Siemens SITRANS P DS III User manual

SITRANS P DS III with HART
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SITRANS
Pressure transmitter
SITRANS P DS III with HART
Operating Instructions
7MF4.33..
06/2013
A5E00047092
-09
Introduction
1
Safety instructions
2
Description
3
Installing/mounting
4
Connecting
5
Operation
6
Operating functions through
HART
7
Functional safety
8
Commissioning
9
Service and maintenance
10
Technical data
11
Dimension drawings
12
Spare parts/accessories
13
Appendix
A
List of abbreviations
B

Siemens AG
Industry Sector
Postfach 48 48
90026 NÜRNBERG
GERMANY
Order number: A5E00047092
Ⓟ
08/2013 Technical data subject to change
Copyright © Siemens AG 2013.
All rights reserved
Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to
property damage.
Qualified Personnel
The product/system described in this documentation may be operated only by
personnel qualified
for the specific
task in accordance with the relevant documentation, in particular its warning notices and safety instructions.
Qualified personnel are those who, based on their training and experience, are capable of identifying risks and
avoiding potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended
or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication
may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.

SITRANS P DS III with HART
Operating Instructions, 06/2013, A5E00047092-09 5
Table of contents
1 Introduction........................................................................................................................................... 11
1.1 Purpose of this documentation ....................................................................................................11
1.2 Product information......................................................................................................................11
1.3 History ..........................................................................................................................................12
1.4 Scope of the instructions..............................................................................................................12
1.5 Checking the consignment...........................................................................................................13
1.6 Transportation and storage..........................................................................................................13
1.7 Notes on warranty ........................................................................................................................14
2 Safety instructions................................................................................................................................. 15
2.1 Precondition for use .....................................................................................................................15
2.1.1 Laws and directives .....................................................................................................................15
2.1.2 Conformity with European directives ...........................................................................................16
2.2 Use in hazardous areas ...............................................................................................................17
3 Description............................................................................................................................................ 19
3.1 System configuration ...................................................................................................................19
3.2 Application range .........................................................................................................................20
3.3 Structure.......................................................................................................................................22
3.4 Nameplate layout .........................................................................................................................23
3.5 Measuring point label layout ........................................................................................................24
3.6 Functional principle ......................................................................................................................24
3.6.1 Overview of mode of operation ....................................................................................................24
3.6.2 Operation of the electronics .........................................................................................................25
3.6.3 Measuring cell operation..............................................................................................................26
3.6.3.1 Measuring cell for gauge pressure...............................................................................................27
3.6.3.2 Measuring cell for differential pressure and flow rate ..................................................................28
3.6.3.3 Measuring cell for level ................................................................................................................29
3.6.3.4 Measuring cell for absolute pressure from the differential pressure series .................................30
3.6.3.5 Measuring cell for absolute pressure from the gauge pressure series........................................31
3.6.3.6 Measuring cell for gauge pressure, front-flush membrane ..........................................................32
3.6.3.7 Measuring cell for absolute pressure, front-flush membrane ......................................................32
3.7 Remote seal.................................................................................................................................33
3.8 SIMATIC PDM..............................................................................................................................34
4 Installing/mounting ................................................................................................................................ 35
4.1 Basic safety instructions ..............................................................................................................35
4.1.1 Installation location requirements ................................................................................................39
4.1.2 Proper mounting...........................................................................................................................39

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6Operating Instructions, 06/2013, A5E00047092-09
4.2 Disassembly................................................................................................................................ 40
4.3 Installation (except level)............................................................................................................. 41
4.3.1 Instructions for installation (except level) .................................................................................... 41
4.3.2 Installation (except level)............................................................................................................. 42
4.3.3 Fastening..................................................................................................................................... 42
4.4 "Level" installation ....................................................................................................................... 44
4.4.1 Instructions for level installation .................................................................................................. 44
4.4.2 Installation for level ..................................................................................................................... 45
4.4.3 Connection of the negative pressure line.................................................................................... 46
4.5 "Remote seal" installation ........................................................................................................... 49
4.5.1 Remote seal installation .............................................................................................................. 49
4.5.2 Installation of the remote seal with the capillary line................................................................... 50
4.6 Turing the measuring cell against housing ................................................................................. 56
4.7 Rotating the display..................................................................................................................... 58
5 Connecting ........................................................................................................................................... 59
5.1 Basic safety instructions.............................................................................................................. 59
5.2 Connecting the device................................................................................................................. 62
5.3 Connecting the Han plug............................................................................................................. 64
5.4 Connecting the M12 connector ................................................................................................... 66
6 Operation.............................................................................................................................................. 69
6.1 Overview of operation ................................................................................................................. 69
6.2 Basic safety instructions.............................................................................................................. 70
6.3 Instructions for operation............................................................................................................. 70
6.4 Display......................................................................................................................................... 71
6.4.1 Display elements......................................................................................................................... 71
6.4.2 Units display................................................................................................................................ 72
6.4.3 Error display ................................................................................................................................ 73
6.4.4 Mode display ............................................................................................................................... 74
6.4.5 Status display.............................................................................................................................. 74
6.4.6 Overflow range............................................................................................................................ 75
6.5 Local operation............................................................................................................................ 76
6.5.1 Local control elements ................................................................................................................ 76
6.5.2 Operation using buttons .............................................................................................................. 79
6.5.3 Start of scale value/full scale value............................................................................................. 79
6.5.3.1 Difference between setting and adjusting ................................................................................... 79
6.5.3.2 Setting/adjusting the start of scale value .................................................................................... 83
6.5.3.3 Setting/adjusting the full scale value........................................................................................... 84
6.5.4 Setting/adjusting electrical damping ........................................................................................... 86
6.5.5 Blind start of scale value/full scale value .................................................................................... 87
6.5.5.1 Difference between setting/adjusting and blind setting/adjusting ............................................... 87
6.5.5.2 Blind setting of start of scale value ............................................................................................. 89
6.5.5.3 Blind setting of full scale value.................................................................................................... 90
6.5.5.4 Blind adjusting of the start of scale value.................................................................................... 90
6.5.5.5 Blind adjustment of the full scale value....................................................................................... 91

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Operating Instructions, 06/2013, A5E00047092-09 7
6.5.6 Trimming the zero point ...............................................................................................................91
6.5.7 Current transmitter .......................................................................................................................92
6.5.8 Output current in case of fault......................................................................................................93
6.5.9 Locking buttons and functions .....................................................................................................94
6.5.10 Releasing key lock or function lock..............................................................................................96
6.5.11 Flow rate measurement (only differential pressure) ....................................................................96
6.5.12 Measured value display ...............................................................................................................99
6.5.13 Unit.............................................................................................................................................100
7 Operating functions through HART...................................................................................................... 105
7.1 Operating functions through HART communication ..................................................................105
7.2 Process tag data ........................................................................................................................106
7.3 Selecting the measuring modes.................................................................................................106
7.3.1 Overview of measuring modes ..................................................................................................106
7.3.2 Measuring mode selector...........................................................................................................107
7.3.3 Variable mapper.........................................................................................................................107
7.3.4 Measuring mode "Pressure" ......................................................................................................108
7.3.5 Customized characteristic curve ................................................................................................109
7.3.6 Measuring mode "Level" ............................................................................................................110
7.3.7 Measuring mode "Flow rate"......................................................................................................112
7.3.8 Measuring mode "User" .............................................................................................................114
7.3.9 Measured value status...............................................................................................................116
7.3.10 Analog output .............................................................................................................................120
7.3.11 Scaling the display value ...........................................................................................................121
7.4 Setting zero point and limit point................................................................................................122
7.5 Blind setting of zero point and limit point ...................................................................................123
7.6 Zero point calibration (position correction).................................................................................123
7.7 Electrical damping......................................................................................................................124
7.8 Fast response mode ..................................................................................................................124
7.9 Current sensor ...........................................................................................................................124
7.10 Fault current ...............................................................................................................................124
7.11 Setting the current limits ............................................................................................................125
7.12 Key lock and write protection.....................................................................................................126
7.13 Measured value display .............................................................................................................127
7.14 Selection of the physical unit .....................................................................................................128
7.15 Bar graph ...................................................................................................................................129
7.16 Sensor calibration ......................................................................................................................129
7.16.1 Sensor trim.................................................................................................................................129
7.16.2 Trimming the sensor ..................................................................................................................130
7.17 Current sensor trim ....................................................................................................................130
7.18 Factory calibration......................................................................................................................132
7.19 Static configuration data ............................................................................................................132
7.20 Flow rate measurement (only differential pressure) ..................................................................134

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SITRANS P DS III with HART
8Operating Instructions, 06/2013, A5E00047092-09
7.21 Diagnostic functions .................................................................................................................. 134
7.21.1 Overview ................................................................................................................................... 134
7.21.2 Operating hours counter ........................................................................................................... 135
7.21.3 Calibration timer and service timer ........................................................................................... 135
7.21.4 Min/max indicator ...................................................................................................................... 137
7.21.5 Limit modules ............................................................................................................................ 138
7.22 Simulation.................................................................................................................................. 140
7.22.1 Overview of simulation .............................................................................................................. 140
7.22.2 Simulation as fixed value .......................................................................................................... 141
7.22.3 Simulation with a ramp function ................................................................................................ 141
7.23 Limit monitor.............................................................................................................................. 141
8 Functional safety..................................................................................................................................145
8.1 Safety function .......................................................................................................................... 145
8.2 Safety Integrity Level (SIL)........................................................................................................ 147
8.3 Settings ..................................................................................................................................... 149
8.4 Safety characteristics ................................................................................................................ 150
8.5 Maintenance/Checking.............................................................................................................. 151
8.6 Add-on parts.............................................................................................................................. 152
8.6.1 Checking a device with add-on pneumatic block ...................................................................... 152
8.6.2 Checking a device with add-on remote seal ............................................................................. 152
9 Commissioning ....................................................................................................................................153
9.1 Basic safety instructions............................................................................................................ 153
9.2 Introduction to commissioning .................................................................................................. 154
9.3 gauge pressure, absolute pressure from the differential pressure series and absolute
pressure from the gauge pressure series ................................................................................. 155
9.3.1 Commissioning for gases.......................................................................................................... 155
9.3.2 Commissioning with steam or liquid.......................................................................................... 157
9.4 Differential pressure and flow rate ............................................................................................ 158
9.4.1 Safety notes for commissioning with differential pressure and flow rate .................................. 158
9.4.2 Commissioning in gaseous environments ................................................................................ 159
9.4.3 Commissioning for liquids ......................................................................................................... 160
9.4.4 Commissioning with vapor ........................................................................................................ 162
10 Service and maintenance.....................................................................................................................165
10.1 Basic safety instructions............................................................................................................ 165
10.2 Maintenance and repair work.................................................................................................... 168
10.2.1 Defining the maintenance interval............................................................................................. 168
10.2.2 Checking the gaskets................................................................................................................ 169
10.2.3 Display in case of a fault ........................................................................................................... 170
10.2.4 Changing the measuring cell and application electronics......................................................... 170
10.3 Cleaning .................................................................................................................................... 171
10.3.1 Servicing the remote seal measuring system ........................................................................... 172
10.4 Return procedure ...................................................................................................................... 173

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Operating Instructions, 06/2013, A5E00047092-09 9
10.5 Disposal .....................................................................................................................................174
11 Technical data .................................................................................................................................... 175
11.1 Overview of technical data.........................................................................................................175
11.2 Input point ..................................................................................................................................176
11.3 Output ........................................................................................................................................183
11.4 Measuring accuracy...................................................................................................................184
11.5 Operating conditions ..................................................................................................................191
11.6 Construction ...............................................................................................................................194
11.7 Display, keyboard and auxiliary power ......................................................................................199
11.8 Certificates and approvals .........................................................................................................200
11.9 HART communication ................................................................................................................202
12 Dimension drawings............................................................................................................................ 203
12.1 SITRANS P, DS III for gauge pressure and absolute pressure from the gauge pressure
series..........................................................................................................................................203
12.2 SITRANS P DS III for differential pressure, flow rate and absolute pressure from the
differential pressure series.........................................................................................................205
12.3 SITRANS P DS III for level ........................................................................................................208
12.4 SITRANS P DS III (flush-mounted)............................................................................................209
12.4.1 Note 3A and EHDG....................................................................................................................210
12.4.2 Connections as per EN and ASME............................................................................................210
12.4.3 F&B and pharma flange .............................................................................................................211
12.4.4 PMC Style ..................................................................................................................................215
12.4.5 Special connections ...................................................................................................................216
13 Spare parts/accessories...................................................................................................................... 219
13.1 Order data ..................................................................................................................................219
13.2 Order data for SIMATIC PDM ....................................................................................................221
A Appendix............................................................................................................................................. 223
A.1 Certificate ...................................................................................................................................223
A.2 Literature and standards ............................................................................................................223
A.3 Literature and catalogs ..............................................................................................................224
A.4 Overview of HART operating structure ......................................................................................225
A.5 Technical support.......................................................................................................................228
B List of abbreviations ............................................................................................................................ 229
Glossary ............................................................................................................................................. 231
Index................................................................................................................................................... 235

Table of contents
SITRANS P DS III with HART
10 Operating Instructions, 06/2013, A5E00047092-09

SITRANS P DS III with HART
Operating Instructions, 06/2013, A5E00047092-09 11
Introduction
1
1.1
Purpose of this documentation
These instructions contain all information required to commission and use the device. It is
your responsibility to read the instructions carefully prior to installation and commissioning. In
order to use the device correctly, first review its principle of operation.
The instructions are aimed at persons mechanically installing the device, connecting it
electronically, configuring the parameters and commissioning it, as well as service and
maintenance engineers.
1.2
Product information
The programming manual is an integral part of the CD, which is either supplied or can be
ordered. The programming manual is also available on the Siemens homepage.
On the CD, you will also find the catalog extract with the ordering data, the Software Device
Install for SIMATIC PDM for additional installation, and the required software.
See also
Product information on SITRANS P in the Internet (http://www.siemens.com/sitransp)
Process instrumentation catalog (http://www.siemens.com/processinstrumentation/catalogs)

Introduction
1.3 History
SITRANS P DS III with HART
12 Operating Instructions, 06/2013, A5E00047092-09
1.3
History
This history establishes the correlation between the current documentation and the valid
firmware of the device.
The documentation of this edition applies to the following firmware:
Edition
Firmware identifier nameplate
System integration
Installation path for PDM
06/2013 FW: 11.03.03, FW: 11.03.04,
FW: 11.03.05, FW: 11.03.06
SIMATIC PDM 8.x SITRANS P DSIII.2
The most important changes in the documentation when compared with the respective
previous edition are given in the following table.
Edition
Remark
06/2013 The following chapters have been changed:
•"Functional safety" chapter
•"Technical data" chapter
1.4
Scope of the instructions
Table 1- 1 "7MF4.33" stands for:
Order number
SITRANS P, DS III series for
7MF4033
Gauge pressure
7MF4133
Gauge pressure, flush mounted diaphragm
7MF4233
Absolute pressure from the gauge pressure series
7MF4333
Absolute pressure from the differential pressure series
7MF4433 Differential pressure and flow rate, PN 32/160 (MAWP
464/2320 psi)
7MF4533
Differential pressure and flow rate, PN 420 (MAWP 6092 psi)
7MF4633
Level

Introduction
1.5 Checking the consignment
SITRANS P DS III with HART
Operating Instructions, 06/2013, A5E00047092-09 13
1.5
Checking the consignment
1. Check the packaging and the device for visible damage caused by inappropriate handling
during shipping.
2. Report any claims for damages immediately to the shipping company.
3. Retain damaged parts for clarification.
4. Check the scope of delivery by comparing your order to the shipping documents for
correctness and completeness.
WARNING
Using a damaged or incomplete device
Danger of explosion in hazardous areas.
•Do not use damaged or incomplete devices.
See also
Return procedure (Page 173)
1.6
Transportation and storage
To guarantee sufficient protection during transport and storage, observe the following:
●Keep the original packaging for subsequent transportation.
●Devices/replacement parts should be returned in their original packaging.
●If the original packaging is no longer available, ensure that all shipments are properly
packaged to provide sufficient protection during transport. Siemens cannot assume
liability for any costs associated with transportation damages.
CAUTION
Insufficient protection during storage
The packaging only provides limited protection against moisture and infiltration.
•Provide additional packaging as necessary.
Special conditions for storage and transportation of the device are listed in "Technical data"
(Page 175).

Introduction
1.7 Notes on warranty
SITRANS P DS III with HART
14 Operating Instructions, 06/2013, A5E00047092-09
1.7
Notes on warranty
The contents of this manual shall not become part of or modify any prior or existing
agreement, commitment or legal relationship. The sales contract contains all obligations on
the part of Siemens as well as the complete and solely applicable warranty conditions. Any
statements regarding device versions described in the manual do not create new warranties
or modify the existing warranty.
The content reflects the technical status at the time of publishing. Siemens reserves the right
to make technical changes in the course of further development.

SITRANS P DS III with HART
Operating Instructions, 06/2013, A5E00047092-09 15
Safety instructions
2
2.1
Precondition for use
This device left the factory in good working condition. In order to maintain this status and to
ensure safe operation of the device, observe these instructions and all the specifications
relevant to safety.
Observe the information and symbols on the device. Do not remove any information or
symbols from the device. Always keep the information and symbols in a completely legible
state.
Symbol
Explanation
Consult operating instructions
2.1.1
Laws and directives
Observe the test certification, provisions and laws applicable in your country during
connection, assembly and operation. These include, for example:
●National Electrical Code (NEC - NFPA 70) (USA)
●Canadian Electrical Code (CEC) (Canada)
Further provisions for hazardous area applications are for example:
●IEC 60079-14 (international)
●EN 60079-14 (EC)

Safety instructions
2.1 Precondition for use
SITRANS P DS III with HART
16 Operating Instructions, 06/2013, A5E00047092-09
2.1.2
Conformity with European directives
The CE mark on the device is a sign of conformity with the following European directives:
Electromagnetic
Compatibility EMC
2004/108/EC
Directive of the European Parliament and of the Council on the
approximation of the laws of the Member States relating to
electromagnetic compatibility and repealing Directive
89/336/EEC.
Atmosphère explosible
ATEX
94/9/EC
Directive of the European Parliament and the Council on the
approximation of the laws of the Member States concerning
equipment and protective systems intended for use in
potentially explosive atmospheres.
Pressure Equipment
Directive PED
97/23/EC
Directive of the European Parliament and of the Council on the
approximation of the laws of the Member States concerning
pressure equipment.
The standards applied can be found in the EC declaration of conformity for the device.
WARNING
Improper device modifications
Danger to personnel, system and environment can result from modifications to the device,
particularly in hazardous areas.
•Only carry out modifications that are described in the instructions for the device. Failure
to observe this requirement cancels the manufacturer's warranty and the product
approvals.
Due to the large number of possible applications, each detail of the described device
versions for each possible scenario during commissioning, operation, maintenance or
operation in systems cannot be considered in the instructions. If you need additional
information not covered by these instructions, contact your local Siemens office or company
representative.
Note
Operation under special ambient conditions
We highly recommend that you contact your Siemens representative or our application
department
before you operate the device under special ambient conditions as can be
encountered in nuclear power plants or when the device is used for research and
development purposes.

Safety instructions
2.2 Use in hazardous areas
SITRANS P DS III with HART
Operating Instructions, 06/2013, A5E00047092-09 17
2.2
Use in hazardous areas
Qualified personnel for hazardous area applications
Persons who install, assemble, commission, operate and service the device in a hazardous
area must have the following specific qualifications:
●They are authorized, trained or instructed in operating and maintaining devices and
systems according to the safety regulations for electrical circuits, high pressures,
aggressive and hazardous media.
●They are authorized, trained, or instructed in carrying out work on electrical circuits for
hazardous systems.
●They are trained or instructed in maintenance and use of appropriate safety equipment
according to the pertinent safety regulations.
WARNING
Unsuitable device for the hazardous area
Danger of explosion.
•Only use equipment that is approved for use in the intended hazardous area and
labelled accordingly.
See also
Technical data (Page 175)
WARNING
Loss of safety of device with type of protection "Intrinsic safety Ex i"
If the device has already been operated in non-intrinsically safe circuits or the electrical
specifications have not been observed, the safety of the device is no longer ensured for use
in hazardous areas. There is a danger of explosion.
•Connect the device with type of protection "Intrinsic safety" solely to an intrinsically safe
circuit.
•Observe the specifications for the electrical data on the certificate and in Chapter
"Technical data (Page 175)".

Safety instructions
2.2 Use in hazardous areas
SITRANS P DS III with HART
18 Operating Instructions, 06/2013, A5E00047092-09
WARNING
Use of incorrect device parts in potentially explosive environments
Devices and their associated device parts are either approved for different types of
protection or they do not have explosion protection. There is a danger of explosion if device
parts (such as covers) are used for devices with explosion protection that are not expressly
suited for this type of protection. If you do not adhere to these guidelines, the test
certificates and the manufacturer warranty will become null and void.
•Use only device parts that have been approved for the respective type of protection in
the potentially explosive environment. Covers that are not suited for the "explosion-
proof" type of protection are identified as such by a notice label attached to the inside of
the cover with "Not Ex d Not SIL".
•Do not swap device parts unless the manufacturer specifically ensures compatibility of
these parts.
WARNING
Risk of explosion due to electrostatic charge
To prevent the build-up of an electrostatic charge in a hazardous area, the key cover must
be closed during operation and the screws tightened.
The key cover may be opened temporarily at any time for the purposes of operating the
transmitter, even during plant operation; the screws should then be tightened again.
NOTICE
Electrostatic-sensitive devices
The device contains electrostatic-sensitive devices (ESD). ESD can be destroyed by
voltages far too low to be detected by humans. These voltages can occur if you simply
touch a component part or the electrical connections of a module without being
electrostatically discharged. The damage to a module caused by overvoltage cannot
normally be detected immediately; it only becomes apparent after a longer period of
operating time has elapsed.
Protective measures against the discharge of static electricity:
•Make sure that no power is applied.
•Before working with modules, make sure that you discharge static from your body, for
example by touching a grounded object.
•Devices and tools used must be free of static charge.
•Hold modules only by their edges.
•Do not touch connector pins or conductor tracks on a module with the ESD notice.

SITRANS P DS III with HART
Operating Instructions, 06/2013, A5E00047092-09 19
Description
3
3.1
System configuration
Overview
The pressure transmitter can be used in a number of system configurations:
●as a stand-alone version, supplied with the necessary auxiliary power
●as part of a complex system environment, e.g. SIMATIC S7
System communication
Communication is via the HART protocol, using:
●HART Communicator (load 230 ... 1100 Ω)
●PC with HART modem, on which appropriate software is installed, e.g. SIMATIC PDM
(load 230 ... 500 Ω)
●Control system which can communicate via the HART protocol, e.g. SIMATIC PCS7
Figure 3-1 Possible system configurations

Description
3.2 Application range
SITRANS P DS III with HART
20 Operating Instructions, 06/2013, A5E00047092-09
3.2
Application range
Overview
Depending on the version, a transmitter measures corrosive, non-corrosive and hazardous
gases, vapors and liquids.
You can use the transmitter for the following types of measurement:
●Gauge pressure
●Absolute pressure
●Differential pressure
With appropriate parameter settings and the necessary add-on parts (e.g. flow orifices and
remote seals), the pressure transmitter can also be used for the following measurements:
●Level
●Volume
●Mass
●Volumetric flow
●Mass flow rate
The output signal is always a load-independent direct current between 4 and 20 mA.
You can install the "intrinsically-safe" or "explosion-proof" version of the transmitter in
hazardous areas. The devices have an EC type examination certificate and comply with the
appropriate harmonized European CENELEC directives.
Transmitters with remote seals of different shapes can be delivered for special applications.
For example, measuring high-viscosity substances is a special application.
Gauge pressure
This version measures aggressive, non-aggressive and hazardous gases, vapors and
liquids.
The smallest span is 0.01 bar g (0.145 psi g), and the largest 700 bar g (10153 psi g).
Differential pressure and flow rate
This version measures corrosive, non-corrosive and hazardous gases, vapors and liquids.
You can use this version for the following measurement types:
●differential pressure, e.g. effective differential pressure
●Gauge pressure, suitable for small positive or negative pressure value
●in combination with a restrictor device: flow rate q ~
The smallest measuring span is 1 mbar (0.0145 psi), the largest 30 bar (435 psi).