BA02050P/00/EN/05.24-00
71647858
2024-03-26

Products

Solutions

Valid as of version
01.00.zz (Device firmware)

Operating Instructions
Cerabar PMC51B
Process pressure measurement
Analog4-20 mA Analog

ServicesCerabar PMC51B Analog

1.

Order code: XXXXX-XXXXXX
Ser. no.:XXXXXXXXXXXX
Ext. ord. cd.: XXX.XXXX.XX

Serial number

2. www.endress.com/deviceviewer

Endress+Hauser
Operations App

3.

A0023555• Make sure the document is stored in a safe place such that it is always available whenworking on or with the device• 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 toworking procedures
The manufacturer reserves the right to modify technical data without prior notice. The
Endress+Hauser sales organization will supply you with current information and updates
to these instructions.

2

Endress+Hauser

Cerabar PMC51B Analog

Table of contents

Table of contents
9.2
9.3
9.4
9.5
9.6

Diagnostic information on local display . . . . . . 32
Diagnostic list . . . . . . . . . . . . . . . . . . . . . . . . 32
Event logbook . . . . . . . . . . . . . . . . . . . . . . . . 35
Device reset . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Firmware history . . . . . . . . . . . . . . . . . . . . . . 38

10

Maintenance . . . . . . . . . . . . . . . . . . . . . . 39

10.1

Maintenance work . . . . . . . . . . . . . . . . . . . . . 39

11

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

1

About this document . . . . . . . . . . . . . . . 4

1.1
1.2
1.3
1.4
1.5
1.6

Document function . . . . . . . . . . . . . . . . . . . . . 4
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
List of abbreviations . . . . . . . . . . . . . . . . . . . . . 6
Turn down calculation . . . . . . . . . . . . . . . . . . . 6
Documentation . . . . . . . . . . . . . . . . . . . . . . . . 7
Registered trademarks . . . . . . . . . . . . . . . . . . . 7

2

Basic safety instructions . . . . . . . . . . . . 8

2.1
2.2
2.3
2.4
2.5

Requirements for the personnel . . . . . . . . . . . . 8
Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Workplace safety . . . . . . . . . . . . . . . . . . . . . . . 8
Operational safety . . . . . . . . . . . . . . . . . . . . . . 8
Product safety . . . . . . . . . . . . . . . . . . . . . . . . . 9

11.1 General information . . . . . . . . . . . . . . . . . . . 40
11.2 Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . 40
11.3 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
11.4 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

3

Product description . . . . . . . . . . . . . . . 10

12

3.1

Product design . . . . . . . . . . . . . . . . . . . . . . . 10

12.1 Device-specific accessories . . . . . . . . . . . . . . . 42
12.2 Device Viewer . . . . . . . . . . . . . . . . . . . . . . . . 42

4

Incoming acceptance and productidentification . . . . . . . . . . . . . . . . . . . . . 12

4.1
4.2
4.3

Incoming acceptance . . . . . . . . . . . . . . . . . . . 12
Product identification . . . . . . . . . . . . . . . . . . . 12
Storage and transport . . . . . . . . . . . . . . . . . . 13

13.1 Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
13.2 Environment . . . . . . . . . . . . . . . . . . . . . . . . . 44
13.3 Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

5

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . 14

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

5.1
5.2
5.3

Mounting requirements . . . . . . . . . . . . . . . . . 14
Mounting the device . . . . . . . . . . . . . . . . . . . 16
Post-mounting check . . . . . . . . . . . . . . . . . . . 21

6

Electrical connection . . . . . . . . . . . . . . 22

6.1
6.2
6.3
6.4

Connecting requirements . . . . . . . . . . . . . . .
Connecting the device . . . . . . . . . . . . . . . . . .
Ensuring the degree of protection . . . . . . . . .
Post-connection check . . . . . . . . . . . . . . . . . .

7

Operation options . . . . . . . . . . . . . . . . . 27

7.1
7.2

Operating keys and DIP switches on theelectronic insert . . . . . . . . . . . . . . . . . . . . . . . 27
local display . . . . . . . . . . . . . . . . . . . . . . . . . 27

8

Commissioning . . . . . . . . . . . . . . . . . . . 28

8.1
8.2
8.3
8.4

Preliminaries . . . . . . . . . . . . . . . . . . . . . . . . 28
Function check . . . . . . . . . . . . . . . . . . . . . . . 28
Configuring the device . . . . . . . . . . . . . . . . . . 28
Protecting settings from unauthorizedaccess . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

9Diagnosis and troubleshooting . . . . . 30

9.1

General troubleshooting . . . . . . . . . . . . . . . . . 30

Endress+Hauser

13

Accessories . . . . . . . . . . . . . . . . . . . . . . . 42

Technical data . . . . . . . . . . . . . . . . . . . . 43

22
22
26
26

3

About this document

Cerabar PMC51B Analog

1

About this document

1.1

Document function

These Operating Instructions contain all the information that is required in various phasesof the life cycle of the device: from product identification, incoming acceptance andstorage, to mounting, connection, operation and commissioning through totroubleshooting, 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 inserious or fatal injury.
WARNING

This symbol alerts you to a dangerous situation. Failure to avoid this situation can result inserious or fatal injury.
CAUTION

This symbol alerts you to a dangerous situation. Failure to avoid this situation can result inminor or medium injury.
NOTICE

This symbol contains information on procedures and other facts which do not result inpersonal injury.

1.2.2

Electrical symbols

Ground connection:
Terminal for connection to the grounding system.

1.2.3

Symbols for certain types of information

Permitted:
Procedures, processes or actions that are permitted.
Forbidden:
Procedures, processes or actions that are forbidden.

4

Endress+Hauser

Cerabar PMC51B Analog

About this document

Additional information:
Reference to documentation:
Reference to page:
Series of steps: 1. , 2. , 3.
Result of an individual step:

1.2.4

Symbols in graphics

Item numbers: 1, 2, 3 ...
Series of steps: 1. , 2. , 3.
Views: A, B, C, ...

1.2.5

Symbols on the device

Safety instructions:Observe the safety instructions contained in the associated Operating Instructions.

Endress+Hauser

5About this document

Cerabar PMC51B Analog

1.3

List of abbreviations
1

2

3

4
p
LRL

0
LRV

URL

URV

MWP

OPL
A0029505

1

OPL: The OPL (overpressure limit = measuring cell overload limit) for the 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. Pay attention to the pressure/temperature dependency.
2
The MWP (maximum working pressure) for the measuring cells depends on the lowest-rated element, withregard to pressure, of the selected components, i.e. the process connection has to be taken into considerationin addition to the measuring cell. Pay attention to the pressure/temperature dependency. The MWP may be
applied at the device for an unlimited period of time. The MWP can be found on the nameplate.
3
The maximum measuring range corresponds to the span between the LRL and URL. This measuring range isequivalent 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.
pPressure
LRL Lower range limit
URL Upper range limit
LRV Lower range value
URV Upper range value
TD Turn down. Example - see the following section.

1.4

Turn down calculation
1=2

3
URV

LRL LRV

URL

A0029545

1
2
3

Calibrated/adjusted span
Zero point-based span
Upper range limit

Example:• Measuring cell: 10 bar (150 psi)
• Upper range limit (URL) = 10 bar (150 psi)
• 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

6

=

URL
|URV

-

LRV|

Endress+Hauser

Cerabar PMC51B Analog

About this document

In this example, the TD is therefore 2:1. This measuring span is based on the zero point.

1.5

Documentation

All available documents can be downloaded using:• the serial number of the device (see cover page for description) or• the data matrix code of the device (see cover page for description) or• the "Downloads" area of the website www.endress.com

1.5.1

Supplementary device-dependent documentation

Additional documents are supplied depending on the device version ordered: Always
comply strictly with the instructions in the supplementary documentation. The
supplementary documentation is an integral part of the device documentation.

1.6

Registered trademarks

KALREZ®
Registered trademark of DuPont Performance Elastomers L.L.C., Wilmington, USA

Endress+Hauser

7Basic safety instructions

Cerabar PMC51B Analog

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 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)‣ Follow instructions and comply with conditions
The operating personnel must fulfill the following requirements:‣ Being instructed and authorized according to the requirements of the task by thefacility's owner-operator‣ Following the instructions in these Operating Instructions

2.2

Intended use

The Cerabar 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-intended use.
Verification for borderline cases:‣ For special fluids and fluids for cleaning, Endress+Hauser is glad to provide assistancein verifying the corrosion resistance of fluid-wetted materials, but does not accept any
warranty or liability.

2.3

Workplace safety

When working 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 only if it is in proper technical condition, free from errors and faults.
‣ The operator is responsible for the interference-free operation of the device.
Modifications 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.
RepairTo ensure continued operational safety and reliability:‣ Carry out repairs on the device only if they are expressly permitted.
‣ Observe federal/national regulations pertaining to the repair of an electrical device.
‣ Use original spare parts and accessories from Endress+Hauser only.
8

Endress+Hauser

Cerabar PMC51B Analog

Basic safety instructions

Hazardous area
To eliminate the risk of danger to persons or the facility when the device is used in theapproval-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 theapproval-related area.
‣ Observe the specifications in the separate supplementary documentation that is an
integral part of these Instructions.

2.5

Product safety

This device is designed in accordance with good engineering practice to meet state-of-theart safety requirements, has been tested, and left the factory in a condition in which it issafe 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.

Endress+Hauser

9Product description

Cerabar PMC51B Analog

3

Product description

3.1

Product design

3.1.1

Ceramic membrane (Ceraphire®)

1

2

3

4

5
p
A0043088

1
2
3
4
5
p

Atmospheric pressure (gauge pressure measuring cells)
Ceramic meter body
Electrodes
Ceramic membrane
Seal
Pressure

The ceramic measuring cell is an oil-free measuring cell. The pressure acts directly on therobust ceramic membrane, causing it to deflect. A pressure-dependent change incapacitance is measured at the electrodes of the ceramic meter body and the membrane.
The measuring range is determined by the thickness of the ceramic membrane.
Advantages:• High overload resistance• Thanks to ultrapure 99.9 % ceramic• Extremely high chemical durability• Resistant to abrasion and corrosion• High mechanical durability• Suitable for vacuum applications

3.1.2

Level measurement (level, volume and mass):ph= ρ ghA0038343

h
p
ρ
g

10

Height (level)
PressureDensity of the medium
Gravitational acceleration

Endress+Hauser

Cerabar PMC51B Analog

Product description

Advantages:• Volume and mass measurements in any vessel shape with a freely programmablecharacteristic curve• Has a wide range of uses, e.g.
• For foam formation• In vessels with agitators or screen fittings• For liquid gases

Endress+Hauser

11Incoming acceptance and product identification

Cerabar PMC51B Analog

4

Incoming acceptance and productidentification

4.1

Incoming acceptance
DELIVERY NOTE

1=2

A0016870• Is the order code on the delivery note (1) identical to the order code on the productsticker (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) provided?
If you can answer "no" to any of these questions, please contact Endress+Hauser.

4.1.1

Scope of delivery

The scope of delivery comprises:• Device• Optional accessories
Accompanying documentation:• Brief Operating Instructions• Final inspection report• Additional Safety Instructions for devices with approvals (e.g. ATEX, IECEx, NEPSI, etc.)• Optional: factory calibration form, test certificates
The Operating Instructions are available on the Internet at:
www.endress.com → Download

4.2

Product identification

The following options are available for identification of the device:• Nameplate specifications• Order code with breakdown of the device features on the delivery note
• Enter the serial numbers from the nameplates in Device Viewer(www.endress.com/deviceviewer): all the information about the device is displayed.

4.2.1

Manufacturer address

Endress+Hauser SE+Co. KG
Hauptstraße 179689 Maulburg, Germany
Place of manufacture: See nameplate.

12

Endress+Hauser

Cerabar PMC51B Analog

Incoming acceptance and product identification

4.2.2

NameplateDifferent nameplates are used depending on the device version.
The nameplates contain the following information:• Manufacturer name and device name
• Address of the certificate holder and country of manufacture• Order code and serial number• Technical data
• Approval-specific information
Compare the data on the nameplate with your order.

4.3

Storage and transport

4.3.1

Storage conditions• Use the original packaging• Store the device in clean and dry conditions and protect from damage caused by shocks
Storage temperature range
See Technical Information.

4.3.2

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 device to the measuring point in the original packaging.

Endress+Hauser

13

Mounting

Cerabar PMC51B Analog

5

Mounting

5.1

Mounting requirements

5.1.1

General instructions• Do not clean or touch the membrane with hard and/or pointed objects.
• Do not remove the protection on the membrane until just before installation.
Always firmly tighten the housing cover and the cable entries.
1.

Counter-tighten the cable entries.

2.

Tighten the coupling nut.

5.1.2

Installation instructions• The devices are mounted according to the same guidelines as pressure gauges (DIN
EN837-2)• To ensure optimal readability of the local display, adjust the housing and local display• Endress+Hauser offers a mounting bracket to mount the device on pipes or walls• Use flushing rings for flanges if there is a risk of medium buildup or clogging at theprocess connection• The flushing ring is clamped between the process connection and process• Material buildup in front of the membrane is flushed away, and the pressure chamber
is vented, via the two lateral flushing holes• When measuring in media containing solids (e.g. dirty liquids), installing separators anddrain valves is useful for capturing and removing sediment• Using a valve manifold allows for easy commissioning, installation and maintenancewithout interrupting the process• When mounting the device, establishing the electrical connection and during operation:
prevent the penetration of moisture into the housing• Point the cable and plug downwards as much as possible to prevent moisture fromentering (e.g. rainwater or condensation)

5.1.3

Installation instructions for thread• Device with G 1 ½" thread:Place the flat seal on the sealing surface of the process connection
Avoid additional strain on the membrane: do not seal the thread with hemp or similarmaterials• Device with NPT thread:• Wrap Teflon tape around the thread to seal it• Tighten the device at the hexagon bolt only; do not turn it by the housing• When screwing in, do not overtighten the thread; tighten the NPT thread to therequired depth according to the standard• For the following process connections, a tightening torque of max. 40 Nm (29.50 lbf ft)
is specified:• Thread ISO228 G ½" with flush membrane• Thread DIN13 M20 x 1.5 with flush membrane• NPT 3/4" with flush membrane

14

Endress+Hauser

Cerabar PMC51B Analog

Mounting

Mounting devices with PVDF thread

LWARNING
Risk of damage to process connection!
Risk of injury!
‣ Devices with a PVDF thread must be installed with the mounting bracket provided!
‣ PVDF is only intended for metal-free applications!

LWARNING
Material fatigue from pressure and temperature!
Risk of injury if parts burst! The thread can become loose if exposed to high pressure andtemperature loads.
‣ Check the leak-tight integrity of the thread regularly.
‣ Use Teflon tape to seal the ½" NPT thread.

5.1.4

Orientation

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. As a result of this, moisture can enter the measuring cell via thepressure compensation element (1).
‣ Mount the device as follows.
1

1

1

1
A0038723• Keep the pressure compensation element (1) free from contamination• A position-dependent zero point shift (when the vessel is empty the measured value
does not display zero) can be corrected• The use of shutoff devices and/or water pocket pipes is recommended for mounting• The orientation depends on the measuring application

Endress+Hauser

15

Mounting

Cerabar PMC51B Analog

5.2

Mounting the device

5.2.1

Pressure measurement in gases
1
2

A0038730

12

DeviceShutoff device

Mount the device with the shutoff device above the tapping point so that any condensate
can flow into the process.

5.2.2

Pressure measurement in steam

1
2

4
2

3
1

A0038731

12
3
4

DeviceShutoff device
U-shaped siphon
O-shaped siphon

Observe the maximum permitted ambient temperature of the transmitter!
Mounting:• Ideally, mount the device with the O-shaped siphon below the tapping point
The device may also be mounted above the tapping point• Fill the siphon with liquid before commissioning
Advantages of using siphons:• Protects the measuring device from hot, pressurized media due to the formation andcollection of condensate• Attenuation of water hammer• The defined water column only causes minimal (negligible) measured errors andminimal (negligible) thermal effects on the device
For technical data (e.g. materials, dimensions or order numbers), see the accessory
document SD01553P.

16

Endress+Hauser

Cerabar PMC51B Analog

Mounting

5.2.3

Pressure measurement in liquids

2
1
A0038732

1
2

DeviceShutoff device

Mount the device with the shutoff device below or at the same level as the tapping point.

5.2.4

Level measurement

A0038733• Always mount 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• Mount the device downstream from a shutoff device: the calibration and function checkcan be carried out more easily

5.2.5

Oxygen applications (gaseous)

Oxygen and other gases can react explosively to oils, grease and plastics. The following
precautions must be taken:• All components of the system, such as devices, must be cleaned in accordance withnational requirements.
• Depending on the materials used, a certain maximum temperature and a maximum
pressure must not be exceeded for oxygen applications.
The cleaning of the device (not accessories) is provided as an optional service.

Endress+Hauser

17

Mounting

Cerabar PMC51B Analog

Devices with measuring cells, nominal value < 10 bar (150 psi)
• pmax: Over pressure limit (OPL) of the measuring cell and depending on the processconnection used
• Devices with PVDF thread:• Only mount with the enclosed mounting bracket!
• pmax: 15 bar (225 psi)
• Tmax: 60 °C (140 °F)
Devices with measuring cells, nominal value ≥ 10 bar (150 psi)
• pmax: 40 bar (600 psi)
• Tmax: 60 °C (140 °F)

5.2.6

Seal for flange mounting

NOTICE
Seal pressing against the membrane!
Incorrect measurement results!
‣ Ensure that the seal is not touching the membrane.
1

2

A0017743

1
2

Membrane
Seal

5.2.7

Mounting bracket for device or separate housing

The device or the separate housing can be mounted on walls or pipes (for pipes with adiameter of 1 ¼" to 2") using the mounting bracket.

122 (4.8)
158 (6.22)

ø6 (0.24)

52 (2.05)

86 (3.39)

70 (2.76)

ø42...60 (1.65...2.36)

140 (5.51)
175 (6.89)
A0028493

Unit of measurement mm (in)18

Endress+Hauser

Cerabar PMC51B Analog

Mounting

Ordering information:• Can be ordered via the Product Configurator• Can be ordered as a separate accessory, part number 71102216
The mounting bracket is included in the delivery if you order the device with aseparate housing.
When mounting on a pipe, tighten the nuts on the bracket uniformly with a torque of atleast 5 Nm (3.69 lbf ft).

5.2.8

Assembling and mounting the separate housing

1
2
1
3
4
5
6
6
r ³ 120 (4.72)

7A0038728

Unit of measurement mm (in)
1
2
3
4
5
6
7

Housing mounted with housing adapter, included
Mounting bracket provided, suitable for pipe and wall mounting (for pipe diameters from 1 ¼" to 2")
Locking screw
Plug
Pressure compensation
Cable with connection jackIn the separate housing version, the measuring cell is delivered with the process connection and cable already
mounted.

Assembly and mounting

Endress+Hauser

1.

Insert the connector (item 4) into the corresponding connection jack of the cable(item 6).

2.

Insert the cable with the socket (item 6) into the housing adapter (item 1) to the end
stop.

3.

Tighten the locking screw (item 3).

4.

Mount the housing on a wall or pipe with the mounting bracket (item 2). Whenmounting on a pipe, tighten the nuts on the bracket uniformly with a torque of atleast 5 Nm (3.69 lbf ft). Mount the cable with a bending radius (r) ≥120 mm (4.72 in).

19

Mounting

Cerabar PMC51B Analog

5.2.9

Turning the display module
3.

1.
4 0.7 Nm

2.

4.

A0038224

LWARNING
Supply voltage switched on!
Risk of electric shock and/or explosion!
‣ Switch off the supply voltage before opening the device.

LCAUTION
Dual-compartment housing: When opening the terminal compartment cover, fingers
can get trapped between the cover and the pressure compensation filter.
‣ Open the cover slowly.
1.

If fitted: release the screw of the cover lock for the electronics compartment coverusing the Allen key.

2.

Unscrew the electronics compartment cover from the transmitter housing and checkthe cover seal.

3.

Press the release mechanism and remove the display module.

4.

Turn the display module to the desired position: maximum 4 × 90 ° in each direction.
Fit the display module on the electronics compartment in the desired position until itclicks into place. Screw the electronics compartment cover back onto the transmitter
housing. If provided: tighten the screw of the cover lock using the Allen key
0.7 Nm (0.52 lbf ft) ±0.2 Nm (0.15 lbf ft).

5.2.10

Closing the housing covers

NOTICE
Thread and housing cover damaged from dirt and fouling!
‣ Remove dirt (e.g. sand.) on the thread of the cover and housing.
‣ If you continue to encounter resistance when closing the cover, check the thread again
for fouling.
Housing thread
The threads of the electronics and connection compartment can be coated with ananti-friction coating.
The following applies for all housing materials:
Do not lubricate the housing threads.

5.2.11

Turning the housing

The housing can be rotated up to 380° by loosening the locking screw.
Your benefits• Easy mounting due to optimum alignment of housing• Easily accessible device operation• Optimum readability of the onsite display (optional)

20

Endress+Hauser

Cerabar PMC51B Analog

Mounting

1
A0043807

1

Locking screw

NOTICEThe housing cannot be unscrewed fully.
‣ Loosen the external locking screw by a maximum of 1.5 turns. If the screw isunscrewed too much or completely (beyond the screw anchor point), small parts(counter disk) can become loose and fall out.
Tightenthe securing screw (hex socket 4 mm (0.16 in)) with maximum‣
3.5 Nm (2.58 lbf ft) ± 0.3 Nm (0.22 lbf ft).

5.3

Post-mounting check Is the device undamaged (visual inspection)?
Are the measuring point identification and labeling correct (visual inspection)?
 Is the device protected against precipitation and direct sunlight?
 Are the securing screws and cover lock tightened securely?
 Does the measuring device meet the measuring point specifications?
For example:• Process temperature• Process pressure• Ambient temperature• Measuring range

Endress+Hauser

21

Electrical connection

Cerabar PMC51B Analog

6

Electrical connection

6.1

Connecting requirements

6.1.1

Potential equalization

The protective ground on the device must not be connected. If necessary, the potential
matching line can be connected to the outer ground terminal of the device before thedevice is connected.

1A0045411

1

Ground terminal for connecting the potential matching line

LWARNING
Explosion Hazard!
‣ Please refer to the separate documentation on applications in hazardous areas for thesafety instructions.
For optimum electromagnetic compatibility:• Keep the potential matching line as short as possible• Maintain a cross-section of at least 2.5 mm2 (14 AWG)

6.2

Connecting the device
1

A00438061

Connection compartment cover

Housing thread
The threads of the electronics and connection compartment can be coated with ananti-friction coating.
The following applies for all housing materials:
Do not lubricate the housing threads.

6.2.1

Supply voltage• Ex d, Ex e, non-Ex: supply voltage: 10.5 to 35 VDC• Ex i: supply voltage: 10.5 to 30 VDC
The power unit must be safety-approved (e.g. PELV, SELV, Class 2) and must comply
with the relevant protocol specifications. For 4 to 20 mA, the same requirements
apply as for HART.

22

Endress+Hauser

Cerabar PMC51B Analog

Electrical connection

6.2.2

Terminals• Supply voltage and internal ground terminal: 0.5 to 2.5 mm2 (20 to 14 AWG)
• External ground terminal: 0.5 to 4 mm2 (20 to 12 AWG)

6.2.3

Cable specification• Protective ground or grounding of the cable shield: rated cross-section > 1 mm2 (17AWG)
Rated cross-section of 0.5 mm2 (20 AWG) to 2.5 mm2 (13 AWG)
• Cable outer diameter: Ø5 to 12 mm (0.2 to 0.47 in) depends on the cable gland used(see Technical Information)

6.2.4

4-20 mA
1

2
3
Y
I

+

+

-

mA
4
A0028908

1
1
2
3
4

Block diagram
DeviceLoadPower supply
multimeter

6.2.5

Overvoltage protection

Devices without optional overvoltage protection
Equipment from Endress+Hauser fulfills the requirements of the product standard IEC /DIN EN 61326-1 (Table 2 Industrial Environment).
Depending on the type of port (DC power supply, input/output port) different testing levels
according to IEC / DIN EN 61326-1 against transient overvoltages (Surge) are applied(IEC / DIN EN 61000-4-5 Surge):
Test level on DC power ports and input / output ports is 1000 V line to earth
Overvoltage category
Overvoltage category II

Endress+Hauser

23

Electrical connection

Cerabar PMC51B Analog

6.2.6

Wiring

LWARNING
Supply voltage might be connected!
Risk of electric shock and/or explosion!
‣ If the device is used in hazardous areas, comply with national standards and thespecifications in the Safety Instructions (XAs). Use the specified cable gland.
‣ The supply voltage must match the specifications on the nameplate.
‣ Switch off the supply voltage before connecting the device.
‣ If necessary, the potential matching line can be connected to the outer ground terminalof the transmitter before the device is connected.
A‣ suitable circuit breaker should be provided for the device in accordance with IEC/EN
61010.
‣ The cables must be adequately insulated, with due consideration given to the supply
voltage and the overvoltage category.
‣ The connecting cables must offer adequate temperature stability, with due
consideration given to the ambient temperature.
‣ Only operate the device with the covers closed.
‣ Protective circuits against reverse polarity, HF influences and overvoltage peaks areintegrated.
Connect the device in the following order:
1.

Release the cover lock (if provided).

2.

Unscrew the cover.

3.

Guide the cables into the cable glands or cable entries.

4.

Connect the cables.

5.

Tighten the cable glands or cable entries so that they are leak-tight. Counter-tighten
the housing entry. Use a suitable tool with width across flats AF24/25
8 Nm (5.9 lbf ft) for the M20 cable gland.

6.

Screw the cover securely back onto the connection compartment.

7.

If fitted: tighten the screw of the cover lock using the Allen key 0.7 Nm (0.52 lbf ft)±0.2 Nm (0.15 lbf ft).

6.2.7

Terminal assignment

Single compartment housing

3
2

-

1

+

A0042594

2
1
2
3

24

Connection terminals and ground terminal in the connection compartment
Positive terminal
Negative terminalInternal ground terminal

Endress+Hauser

Cerabar PMC51B Analog

Electrical connection

Dual compartment housing

- +

3

2 1
A0042803

3123Connection terminals and ground terminal in the connection compartment
Positive terminal
Negative terminalInternal ground terminal

6.2.8

Cable entries

1

2

A0045413

1
2

Cable entry
Dummy plug

The type of cable entry depends on the device version ordered.
Always route connecting cables downwards so that moisture cannot penetrate theconnection compartment.
If necessary, create a drip loop or use a weather protection cover.

6.2.9

Available device plugs

In the case of devices with a plug, it is not necessary to open the housing forconnection purposes.
Use the enclosed seals to prevent the penetration of moisture into the device.

Endress+Hauser

25

Electrical connection

Cerabar PMC51B Analog

Devices with M12 plug

4

3

1

2
A0011175

1
2
3
4

Signal +Not assigned
Signal –Ground6.3

Ensuring the degree of protection

6.3.1

Cable entries• Gland M20, plastic, IP66/68 TYPE 4X/6P• Gland M20, brass nickel plated, IP66/68 TYPE 4X/6P• Gland M20, 316L, IP66/68 TYPE 4X/6P• Thread M20, IP66/68 TYPE 4X/6P• Thread G1/2, IP66/68 TYPE 4X/6P
If the G1/2 thread is selected, the device is delivered with an M20 thread as standard
and a G1/2 adapter is included with the delivery, along with the corresponding
documentation• Thread NPT1/2, IP66/68 TYPE 4X/6P• Dummy plug transport protection: IP22, TYPE 2• *Cable 5 m, IP66/68 TYPE 4X/6P pressure compensation via cable• *Valve plug ISO4400 M16, IP65 TYPE 4X• HAN7D plug, 90 degrees, IP65 NEMA Type 4X• M12 plug
When housing is closed and connecting cable is plugged in: IP66/67, NEMA Type 4X
When housing is open or connecting cable is not plugged in: IP20, NEMA Type 1
NOTICEM12 plug and HAN7D plug: incorrect mounting can invalidate the IP protection class!
‣ The degree of protection only applies if the connecting cable used is plugged in andscrewed tight.
‣ The degree of protection only applies if the connecting cable used is specified according
to IP67, NEMA Type 4X.
‣ The IP protection classes are only maintained if the dummy cap is used or the cable isconnected.

6.4

Post-connection check

After wiring the device, perform the following checks:
 Is the potential matching line connected?
 Is the terminal assignment correct?
 Are the cable glands and dummy plugs leak-tight?
 Are the fieldbus connectors properly secured?
 Are the covers screwed down correctly?

26

Endress+Hauser

Cerabar PMC51B Analog

Operation options

7

Operation options

7.1

Operating keys and DIP switches on the electronic
insert1
2
Span/II

off on

Display

off ondamping

Zero/I

4 3
A0039344

1
2
3
4Operating key for lower range value (Zero)
Operating key for upper range value (Span)
DIP switch for damping
DIP switch for locking and unlocking the device

The setting of the DIP switches has priority over the settings made via other operation
methods (e.g. FieldCare/DeviceCare).

7.2

local display

7.2.1

Device display (optional)

Functions:
Display of measured values and fault and notice messages
The device displays are available with the additional option of Bluetooth® wirelesstechnology.
4

5

1
2
3

A0047140

4
1
2
3
4
5

Endress+Hauser

Segment display
Measured value (up to 5 digits)
Bar graph proportional to the current output
Unit of measured value
Locked (symbol appears when the device is locked)
Measured value output in %27

Commissioning

Cerabar PMC51B Analog

8

Commissioning

8.1

Preliminaries

The measuring range and the unit in which the measured value is transmitted correspondto the data on the nameplate.

LWARNING
Process pressure above or below permitted maximum/minimum!
Risk of injury if parts burst! Warnings are displayed if the pressure is too high.
‣ If a pressure smaller than the minimum permitted pressure or greater than the
maximum permitted pressure is present at the device, a message is output.
‣ Only use the device within the measuring range limits!

8.1.1

As-delivered state

If no customized settings were ordered:• Calibration values defined by defined measuring cell nominal value• The alarm current is set to min. (3.6 mA), (only if no other option was selected whenordering)• DIP switch to Off position

8.2

Function check

Perform a function check before putting the measuring point into operation:• "Post-installation check" checklist (see the "Installation" section)• "Post-connection check" checklist (see the "Electrical connection" section)

8.3

Configuring the device

8.3.1

Commissioning with keys on the electronic insert

The following functions are possible via the keys on the electronic insert:• Position adjustment (zero point correction)
The orientation of the device may cause a pressure shift
This pressure shift can be corrected by a position adjustment• Setting the lower range value and upper range value
The pressure applied must be within the nominal pressure limits of the sensor (see thespecifications on the nameplate)• Resetting the device
Carrying out position adjustment1.

Device installed in desired position and no pressure applied.

2.

Press the "Zero" and "Span" keys simultaneously for at least 3 s.

3.

When the LED lights up briefly, the pressure present has been accepted for position
adjustment.

Setting the lower range value (pressure or scaled variable)

28

1.

The desired pressure for the lower range value is present at the device.

2.

Press the "Zero" key for at least 3 s.

3.

When the LED lights up briefly, the pressure present has been accepted for the lower
range value.
Endress+Hauser

Cerabar PMC51B Analog

Commissioning

Setting the upper range value (pressure or scaled variable)
1.

The desired pressure for the upper range value is present at the device.

2.

Press the "Span" key for at least 3 s.

3.

When the LED lights up briefly, the pressure present has been accepted for the upper
range value.

4.

Does the LED on the electronic insert not light up?
 Applied pressure for upper range value has not been accepted.
Wet calibration is not possible if the Scaled variable option has been selected in
the Assign PV parameter and the Table option has been selected in the Scaled
variable transfer function parameter.

Checking the settings (pressure or scaled variable)
1.

Press the "Zero" key briefly (approx. 1 second) in order to display the lower range
value.

2.

Press the "Span" key briefly (approx. 1 second) in order to display the upper range
value.

3.

Briefly press the "Zero" and "Span" keys simultaneously (approx. 1 second) in order todisplay the position offset.

Resetting the device‣ Press and hold the "Zero" and "Span" keys simultaneously for at least 12 seconds.

8.4

Protecting settings from unauthorized access

8.4.1

Hardware locking or unlocking

DIP switch 1 on the electronic insert is used to lock or unlock operation.
If operation is locked via the DIP switch, the key symbol  appears on the local display.
Sealing the device
The housing cover is designed to be sealed for use in custody transfer.
A

B

C

A0038742

A
B

Endress+Hauser

Single compartment housing
Dual compartment housing

29

Diagnosis and troubleshooting

Cerabar PMC51B Analog

9Diagnosis and troubleshooting

9.1

General troubleshooting

9.1.1

General errors

Device not responding• Possible cause: Supply voltage does not match the specification on the nameplate
Remedial action: Apply the correct voltage• Possible cause: The polarity of the supply voltage is wrong
Remedial action: Correct the polarity• Possible cause: The cables do not contact the terminals properly
Remedial action: Check the electrical contact between cables and correct if necessary• Possible cause: Load resistance too highRemedial action: Increase the supply voltage to reach the minimum terminal voltage
No values visible on the display• Possible cause: The plug of the display cable is not connected correctly
Remedial action: Connect the plug correctly• Possible cause: Display is defective
Remedial action: Replace the display

9.1.2

MeasuresTake the following measures if an error message is displayed:• Check the cable/power supply• Check the plausibility of the pressure value• Restart the device• Perform a reset (the device may need to be reconfigured)If the measures do not rectify the problem, contact your Endress+Hauser office.

30

Endress+Hauser

Cerabar PMC51B Analog

Diagnosis and troubleshooting

9.1.3

Additional tests

If no clear cause of the error can be identified or the source of the problem can be both thedevice and the application, the following additional tests can be performed:
1.

Check the digital pressure value (display, , .. ).

2.

Check that the device concerned is functioning correctly. Replace the device if thedigital value does not correspond to the expected pressure value.

3.

Switch on the simulation and check the current output. Replace the main electronics
if the current output does not correspond to the simulated value.

9.1.4

Response of output to errors

In the event of an error, the current output adopts the value ≤3.6 mA (3.6 mA factory
setting).
3.6 mA is the min. alarm, max. alarm can be ordered (21.5 to 23 mA).

Endress+Hauser

31

Diagnosis and troubleshooting

Cerabar PMC51B Analog

9.2

Diagnostic information on local display

9.2.1

Diagnostic message

Measured value display and diagnostic message in alarm condition
Faults detected by the device's self-monitoring system are displayed as a diagnostic
message in alternation with the unit.

1

X

2
A0043759

1
2

Status signal
Status symbol with diagnostic event

Status signals
F"Failure (F)" option
A device error has occurred. The measured value is no longer valid.
C"Function check (C)" option
The device is in the service mode (e.g. during a simulation).
S"Out of specification (S)" option
The device is being operated:• Outside of its technical specifications (e.g. during startup or a cleaning)• Outside of the configuration performed by the user (e.g. level outside configured span)
M"Maintenance required (M)" option
Maintenance required. The measured value remains valid.

9.3

32

Diagnostic list

Endress+Hauser

Cerabar PMC51B Analog

Diagnosis and troubleshooting

9.3.1

List of diagnostic events

Diagnostic
numberShort text

Remedy instructions

Statussignal[from thefactory]

Diagnostic
behavior[from thefactory]

Diagnostic of sensor
062

Sensor connection faulty

Check sensor connection

F

Alarm

081

Sensor initialization
faulty1. Restart device
2. Contact service

F

Alarm

100

Sensor error

1. Restart the device
2. Contact Endress+Hauser Service

F

Alarm

101

Sensor temperature

1. Check process temperature
2. Check ambient temperature

F

Alarm

102

Sensor incompatibleerror

1. Restart device
2. Contact service

F

Alarm

Diagnostic of electronic
203

HART Device
Malfunction

Check device specific diagnosis.

S

Warning204

HART Electronic DefectCheck device specific diagnosis.

F

Alarm

242

Firmware incompatible

1. Check software
2. Flash or change main electronic
module

F

Alarm

252

Module incompatible

1. Check if correct electronic
module is plugged
2. Replace electronic module

F

Alarm

263

Incompatibility detected

Check electronic module typeM

Warning

270

Main electronics
defective

Replace main electronics

F

Alarm

272

Main electronics faulty

1. Restart device
2. Contact service

F

Alarm

273

Main electronics
defective

Replace main electronics

F

Alarm

282

Data storage inconsistent Restart device

F

Alarm

283

Memory content
inconsistent

1. Restart device
2. Contact service

F

Alarm

287

Memory content
inconsistent

1. Restart device
2. Contact service

M

Warning388

Electronics andHistoROM defective

1. Restart device
2. Replace electronics andHistoROM
3. Contact service

F

Alarm

Diagnostic of configuration

Endress+Hauser

410

Data transfer failed

1. Retry data transfer
2. Check connection

F

Alarm

412

Processing download

Download active, please waitCWarning

420

HART Device
Configuration Locked

Check device locking configuration.

S

Warning

421

HART Loop Current fixed

Check Multi-drop mode or current
simulation.

S

Warning

431

Trim required

Carry out trim

C

Warning435

Linearization faulty

Check data points and min span

F

Alarm

33

Diagnosis and troubleshooting

Cerabar PMC51B Analog

Diagnostic
numberShort text

Remedy instructions

Statussignal[from thefactory]

Diagnostic
behavior[from thefactory]

437

Configuration
incompatible

1. Update firmware
2. Execute factory reset

F

Alarm

438

Dataset different

1. Check dataset file
2. Check device parameterization
3. Download new device
parameterization

M

Warning

441

Current output 1
saturated

1. Check process
2. Check current output settings

S

Warning

484

Failure mode simulation
activeDeactivate simulation

C

Alarm

485

Process variable
simulation active

Deactivate simulationC

Warning491

Current output
simulation active

Deactivate simulationC

Warning495

Diagnostic event
simulation active

Deactivate simulation

S

Warning

500

Process alert pressure

1. Check process pressure
2. Check configuration of process
alert

S

Warning 1)

501

Process alert scaled
variable

1. Check process conditions
2. Check scaled variableconfiguration

S

Warning 1)

502

Process alert temperature 1. Check process temperature
2. Check configuration of process
alert

S

Warning 1)

503

Zero adjustment

1. Check measuring range
2. Check position adjustment

M

WarningDiagnostic of process

34

801

Supply voltage too low

Increase supply voltage

F

Alarm

802

Supply voltage too highDecrease supply voltage

S

Warning805

Loop current faulty

1. Check wiring
2. Replace electronics

F

Alarm

806

Loop diagnostics

1. Check supply voltage
2. Check wiring and terminals

M

Warning 1)

807

No Baseline due to insuf.
volt. at 20 mA

Increase supply voltage

M

Warning822

Sensor temperature outof range

1. Check process temperature
2. Check ambient temperatureS

Warning 1)

825

Electronics temperature

1. Check ambient temperature
2. Check process temperatureS

Warning

841

Operating range

1. Check the process pressure
2. Check the sensor range

S

Warning 1)

846

HART Non-Primary
Variable Out of Limit

Check device specific diagnosis.

S

Warning

847

HART Primary Variable
Out of Limit

Check device specific diagnosis.

S

Warning

848

HART Device Variable
Alert

Check device specific diagnosis.

S

Warning

900

High signal noise
detected

1. Check impulse line
2. Check valve position
3. Check process

M

Warning 1)

Endress+Hauser

Cerabar PMC51B Analog

Diagnosis and troubleshooting

Diagnostic
number

1)

Short text

Remedy instructions

Statussignal[from thefactory]

Diagnostic
behavior[from thefactory]901

Low signal noise detected 1. Check impulse line
2. Check valve position
3. Check process

M

Warning 1)

902

Min signal noise detected 1. Check impulse line
2. Check valve position
3. Check process

M

Warning 1)

906

Out of range signal
detected

S

Warning 1)

1. Process Information. No action
2. Rebuild baseline
3. Adapt signal range thresholds

Diagnostic behavior can be changed.

9.4

Event logbook

9.4.1

Event history

The Event list submenu provides a chronological overview of the event messages thathave occurred 1).
Navigation path
Diagnostics → Event logbook
A maximum of 100 event messages can be displayed in chronological order.
The event history includes entries for:• Diagnostic events• Information events
In addition to the operating time when the event occurred, each event is also assigned asymbol that indicates whether the event has occurred or is finished:• Diagnostic event• : Occurrence of the event• : End of the event• Information event
: Occurrence of the event

9.4.2

Filtering the event logbook

Filters can be used to determine which category of event messages is displayed in the
Event list submenu.
Navigation path
Diagnostics → Event logbook

9.4.3

Overview of information events

Info number

1)

Info name

I1000--------(Device ok)

I1079

Sensor changed

I1089

Power on

I1090

Configuration reset

If operating via FieldCare, the event list can be displayed with the "Event List/HistoROM" function in FieldCare.

Endress+Hauser

35

Diagnosis and troubleshooting

Cerabar PMC51B Analog

Info number

Info name

I1091

Configuration changed

I11074

Device verification active

I1110

Write protection switch changed

I11104Loop diagnostics

I11284

DIP MIN setting to HW active

I11285

DIP SW setting active

I11341

SSD baseline created

I1151

History reset

I1154

Reset terminal voltage min/max

I1155

Reset electronics temperature

I1157

Memory error event list

I1256

Display: access status changed

I1264

Safety sequence aborted

I1335

Firmware changed

I1397

Fieldbus: access status changed

I1398

CDI: access status changed

I1440

Main electronic module changed

I1444

Device verification passed

I1445

Device verification failed

I1461

Sensor verification failed

I1512

Download started

I1513

Download finished

I1514

Upload started

I1515

Upload finished

I1551

Assignment error fixed

I1552

Failed: Main electronic verification

I1554

Safety sequence started

I1555

Safety sequence confirmed

I1556

Safety mode off

I1956

Reset

9.4.4

Overview of information events

Info number

36

Info name

I1000--------(Device ok)

I1079

Sensor changed

I1089

Power on

I1090

Configuration reset

I1091

Configuration changed

I11074

Device verification active

I1110

Write protection switch changed

I11104Loop diagnostics

I11284

DIP MIN setting to HW active

Endress+Hauser

Cerabar PMC51B Analog

Diagnosis and troubleshooting

Info number

Info name

I11285

DIP SW setting active

I11341

SSD baseline created

I1151

History reset

I1154

Reset terminal voltage min/max

I1155

Reset electronics temperature

I1157

Memory error event list

I1256

Display: access status changed

I1264

Safety sequence aborted

I1335

Firmware changed

I1397

Fieldbus: access status changed

I1398

CDI: access status changed

I1440

Main electronic module changed

I1444

Device verification passed

I1445

Device verification failed

I1461

Sensor verification failed

I1512

Download started

I1513

Download finished

I1514

Upload started

I1515

Upload finished

I1551

Assignment error fixed

I1552

Failed: Main electronic verification

I1554

Safety sequence started

I1555

Safety sequence confirmed

I1556

Safety mode off

I1956

Reset

9.5

Device reset

9.5.1

Resetting the device via electronic insert keys

Resetting Bluetooth password and user role (SW 1/1/2000 and higher)
15 s
I

I

I

I

Display

off onI

2×
A0050210

5Endress+Hauser

Sequence for resetting the password

37

Diagnosis and troubleshooting

Cerabar PMC51B Analog

Delete/reset the password
1.

Press operating key I three times.
 The reset password function is started, the LED flashes.

2.

Within 15 s, press operating key I once.
 The password is reset, and the LED flashes briefly.

If operating key I is not pressed within 15 s, the action is canceled and the LED goes out.
Resetting the device to the factory setting

Display

off on

12 s
I

I

II

II

50 ms
A0050009

6

Operating keys on the electronic insert

Resetting the device to the factory setting‣ Simultaneously press the I and II operating keys for at least 12 s.
 Device data are reset to the factory setting, the LED flashes briefly.

9.6

Firmware history
The firmware version can explicitly be ordered via the product structure. This makes it
possible to ensure the compatibility of the firmware version with an existing orplanned system integration.

9.6.1

Version 01.00.zz

Original software

9.6.2

Version 01.01.zz• Heartbeat Technology extended functionality• HART condensed status

38

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Cerabar PMC51B Analog

Maintenance

10

Maintenance

10.1

Maintenance work

This chapter describes the maintenance of physical device components.

10.1.1Pressure compensation filter

Keep the pressure compensation filter (1) free from contamination.

1
A0043756

1

Pressure compensation filter

10.1.2

Flushing rings

The use of flushing rings allows the membrane to be cleaned without removing thedevice from the process.
For more information: contact the Endress+Hauser sales office.

10.1.3Exterior cleaning

Notes on cleaning• The cleaning agents used should not corrode the surfaces and the seals• Mechanical damage to the membrane, e.g. due to sharp objects, must be avoided• Observe the degree of protection of the device

Endress+Hauser

39

Repair

Cerabar PMC51B Analog

11

Repair

11.1

General information

11.1.1

Repair concept

Under the Endress+Hauser repair concept, devices have a modular design and repairs arecarried out by Endress+Hauser Service or by properly trained customers.
Spare parts are grouped into logical kits with the associated replacement instructions.
For more information on service and spare parts contact Endress+Hauser Service.

11.1.2

Repair of Ex-certified devices

LWARNING
Incorrect repair can compromise electrical safety!
Explosion Hazard!
‣ Repairs to Ex-certified devices must be carried out by Endress+Hauser Service or by
specialist personnel according to national regulations.
‣ Relevant standards and national regulations on hazardous areas, safety instructions
and certificates must be observed.
‣ Use only original Endress+Hauser spare parts.
‣ Please note the device designation on the nameplate. Only identical parts may be used
as replacements.
Carryout repairs according to the instructions.
‣
Only
the
Endress+Hauser service team is permitted to modify a certified device and‣convert it to another certified version.

11.2

Spare parts• Some replaceable device components are identified by a spare part nameplate. This
contains information about the spare part.
• All the spare parts for the measuring device, along with the order code, are listed in the
Device Viewer (www.endress.com/deviceviewer) and can be ordered. If available, users
can also download the associated Installation Instructions.
Device serial number:• Located on the device and spare part nameplate.
• Can be read out via the device software.

40

Endress+Hauser

Cerabar PMC51B Analog

Repair

11.3

ReturnThe device must be returned in the event of a factory calibration, or if the wrong device has
been ordered or delivered.
As an ISO-certified company and also due to legal regulations, Endress+Hauser is obliged
to follow certain procedures when handling any returned products that have been incontact with medium. To ensure swift, safe and professional device returns, please readthe return procedures and conditions on the Endress+Hauser website
http://www.endress.com/support/return-material.

‣ Select country.
 The website of the responsible sales office opens with all the relevant information
relating to returns.
1.

If the desired country is not listed:
Click on the "Choose your location" link.
 An overview of Endress+Hauser sales offices and representatives opens.

2.

Contact the Endress+Hauser sales organization responsible for your area.

11.4

Disposal

If required by the Directive 2012/19/EU on waste electrical and electronicequipment (WEEE), the product is marked with the depicted symbol in order tominimize the disposal of WEEE as unsorted municipal waste. Do not dispose of
products bearing this marking as unsorted municipal waste. Instead, return them tothe manufacturer for disposal under the applicable conditions.

Endress+Hauser

41

Accessories

Cerabar PMC51B Analog

12

Accessories

12.1

Device-specific accessories

12.1.1

Mechanical accessories• Mounting bracket for housing• Mounting bracket for block & bleed valves• Block&Bleed valves:• Block&Bleed valves can be ordered as enclosed accessories (seal for mounting is
enclosed)• Block&Bleed valves can be ordered as mounted accessories (mounted manifolds aresupplied with a documented leak test)• Certificates (e.g. 3.1 material certificate and NACE) and tests (e.g. PMI and pressuretest) that are ordered with the device apply for the transmitter and the manifold• During the operating life of the valves, it may be necessary to re-tighten the pack
• Water pocket pipes (PZW)• Flushing rings• Weather protection covers
For technical data (e.g. materials, dimensions or order numbers), see the accessory
document SD01553P.

12.1.2Plug connectors• Plug connector M12 90 deg, IP67 5m cable, union nut, Cu Sn/Ni• Plug connector M12, IP67 union nut, Cu Sn/Ni• Plug connector M12, 90 deg IP67 union nut, Cu Sn/Ni
The IP protection classes are only maintained if the dummy cap is used or the cable isconnected.

12.1.3Weld-in accessory

For details, refer to TI00426F/00/EN "Weld-in adapters, process adapters andflanges".

12.2

Device Viewer

All the spare parts for the device, along with the order code, are listed in the Device Viewer(www.endress.com/deviceviewer).

42

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Cerabar PMC51B Analog

Output signal

Technical data

13

Technical data

13.1

OutputCurrent output
4 to 20 mA analog, 2-wire
The current output offers a choice of three different operating modes:• 4.0 to 20.5 mA• NAMUR NE 43: 3.8 to 20.5 mA (factory setting)• US mode: 3.9 to 20.8 mA

Signal on alarm

Signal on alarm in accordance with NAMUR recommendation NE 43.
4 to 20 mA analog:• Signal over-range: > 20.5 mA• Signal under-range: < 3.8 mA• Min alarm (< 3.6 mA, factory setting)Load

4 to 20 mA analog
R Lmax
[W]
1065

2

10.5
1

U – 10.5 V
R Lmax £ B
23 mA

35 UB
[V]
A0039234

1
2
UB

10.5 to 35 V power supply
RLmax maximum load resistance
Supply voltage

Damping

A damping affects all outputs (output signal, display). Damping can be enabled as follows:• Via the DIP switch on the electronic insert• Factory setting: 1 s

Ex connection data

See the separate technical documentation (Safety Instructions (XA)) on
www.endress.com/download.

Linearization

The device's linearization function allows the user to convert the measured value to any
units of height or volume. User-defined linearization tables of up to 32 value pairs can beentered if necessary.

Endress+Hauser

43Technical data

Cerabar PMC51B Analog

13.2
Ambient temperature
range

Environment

The following values apply up to a process temperature of +85 °C (+185 °F). At higher
process temperatures, the permitted ambient temperature is reduced.
• Without segment display or graphic display:Standard: –40 to +85 °C (–40 to +185 °F)• With segment display or graphic display: –40 to +85 °C (–40 to +185 °F) with limitationsin optical properties such as display speed and contrast. Can be used without limitations
up to –20 to +60 °C (–4 to +140 °F)
Segment display: up to –50 to +85 °C (–58 to +185 °F) with restricted operating life andperformance• Separate housing: –20 to +60 °C (–4 to +140 °F)
Hazardous area
• For devices for use in hazardous areas, see the Safety Instructions, Installation Drawing
or Control Drawing• Devices that have the most common explosion protection certificates (e.g. ATEX/ IEC Ex,etc.) can be used in explosive atmospheres up to the ambient temperature.

Storage temperature• Without LCD display:Standard: –40 to +90 °C (–40 to +194 °F)• With LCD display: –40 to +85 °C (–40 to +185 °F)• Separate housing: –40 to +60 °C (–40 to +140 °F)
With M12 plug, elbowed: –25 to +85 °C (–13 to +185 °F)

Operating altitude

Up to 5 000 m (16 404 ft) above sea level.

Climate classClass 4K4H (air temperature: –20 to +55 °C (–4 to +131 °F), relative humidity: 4 to 100 %)satisfied as per DIN EN 60721-3-4.
Condensation is possible.

Degree of protection

Test as per IEC 60529 and NEMA 250-2014
Housing and process connection
IP66/68, TYPE 4X/6P(IP68: (1.83 mH2O for 24 h))
Cable entries• Gland M20, plastic, IP66/68 TYPE 4X/6P• Gland M20, brass nickel plated, IP66/68 TYPE 4X/6P• Gland M20, 316L, IP66/68 TYPE 4X/6P• Thread M20, IP66/68 TYPE 4X/6P• Thread G1/2, IP66/68 TYPE 4X/6P
If the G1/2 thread is selected, the device is delivered with an M20 thread as standard
and a G1/2 adapter is included with the delivery, along with the corresponding
documentation• Thread NPT1/2, IP66/68 TYPE 4X/6P

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Cerabar PMC51B Analog

Technical data

• Dummy plug transport protection: IP22, TYPE 2• Plug HAN7D, 90 deg. IP65 NEMA Type 4X• Plug M12
When housing is closed and connecting cable is plugged in: IP66/67 NEMA Type 4X
When housing is open or connecting cable is not plugged in: IP20, NEMA Type 1
NOTICE
Plug M12 and plug HAN7D: incorrect mounting can invalidate the IP protection class!
‣ The degree of protection only applies if the connecting cable used is plugged in andscrewed tight.
‣ The degree of protection only applies if the connecting cable used is specified according
to IP67 NEMA Type 4X.
‣ The IP protection classes are only maintained if the dummy cap is used or the cable isconnected.
Process connection and process adapter when using the separate housing
FEP cable• IP69 (on sensor side)• IP66 TYPE 4/6P
• IP68 (1.83 mH2O for 24 h) TYPE 4/6P
PE cable• IP69 (on sensor side)• IP66 TYPE 4/6P
• IP68 (1.83 mH2O for 24 h) TYPE 4/6P
Vibration resistanceSingle compartment housing
Mechanical construction

Sinusoidal oscillation IEC62828-1/IEC61298-3

Shock

Device10 Hz to 60 Hz: ±0.35 mm (0.0138 in)
60 Hz to 1000 Hz: 5 g

30 g

Device with Ex d and XP version 1)

10 Hz to 60 Hz: ±0.15 mm (0.0059 in)
60 Hz to 1000 Hz: 2 g

30 g

1)

Not for the high-temperature version with Ex d and XP.

Aluminum dual compartment housing
Mechanical construction

Sinusoidal oscillation IEC62828-1/IEC61298-3

Shock

Device10 Hz to 60 Hz: ±0.15 mm (0.0059 in)
60 Hz to 1000 Hz: 2 g

30 g

Device with Ex d version 1)

10 Hz to 60 Hz: ±0.15 mm (0.0059 in)
60 Hz to 1000 Hz: 2 g

30 g

1)

Electromagnetic
compatibility (EMC)

Not for the high-temperature version with Ex d and XP.

• Electromagnetic compatibility as per EN 61326 series and NAMUR recommendation
EMC (NE21)• With regard to the safety function (SIL), the requirements of EN 61326-3-x are satisfied• Maximum deviation with interference influence: < 0.5% of span with full measuring
range (TD 1:1)
For more details refer to the EU Declaration of Conformity.

Endress+Hauser

45

Technical data

Cerabar PMC51B Analog

13.3
Process temperature range

Process

NOTICEThe permitted process temperature depends on the process connection, process seal,
ambient temperature and the type of approval.
‣ All the temperature data in this document must be taken into consideration whenselecting the device.
–40 to +100 °C (–40 to +212 °F)°F Ta °C
212

100

176

80

140

60

104

40

68

20

32

0

-40

-20

0

20

40

70

80

100

-40

-4

32

68

104

158

176

212

°C
Tp
°F
A0043294

7
Tp
Ta

Values apply for vertical mounting without insulation.
Process temperature
Ambient temperature

The process temperature ranges indicated refer to the permanent operation of the device(maximum 5 °C (41 °F) deviation is permitted)
Seals
Pay attention to the process temperature range of the seal. The temperatures indicateddepend on the resistance of the seal to the medium.
Seal

Temperature

FKM–25 to +100 °C (–13 to +212 °F)

FKM
Cleaned for oxygen service–10 to +60 °C (+14 to +140 °F)

FFKM Perlast G75LT–20 to +100 °C (–4 to +212 °F)

FFKM Kalrez 6375

+5 to +100 °C (+41 to +212 °F)

FFKM Chemraz 505–10 to +100 °C (+14 to +212 °F)

EPDM–40 to +100 °C (–40 to +212 °F)

HNBR–25 to +100 °C (–13 to +212 °F)

Oxygen applications (gaseous)
Oxygen and other gases can react explosively to oils, grease and plastics. The following
precautions must be taken:• All components of the system, such as devices, must be cleaned in accordance withnational requirements.
• Depending on the materials used, a certain maximum temperature and a maximum
pressure must not be exceeded for oxygen applications.
The cleaning of the device (not accessories) is provided as an optional service.
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Cerabar PMC51B Analog

Technical data

Devices with measuring cells, nominal value < 10 bar (150 psi)
• pmax: Over pressure limit (OPL) of the measuring cell and depending on the processconnection used
• Devices with PVDF thread:• Only mount with the enclosed mounting bracket!
• pmax: 15 bar (225 psi)
• Tmax: 60 °C (140 °F)
Devices with measuring cells, nominal value ≥ 10 bar (150 psi)
• pmax: 40 bar (600 psi)
• Tmax: 60 °C (140 °F)
Thermal shock

Applications with jumps in temperature
Extreme jumps in temperature can result in temporary measuring errors. Temperaturecompensation takes place after a few minutes. Internal temperature compensation isfaster the smaller the jump in temperature and the longer the time interval involved.
For more information: contact the Endress+Hauser sales office.

Process pressure range

Pressure specifications

LWARNING
The maximum pressure for the device depends on the lowest-rated component withregard to pressure (components are: process connection, optional mounted parts oraccessories).
‣ Only operate the device within the specified limits for the components!
‣ MWP (maximum working pressure): The MWP is specified on the nameplate. Thisvalue refers to a reference temperature of +20 °C (+68 °F) and may be applied to thedevice for an unlimited time. Note temperature dependence of MWP. For flanges, referto the following standards for the permitted pressure values at higher temperatures:
EN 1092-1 (with regard to their stability/temperature property, the materials 1.4435
and 1.4404 are grouped together under EN 1092-1; the chemical composition of thetwo materials can be identical.), ASME B 16.5a, JIS B 2220 (the latest version of thestandard applies in each case). MWP data that deviate from this are provided in therelevant sections of the Technical Information.
The
overpressure limit is the maximum pressure a device may be subjected to during a‣test. It is greater than the maximum working pressure by a certain factor. This valuerefers to a reference temperature of +20 °C (+68 °F).
‣ The Pressure Equipment Directive (2014/68/EU) uses the abbreviation "PS". The
abbreviation "PS" corresponds to the MWP (maximum working pressure) of the device.
‣ In the case of measuring cell range and process connection combinations where theoverpressure limit (OPL) of the process connection is smaller than the nominal value ofthe measuring cell, the device is set at the factory, at the very maximum, to the OPL
value of the process connection. If the entire measuring cell range must be used, selecta process connection with a higher OPL value (1.5 x PN; MWP = PN).
Oxygenapplications: do not exceed values for Pmax and Tmax.
‣
Burst pressure
As of the specified burst pressure, the complete destruction of the pressure-bearing parts
and/or a device leak must be expected. It is therefore imperative to avoid such operating
conditions by carefully planning and sizing your facility.
Ultrapure gas applications

Endress+Hauser

Endress+Hauser also offers devices for special applications, such as for ultrapure gas, thatare cleaned of oil and grease. No special restrictions regarding the process conditions apply
to these devices.

47

Technical data

Steam applications andsaturated steam
applications

48

Cerabar PMC51B Analog

For steam and saturated steam applications: Use a device with a metallic membrane orprovide a water pocket pipe for temperature decoupling when installing.

Endress+Hauser

Cerabar PMC51B Analog

Index

Index
C

Submenu
Events list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

D

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Turning the display module . . . . . . . . . . . . . . . . . . . . 20

CE mark (Declaration of Conformity) . . . . . . . . . . . . . . 9
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . 9
Device documentation
Supplementary documentation . . . . . . . . . . . . . . . . 7
Device usage
see Intended use
Device Viewer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Diagnosis
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Diagnostic events . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Diagnostic list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Diagnostic message . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

T

U

Using the devices
Borderline cases . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Incorrect use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

W

Workplace safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

EEvent history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Events list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Exterior cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

F

Filtering the event logbook . . . . . . . . . . . . . . . . . . . . 35

I

Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

L

Local display
see Diagnostic message
see In alarm condition

M

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

N

Nameplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

O

Operational safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8P

Product safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

R

Repair concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Requirements concerning the staff . . . . . . . . . . . . . . . . 8

S

Safety Instructions
Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Nameplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Status signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Endress+Hauser49

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