Siemens SIPROCESS GA700 User manual

Continuous gas analysis
SIPROCESS GA700
Rack-mounted device
Operating Instructions
7MB3000-.....-....
7MB3010-.....-....
7MB3017-.....-....
7MB3020-.....-....
7MB3040-.....-....
A5E31874006-12
Introduction 1
Safety instructions 2
General information 3
Description 4
Combined operation 5
Installing 6
Installing/removing and
connecting analyzer and
option modules 7
Connecting 8
Commissioning 9
Operation 10
Maintenance and service 11
Decommissioning,
dismantling and disposal 12
Technical speci󹪝cations 13
Dimension drawings 14
Appendix A

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.
Quali󹪝ed Personnel
The product/system described in this documentation may be operated only by personnel quali󹪝ed for the speci󹪝c
task in accordance with the relevant documentation, in particular its warning notices and safety instructions.
Quali󹪝ed 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 identi󹪝ed 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.
Siemens AG
Digital Industries
Postfach 48 48
90026 NÜRNBERG
GERMANY
Document order number: A5E31874006
Ⓟ 02/2022 Subject to change
Copyright © Siemens AG .
All rights reserved

Table of contents
1 Introduction ........................................................................................................................................... 7
1.1 Purpose of this document .................................................................................................... 7
1.2 History................................................................................................................................. 7
1.3 Purpose ............................................................................................................................... 8
1.4 Field of application .............................................................................................................. 8
1.5 Proper use ........................................................................................................................... 9
1.6 Quali󹪝ed personnel.............................................................................................................. 9
1.7 Checking delivery ................................................................................................................ 9
1.8 Transportation and storage ................................................................................................ 10
1.9 Warranty conditions........................................................................................................... 11
2 Safety instructions............................................................................................................................... 13
2.1 Requirements for safe use.................................................................................................. 13
2.1.1 Laws and directives............................................................................................................ 13
2.1.2 Conformity with European directives.................................................................................. 14
2.2 Basic safety instructions ..................................................................................................... 14
3 General information ............................................................................................................................ 17
3.1 KC Safety note - Information for Korea only......................................................................... 17
3.2 Requirements for special applications................................................................................. 17
3.3 Automatic reset ................................................................................................................. 17
3.4 Measuring high oxygen concentrations .............................................................................. 18
4 Description........................................................................................................................................... 19
4.1 Overview........................................................................................................................... 19
4.2 Design of rack-mounted housing........................................................................................ 20
4.3 Device/module identi󹪝cation .............................................................................................. 21
4.3.1 Nameplate layout............................................................................................................... 21
4.3.2 Design of module nameplate ............................................................................................. 21
4.3.3 Date of manufacture.......................................................................................................... 22
4.4 OXYMAT 7 ......................................................................................................................... 23
4.4.1 Principle of operation of OXYMAT 7.................................................................................... 24
4.4.2 Reference gas monitoring .................................................................................................. 26
4.5 ULTRAMAT 7 ...................................................................................................................... 27
4.5.1 Module design................................................................................................................... 27
4.5.2 How the ULTRAMAT 7 works............................................................................................... 28
4.5.3 Reference gas monitoring .................................................................................................. 29
Rack-mounted device
Operating Instructions, A5E31874006-12 3

4.6 CALOMAT 7 ....................................................................................................................... 30
4.6.1 How the CALOMAT 7 works................................................................................................ 31
4.7 Option modules................................................................................................................. 31
5 Combined operation............................................................................................................................ 33
5.1 Slots for analyzer modules ................................................................................................. 33
5.2 Operating modes............................................................................................................... 33
5.2.1 Setting note....................................................................................................................... 33
5.2.2 Serial/parallel operation ..................................................................................................... 34
5.2.3 Pressure operation/Suction operation ................................................................................. 34
5.2.4 Changing the operating mode............................................................................................ 34
5.3 Structure of the gas connections ........................................................................................ 34
5.4 Application planning.......................................................................................................... 38
5.4.1 General safety instructions................................................................................................. 38
5.4.2 Notes on applications planning .......................................................................................... 39
5.4.3 Operation with at least one OXYMAT 7............................................................................... 39
5.4.4 Operation with at least one ULTRAMAT 7............................................................................ 40
5.4.5 Operation with at least one CALOMAT 7 ............................................................................. 40
5.4.6 Operation with di󹪜erent analyzer modules ......................................................................... 41
5.4.7 Retro󹪝tting sample gas restrictors....................................................................................... 42
5.4.8 Sample gas disposal........................................................................................................... 43
5.5 Plug & measure permitted activities.................................................................................... 44
5.5.1 General information........................................................................................................... 44
5.5.2 Notes on con󹪝guration change........................................................................................... 44
5.5.3 Case di󹪜erentiations .......................................................................................................... 45
6 Installing .............................................................................................................................................. 49
6.1 General safety instructions for installation.......................................................................... 49
6.2 Installation instructions...................................................................................................... 51
6.3 Installing the rack-mounted device..................................................................................... 53
7 Installing/removing and connecting analyzer and option modules.................................................... 55
7.1 General safety instructions for con󹪝guration change .......................................................... 55
7.2 Rack-mounted housing tool................................................................................................ 56
7.3 Cables ............................................................................................................................... 56
7.4 Installation of analyzer modules......................................................................................... 58
7.5 Connecting analyzer modules ............................................................................................ 59
7.5.1 Wiring OXYMAT 7............................................................................................................... 59
7.5.2 Connecting the ULTRAMAT 7 .............................................................................................. 60
7.5.3 Connecting CALOMAT 7 ..................................................................................................... 61
7.6 Removing analyzer modules............................................................................................... 62
7.7 Installing option modules................................................................................................... 63
7.7.1 Mounting locations of option modules ............................................................................... 63
7.7.2 Installing option modules................................................................................................... 64
7.8 Wiring option modules....................................................................................................... 65
Table of contents
Rack-mounted device
4Operating Instructions, A5E31874006-12

8 Connecting .......................................................................................................................................... 67
8.1 Gas connections ................................................................................................................ 67
8.1.1 General safety instructions on gas connection .................................................................... 67
8.1.2 Connection information..................................................................................................... 68
8.1.3 Installing/removing the sample gas restrictor...................................................................... 70
8.1.4 Gas connections on the device........................................................................................... 71
8.1.4.1 OXYMAT 7 ......................................................................................................................... 71
8.1.4.2 ULTRAMAT 7 ...................................................................................................................... 72
8.1.4.3 CALOMAT 7 ....................................................................................................................... 73
8.1.5 Connecting gas.................................................................................................................. 73
8.2 Electrical connections ........................................................................................................ 74
8.2.1 General safety instructions for electrical connections.......................................................... 74
8.2.2 Connection information..................................................................................................... 75
8.2.3 Requirements for electrical connection............................................................................... 76
8.2.4 Connecting signal and Ethernet cables ............................................................................... 76
8.2.5 Connecting the power supply............................................................................................. 78
8.2.6 Electrical connections and terminal assignment.................................................................. 79
8.2.7 Spark suppression: Example ............................................................................................... 82
9 Commissioning .................................................................................................................................... 85
9.1 General safety instructions for commissioning.................................................................... 85
9.2 Information on commissioning........................................................................................... 87
9.3 Gas preparation ................................................................................................................. 90
9.4 OXYMAT 7 / ULTRAMAT 7: Introduction of reference gas...................................................... 91
9.4.1 Selection of the reference gas ............................................................................................ 91
9.4.1.1 OXYMAT 7 ......................................................................................................................... 91
9.4.1.2 ULTRAMAT 7 ...................................................................................................................... 92
9.4.2 Requirements for reference gas from the gas cylinder......................................................... 92
9.4.3 Introducing reference gas .................................................................................................. 92
9.4.4 Check the reference gas 󹪞ow ............................................................................................. 93
9.4.5 Reference gas monitoring with pressure switch .................................................................. 93
9.5 Zero point error ................................................................................................................. 94
9.5.1 OXYMAT 7 ......................................................................................................................... 94
9.5.2 CALOMAT 7 ....................................................................................................................... 96
9.6 Checking gas paths for leaks .............................................................................................. 97
9.6.1 General information on leaks ............................................................................................. 97
9.6.2 Recommended test setup for analyzer modules in standard version .................................... 98
9.6.3 Checking OXYMAT 7 for leaks............................................................................................. 99
9.6.4 Checking ULTRAMAT 7 for leaks........................................................................................ 100
9.6.5 Checking CALOMAT 7 for leaks......................................................................................... 100
9.7 Requirements for startup ................................................................................................. 101
9.8 Commissioning the device ............................................................................................... 101
10 Operation........................................................................................................................................... 103
11 Maintenance and service .................................................................................................................. 105
11.1 General safety instructions on service and maintenance ................................................... 105
Table of contents
Rack-mounted device
Operating Instructions, A5E31874006-12 5

11.2 General information on maintenance............................................................................... 107
11.3 Cleaning the device ......................................................................................................... 107
11.4 Maintaining analyzers...................................................................................................... 107
11.5 Replacing the basic device................................................................................................ 107
11.6 Replacing the processing unit........................................................................................... 109
11.7 Replacing option modules................................................................................................ 110
11.8 Eliminating faults and errors ............................................................................................ 111
12 Decommissioning, dismantling and disposal .................................................................................... 113
12.1 Safety instructions for decommissioning .......................................................................... 113
12.2 Decommissioning the device............................................................................................ 114
12.3 Uninstalling the device..................................................................................................... 115
12.4 Disposing of the device.................................................................................................... 115
12.5 Information on recycling.................................................................................................. 115
13 Technical speci󹪝cations ..................................................................................................................... 117
13.1 Determining the technical speci󹪝cations .......................................................................... 117
13.2 Technical speci󹪝cations of rack-mounted housing............................................................. 117
13.3 Technical speci󹪝cations of analyzer modules..................................................................... 119
13.3.1 OXYMAT 7 technical speci󹪝cations ................................................................................... 119
13.3.2 Technical data ULTRAMAT 7.............................................................................................. 123
13.3.3 CALOMAT 7 technical speci󹪝cations.................................................................................. 127
14 Dimension drawings.......................................................................................................................... 131
A Appendix............................................................................................................................................ 133
A.1 Conformity with European directives................................................................................ 133
A.2 Certi󹪝cate ........................................................................................................................ 134
A.3 Abbreviations .................................................................................................................. 134
A.4 References....................................................................................................................... 135
A.5 Spare parts/accessories .................................................................................................... 138
A.5.1 Notes............................................................................................................................... 138
A.5.2 Spare parts slide-in device................................................................................................ 139
A.5.3 Spare parts OXYMAT 7 ..................................................................................................... 140
A.5.4 Spare parts ULTRAMAT 7 .................................................................................................. 142
A.5.5 Spare parts CALOMAT 7 ................................................................................................... 148
A.6 Technical support............................................................................................................. 149
A.7 Return procedure............................................................................................................. 149
Index .................................................................................................................................................. 151
Table of contents
Rack-mounted device
6Operating Instructions, A5E31874006-12

Introduction 1
1.1 Purpose of this document
These operating instructions include all the necessary information on the operating principle
and the safe usage of the device. These are instructions on the mounting, commissioning,
operation, servicing, decommissioning and dismantling of the device.
These operating instructions are intended for quali󹪝ed personnel who have been instructed in
all work on a device in non-hazardous areas and in possible dangers arising from improper
conduct and who have been trained.
It is your responsibility to read the operating instructions thoroughly and understand them
before beginning work. To ensure correct handling, become acquainted with the principle of
operation of the device.
The operating instructions belong to the device. Keep them in the direct vicinity of the device
1.2 History
The following table includes information on the di󹪜erent editions of this document.
Table 1-1 History
Edition Comment
01/2013 First edition
05/2014 Expansion option modules OM 1.1 and OM 2.2 (analog inputs, digital inputs, digital out‐
puts), corrections
05/2015 Extension for analyzer modules CALOMAT 7 and ULTRAMAT 7
03/2016 Additional module combinations for CALOMAT 7 and ULTRAMAT 7
Extended ULTRAMAT 7 area of application: measurement of components NO, N2O, SO2,
CH4, C2H4, NH3
06/2017 ULTRAMAT 7: Measurement of two components simultaneously.
Corrosion resistant versions of ULTRAMAT 7 and OXYMAT 7
Cleaned for O2: Variants with specially cleaned gas path for sample gases with high oxygen
content
05/2018 Expansion and updating of the document
Wall-mounted device: Analyzer modules OXYMAT 7 and ULTRAMAT 7, high-temperature
version
11/2019 Expansion and updating of the document
Wall-mounted device: Revision of the sections OXYMAT 7 and ULTRAMAT 7 in high-temper‐
ature version
01/2022 General expansion and updating of the document
Rack-mounted device
Operating Instructions, A5E31874006-12 7

1.3 Purpose
The device is designed for the concentration analysis of gases in gas mixtures. Depending on the
installed analyzer module, di󹪜erent gases can be examined.
Use the device only for measuring/analysis of gas concentrations in gas mixtures according to
the information in section "Technical speci󹪝cations (Page 117)".
Note
Aggregate state of examined substances
The system can only be used for gaseous samples.
Note
This device meets the requirements of NAMUR Recommendation 53.
Note
Use in home environment
This equipment of Class A Group 1 is intended solely for use in industrial areas.
If used in homes, the device may cause radio interference.
Note
For more information on the compatibility of the hardware and 󹪝rmware, refer to:
Siemens Industry Online Support (https://support.industry.siemens.com/cs/de/en/ps/17731).
You will 󹪝nd more information in the operating instructions, see
"References (Page 135)".
1.4 Field of application
These operating instructions only describe non explosion-proof SIPROCESS GA700 rack-
mounted devices. You can 󹪝nd information on explosion-proof SIPROCESS GA700 devices in the
compact operating instructions "Devices in explosion-proof version", see Table A-6 References 5 -
Compact Operating Instructions Ex (Page 136).
A SIPROCESS GA700 rack-mounted device comprises a housing into which up to two
exchangeable analyzer modules can be inserted. The rack-mounted device is suitable for
installing in a control cabinet or in a frame. The analyzer modules are selected according to the
measuring task and local conditions.
The standard analyzer modules OXYMAT 7, ULTRAMAT 7 and CALOMAT 7 are available for rack-
mounted devices.
Introduction
1.4 Field of application
Rack-mounted device
8Operating Instructions, A5E31874006-12

The following table provides an overview of the device variants.
Table 1-2 SIPROCESS GA700 devices with analyzer modules
Device variants MLFB number1)
Basic device:
Rack-mounted device 7MB3000-0****-****
Analyzer modules, standard version:
OXYMAT 7 7MB302*-0***0-*AA*
ULTRAMAT 7 7MB301*-0****-0A**
CALOMAT 7 7MB304*-0****-0***
1) Machine-readable product designation
1.5 Proper use
Proper use within the context of this manual means that the product may be used only for the
applications described in the catalog or the technical description, and only in combination with
the equipment, components and devices of other manufacturers recommended or approved by
Siemens.
1.6 Quali󹪝ed personnel
Persons who install, connect, commission, operate, service, maintain and disassemble the
device must have the following speci󹪝c quali󹪝cations:
• They are authorized and trained or instructed in operating and maintaining devices and
systems according to the safety regulations for electrical circuits, high pressures and
corrosive as well as hazardous media.
• They are trained or instructed in the maintenance and use of appropriate safety equipment
according to the pertinent safety regulations.
1.7 Checking delivery
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 the damaged parts until clari󹪝cation.
Introduction
1.7 Checking delivery
Rack-mounted device
Operating Instructions, A5E31874006-12 9

4. Check the scope of delivery for correctness and completeness on the basis of the delivery
note. Compare the serial numbers on the delivery note with the serial numbers on the basic
device or on the analyzer modules.
5. Check whether the package includes the following items:
– CD-ROM "Manual Collection" CD-ROM "Manual Collection"
– This printed copy of the Compact Operating Instructions (not with loose delivery).
Note
Installation of analyzer modules
The analyzer module is only installed in the basic device at the factory if you select the options
"D00 to D99" when ordering an analyzer module.
If you do not specify the module assignment/installation location during the ordering process,
the analyzer module is delivered separately from the basic device ("separate delivery").
If the analyzer module is delivered separately, you must install it in the basic device yourself.
Information on this point is only available in the Operating Instructions of the unit,
see "References (Page 135)".
See also
Installing/removing and connecting analyzer and option modules (Page 55)
1.8 Transportation and storage
To ensure su󹪟cient 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, please ensure that all shipments are
su󹪟ciently protected during transport by the replacement packaging. The manufacturer
accepts no liability for additional costs resulting from damage during transportation.
• Store the device in a dry place, vibration-free and horizontal.
Note
Insu󹪟cient protection during storage
The packaging only provides limited protection against moisture and in󹪝ltration.
• Provide additional packaging as necessary.
Special conditions for storage and transportation of the device are listed in section "Technical
speci󹪝cations (Page 117)".
Introduction
1.8 Transportation and storage
Rack-mounted device
10 Operating Instructions, A5E31874006-12

1.9 Warranty conditions
We expressly point out that the product quality is exclusively and conclusively described in the
sales contract. The content of this product documentation is neither a part of a previous or
existing agreement, promise or legal relationship, nor is it intended to modify these. All
obligations on the part of Siemens AG are contained in the respective sales contract, which also
contains the complete and solely applicable liability provisions. The provisions de󹪝ned in the
sales contract for the responsibility for defects are neither extended nor limited by the remarks
in this document.
Introduction
1.9 Warranty conditions
Rack-mounted device
Operating Instructions, A5E31874006-12 11

Introduction
1.9 Warranty conditions
Rack-mounted device
12 Operating Instructions, A5E31874006-12

Safety instructions 2
2.1 Requirements for safe use
In terms of safety, this device left the factory in perfect condition. In order to maintain this status
and to ensure safe operation of the device, observe these operating instructions and all the
information 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 and
renew it, if necessary.
Symbol Description
Consult operating instructions
Hot surface
Dangerous electrical voltage
2.1.1 Laws and directives
Observe the test certi󹪝cation, provisions and laws applicable in your country during connection,
assembly and operation in the respectively valid version. These include, for example:
• National Electrical Code (NEC - NFPA 70) (USA)
• Canadian Electrical Code (CEC) (Canada)
Additional information is available at:
Certi󹪝cate (Page 134)
Rack-mounted device
Operating Instructions, A5E31874006-12 13

2.1.2 Conformity with European directives
The CE marking on the device shows conformity with the regulations of the following European
guidelines:
Electromagnetic compatibili‐
ty EMC 2014/30/EU
Directive of the European Parliament and of the Council
of 26 February 2014 on the harmonization of the laws of the
Member States relating to electromagnetic compatibility (new
version)
Low voltage directive LVD
2014/35/EU
Directive of the European Parliament and of the Council of 26
February 2014 on the harmonization of the laws of the Member
States relating to the making available on the market of electrical
equipment designed for use within certain voltage limits (new
version)
Atmosphère explosible
ATEX 2014/34/EU
Directive of the European Parliament and of the Council of 26
February 2014 on the harmonization of the laws of the Member
States relating to equipment and protective systems intended
for use in potentially explosive atmospheres (new version)
Restriction of certain
Hazardous Substances
RoHS 2011/65/EU
Directive of the European Parliament and of the Council
of 8 June 2011 on the restriction of the use of certain hazardous
substances in electrical and electronic equipment (new version)
The standards applied can be found in the EU Declaration of Conformity for the associated
device.
2.2 Basic safety instructions
Industrial security
Siemens provides products and solutions with industrial security functions that support the
secure operation of plants, systems, machines and networks.
In order to protect plants, systems, machines and networks against cyber threats, it is necessary
to implement – and continuously maintain – a holistic, state-of-the-art industrial security
concept. Siemens’ products and solutions constitute one element of such a concept.
Customers are responsible for preventing unauthorized access to their plants, systems,
machines and networks. Such systems, machines and components should only be connected to
an enterprise network or the Internet if and to the extent such a connection is necessary and only
when appropriate security measures (e.g. 󹪝rewalls and/or network segmentation) are in place.
You can 󹪝nd more possible protective measures in the area of industrial security at Industrial
security (https://www.siemens.com/industrialsecurity).
Siemens’ products and solutions undergo continuous development to make them more secure.
Siemens expressly recommends that product updates be applied as soon as they become
available and that only the latest product versions be used. Use of product versions that are no
longer supported, and failure to apply latest updates may increase customer’s exposure to cyber
threats.
Safety instructions
2.2 Basic safety instructions
Rack-mounted device
14 Operating Instructions, A5E31874006-12

To stay informed about product updates, subscribe to the Siemens Industrial Security RSS Feed
under: Industrial security (https://www.siemens.com/industrialsecurity)
WARNING
Introduction of combustible gases
Explosion hazard
Devices in standard version are not designed for use in hazardous areas.
• Do not use a standard version of the analyzer in hazardous areas.
• Supply gases with 󹪞ammable components at concentrations above the lower explosion
limit (LEL) only in devices with pipes.
WARNING
Device modi󹪝cations
Danger to personnel, system and the environment can result from modi󹪝cations and repairs to
the device.
• Only carry out modi󹪝cations or repairs that are described in the operating instructions for
the device.
• Failure to observe this requirement cancels the manufacturer's warranty and the product
approvals.
WARNING
Faults in the process resulting from incorrectly displayed measured values
An incorrectly displayed measured value can result in misinterpretations or faults in the process.
Take appropriate measures to guarantee a fault-free process.
Safety instructions
2.2 Basic safety instructions
Rack-mounted device
Operating Instructions, A5E31874006-12 15

Safety instructions
2.2 Basic safety instructions
Rack-mounted device
16 Operating Instructions, A5E31874006-12

General information 3
3.1 KC Safety note - Information for Korea only
Class A Equipment (Industrial Broadcasting & Communication Equipment)
This equipment is Industrial (Class A) electromagnetic wave suitability equipment and seller or
user should take notice of it, and this equipment is to be used in the places except for home.
MSIP 요구사항 ‑ For Korea only
A급 기기(업무용 방송통신기자재)
이 기기는 업무용(A급) 전자파 적합기기로서 판매자 또는 사용자는 이 점을 주의하시기 바라며,
가정 외의 지역에서 사용하는것을 목적으로 합니다.
3.2 Requirements for special applications
Due to the number or possible applications, this document does not include all detailed
information on the described device versions. This means not every possible scenario for
commissioning, operating, maintenance or operation in plants is taken into consideration.
Should you require additional information which is not included in these instructions, please
contact your local SIEMENS o󹪟ce or your SIEMENS partner.
Note
Operation under special ambient conditions
If you want to use the device under special ambient conditions, for example, in nuclear power
plants or for research and development purposes,
we recommend:
First contact your local SIEMENS partner or our application department. Explain the speci󹪝c
application and clarify the operating conditions.
3.3 Automatic reset
All SIPROCESS GA700 devices feature internal monitoring. When this monitoring is activated,
the standard digital outputs switch after about 4 seconds for a period of approx. 60 seconds to
"inactive", i.e. to a recognized safe operating mode. These times are valid for devices
manufactured as of 09/2017. You can 󹪝nd this information on the nameplate. It can take up to
10 seconds for older devices to switch over, and up to 100 seconds to switch to safe operating
mode.
Rack-mounted device
Operating Instructions, A5E31874006-12 17

If you are using SIPROCESS GA700 devices in critical processes, observe the following
information:
• Monitor the limits externally via the control system.
• If an option module 2.1 is installed, read out the device status via the digital outputs of the
option module.
• Use an available manual measuring range switchover instead of the autoranging.
• Only use the "Total" parameter with the "O󹪜" setting for the measuring range switchover.
• If you use the "Correction of cross-interference" and "External pressure compensation"
functions, store suitable substitute values.
• Only access the measured value via an analog output.
3.4 Measuring high oxygen concentrations
Note
Measuring high oxygen concentrations
For the measurement of high O2 concentrations in excess of 25%, it is absolutely necessary that
all parts that come in contact with the sample gas are free of oil and grease and do not contain
any particles that could react with O2.
We highly recommend you use specially cleaned analyzer modules with the "Cleaned for O2"
option for such measurements.
General information
3.4 Measuring high oxygen concentrations
Rack-mounted device
18 Operating Instructions, A5E31874006-12

Description 4
4.1 Overview
Rack-mounted devices have a modular structure. A rack-mounted device comprises a rack-
mounted housing and at least one analyzer module. Optionally, rack-mounted devices can be
󹪝tted with option modules.
De󹪝nition of rack-mounted device and rack-mounted housing
The following terms are used in the operating instructions:
• Basic device, rack-mounted housing
This includes the metal housing for installation in a 19" rack with local user interface, built-
in processing unit (PU) and a power supply unit. A rack-mounted housing (basic device) is
prepared for installation of the analyzer and option modules.
• Rack-mounted device
This includes a rack-mounted housing (basic unit) with at least one analyzer module (AM)
installed.
Overview of analyzer modules
The analyzer modules are matched with speci󹪝c sample gas components and measuring ranges.
Various types of measuring methods are implemented.
The following table provides an overview of the features of the measuring tasks of the analyzer
modules.
Table 4-1 Measuring task of the analyzer modules
Analyzer modules Sample gas in gas mixtures Measuring principle
OXYMAT 7 O2Paramagnetic alternating pres‐
sure method
ULTRAMAT 7 CO, CO2, CH4, C2H4, SO2, NO, N2O,
NH3
Infrared push-pull chopped radi‐
ation method
CALOMAT 7 H2 and additional gases in binary
or quasi-binary gas mixtures
Di󹪜erence in thermal conductivi‐
ty of gases
Rack-mounted device
Operating Instructions, A5E31874006-12 19

4.2 Design of rack-mounted housing
1
2
8
7
5
3
4
6
①Power supply unit ⑤Door
②Processing unit ⑥Ethernet service interface
③Mounting location AM1 ⑦Keyboard
④Mounting location AM2 ⑧Display
Figure 4-1 Design of rack-mounted housing
The device is secured with four screws, for example in a cabinet or frame, see section "Installing
the rack-mounted device (Page 53)".
The front panel is equipped with a display ⑧, a keypad ⑦, and a removable door ⑤. The door
is locked with screws and may only be opened for maintenance purposes by loosening the
screws, see section "Rack-mounted housing tool (Page 56)".
The device provides space for the installation of two option modules and two analyzer modules
AM1 ③ and AM2 ④. The power supply ① and the processing unit ② are located on the left.
More information on the mounting locations of the option modules can be found in section
Mounting locations of option modules (Page 63).
Description
4.2 Design of rack-mounted housing
Rack-mounted device
20 Operating Instructions, A5E31874006-12