BA00385P/00/EN/20.16
71316876

Products

Solutions

Valid from software version:
01.00.zz

Operating Instructions
Cerabar M
PMC51, PMP51, PMP55
Process pressure measurement

ServicesCerabar M 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.
To avoid danger to individuals or the facility, read the "Basic safety instructions" section
carefully, as well as all other safety instructions in the document that are specific to working
procedures.
The manufacturer reserves the right to modify technical data without prior notice. Your
Endress+Hauser distributor will supply you with current information and updates to these
Operating Instructions.

2

Endress+Hauser

Cerabar M Analog

Table of contents
1

Document information . . . . . . . . . . . . . . 4

1.1
1.2

Document function . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Symbols used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2

Basic safety instructions . . . . . . . . . . . . . 6

2.1
2.2
2.3
2.4
2.5
2.6

Requirements for personnel . . . . . . . . . . . . . . . . . . 6
Designated use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Occupational safety . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Operational safety . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Hazardous area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Product safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3

Identification . . . . . . . . . . . . . . . . . . . . . . 8

3.1
3.2
3.3
3.4

Product identification . . . . . . . . . . . . . . . . . . . . . . . . 8
Device designation . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . 11
CE mark, Declaration of Conformity . . . . . . . . . . 11

4

Installation . . . . . . . . . . . . . . . . . . . . . . . 12

4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8

Incoming acceptance . . . . . . . . . . . . . . . . . . . . . . 12
Storage and transport . . . . . . . . . . . . . . . . . . . . . . 12
Installation conditions . . . . . . . . . . . . . . . . . . . . . 12
General installation instructions . . . . . . . . . . . . . 13
Installation instructions . . . . . . . . . . . . . . . . . . . . 14
Closing the housing covers . . . . . . . . . . . . . . . . . 24
Mounting the profiled seal for the universal
process adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Post-installation check . . . . . . . . . . . . . . . . . . . . . 24

5

Electrical connection . . . . . . . . . . . . . . . 25

5.1
5.2
5.3
5.4
5.5

Connecting the device . . . . . . . . . . . . . . . . . . . . . 25
Connecting the measuring unit . . . . . . . . . . . . . . 26
Potential equalization . . . . . . . . . . . . . . . . . . . . . . 27
Overvoltage protection (optional) . . . . . . . . . . . . 28
Post-connection check . . . . . . . . . . . . . . . . . . . . . 30

6Operation. . . . . . . . . . . . . . . . . . . . . . . . . 31

6.1
6.2

Position of operating elements . . . . . . . . . . . . . . 31
Using the device display (optional) . . . . . . . . . . . 32

7

Commissioning . . . . . . . . . . . . . . . . . . . . 34

7.1
7.2

Function check . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

8Maintenance . . . . . . . . . . . . . . . . . . . . . . 36

8.1
8.2

Cleaning instructions . . . . . . . . . . . . . . . . . . . . . . 36
Exterior cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . 36

9Troubleshooting . . . . . . . . . . . . . . . . . . . 37

9.1

Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Endress+Hauser

9.2
9.3
9.4
9.5
9.6
9.7
9.8

Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Response of output to errors . . . . . . . . . . . . . . . . . 37
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Software history . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

10Technical data . . . . . . . . . . . . . . . . . . . . 38
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

3

Document information

Cerabar M Analog

1

Document information

1.1

Document function

These Operating Instructions contain all the information that is required in the various
phases of the life cycle of the device: from product identification, incoming acceptance andstorage, to mounting, connection, operation and commissioning through to troubleshooting,
maintenance and disposal.

1.2

Symbols used

1.2.1

Safety symbols

SymbolMeaning

GEFAHR
A0011189-EN

WARNUNG
A0011190-EN

VORSICHT
A0011191-EN

HINWEIS
A0011192-EN

1.2.2

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

Electrical symbols

SymbolMeaning

Meaning

Direct current

Alternating current

Direct current and alternating current

Ground connection
A grounded terminal which, as far as
the operator is concerned, is grounded
via a grounding system.

Protective ground connection
A terminal which must be connected
to ground prior to establishing anyother connections.

1.2.3

Symbol)Equipotential connection
A connection that has to be connectedto the plant grounding system: Thismay be a potential equalization line ora star grounding system depending on
national or company codes of practice.

Tool symbols

SymbolMeaning
Allen screw
A0011221

Open-ended wrench
A0011222

4

Endress+Hauser

Cerabar M Analog

Document information

1.2.4

Symbols for certain types of information

SymbolMeaning
Permitted
Indicates procedures, processes or actions that are permitted.
A0011182

Forbidden
Indicates procedures, processes or actions that are forbidden.
A0011184

Tip
Indicates additional information.
A0011193

Reference to documentation
A0015482

Reference to page.
A0015484

Reference to graphic
A0015487

1. , 2. , ...

Series of steps
Result of a sequence of actions

A0018343

Visual inspection
A0015502

1.2.5

Symbols in graphics

SymbolMeaning

1, 2, 3, 4 etc.

Numbering for main items

1. , 2. , ...

Series of steps

A, B, C, D etc.

Views

1.2.6

Symbols on the device

SymbolMeaning
Safety instructions
Observe the safety instructions in the associated Operating Instructions.
A0019159

t>85°C

1.2.7

Connecting cable immunity to temperature change
Indicates that the connecting cables have to withstand a temperature of 85°C at least.

Registered trademarks

KALREZ®, VITON®, TEFLON®
Trademark of E.I. Du Pont de Nemours & Co., Wilmington, USA
TRI-CLAMP®
Trademark of Ladish & Co., Inc., Kenosha, USA
GORE-TEX®
Trademark of W.L. Gore & Associates, Inc., USA

Endress+Hauser

5Basic safety instructions

Cerabar M Analog

2

Basic safety instructions

2.1

Requirements for personnel

Personnel involved in installation, commissioning, diagnostics and maintenance must meetthe 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 national regulations• Before commencing work, the specialist staff must have read and understood the
instructions in the manuals and supplementary documentation as well as in thecertificates (depending on the application)• Follow instructions and comply with basic conditions
Operating personnel must meet the following requirements:• Are instructed and authorized according to the requirements of the task by the facility'sowner-operator• Follow the instructions in these Operating Instructions

2.2

Designated use

The Cerabar M is a pressure transmitter for measuring pressure and level.

2.2.1

Incorrect use

The manufacturer is not liable for damage caused by improper or non-designated use.
Clarification of borderline cases:
In the case of special fluids and fluids used for cleaning, Endress+Hauser is glad to provide
assistance in clarifying the corrosion resistance of wetted materials, but does not accept any
warranty or liability.

2.3

Occupational safety

When working on and with the device:• Wear the required personal protective equipment according to national regulations.
• Switch off the supply voltage before connecting the device.

2.4

Operational safety

Risk of injury!
‣ Operate the device in a proper technical condition and fail-safe condition only.
‣ The operator is responsible for the trouble-free operation of the device.
Modifications to the device
Unauthorized modifications to the device are not permitted and can lead to unforeseeable
dangers:‣ If modifications are nevertheless required, consult with Endress+Hauser.
RepairTo ensure continued operational safety:‣ Carry out repairs on the device only if they are expressly permitted.
‣ Observe national regulations pertaining to the repair of an electrical device.
‣ Only use genuine spare parts and accessories from Endress+Hauser.

6

Endress+Hauser

Cerabar M Analog

Basic safety instructions

2.5

Hazardous area

To eliminate the risk of danger to persons or the facility when the device is used in thehazardous area (e.g. explosion protection, pressure equipment safety):• Check the nameplate to determine whether the ordered device can be used for theintendedapplication in the hazardous area.
• Observe the specifications in the separate supplementary documentation that is an
integral part of these Operating Instructions.

2.6

Product safety

This measuring device is designed in accordance with good engineering practice to meetstate-of-the-art safety requirements, has been tested, and left the factory in a condition inwhich it is safe to operate. It meets general safety standards and legal requirements. It also
complies with the EC directives listed in the device-specific EC Declaration of Conformity.
Endress+Hauser confirms this by affixing the CE mark to the device.

Endress+Hauser

7

Identification

Cerabar M Analog

3

Identification

3.1

Product identification

The following options are available to identify the measuring device:• Nameplate specifications• Order code with a breakdown of the device features on the delivery note
• Enter serial number from nameplates in the W@M Device Viewer(www.endress.com/deviceviewer): All information about the measuring device isdisplayed.
For an overview of the technical documentation provided, enter the serial number from thenameplates in the W@M Device Viewer (www.endress.com/deviceviewer).

3.2

Device designation

3.2.1

Nameplates• The MWP (maximum working pressure) is specified on the nameplate. This value refers
to a reference temperature of 20°C (68°F) or 100°F (38 °C) for ANSI flanges.
• The pressure values permitted at higher temperatures can be found in the following
standards:– EN 1092-1: 2001 Tab. 18 1)– ASME B 16.5a – 1998 Tab. 2-2.2 F316
– ASME B 16.5a – 1998 Tab. 2.3.8 N10276– JIS B 2220
• The test pressure corresponds to the over pressure limit (OPL) of the device = MWP x 1.5
2).
• The Pressure Equipment Directive (EC Directive 97/23/EC) uses the abbreviation "PS". The
abbreviation "PS" corresponds to the MWP (maximum working pressure) of the measuring
device.
1)2)8With regard to their stability-temperature property, the materials 1.4435 and 1.4404 are grouped together
under 13EO in EN 1092-1 Tab. 18. The chemical composition of the two materials can be identical.
The equation does not apply for PMP51 and PMP55 with a 40 bar (600 psi) or a 100 bar (1500 psi) measuring
cell.

Endress+Hauser

Cerabar M Analog

Identification

Aluminum housing

Order code:
Ext. order code:
250002755-C

MWP
P

5

11
12

1

2
8
13

17

Mat.:

6

4

Ser. no.:

9

Span
L=

U=
ex works FW:
Dev.Rev.:

3
7

14
15

18

10
16

18

250002756-E

Made in Germany, D-79689 Maulburg

A0028467

Fig. 1:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18

Nameplate

Device name
Order number (shortened for re-ordering)
Serial number (for identification)
Extended order number (full)
MWP (maximum working pressure)Electronic version (output signal)
Min./max. span
Nominal measuring range
Supply voltage
Unit of length
No entry
ID number of notified body with regard to Pressure Equipment Directive (optional)
Approvals
Software version
Device version
Degree of protection
Wetted materials
Approval-specific information

Devices suitable for oxygen applications are fitted with an additional nameplate.

Bei Sauerstoffeinsatz/
for oxygen service
Pmax
Tmax

1

2

3

A0028468

Fig. 2:
1
2
3

Endress+Hauser

Additional nameplate for devices suitable for oxygen applications
Maximum pressure for oxygen applications
Maximum temperature for oxygen applications
Layout identification of the nameplate9

Identification

Cerabar M Analog

Stainless steel housing, hygienic

1

p

MWP

3
4
5

4
6

2

4
002757-A

Order code:
Ser. no.:Ext. order code:

U=
Span
Mat.:

14

ex works FW

8

9

10
11
13 12
15

16

Dev.Rev.:

17

12
18

002758-C

7

L=
Made in Germany,
D-79689 Maulburg

A0028469

Fig. 3:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18

Nameplate

Device name
Order number (shortened for re-ordering)
Serial number (for identification)
Extended order number (full)
Nominal measuring range
MWP (maximum working pressure)
Length data
Electronic version (output signal)
Supply voltage
Min./max. span
Wetted materials
Approval-specific information
No entry
ID number of notified body with regard to Pressure Equipment Directive (optional)
No entry
Software version
Device version
Degree of protection

Devices with certificates are fitted with an additional nameplate.

1002759-B

1

A0028470

Abb. 4:1

10Additional nameplate for devices with certificates

Approval-specific information

Endress+Hauser

Cerabar M Analog

Identification

3.3

Scope of delivery

The scope of delivery comprises:• Device• Optional accessories
Documentation supplied:• Operating Instructions BA00385P are available on the Internet.
See: www.de.endress.com Download• Brief Operating Instructions: KA01036P• Final inspection report• Optional: factory calibration form, test certificates

3.4

CE mark, Declaration of Conformity

The devices are designed to meet state-of-the-art safety requirements, have been tested andleft the factory in a condition in which they are safe to operate. The devices comply with theapplicable standards and regulations as listed in the EC Declaration of Conformity and thus
comply with the statutory requirements of the EC Directives.
Endress+Hauser confirms the conformity of the device by affixing to it the CE mark.

Endress+Hauser

11

Installation

Cerabar M Analog

4

Installation

4.1

Incoming acceptance• Check the packaging and the contents for damage.
• Check the shipment, make sure nothing is missing and that the scope of supply matches
your order.

4.2

Storage and transport

4.2.1

Storage

The device must be stored in a dry, clean area and protected against damage from impact(EN 837-2).
Storage temperature range:
See Technical Information for Cerabar M TI00436P.

4.2.2
!

Transport

WARNING

Incorrect transportation
Housing, diaphragm and capillaries may become damaged, and there is a risk of injury!
‣ Transport the measuring device to the measuring point in its original packaging or by theprocess connection.
‣ Follow the safety instructions and transport conditions for devices weighing more than
18 kg (39.6 lbs).
‣ Do not use capillaries as a carrying aid for the diaphragm seals.

4.3

Installation conditions

4.3.1

Dimensions

For dimensions, please refer to the Technical Information for Cerabar M TI00436P,"Mechanical construction" section.

12

Endress+Hauser

Cerabar M Analog

Installation

4.4

General installation instructions• Devices with a G 1 1/2 thread:
When screwing the device into the tank, the flat seal has to be positioned on the sealing
surfaceof the process connection. To avoid additional strain on the process isolating diaphragm,
the thread should never be sealed with hemp or similar materials.
• Devices with NPT threads:– Wrap Teflon tape around the thread to seal it.
– Tighten the device at the hexagonal bolt only. Do not turn at the housing.
– Do not overtighten the thread when screwing. Max. torque: 20 to 30 Nm (14.75 to
22.13 lbf ft)

4.4.1
!

Mounting sensor modules with PVDF thread

WARNING

Risk of damage to process connection!
Risk of injury!
‣ Sensor modules with PVDF process connections with threaded connection must be
installed with the mounting bracket provided!
!

WARNING

Material fatigue from pressure and temperature!
Risk of injury if parts burst! The thread can become loose if exposed to high pressure andtemperatures.
‣ The integrity of the thread must be checked regularly and the thread may need to be retightened with the maximum tightening torque of 7 Nm (5.16 lbf ft). Teflon tape isrecommended for sealing the ½" NPT thread.

Endress+Hauser

13Installation

Cerabar M Analog

4.5

Installation instructions• Due to the orientation of the Cerabar M, there may be a shift in the zero point, i.e. when
the container is empty or partially full, the measured value does not display zero. You cancorrect this zero point shift  ä 32,  Chap. 6.1.2 "Function of the operating elements".
• For PMP55, please refer to  Chap. 4.5.2 "Installation instructions for devices withdiaphragm seals – PMP55",  ä 17.
• Endress+Hauser offers a mounting bracket for installing on pipes or walls.
 ä 21,  Chap. 4.5.5 "Wall and pipe mounting (optional)".

4.5.1

Installation instructions for devices without diaphragm seals –PMP51, PMC51

NOTICE

Damage to the device!
If a heated Cerabar M is cooled during the cleaning process (e.g. by cold water), a vacuum
develops for a short time, whereby moisture can penetrate the sensor through the pressurecompensation (1).
‣ If this is the case, mount the Cerabar M with the pressure compensation (1) pointing
downwards.
1

11• Keep the pressure compensation and GORE-TEX® filter (1) free from contamination.
• Cerabar M transmitters without diaphragm seals are mounted as per the norms for amanometer (DIN EN 837-2). We recommend the use of shutoff devices and siphons. The
orientation depends on the measuring application.
• Do not clean or touch process isolating diaphragms with hard or pointed objects.
• The device must be installed as follows in order to comply with the cleanability
requirements of the ASME-BPE (Part SD Cleanability):

14

Endress+Hauser

Cerabar M Analog

Installation

Pressure measurement in gases

1
2

A0028473

Fig. 5:
1
2

Measuring arrangement for pressure measurement in gases
Cerabar M
Shutoff device

Mount the Cerabar M with the shutoff device above the tapping point so that any condensate
can flow into the process.
Pressure measurement in steams

1
2
1
2
4

3

A0028474

Fig. 6:1
2
3
4

Measuring arrangement for pressure measurement in steams
Cerabar M
Shutoff device
U-shaped siphon
Circular siphon• Mount Cerabar M with siphon above the tapping point.
• Fill the siphon with liquid before commissioning.
The siphon reduces the temperature to almost the ambient temperature.

Endress+Hauser

15

Installation

Cerabar M Analog

Pressure measurement in liquids

1
2

3
A0028491

Fig. 7:
1
2

Measuring arrangement for pressure measurement in liquids
Cerabar M
Shutoff device• Mount Cerabar M with shutoff device below or at the same level as the tapping point.
Level measurement

A0028492

Fig. 8:

Measuring arrangement for level• Always install the Cerabar M below the lowest measuring point.
• Do not mount the device in the filling curtain or at a point in the tank which could be
affected by pressure pulses from an agitator.
• Do not mount the device in the suction area of a pump.
• The calibration and functional test can be carried out more easily if you mount the device
downstream of a shutoff device.

16

Endress+Hauser

Cerabar M Analog

Installation

4.5.2

Installation instructions for devices with diaphragm seals –PMP55• Cerabar M devices with diaphragm seals are screwed in, flanged or clamped, depending on
the type of diaphragm seal.
• Please note that the hydrostatic pressure of the liquid columns in the capillaries can cause
zero point shift. The zero point shift can be corrected.
• Do not clean or touch the process isolating diaphragm of the diaphragm seal with hard or
pointed objects.
• Do not remove process isolating diaphragm protection until shortly before installation.
NOTICE

Improper handling!
Damage to the device!
‣ A diaphragm seal and the pressure transmitter together form a closed, oil-filledcalibrated system. The fill fluid hole is sealed and may not be opened.
‣ When using a mounting bracket, sufficient strain relief must be ensured for thecapillaries in order to prevent the capillary bending down (bending radius 100(3.94 in)).
‣ Please observe the application limits of the diaphragm seal filling oil as detailed in theTechnical Information for Cerabar M TI00436P, "Planning instructions for diaphragm
seal systems" section.
NOTICE

In order to obtain more precise measurement results and to avoid a defect in the device,
mount the capillaries as follows:‣ Vibration-free (in order to avoid additional pressure fluctuations)‣ Not in the vicinity of heating or cooling lines‣ Insulate if the ambient temperature is below or above the reference temperature‣ With a bending radius of  100 mm (3.94 in).
‣ Do not use the capillaries as a carrying aid for the diaphragm seals!

Endress+Hauser

17Installation

Cerabar M Analog

Vacuum application
For applications under vacuum, Endress+Hauser recommends mounting the pressuretransmitter below the diaphragm seal. This prevents vacuum loading of the diaphragm sealcaused by the presence of fill fluid in the capillary.
When the pressure transmitter is mounted above the diaphragm seal, the maximum height
difference H1 in accordance with the illustrations below must not be exceeded.

H1

A0023994

Fig. 9:Installation above the lower diaphragm seal

The maximum height difference depends on the density of the filling oil and the smallest
ever pressure that is permitted to occur at the diaphragm seal (empty vessel), see illustration
below:
[m]
12.0
1
10.0

2

8.0

3

A 6.0

4

4.0
5

2.0
0.0
50 100 200

300

400

500

600

700

800

900 1000[mbarabs]

B
A0023986-en

Fig. 10:
A
B
1
2
3
4
5

18

Diagram of maximum installation height above the lower diaphragm seal for vacuum applications depending on thepressure at the diaphragm seal on the positive side
Height difference H1
Pressure at diaphragm seal
Low temperature oil
Vegetable oil
Silicone oil
High-temperature oil
Inert oilEndress+Hauser

Cerabar M Analog

Installation

Mounting with temperature isolator
Endress+Hauser recommends the use of temperature isolators in the event of constantextreme medium temperatures which lead to the maximum permissible electronics
temperature of +85 °C (+185°F) being exceeded.
Depending on the filling oil used, diaphragm seal systems with temperature isolators can beused for maximum temperatures of up to 400 °C (+752 °F). For the temperatureapplication limits, see technical Information, "Diaphragm seal filling oils" section.
To minimize the influence of rising heat, Endress+Hauser recommends the device bemounted horizontally or with the housing pointing downwards. The additional installation
height also brings about a maximum zero point shift of 21 mbar (0.315 psi) due to thehydrostatic column in the temperature isolator. You can correct this zero point shift at thedevice.
The temperature restrictions are lowest with an insulation height of 30 mm (1.18 inch).
Full insulation exhibits virtually the same behavior as no insulation!
The temperature limits with an insulation height of 30 mm (1.18 inch) are illustrated in thefollowing graphic.

A

B

C
1
2

Tp [°C]B [°F]

G

D

E

F

+752

+400

+662

+350

+572

+300

+482

+250

+392

+200

+302

+150

+212

+100

+122

+50

+32

0

-58

-50

-148

-100
-60

-40

-20

0

+20

+40

+60

+80

+100

-76

-40

-4

+32

+68

+104

+140

+176

+212

[°C]
Ta
[°F]

A
A0031354

Fig. 11:
A
B
C
D
E
F
G
1
2

Endress+Hauser

Ambient temperature: 85 °C (185 °F)
Process temperature: max. 400 °C (752 °F), depending on the filling oil used
Device with temperature isolator, material 316L (1.4404)
Without isolation
Maximum isolation
30 mm (1.18. inch) isolation
Without isolation, maximum isolation, 30 mm (1.18. inch) isolation
Isolation heigth 30 mm (1.18. inch)
Isolation material

19Installation

Cerabar M Analog

4.5.3

Seal for flange mounting

NOTICE

Corrupted measurement results.
The seal is not allowed to press against the process isolating diaphragm as this could affectthe measurement result.
‣ Ensure that the seal is not touching the process isolating diaphragm.

1

2

A0017743

Fig. 12:1
Process isolating diaphragm
2
Seal

4.5.4

Thermal insulation – PMP55

The PMP55 may only be insulated up to a certain height. The maximum permitted
insulation height is indicated on the devices and applies to an insulation material with a heat
conductivity  0.04 W/(m x K) and to the maximum permitted ambient and processtemperature. The data were determined under the most critical application "quiescent air".

A
1

2

B
A0020474

Fig. 13:
A
B
1
2

20

Maximum permitted insulation height, here indicated on a PMP55 with a flange
Ambient temperature: 70 °C (158°F)
Process temperature: max. 400 °C (752°F), depending on the diaphragm seal filling oil used
Maximum permitted insulation height
Insulation material

Endress+Hauser

Cerabar M Analog

Installation

4.5.5

Wall and pipe mounting (optional)

Endress+Hauser offers a mounting bracket for installation on pipes or walls (for pipe
diameters from 1 ¼" to 2").

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

Engineering unit mm (in)Please note the following when mounting:• Devices with capillary tubes: mount capillaries with a bending radius 100 mm (3.94 in).
• When mounting on a pipe, tighten the nuts on the bracket uniformly with a torque of atleast 5 Nm (3.69 lbs ft).

Endress+Hauser

21

Installation

Cerabar M Analog

4.5.6

Assembling and mounting the "separate housing" version

7
6
5
4
3
2

1
r ³ 120 (4.72)

7

A0028494

Fig. 14:
1
2
3
4
5
6
7

"Separate housing" version
In the case of the "separate housing" version, the sensor is delivered with the process connection and cable ready mounted.
Cable with connection jackPressure compensation
Connector
Locking screw
Housing mounted with housing adapter, included
Mounting bracket provided, suitable for pipe and wall mounting (for pipe diameters from 1 ¼" up to 2")

Engineering unit mm (in)Assembly and mounting
1.

Insert the connector (item 4) into the corresponding connection jack of the cable(item 2).

2.

Plug the cable into the housing adapter (item 6).

3.

Tighten the locking screw (item 5).

4.

Mount the housing on a wall or pipe using the mounting bracket (item 7).
When mounting on a pipe, tighten the nuts on the bracket uniformly with a torque ofat least 5 Nm (3.69 lbs ft).
Mount the cable with a bending radius (r) 120 mm (4.72 in).

Routing the cable (e.g. through a pipe)
You require the cable shortening kit.
Order number: 71093286
For details on mounting, see SD00553P/00/A6.

22

Endress+Hauser

Cerabar M Analog

Installation

4.5.7

PMP51, version prepared for diaphragm seal mount –welding recommendation

1

2

3

ø2.5 (0.1)ø7.95 (0.31)

5 (0.2)

A1

A0028495

Fig. 15:
1
2
3
A1

Version XSJ: prepared for diaphragm seal mountHole for fill fluid
Bearing
Setscrew
See the "Welding recommendation" table below

Engineering unit mm (in)Endress+Hauser recommends welding on the diaphragm seal as follows for the "XSJ prepared for diaphragm seal mount" version in feature 110 "Process connection" in the ordercode up to, and including, 40 bar (600 psi) sensors: the total welding depth of the fillet weld
is 1 mm (0.04 in) with an outer diameter of 16 mm (0.63 in). Welding is performed
according to the WIG method.
Consecutive seamno.
A1
for sensors
 40 bar (600 psi)

Sketch/welding groove shape,
dimension as per DIN 8551

s1 a0.8

Base material matching

Welding method
DIN EN ISO 24063

Welding
position

Inert gas,
additives

Adapter made of AISI 316L
(1.4435) to be welded todiaphragm seal made of
AISI 316L (1.4435 or 1.4404)

141

PB

Inert gas
Ar/H 95/5
Additive:
ER 316L Si(1.4430)

A0024811

Information on filling
The diaphragm seal must be filled as soon as it has been welded on.
• After welded into the process connection, the sensor assembly must be properly filled witha filling oil and sealed gas-tight with a sealing ball and lock screw.
Once the diaphragm seal has been filled, at the zero point the device display should notexceed 10% of the full scale value of the cell measuring range. The internal pressure of thediaphragm seal must be corrected accordingly.
• Adjustment / calibration:– The device is operational once it has been fully assembled.
– Perform a reset. The device must then be calibrated to the process measuring range as
described in the Operating Instructions.

Endress+Hauser

23

Installation

Cerabar M Analog

4.6

Closing the housing covers

NOTICE

Devices with EPDM cover seal - transmitter leakiness!
Mineral-based, animal-based or vegetable-based lubricants cause the EPDM cover seal toswell and the transmitter to become leaky.
‣ The thread is coated at the factory and therefore does not require any lubrication.
NOTICEThe housing cover can no longer be closed.
Damaged thread!
‣ When closing the housing covers make sure that the threads on the covers and the
housing are free from dirt, such as sand. If you encounter resistance when closing thecovers, then check the threads again for dirt.

4.6.1

Closing the cover on the stainless steel housing

A0028497

Abb. 16:

Closing the cover

The cover for the electronics compartment is tightened by hand at the housing until the stop.
The screw serves as DustEx protection (only on devices with DustEx approval).

4.7

Mounting the profiled seal for the universal
process adapter

For details on mounting, see KA00096F/00/A3.

4.8

Post-installation checkO

Is the device undamaged (visual inspection)?

O

Does the device comply with the measuring point specifications?
For example:• Process temperature• Process pressure• Ambient temperature range• Measuring range

24

O

Are the measuring point identification and labeling correct (visual inspection)?

O

Is the device adequately protected against precipitation and direct sunlight?

O

Are the securing screw and securing clamp tightened securely?

Endress+Hauser

Cerabar M Analog

Electrical connection

5

Electrical connection

5.1

Connecting the device!

WARNING

Supply voltage might be connected!
Risk of electric shock and/or explosion!
‣ Ensure that no uncontrolles processes are activated in the system.
‣ Switch off the supply voltage before connecting the device.
‣ When using the measuring device in hazardous areas, installation must comply with thecorresponding national standards and regulations and the Safety Instructions or
Installation or Control Drawings.
‣ A suitable circuit breaker must be provided for the device in accordance with
IEC/EN61010.
‣ Devices with integrated overvoltage protection must be grounded.
‣ Protective circuits against reverse polarity, HF influences and overvoltage peaks areintegrated.
Connect the device in the following order:
1. Check that the supply voltage corresponds to the supply voltage indicated on the
nameplate.
2. Switch off the supply voltage before connecting the device.
3. Remove housing cover.
4. Guide the cable through the gland. Preferably use a twisted, shielded two-wire cable.
5. Connect the device in accordance with the following diagram.
6. Screw down the housing cover.
7. Switch on the supply voltage.

1

6

1

5

- +
2

4
3
A0028498

Electrical connection 4 to 20 mA
1
2
3
4
5
6

Endress+Hauser

External grounding terminalInternal grounding terminal
Supply voltage: 11.5 to 45 VDC (versions with plug-in connectors 35 V DC)
4 to 20 mA
Terminals for supply and signal
Test terminals

25

Electrical connection

Cerabar M Analog

5.1.1

Devices with M12 connector

PIN assignment for M12 connector

4

3

1

2

PIN

Meaning

1

Signal +2

Not assigned

3Signal –

4

Earth

PIN

Meaning

1

Signal –2

Signal +3

Not assigned

4

ShieldA0011175

5.1.2

Devices with 7/8" plug

PIN assignment for 7/8" connector

1

3

2

4
A0011176

5.1.3

Connecting the cable version
+
–

+

–
PE
1

2

3

4
A0019991

Fig. 17:1234

rd = redbk = black
gnye = green
4 to 20 mA

5.2

Connecting the measuring unit

5.2.1

Supply voltage

Electronic version
4 to 20 mA

11.5 to 45 V DC
(Versions with plug-in connectors: 35 V DC)

Taking 4 to 20 mA test signal
A 4 to 20 mA test signal may be measured via the test terminals without interrupting themeasurement. To keep the corresponding measured error below 0.1 %, the current
measuring device should exhibit an internal resistance of < 0.7 .

26

Endress+Hauser

Cerabar M Analog

Electrical connection

5.2.2

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)

5.2.3

Cable specification• Endress+Hauser recommends using twisted, shielded two-wire cables.
• Cable outer diameter: 5 to 9 mm (0.2 to 0.35 in) depending on the cable gland used(see Technical Information)

5.2.4

Load

R Lmax
[W]
1456
1239
804
369
11.5

20

30
1

2

40 45 U[V]

R Lmax £ U – 11.5 V
23 mA
A0029282

Abb. 18:

Load diagram

1

Power supply 11.5 to 45 V DC (versions with plug-in connector 35 V DC) for other types of protection and for uncertified device
versions
2RLmax Maximum load resistanceU
Supply voltage

5.2.5

Shielding/potential equalization

You achieve optimum shielding against disturbances if the shielding is connected on bothsides (in the cabinet and on the device). If potential equalization currents are expected in theplant, only ground shielding on one side, preferably at the transmitter.

5.3

Potential equalization

Observe the applicable regulations.

Endress+Hauser

27

Electrical connection

Cerabar M Analog

5.4

Overvoltage protection (optional)

Devices showing version "NA" in feature 610 "Mounted accessories" in the order code are
equipped with a surge arrester (see Technical Information "Ordering information" section).
The surge arrester is mounted at the factory on the housing thread for the cable gland andis approx. 70 mm (2.76 in) in length (take additional length into account when installing).
The device is connected as specified in the following graphic. For details refer to
TI001013KEN, XA01003KA3 and BA00304KA2.

5.4.1

Wiring
+
A

3

1
+
B

-

2

rt
sw

4

+
-

A0023111

Fig. 19:
A
B
1
2
3
4

28

Without direct shield grounding
With direct shield grounding
Incoming connection cable
HAW569-DA2B
Unit to be protected
Connection cableEndress+Hauser

Cerabar M Analog

Electrical connection

5.4.2

Installation
0.4 Nm (0.30 lbf ft)
1max. 1.5 mm² (16 AWG)
max. 2.5 mm² (14 AWG)

max. 3.75 Nm (2.77 lbf ft)

min. 1.5 mm² (16 AWG)
10 (0.4)A
5 (0.2)15 (0.6)+

2
3

10 (0.4)B
5 (0.2)7 (0.28)2+

3

A0028499

Fig. 20:A
B
1
2
3

Without shield grounding
With shield grounding
See NOTICE below
Red
Black

Engineering unit mm (in)NOTICE

Screw connection glued at factory!
Damage to the device and/or surge arrester!
‣ When releasing/tightening the union nut use a wrench to hold the screw steady so it
does not turn.

Endress+Hauser

29

Electrical connection

Cerabar M Analog

5.5

Post-connection check

Perform the following checks after completing electrical installation of the device:• Does the supply voltage match the specifications on the nameplate?
• Is the device properly connected?
• Are all screws firmly tightened?
• Is the housing cover screwed down tight?
As soon as voltage is applied to the device, the green LED on the electronic insert lights up
for a few seconds or the connected local display lights up.

30

Endress+Hauser

Cerabar M Analog

Operation

6

Operation

6.1

Position of operating elements

The operating keys and the DIP switch are located on the electronic insert in the device.

2

Zero

1

Span

Display3
ondamping

off

on
off

damping

1

4
A0023992

Fig. 21:
1
2
3
4

6.1.1

Electronic insert
Operating keys for lower range value (zero) and upper range value (span)
Green LED to indicate successful operation
Slot for optional local display
DIP switch for switching damping on/off

Function of the DIP switch
Switch position"off"

Damping is switched off.
The output signal follows measured value changes
without any delay.

Endress+Hauser"on"Damping is switched on.
The output signal follows measured value changes withthe delay time t Factory setting: t = 2 s or as per orderspecifications).

31

Operation

Cerabar M Analog

6.1.2

Function of the operating elements

Operating key(s)Meaning"Zero"
pressed briefly

Display lower range value"Zero"
pressed for at least 3 seconds

Get lower range value
The pressure present is accepted as the lower range value (LRV).

"Span"
pressed briefly

Display upper range value"Span"
pressed for at least 3 seconds

Get upper range value
The pressure present is accepted as the upper range value (LRV).

"Zero" and "Span" pressed together
briefly

Display position adjustment"Zero" and "Span" pressed
simultaneously for at least 3 seconds

Position adjustment
The sensor characteristic curve is shifted parallel to itself, so that thepressure present becomes the zero value.

"Zero" and "Span" pressed
simultaneously for at least 12 seconds

Reset
All parameters are reset to the order configuration.

6.2

Using the device display (optional)

A 4-line liquid crystal display (LCD) is used. The local display shows measured values, fault
messages and notice messages.
The display can be removed for easy operation (see diagram, steps 1 - 3). It is connected tothe device via a 90 mm (3.54 in) long cable.
The device display can be rotated in 90 ° stages (see diagram, steps 4 - 6).
Depending on the orientation of the device, this makes it easy to read the measured values.

1.

2.

3.

4.

5.

6.

A002850032

Endress+Hauser

Cerabar M Analog

Operation

Functions:• 8-digit measured value display including sign and decimal point, bar graph for 4 to 20 mA
as current display.
• Diagnostic functions (fault and warning message etc.)

2

F

F

1

3
4

6
5

A0028501

Fig. 22:
1
2
3
4
5
6

Display
Main line
Value
SymbolUnit
Bar graph
Information line

The following table illustrates the symbols that can appear on the local display. Four symbols
can occur at one time.
SymbolMeaning
Error message "Out of specification"
The device is being operated outside its technical specifications (e.g. during warmup
or cleaning processes).
Error message "Service mode"
The device is in the service mode (during a simulation, for example).
Error message "Maintenance required"
Maintenance is required. The measured value remains valid.
Error message "Failure detected"
An operating error has occurred. The measured value is no longer valid.

Endress+Hauser

33

Commissioning

Cerabar M Analog

7

Commissioning

The device is factory-configured for the pressure measuring mode. The measuring range andthe unit in which the measured value is transmitted correspond to the specifications on the
nameplate.
!

WARNING

Permitted process pressure exceeded!
Risk of injury if parts burst! Warnings are displayed if the pressure is too high.
‣ If a pressure that is greater than the maximum permitted pressure is present at thedevice, the message "S" and "Warning" are output alternately. Only operate the device
within the sensor range limits!
NOTICE

Permitted process pressure undershot!
Messages are displayed if the pressure is too low.
‣ If a pressure that is lower than the minimum permitted pressure is present at the device,
the message "S" and "Warning" are output alternately. Only operate the device within thesensor range limits!

7.1

Function check

Carry out a post-installation and a post-connection check as per the checklist before
commissioning the device.
• "Post-installation check"  ä 24 checklist• "Post-connection check"  ä 30 checklist

7.2

Commissioning

The following functions are possible via the keys on the electronic insert:• Position adjustment (zero point correction). A pressure shift resulting from theorientation of the measuring device can be corrected by performing the position
adjustment.
• Setting lower range value and upper range value• Device reset• The pressure applied must be within the nominal pressure limits of the sensor. See
information on the nameplate.
1.) Perform position adjustment
Pressure is present at device.
Press the "Zero" and "Span" keys simultaneously for at least 3 s.
Does the LED on the electronic insert light up briefly?
Yes

No





Applied pressure for position adjustment has been
accepted.

34

Applied pressure for position adjustment has not been
accepted. Observe the input limits.

Endress+Hauser

Cerabar M Analog

Commissioning

2.) Set lower range value
Desired pressure for lower range value is present at device.
Press the "Zero" key for at least 3 s.
Does the LED on the electronic insert light up briefly?
Yes

No





Applied pressure for lower range value has been
accepted.

Applied pressure for lower range value has not been
accepted. Observe the input limits.

3.) Set upper range value
Desired pressure for upper range value is present at device.
Press the "Span" key for at least 3 s.
Does the LED on the electronic insert light up briefly?
Yes

No





Applied pressure for upper range value has been
accepted.

Applied pressure for upper range value has not been
accepted. Observe the input limits.

4.) Check settings
Press "Zero" key briefly to display the lower range value.
Press "Span" key briefly to display the upper range value.
Press "Zero" and "Span" keys together briefly to display the calibration offset.

Endress+Hauser

35

Maintenance

Cerabar M Analog

8

Maintenance

Keep the pressure compensation and GORE-TEX® filter (1) free from contamination.

1

A0028502

8.1

Cleaning instructions

Endress+Hauser offer flushing rings as accessories to clean process isolating diaphragms
without taking the transmitters out of the process.
For further information please contact your local Endress+Hauser Sales Center.

8.1.1

Cerabar M PMP55

We recommend you perform CIP (cleaning in place (hot water)) before SIP (sterilization inplace (steam)) for pipe diaphragm seals. A frequent use of sterilization in place (SIP) will
increase the stress on the process isolating diaphragm. Under unfavorable circumstances in
the long term view we cannot exclude that a frequent temperature change could lead to amaterial fatigue of the process isolating diaphragm and possibly to a leakage.

8.2

Exterior cleaning

Please note the following points when cleaning the device:• The cleaning agents used should not corrode the surface and the seals.
• Mechanical damage to the diaphragm, e.g. due to sharp objects, must be avoided.
• Observe the degree of protection of the device. See the nameplate if necessary ( ä 8 ff).

36

Endress+Hauser

Cerabar M Analog

Troubleshooting

9

Troubleshooting

9.1

Messages

The following is a list of the messages that can occur. The device has four different status
information codes in accordance with NE107:• F = failure• M (warning) = maintenance required• C (warning) = function check• S (warning) = out of specification (deviations from the permitted ambient or process
conditions determined by the device with the self-monitoring function, or errors in thedevice itself indicate that the measuring uncertainty is greater than what would be
expected under normal operating conditions).

9.2

Measures

When a message is a displayed, the following steps can be taken:• Check cable/pressure value• Restart device• Perform a reset
If these steps do not correct the error, please contact yourEndress+Hauser subsidiary.

9.3

Response of output to errors

In the event of an error, the current output adopts a value of 3.6 mA.

9.4

Repair

The Endress+Hauser repair concept provides for measuring devices to have a modular design
and that the customer can also carry out repairs ( ä 37 "Spare parts").
• For certified devices, please consult the "Repair of Ex-certified devices" section.
• For more information on service and spare parts, contact Endress+Hauser Service.
 See www.endress.com/worldwide.

9.5

Spare parts• Some replaceable measuring 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
W@M Device Viewer (www.endress.com/deviceviewer) and can be ordered here. If
available, users can also download the associated Installation Instructions.
Measuring device serial number:• Located on the device nameplate and spare part nameplate.
• Can be read out via the "SERIAL NO. TRANSM." parameter in the "TRANSMITTER DATA"
submenu.

Endress+Hauser

37

Technical data

Cerabar M Analog

9.6

ReturnThe measuring device must be returned if it is in need of repair or a factory calibration, or if
the wrong measuring device has been delivered or ordered. Legal specifications require
Endress+Hauser, as an ISO-certified company, to follow certain procedures when handling
any returned products that have been in contact with medium.
To ensure the safe, professional and swift return of your device, please refer to the procedureand conditions for returning equipment on theEndress+Hauser website at www.services.endress.com/return-material.

9.7

Disposal

When disposing, separate and recycle the device components based on the materials.

9.8
Date

Software history
Software version

Software modifications

Documentation
Operating Instructions

10.200901.00.zz

Original software.

BA385P/00/EN/10.09 71102503
BA00385P/00/EN/13.10 71125888
BA00385P/00/EN/15.11 71134887
BA00385P/00/EN/16.12 71157152
BA00385P/00/EN/17.12 71191314
BA00385P/00/EN/18.14 71241498
BA00385P/00/EN/20.16 71316876

10Technical data

See Technical Information TI00436P

38

Endress+Hauser

Cerabar M Analog

Index
Numerics

Cable specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Shielding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Software history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Supply voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

DT

4 to 20 mA test signal. . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

C

Diaphragm seals, installation instructions . . . . . . . . . . . 17
Diaphragm seals, vacuum application. . . . . . . . . . . . . . . 18
Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

E

Temperature isolator, installation instructions. . . . . . . . 19

W

Wall mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Welding recommendation . . . . . . . . . . . . . . . . . . . . . . . . . 23

Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

H

Hazardous area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

I

Installation instructions for devices with diaphragm seals
17
Installation instructions for devices without diaphragmseals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

K

Keys, local, function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

L

Level measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Load. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Local display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

M

Measuring arrangement for pressure measurement . 15–
16

N

Nameplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

O

Occupational safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Operating elements, function . . . . . . . . . . . . . . . . . . . . . 32
Operating elements, position . . . . . . . . . . . . . . . . . . . . . . 31
Operating keys, position . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Operational safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Overvoltage protection . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

P

Pipe mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Potential equalization . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Product safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

R

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Returning devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

S

Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Separate housing, assembly and mounting . . . . . . . . . . 22
Endress+Hauser

39

71316876

www.addresses.endress.com