 psi) 6) PMC11
PMC21
–1 (–15) +16 (+240) 6.4 (96) 40 (600) 60 (900) 0 to 16 bar (0 to 240 psi) 1Q
25 bar (375 psi) 6) PMC11
PMC21
–1 (–15) +25 (+375) 10 (150) 40 (600) 60 (900) 0 to 25 bar (0 to 375 psi) 1R
40 bar (600 psi) 6) PMC11
PMC21
–1 (–15) +40 ([phone] (600) 60 (900) 0 to 40 bar (0 to 600 psi) 1S

Cerabar PMC11, PMC21, PMP11, PMP21
14 Endress+Hauser
Sensor Device Maximum
Sensor measuring range
Lowest
calibratable
span 1)
MWP OPL Factory settings 2) Option 3)
lower (LRL) upper (URL)
[bar (psi)] [bar (psi)] [bar (psi)] [bar (psi)] [bar (psi)]
Devices for absolute pressure measurement
100 mbar (1.5 psi) 6) PMC21 0 +0.1 (+1.5) 0.1 (1.5) 2.7 (40.5) 4 (60) 0 to 100 mbar (0 to 1.5 psi) 2C
250 mbar (4 psi) 6) PMC21 0 +0.25 (+4) 0.25 (4) 3.3 (49.5) 5 (75) 0 to 250 mbar (0 to 4 psi) 2E
400 mbar (6 psi) 6) PMC21 0 +0.4 (+6) 0.4 (6) 5.3 (79.5) 8 (120) 0 to 400 mbar (0 to 6 psi) 2F
1 bar (15 psi) 6) PMC21 0 +1 (+15) 0.4 (6) 6.7 (100.5) 10 (150) 0 to 1 bar (0 to 15 psi) 2H
2 bar (30 psi) 6) PMC21 0 +2 (+30) 0.4 (6) 12 (180) 18 (270) 0 to 2 bar (0 to 30 psi) 2K
4 bar (60 psi) 6) PMC21 0 +4 (+60) 0.8 (12) 16.7 (250.5) 25 (375) 0 to 4 bar (0 to 60 psi) 2M
10 bar (150 psi) 6) PMC21 0 +10 (+150) 2 (30) 26.7 (400.5) 40 (600) 0 to 10 bar (0 to 150 psi) 2P
40 bar (600 psi) 6) PMC21 0 +40 ([phone] (600) 60 (900) 0 to 40 bar (0 to 600 psi) 2S
1) Highest turn down that can be set at the factory: 5:1. The turn down is preset and cannot be changed.
2) Other measuring ranges (e.g. –1 to +5 bar (–15 to 75 psi)) can be ordered with customer-specific settings (see the Product Configurator, order
code for "Calibration; Unit" option "J"). It is possible to invert the output signal (LRV = 20 mA; URV = 4 mA). Prerequisite: URV < LRV
3) Product Configurator, order code for "Sensor range"
4) Vacuum resistance: 0.7 bar (10.5 psi) abs
5) Vacuum resistance: 0.5 bar (7.5 psi) abs
6) Vacuum resistance: 0 bar (0 psi) abs
Maximum turn down which can be ordered for absolute pressure and gauge pressure sensors
Devices for gauge pressure measurement
• 6 bar (90 psi), 16 bar (240 psi), 25 bar (375 psi): TD 1:1 to TD 2.5:1
• All other measuring ranges: TD 1:1 to TD 5:1
Devices for absolute pressure measurement
• 100 mbar (1.5 psi), 250 mbar (4 psi), 400 mbar (6 psi): TD 1:1
• 1 bar (15 psi): TD 1:1 to TD 2.5:1
• All other measuring ranges: TD 1:1 to TD 5:1

Cerabar PMC11, PMC21, PMP11, PMP21
Endress+Hauser 15
Metal process isolating diaphragm
Sensor Device Maximum
Sensor measuring range
Lowest
calibratable
span 1)
MWP OPL Factory settings 2) Option 3)
lower (LRL) upper (URL)
[bar (psi)] [bar (psi)] [bar (psi)] [bar (psi)] [bar (psi)]
Devices for gauge pressure measurement
400 mbar (6 psi) 4) PMP11
PMP21
–0.4 (–6) +0.4 (+6) 0.4 (6) 1 (15) 1.6 (24) 0 to 400 mbar (0 to 6 psi) 1F
1 bar (15 psi) 4) PMP11
PMP21
–1 (–15) +1 (+15) 0.4 (6) 2.7 (40.5) 4 (60) 0 to 1 bar (0 to 15 psi) 1H
2 bar (30 psi) 4) PMP11
PMP21
–1 (–15) +2 (+30) 0.4 (6) 6.7 (100.5) 10 (150) 0 to 2 bar (0 to 30 psi) 1K
4 bar (60 psi) 4) PMP11
PMP21
–1 (–15) +4 (+60) 0.8 (12) 10.7 (160.5) 16 (240) 0 to 4 bar (0 to 60 psi) 1M
6 bar (90 psi) 4) PMP11
PMP21
–1 (–15) +6 (+90) 2.4 (36) 16 (240) 24 (360) 0 to 6 bar (0 to 90 psi) 1N
10 bar (150 psi) 4) PMP11
PMP21
–1 (–15) +10 ([phone] (375) 40 (600) 0 to 10 bar (0 to 150 psi) 1P
16 bar (240 psi) 4) PMP11
PMP21
–1 (–15) +16 ([phone] (375) 64 (960) 0 to 16 bar (0 to 240 psi) 1Q
25 bar (375 psi) 4) PMP11
PMP21
–1 (–15) +25 ([phone] (375) 100 (1500) 0 to 25 bar (0 to 375 psi) 1R
40 bar (600 psi) 4) PMP11
PMP21
–1 (–15) +40 ([phone] (1500) 160 (2400) 0 to 40 bar (0 to 600 psi) 1S
100 bar (1 500 psi) 4) PMP21 –1 (–15) +100 (+1500) 20 (300) 100 (1500) 160 (2400) 0 to 100 bar (0 to 1 500 psi) 1U
400 bar (6 000 psi) 4) PMP21 –1 (–15) +400 (+6000) 80 (1200) 400 (6000) 600 (9000) 0 to 400 bar (0 to 6 000 psi) 1W
Devices for absolute pressure measurement
400 mbar (6 psi) 4) PMP21 0 (0) 0.4 (+6) 0.4 (6) 1 (15) 1.6 (24) 0 to 400 mbar (0 to 6 psi) 2F
1 bar (15 psi) 4) PMP21 0 (0) 1 (+15) 0.4 (6) 2.7 (40.5) 4 (60) 0 to 1 bar (0 to 15 psi) 2H
2 bar (30 psi) 4) PMP21 0 (0) 2 (+30) 0.4 (6) 6.7 (100.5) 10 (150) 0 to 2 bar (0 to 30 psi) 2K
4 bar (60 psi) 4) PMP21 0 (0) 4 (+60) 0.8 (12) 10.7 (160.5) 16 (240) 0 to 4 bar (0 to 60 psi) 2M
10 bar (150 psi) 4) PMP21 0 (0) 10 ([phone] (375) 40 (600) 0 to 10 bar (0 to 150 psi) 2P
40 bar (600 psi) 4) PMP21 0 (0) +40 ([phone] (1500) 160 (2400) 0 to 40 bar (0 to 600 psi) 2S
100 bar (1 500 psi) 4) PMP21 0 (0) +100 (+1500) 20 (300) 100 (1500) 160 (2400) 0 to 100 bar (0 to 1 500 psi) 2U
400 bar (6 000 psi) 4) PMP21 0 (0) +400 (+6000) 80 (1200) 400 (6000) 600 (9000) 0 to 400 bar (0 to 6 000 psi) 2W
1) Highest turn down that can be set at the factory: 5:1. The turn down is preset and cannot be changed.
2) Other measuring ranges (e.g. –1 to +5 bar (–15 to 75 psi)) can be ordered with customer-specific settings (see the Product Configurator, order
code for "Calibration; Unit" option "J"). It is possible to invert the output signal (LRV = 20 mA; URV = 4 mA). Prerequisite: URV < LRV
3) Product Configurator, order code for "Sensor range"
4) Vacuum resistance: 0.01 bar (0.145 psi) abs
Maximum turn down which can be ordered for absolute pressure and gauge pressure sensors
Device Range 400 mbar (6 psi) 1 bar (15 psi)
6 bar (90 psi)
16 bar (240 psi)
2 bar (30 psi)
4 bar (60 psi)
10 bar (150 psi)
25 to 400 bar (375 to 6 000 psi)
PMP11 0.5% TD 1:1 TD 1:1 to TD 2.5:1 TD 1:1 to TD 5:1
PMP21 0.3% TD 1:1 TD 1:1 to TD 2.5:1 TD 1:1 to TD 5:1

Cerabar PMC11, PMC21, PMP11, PMP21
16 Endress+Hauser
Output
Output signal Designation Option 1)
4 to 20 mA (2-wire) 1
PMC11: 0 to 10 V output (3-wire)
PMP11: 0 to 10 V output (3-wire)
2
1) Product Configurator, order code for "Output"
Signal range 4 to 20 mA 3.8 mA to 20.5 mA
Load (for 4 to 20 mA
devices )
In order to guarantee sufficient terminal voltage in two-wire devices, a maximum load resistance RL
(including line resistance) must not be exceeded depending on the supply voltage UB of the supply
unit.
[ ]W
30
20
10
1068
614
U
[V]
1
RLmax
B
2RLmax
£-U 6.5V
22mA
B
A0029452
1 Power supply 10 to 30 V DC
2 RLmax Maximum load resistance
UBSupply voltage
Load resistance (for 0 to 10 V
devices)
The load resistance must be ≥ 5 [kΩ].
Signal on alarm 4 to 20 mA The response of the output to error is regulated in accordance with NAMUR NE43.
Factory setting MAX alarm: >21 mA
alarm current
Device Description Option
PMC21
PMP21
Adjusted min. alarm current IA 1)
1) Product Configurator order code for "Service"
Dead time, time constant Presentation of the dead time and the time constant:
I
63 %
100 %
t
t1t2
90 %
t3
A0019786

Cerabar PMC11, PMC21, PMP11, PMP21
Endress+Hauser 17
Dynamic behavior Dead time (t1) [ms] Time constant (T63), t2 [ms] Time constant (T90), t3 [ms]
6 ms 10 ms 15 ms

Cerabar PMC11, PMC21, PMP11, PMP21
18 Endress+Hauser
Power supply
LWARNING
Limitation of electrical safety due to incorrect connection!
‣In accordance with IEC/EN61010 a separate circuit breaker must be provided for the device .
‣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, HF influences and overvoltage peaks are integrated.
‣The device must be operated with a 500 mA fine-wire fuse (slow-blow).
Terminal assignment 4 to 20 mA output
Device M12 plug Valve plug Cable
PMC11
PMP11
PMC21
PMP21
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
0 to 10 V output
Device M12 plug Valve plug Cable
PMC11
PMP11
L–
L+
21
3
0.5A
A0017576
L–
L+
1
2
3
4
0.5A
A0022822
-
Supply voltage Electronic version Device Supply voltage
4 to 20 mA output PMC11
PMP11
PMC21
PMP21
10 to 30 V DC
0 to 10 V output PMC11
PMP11
12 to 30 V DC
Current consumption and
alarm signal Number of wires Device Normal operation Alarm signal 1)
2 PMC11
PMP11
PMC21
PMP21
≤ 26 mA > 21 mA
3 PMC11
PMP11
< 12 mA 11 V
1) For MAX alarm (factory setting)

Cerabar PMC11, PMC21, PMP11, PMP21
Endress+Hauser 19
Power supply fault • Behavior in the event of overvoltage (>30 V):
The device works continuously up to 34 V DC without damage. If the supply voltage is exceeded,
the specified characteristics are no longer guaranteed.
• Behavior in the event of undervoltage:
If the supply voltage falls below the minimum value, the device switches off in a defined manner
(status same as for no power supply).
Electrical connection Degree of protection
Device Connection Degree of protection Option 1)
PMP21
PMP21
Cable5 m (16 ft) IP66/68 2) NEMA type 4X/6P enclosure A
PMP21
PMP21
Cable10 m (33 ft) IP66/68 2) NEMA type 4X/6P enclosure B
PMP21
PMP21
Cable25 m (82 ft) IP66/68 2) NEMA type 4X/6P enclosure C
PMC11
PMP11
M12 plug IP65 NEMA type 4X enclosure L
PMC21
PMP21
M12 plug IP65/67 NEMA type 4X enclosure M
PMC11
PMP11
PMC21
PMP21
Valve plug ISO4400 M16 IP65 NEMA type 4X enclosure U
PMC11
PMP11
PMC21
PMP21
Valve plug ISO4400 NPT ½ IP65 NEMA type 4X enclosure V
1) Product Configurator order code for "Electrical connection"
2) IP 68 (1.83m H2O for 24 h)
Cable specification For valve plug: < 1.5 mm2 (16 AWG) and Ø4.5 to 10 mm (0.18 to 0.39 in)
Residual ripple The device operates within the reference accuracy up to ±5 % of the residual ripple of the supply
voltage, within the permitted voltage range.
Influence of power supply ≤0.005 % of the URL/1 V
Overvoltage protection The device does not contain any special elements to protect against overvoltage ("wire to ground").
Nevertheless the requirements of the applicable EMC standard EN 61000-4-5 (testing voltage 1kV
EMC wire/ground) are met.

Cerabar PMC11, PMC21, PMP11, PMP21
20 Endress+Hauser
Performance characteristics of ceramic process isolating
diaphragm
Reference operating
conditions
• As per IEC 60770
• Ambient temperature TA = constant, in the range of:+21 to +33 °C (+70 to +91 °F)
• Humidity φ = constant, in the range of 5 to 80 % rH
• Ambient pressure pA = constant, in the range of:860 to 1 060 mbar (12.47 to 15.37 psi)
• Position of measuring cell = constant, in range: horizontal ±1° (see also "Influence of the
installation position" section →  23)
• Zero based span
• Material of process isolating diaphragm: Al2O3 (aluminum-oxide ceramic, Ceraphire®)
• Supply voltage: 24 V DC ±3 V DC
• Load: 320 Ω (at 4 to 20 mA output)
Measuring uncertainty for
small absolute pressure
measuring ranges
The smallest extended uncertainty of measurement that can delivered by our standards is:
• in range 1 to 30 mbar (0.0145 to 0.435 psi): 0.4 % of reading
• in range < 1 mbar (0.0145 psi): 1 % of reading.
Influence of the installation
position
→  23
Resolution Current output: min. 1.6 μA
Reference accuracy The reference accuracy contains the non-linearity [DIN EN 61298-2 3.11] including the pressure
hysteresis [DIN EN 61298-23.13] and non-repeatability [DIN EN 61298-2 3.11] in accordance with
the limit point method as per [DIN EN 60770].
Device % of the calibrated span to the maximum turn down
Reference accuracy Non-linearity 1) Non-repeatability
PMC11 2) ±0.5 ±0.1 ±0.1
PMC21 ±0.3 ±0.1 ±0.1
1) The non-linearity for the 40 bar (600 psi) sensor can be up to ± 0.15% of the calibrated span up to the
maximum turn down.
2) For devices with 0 to 10 V output, a non-linearity of up to max. 0.3 V can occur for signal values below
0.03 V.
Overview of the turn down ranges →  14
Measuring ranges Turn down Device % of URL
100 mbar (1.5 psi)to
40 bar (600 psi)
1:1 to TD 5:1 PMC11 ±0.5
PMC21 ±0.3 1)
1) For the 100 mbar (1.5 psi) and 250 mbar (4 psi) measuring ranges, the following applies: In the event of
heat effects on the initial reference conditions, an additional deviation of max. 0.3 mbar (4.5 psi) from the
zero point or the output span is possible.
Thermal change of the zero
output and the output span Measuring cell –20 to +85 °C (–4 to +185 °F) –40 to –20 °C (–40 to –4 °F)
+85 to +100 °C (+185 to +212 °F)
% of URL for TD 1:1
<1 bar (15 psi) <1 <1.2
≥ 1 bar (15 psi) <0.8 <1