Endress+Hauser Cerabar S User manual

cerabar S

Pressure Transmitter

Operating Instructions

4...20 mA

Test

123

4...20 mA

Test

123

BA 187P/00/en/04.99

Software version 5.0

017673-1000

Hauser+Endress

Nothing beats know-how

Short Operating Instructions

– –

Remote operation

over Commuwin II

Local operation

Cerabar S

without/with display

Local operation over push buttons

Section 3.1

set MR

= required MR? Pressure

yes no

Section 4

Calibration with

push buttons

Section 6.2

Calibration

with

reference

pressure

Linearisation?

Section 6.3

Dry

calibration

Section 4

Locking/Unlocking

with push buttons

Level

or pressure?

Level

yes

Table Automatic

Linearisation

Section 6.4

Section 6.5 - 6.6

Locking and

other settings

Matrix operation:

HART: Section 3.2

INTENSOR: Section 3.3

HART or INTENSOR via

Commuwin II:

Section 3.4

Section 5.1

Commisioning the

measuring point

Section 5.2 - 5.3

Locking and

other settings

Section 4

Damping

Damping?

no yes

Short Operating Instructions Cerabar S

2 Endress+Hauser

Table of Contents

1Introduction ............ 7

1.1 Measuring system . . . . . . . . 8

2Installation ............. 9

2.1 Mounting instructions without

diaphragm seal . . . . . . . . . 9

2.2 Mounting instructions with diaphragm

seal . . . . . . . . . . . . . . 11

2.3 Mounting accessories . . . . . . 12

2.4 Mounting position . . . . . . . . 13

2.5 Electrical connection . . . . . . . 14

3Operation ............. 16

3.1 Local operation . . . . . . . . . 16

3.2 Operating with the HART protocol via

the Universal HART

Communicator DXR 271 . . . . . . 17

3.3 Operating with the INTENSOR

protocol via Commulog VU 260 Z . . 17

3.4 Operating with the HART or

INTENSOR protocol via Commuwin II 18

4Local Operation ........... 19

4.1 Commissioning the measuring point . 19

4.2 Damping τ........... 21

4.3 Locking/unlocking operation . . . . 21

5Pressure Measurement ........ 22

5.1 Start-up with the Universal HART

Communicator DXR 271, Commulog

VU 260 Z or Commuwin II . . . . . 22

5.2 Locking/unlocking operation . . . . 25

5.3 Information on the measuring point . 26

6Level Measurement ......... 27

6.1 Start-up with the Universal HART

Communicator DXR 275,

Commulog VU 260 Z or Commuwin II 27

6.2 Calibration with reference pressure . 30

6.3 Dry calibration . . . . . . . . . 31

6.4 Linearisation . . . . . . . . . . 32

6.5 Locking/unlocking operation . . . . 35

6.6 Information on the measuring point . 36

7Diagnosis and Trouble-Shooting .... 37

7.1 Diagnosis of errors and warnings . . 37

7.2 Current simulation . . . . . . . . 38

7.3 Reset . . . . . . . . . . . . . 38

8Maintenance and Repair .......39

8.1 Repair . . . . . . . . . . . . . 39

8.2 Mounting the display . . . . . . . 40

8.3 Changing the sensor module and

electronics . . . . . . . . . . . 41

8.4 Changing the seal . . . . . . . . 42

8.5 Replacement parts . . . . . . . . 42

9Technical Data ...........44

10 Operating Matrix ..........52

10.1 Matrix INTENSOR . . . . . . . . 52

10.2 Matrix HART . . . . . . . . . . 53

10.3 Block diagram . . . . . . . . . . 53

Cerabar S Table of Contents

Endress+Hauser 3

Software History

HART protocol

(Operation via

Universal HART

Communicator

DXR 275)

INTENSOR protocol

(Operation via

Commulog VU 260 Z)

Commulog VU 260 Z

SW/

BA Instrument and

SW No. VU 260 Z Changes Remarks

2.2 /

08.95

5422 1.7 No effect to documentation.

4.0 /

08.95

6940 1.7 Operating mode linearisation curve

modified.

Extension of error and warning list.

5.0 /

12.98

6950 1.8

Universal HART Communicator DXR 275

SW/

BA Instrument

and SW No. Device

revision DD

revision Changes Remarks

1.2 /

09.94

6512 1 2 No effect to

documentation.

3.0 /

09.94

6530 2 1 Improved functions, e.g.

linearisation.

5.0 /

12.98

6550 3 1

Software History Cerabar S

4 Endress+Hauser

Notes on Safety

Approved usageThe Cerabar S is a pressure transmitter used for measuring gauge or absolute pressure

depending on the version. Level is measured using the Commuwin II display and

operating program or with the HART or INTENSOR handheld terminals.

Mounting,

commissioning,

operation

The Cerabar S has been designed to operate safely in accordance with current technical,

safety and EU standards. If installed incorrectly or used for applications for which it is

not intended, however, it is possible that application-related dangers may arise, e.g. B.

product overspill by incorrect installation or adjustment. For this reason, the instrument

must be installed, connected, operated and maintained by personnel that are authorised

by the user of the facility and who are suitably qualified. The manual must have been

read and understood, and the instructions followed. Modifications and repairs to the

device are permissible only when they are expressly approved in the manual.

Explosion hazardous

area

The measuring system used in the explosion hazardous area must comply with all existing

national standards. The instrument can be supplied with the following certificates as listed

in the table. The certificates are designated by the first letter of the order code on the

nameplate (see table below).

•Ensure that technical personnel are adequately trained.

•All measurement and safety regulations which apply to the measuring point are to

be observed.

Code Certificate Protection

R Standard None

G CENELEC EEx ia IIC T4/T6

G ATEX 100 ATEX II 1/2 G EEx ia IIC T4/T6

I CENELEC PMP: EEx d IIC T5/T6

PMC: EEx d [ia] IIC T6

I ATEX 100 PMP: ATEX II 2 G EEx d IIC T5/T6

PMC: ATEX II (1) 2 G EEx d [ia] IIC T6

D PTB, Zone 0 EEx ia IIC T4/T6

Q FM Explosion proof Class I, II, III Div. 1, Groups A…G

O FM IS Class I, II, III, Div. 1, Groups A…G

U CSA Explosion proof Class I, II, III, Div. 1, Groups B…G

S CSA IS Class I, II, III, Div. 1, Groups A…G

Certificates for applications in

explosion hazardous areas

ENDRESS+HAUSER

CERABAR S PMC/PMP

Order No. PMC xxx –

Order No. PMP xxx –

Cerabar S Notes on Safety

Endress+Hauser 5

Safety Conventions and Symbols

In order to highlight safety-relevant or alternative operating procedures in the manual,

the following conventions have been used, each indicated by a corresponding icon in

the margin.

Notes on safety

Ignition protection

Electrical symbols

Symbol Meaning

Note!

A note highlights actions or procedures which, if not performed correctly, may indirectly affect

operation or may lead to an instrument response which is not planned.

Caution!

Caution highlights actions or procedures which, if not performed correctly, may lead to

personal injury or incorrect functioning of the instrument.

Warning!

A warning highlights actions or procedures which, if not performed correctly, will lead to

personal injury, a safety hazard or destruction of the instrument.

Device certified for use in explosion hazardous area

If the device has this symbol embossed on its name plate it can be installed in an explosion

hazardous area.

Explosion hazardous area

Symbol used in drawings to indicate explosion hazardous areas.

– Devices located in and wiring entering areas with the designation “explosion hazardous

areas” must conform with the stated type of protection.

Safe area (non-explosion hazardous area)

Symbol used in drawings to indicate, if necessary, non-explosion hazardous areas.

– Devices located in safe areas still require a certificate if their outputs run into explosion

hazardous areas.

Direct voltage

A terminal to which or from which a direct current or voltage may be applied or supplied.

Alternating voltage

A terminal to which or from which an alternating (sine-wave) current or voltage may be

applied or supplied.

Grounded terminal

A grounded terminal, which as far as the operator is concerned, is already grounded by

means of an earth grounding system.

Protective grounding (earth) terminal

A terminal which must be connected to earth ground prior to making any other connection to

the equipment.

Equipotential connection (earth bonding)

A connection made to the plant grounding system which may be of type e.g. neutral star or

equipotential line according to national or company practice.

Note!

Caution!

Warning!

Note!

Safety Conventions and Symbols Cerabar S

6 Endress+Hauser

1 Introduction

ApplicationsThe Cerabar S pressure transmitter measures the pressure of gases, steam/vapour and

liquids and can be used in all areas of chemical and process engineering.

Operating principle

Ceramic sensor

The system pressure acts directly on the

rugged ceramic diaphragm of the pressure

sensor deflecting it by a maximum of 0.025

mm. A pressure-proportional change in the

capacitance is measured by the electrodes

on the ceramic substrate and diaphragm.

The measuring range is determined by the

thickness of the ceramic diaphragm.

Metal sensor

The process pressure deflects the

separating diaphragm with a filling liquid

transmitting the pressure to a resistance

bridge. The bridge output voltage, which is

proportional to pressure, is then measured

and processed.

Level measurement

The hydrostatic pressure of a column of

liquid enables its level to be measured

continuously by a pressure transmitter if the

density ρof the liquid is known.

h = phydr/ρ·g

0 - 10 bar

0 - 10 bar 0 - 10 bar

Version with

thread Version with

diaphragm seal

for flange mounting

Version with

diaphragm seal

for hygienic applications

BA187Y04

Figure 1.1

Examples of the Cerabar S

pressure transmitter S

BA187Y05

Ceramic

support

Electrode

Resistance

bridge

Filling fluid

Diaphragm

Ceramic measuring cell

Metallic measuring cell

Figure 1.2

Ceramic and metallic measuring cells

Cerabar S 1 Introduction

Endress+Hauser 7

1.1 Measuring system

The complete measuring system consists of

•Cerabar S pressure transmitter with 4…20 mA signal output

•optional four-character pressure display

•power supply 11.5…45 VDC, in Ex area 11.5…30 VDC

For electronic versions with HART or INTENSOR protocol, a digital communication signal

is superposed on the signal current and is used for remote calibration.

These instruments have additional functions to also measure level.

Operation can be carried out using:

•the Commuwin II operating program

•the universal HART Communicator DXR 275 (HART protocol)

•the Commulog VU 260 Z handheld terminal (INTENSOR protocol)

0 - 10 bar

Cerabar S

with display

Non-Ex

area:

11.5…45 VDC

Ex area:

11.5…30 VDC

4…20 mA

BA187Y06

e.g. RN 221 transmitter

power supply unit

Figure 1.3

Cerabar S measurement system

with display

1 Introduction Cerabar S

8 Endress+Hauser

2 Installation

This section describes:

•the mechanical installation of Cerabar S with and without diaphragm seals

•the electrical connection

2.1 Mounting instructions without diaphragm seal

Cerabar S

without diaphragm seal

– PMC 731

– PMP 731

The Cerabar S without diaphragm seal is mounted in the same way as a manometer. The

use of shut-off valves and pigtails is recommended. Its position depends upon the

application.

•Measurement in gases:

Mount the shut-off valve above the

tapping point so that condensate can

run back into the process.

•Measurement in steam:

Mount with a pigtail above the tapping

point.

The pigtail reduces the temperature in

front of the diaphragm to almost

ambient temperature. The pigtail must

be filled with water before start-up.

0 - 10 bar

BA187Y09

Figure 2.1

Mounted on a shut-off valve for

measuring gases

0 - 10 bar

BA187Y10

Figure 2.2

Mounted with U-shaped pigtail

for measuring steam/vapour

0 - 10 bar

BA187Y08

Figure 2.3

Mounted with circular pigtail for

measuring steam/vapour

Cerabar S 2 Installation

Endress+Hauser 9

•Measurement in liquids:

Mount on the shut-off valve below the

tapping point or at the same height

PVDF adapter For instruments with PVC adapter, a maximum torque of 7 Nm is permitted. The thread

connection may become loose at high temperatures and pressures. This means that the

integrity of the thread must be checked regularly and may need to be tightened using

the torque given above. Teflon tape is recommended for sealing with the ½ NPT thread.

Mounting the PMP 731 The PMP 731 with metallic sensor is available in the following versions:

•with flush-mounted diaphragm or

•with adapter and internal diaphragm.

The adapter can be screwed on or welded in.

A seal is enclosed appropriate to the material used and version.

0 - 10 bar

BA187Y07

Figure 2.4

Mounted on a shut-off valve for measuring liquids

Thread

adapter

DIN 3852-E-G ½

Material: 1.4571 or

Hastelloy

G ½ external

Viton

elastomer seal

supplied

Thread adapter

DIN 3852-A-G ½

with Hastelloy only

Threaded hole

DIN 3852-X-G ½

G ½

∅26

12 132

132

G ½

∅26

2.514

Figure 2.5

left:

An elastomer seal

to DIN 3852-E-G ½ is supplied

with the thread adapter

right:

With internal diaphragm and

welded or thread adapter

Process connection with

flush-mounted diaphragm

version 1F

With internal diaphragm and

thread adapter

Seal supplied

(with 1.4435 diaphragm only)

Welded

Welded adapter

– Material 1.4571

with 1.4435 diaphragm

– Material Hastelloy

with diaphragm in

Hastelloy

2 Installation Cerabar S

10 Endress+Hauser

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