Endress+Hauser cerabar S User manual

cerabar S
Pressure Transmitter
Operating Instructions
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BA 187P/00/en/04.99
Software version 5.0
017673-1000
Hauser+Endress
Nothing beats know-how

Short Operating Instructions
– –
++
ZS
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
no
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
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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
Diaphragm
Ceramic measuring cell
Metallic measuring cell
Figure 1.2
Ceramic and metallic measuring cells
Cerabar S 1 Introduction
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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
or
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
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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
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•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
3
12 132
3
12
132
G ½
∅26
27
21
2.514
22
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
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