Siemens ULTRAMAT 23 Series Technical Document

Continuous gas analysis
ULTRAMAT 23
Gas analyzer for measuring IR-
absorbing gases, UV-absorbing
gases, oxygen and hydrogen
sul󹪝de
ULTRAMAT 23
Equipment Manual
7MB2335, 7MB2337, 7MB2338, 7MB2355, 7MB2357,
7MB2358
04/2022
A5E37100388-012
Introduction 1
Safety instructions 2
Description 3
installation 4
Connecting 5
Commissioning 6
Operation 7
Functions 8
Application note 9
Service and maintenance 10
Error and system messages 11
Taking out of operation and
disposal 12
Spare parts/accessories 13
Appendix A
ESD directives B
List of abbreviations C

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: A5E37100388
Ⓟ 10/2022 Subject to change
Copyright © Siemens AG 2016 - 2018.
All rights reserved

Table of contents
1 Introduction........................................................................................................................................... 9
1.1 Information for our customers.............................................................................................. 9
1.2 Product versions .................................................................................................................. 9
1.3 General information ............................................................................................................ 9
1.4 Special information and warnings ...................................................................................... 10
1.5 Proper use ......................................................................................................................... 10
1.6 Quali󹪝ed Personnel ............................................................................................................ 11
1.7 Warranty conditions........................................................................................................... 12
1.8 Delivery information .......................................................................................................... 12
1.9 Standards and regulations.................................................................................................. 12
1.10 Conformity with European directives.................................................................................. 12
2 Safety instructions............................................................................................................................... 13
2.1 General ............................................................................................................................. 13
2.1.1 Security information .......................................................................................................... 13
2.1.2 Information on industrial use ............................................................................................. 16
2.2 Analyzers in biogas plants .................................................................................................. 17
2.3 Analyzers in hazardous areas.............................................................................................. 17
3 Description........................................................................................................................................... 19
3.1 Area of application............................................................................................................. 19
3.2 Design............................................................................................................................... 22
3.3 Function ............................................................................................................................ 24
3.4 Technical speci󹪝cations ...................................................................................................... 32
3.4.1 General technical data ....................................................................................................... 32
3.4.2 IR analyzer unit .................................................................................................................. 34
3.4.3 UV module ........................................................................................................................ 36
3.4.4 Electrochemical oxygen sensor........................................................................................... 37
3.4.5 Paramagnetic oxygen sensor.............................................................................................. 38
3.4.6 Hydrogen sul󹪝de sensor..................................................................................................... 41
3.4.7 Parts in gas path wetted by sample gas............................................................................... 42
3.5 Wiring diagrams................................................................................................................. 43
3.5.1 Gas 󹪞ow diagram............................................................................................................... 43
3.5.2 Gas connections ................................................................................................................ 50
3.5.3 Connection diagrams......................................................................................................... 51
3.5.4 Pin assignments................................................................................................................. 53
3.6 Dimensional drawings........................................................................................................ 55
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3.7 Communication ................................................................................................................. 59
3.7.1 General information........................................................................................................... 59
3.7.2 ELAN interface................................................................................................................... 59
3.7.3 PROFIBUS DP/PA................................................................................................................. 60
3.7.4 SIPROM GA ........................................................................................................................ 61
3.7.4.1 SIPROM GA functions ......................................................................................................... 61
4 installation........................................................................................................................................... 63
5 Connecting .......................................................................................................................................... 67
5.1 Safety instructions ............................................................................................................. 67
5.1.1 General information........................................................................................................... 67
5.1.2 Analyzers in hazardous areas.............................................................................................. 69
5.1.3 Analyzers in biogas plants .................................................................................................. 70
5.2 Gas connections and internal gas path ............................................................................... 70
5.2.1 Gas connections ................................................................................................................ 70
5.2.2 Gas preparation ................................................................................................................. 71
5.3 Electrical connection.......................................................................................................... 72
5.3.1 Connection of the signal lines ............................................................................................ 72
5.3.2 Power connection.............................................................................................................. 73
6 Commissioning .................................................................................................................................... 77
6.1 Safety instructions ............................................................................................................. 77
6.1.1 General information........................................................................................................... 77
6.1.2 For use in hazardous areas ................................................................................................. 79
6.1.3 Use in biogas plants ........................................................................................................... 80
6.2 Preparation for commissioning........................................................................................... 80
6.2.1 Leaks in the gas paths........................................................................................................ 80
6.2.2 Gas preparation ................................................................................................................. 81
6.2.3 Device interfaces ............................................................................................................... 81
6.3 Commissioning.................................................................................................................. 81
6.3.1 Commissioning.................................................................................................................. 81
6.3.2 AUTOCAL........................................................................................................................... 82
6.3.3 Initial calibration................................................................................................................ 83
6.4 System setup with several analyzers in parallel ................................................................... 84
7 Operation............................................................................................................................................. 87
7.1 General information........................................................................................................... 87
7.2 User prompting.................................................................................................................. 88
7.3 Display and control panel ................................................................................................... 89
7.3.1 Display and operator panel................................................................................................. 89
7.3.2 User interface .................................................................................................................... 91
7.3.3 Key assignments ................................................................................................................ 92
7.4 Operating modes............................................................................................................... 92
7.4.1 Warm-up phase ................................................................................................................. 93
7.4.2 Measuring mode................................................................................................................ 94
7.4.3 Input mode........................................................................................................................ 95
7.4.3.1 Code levels ........................................................................................................................ 95
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7.4.3.2 Key operations step by step................................................................................................ 96
7.4.3.3 The ESC key ....................................................................................................................... 99
7.4.3.4 The CAL key....................................................................................................................... 99
7.4.3.5 The PUMP key .................................................................................................................. 100
8 Functions ........................................................................................................................................... 101
8.1 Diagnostics...................................................................................................................... 101
8.1.1 Diagnostics: Status........................................................................................................... 103
8.1.1.1 Analyzer status: Status: Logbook/faults............................................................................. 103
8.1.1.2 Analyzer status: Status: Maintenance request ................................................................... 104
8.1.1.3 Analyzer status: Status: AUTOCAL deviation...................................................................... 104
8.1.1.4 Analyzer status: Status: O2 sensor status.......................................................................... 105
8.1.1.5 Analyzer status: Status: H2S sensor status ........................................................................ 105
8.1.2 Diagnostics: Diagnostics values ........................................................................................ 105
8.1.2.1 Analyzer status: Diagnostics values: IR.............................................................................. 106
8.1.2.2 Diagnostics: Diagnostic values: UV ................................................................................... 107
8.1.2.3 Analyzer status: Diagnostics values: (Electrochemical) O2 sensor...................................... 108
8.1.2.4 Analyzer status: Diagnostics values: (Paramagnetic) O2 sensor ......................................... 109
8.1.2.5 Analyzer status: Diagnostics values: H2S sensor................................................................ 109
8.1.2.6 Diagnostics: Diagnostic values: Pressure and temperature................................................. 109
8.1.2.7 Diagnostics: Diagnostic values: Other diagnostics:............................................................ 110
8.1.3 Analyzer status: Factory settings hardware ....................................................................... 112
8.1.4 Analyzer status: Factory settings software ........................................................................ 112
8.2 Calibration....................................................................................................................... 113
8.2.1 Calibration: Infrared components..................................................................................... 115
8.2.1.1 Calibration: Infrared component: Set span gas values ....................................................... 116
8.2.1.2 Calibration: Infrared component: Start with Range MR 1/2................................................ 116
8.2.2 Calibration: Electrochemical oxygen measuring range ...................................................... 117
8.2.2.1 Calibration: O2 measuring range: Sensor inst. date .......................................................... 117
8.2.2.2 Calibration: O2 measuring range: Calibrating the O2 zero point ....................................... 117
8.2.2.3 Calibration: O2 measuring range: Calibrate measuring range............................................ 118
8.2.3 Calibration: Paramagnetic oxygen sensor ......................................................................... 119
8.2.3.1 Calibration: O2 paramagnetic: Calibrating the zero point .................................................. 119
8.2.3.2 Calibration: O2 paramagnetic: Calibrating the measuring range........................................ 119
8.2.4 Calibration: H2S sensor.................................................................................................... 120
8.2.4.1 Calibration: H2S sensor: De󹪝ning the installation.............................................................. 121
8.2.4.2 Calibration: H2S sensor: Calibrating the zero point ........................................................... 121
8.2.4.3 Calibration: H2S sensor: Calibrating the measuring range ................................................. 122
8.2.4.4 Calibration: H2S sensor: Enter TC parameters ................................................................... 123
8.2.5 Calibration: Ultraviolet components ................................................................................. 124
8.2.6 Calibration: Pressure sensor ............................................................................................. 124
8.2.7 Calibration: AUTOCAL/drift values .................................................................................... 125
8.2.7.1 Calibration: AUTOCAL/drift values: Drift values ................................................................. 125
8.2.7.2 Calibration: AUTOCAL/drift values: Cycle time................................................................... 126
8.2.7.3 Calibration: AUTOCAL/drift values: Purge time .................................................................. 126
8.3 Parameter........................................................................................................................ 126
8.3.1 Parameter: Measuring ranges........................................................................................... 127
8.3.1.1 Parameters: Measuring ranges: Switch ranges .................................................................. 128
8.3.1.2 Parameters: Measuring ranges: Setting measuring ranges ................................................ 129
8.3.1.3 Parameters: Measuring ranges: Hysteresis ........................................................................ 130
8.3.2 Parameters: Limits ........................................................................................................... 130
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8.3.3 Parameters: Limits: H2S sensor protection ........................................................................ 131
8.3.4 Parameters: Time constants ............................................................................................. 132
8.3.5 Parameter: Pump/LCD contrast ......................................................................................... 132
8.3.5.1 Parameters: Pump/LCD contrast: Pump ............................................................................. 133
8.3.5.2 Parameters: Pump/LCD contrast: LCD contrast................................................................... 133
8.4 Con󹪝guration................................................................................................................... 133
8.4.1 Con󹪝guration: Inputs/outputs/pump................................................................................. 136
8.4.1.1 Con󹪝guration: Inputs/outputs/pump: Analog outputs........................................................ 137
8.4.1.2 Con󹪝guration: Inputs/outputs/pump: Assign relays ........................................................... 140
8.4.1.3 Con󹪝guration: Inputs/outputs/pump: Binary/sync inputs ................................................... 143
8.4.1.4 Con󹪝guration: Inputs/outputs/pump: Pump at CAL/MEAS.................................................. 144
8.4.2 Con󹪝guration: Special functions....................................................................................... 144
8.4.2.1 Con󹪝guration: Special functions: Changing the codes/language........................................ 145
8.4.2.2 Con󹪝guration: Special functions: AUTOCAL deviation (only for IR components) ................. 146
8.4.2.3 Con󹪝guration: Special functions: ELAN/PROFIBUS/external interference ............................ 147
8.4.2.4 Con󹪝guration: Special functions: Factory data/reset/units ................................................. 151
8.4.3 Con󹪝guration: Device test ................................................................................................ 153
8.4.3.1 Con󹪝guration: Device test: RAM monitor .......................................................................... 153
8.4.3.2 Con󹪝guration: Device test: Display/keys/󹪞ow .................................................................... 154
8.4.3.3 Con󹪝guration: Device test: Inputs/outputs ........................................................................ 154
8.4.3.4 Con󹪝guration: Device test: Chopper/IR source................................................................... 156
8.4.4 Con󹪝guration: Factory con󹪝guration ................................................................................ 157
8.5 Automatically executed functions of the H2S sensors ....................................................... 157
8.5.1 Probe protection and purging function ............................................................................. 157
8.5.2 Probe protection function................................................................................................. 157
8.5.3 Probe purging function .................................................................................................... 159
9 Application note ................................................................................................................................ 163
10 Service and maintenance .................................................................................................................. 167
10.1 Safety instructions ........................................................................................................... 167
10.1.1 General safety instructions............................................................................................... 167
10.1.2 Safety information for analyzers used in hazardous areas.................................................. 168
10.2 Maintenance work ........................................................................................................... 169
10.2.1 Cleaning the device ......................................................................................................... 169
10.2.2 Maintenance of the gas path............................................................................................ 169
10.2.3 Replacing spare parts ....................................................................................................... 170
10.2.4 Replacing fuses................................................................................................................ 170
10.2.5 Replacing the 󹪝ne safety 󹪝lter........................................................................................... 171
10.2.6 Maintenance work on the bench-top unit ......................................................................... 171
10.2.6.1 Emptying the condensation trap ...................................................................................... 171
10.2.6.2 Replacing the coarse 󹪝lter ................................................................................................ 171
10.2.7 Replacement of the UV module........................................................................................ 172
10.2.8 Replacing the electrochemical oxygen sensor ................................................................... 173
10.2.9 Replacing the hydrogen sul󹪝de sensor.............................................................................. 174
10.2.10 Replacing the paramagnetic oxygen sensor ...................................................................... 178
11 Error and system messages ............................................................................................................... 179
11.1 Maintenance requests...................................................................................................... 179
11.2 Faults .............................................................................................................................. 180
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12 Taking out of operation and disposal ................................................................................................ 185
12.1 Repair or changing of location.......................................................................................... 185
12.2 Scrapping the analyzer..................................................................................................... 185
13 Spare parts/accessories...................................................................................................................... 189
13.1 Ordering of spare parts .................................................................................................... 189
13.2 General note.................................................................................................................... 190
13.3 Gas path.......................................................................................................................... 190
13.4 Electronics....................................................................................................................... 194
13.5 Pump............................................................................................................................... 196
13.6 IR analyzer units............................................................................................................... 197
13.6.1 IR-analyzer unit 7MB2335-, 7MB2355-, with one measured component on the 󹪝rst IR
channel ........................................................................................................................... 197
13.6.2 IR analyzer unit 7MB2337-, 7MB2357-, with one measured component each on of the
󹪝rst and second IR channel............................................................................................... 199
13.6.3 IR analyzer unit 7MB2338-, 7MB2358-, setup with two measured components on the
󹪝rst IR channel ................................................................................................................. 201
13.6.3.1 IR analyzer unit for CO/NO (measured component and measuring range AA, AB, AC, AK)... 201
13.6.3.2 IR analyzer unit for CO/NO (measured component and measuring range AD) .................... 203
13.6.3.3 IR analyzer unit for CO2/NO (measured component and measuring range DC)................... 205
13.6.3.4 IR analyzer unit for CO/CO2 and CO2/CH4 (measured component and measuring range
BA, BD, CB) ...................................................................................................................... 207
13.6.3.5 IR analyzer unit for CO/CO2 and CO2/CH4 (measured component and measuring range
BB, CA) ............................................................................................................................ 209
13.6.3.6 IR analyzer unit for CO2/CO (measured component and measuring range BJ, BK, BL)......... 211
13.6.4 IR analyzer unit 7MB2338-, 7MB2358-, third measured component on the second IR
channel ........................................................................................................................... 213
13.7 UV module ...................................................................................................................... 214
13.8 Sensors............................................................................................................................ 215
A Appendix............................................................................................................................................ 217
A.1 Technical support............................................................................................................. 217
A.2 Return procedure ............................................................................................................. 217
A.3 Pressure conversion table................................................................................................. 218
B ESD directives .................................................................................................................................... 219
B.1 ESD guidelines................................................................................................................. 219
C List of abbreviations .......................................................................................................................... 221
C.1 List of abbreviations......................................................................................................... 221
Index.................................................................................................................................................. 227
Table of contents
ULTRAMAT 23
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Table of contents
ULTRAMAT 23
8Equipment Manual, 04/2022, A5E37100388-012

Introduction 1
1.1 Information for our customers
Before beginning work with this device, please read this manual! It contains important
information and data whose observation ensures proper device function and saves you
servicing costs. The manual will help you to operate the device more easily and e󹪟ciently,
allowing you to achieve reliable results.
1.2 Product versions
The ULTRAMAT 23 gas analyzer is suitable for a wide variety of measurements and is therefore
available in di󹪜erent versions. The data on the label, among others, indicates which device
version you have.

1 Data matrix code
2 Disposal information according to DIN EN 54019: Do not dispose with household waste!
3 CE conformity symbol
4 Name and address of manufacturer
5 Designation of origin
6 Measuring range(s)
7 Serial number
8 Order No. (MLFB number) of the device
9 Device name
Figure 1-1 ULTRAMAT 23 label (example)
1.3 General information
This device left the factory in a safe and proper condition and has been tested. In order to
maintain this condition and to ensure safe operation, it should only be used in the manner
described by the manufacturer. Furthermore, proper transportation, storage, installation,
operation and maintenance of the device are vital for ensuring correct and safe operation.
ULTRAMAT 23
Equipment Manual, 04/2022, A5E37100388-012 9

This manual contains the information required for the intended use of the described product.
It is addressed to technically quali󹪝ed personnel who are specially trained or who have the
relevant knowledge of automation technology (measuring and control systems).
Knowledge and technically correct implementation of the safety notes and warnings contained
in this manual are required for safe installation and commissioning, as well as for safety during
the operation and maintenance of the described product. Only quali󹪝ed personnel have the
required professional knowledge for correctly interpreting the generally valid safety notes and
warnings in this manual in each speci󹪝c case and to act accordingly.
This manual is not included in the scope of delivery for the device. It can be downloaded under:
Process analytics manuals (https://support.industry.siemens.com/cs/products?
dtp=Manual&mfn=ps&pnid=17702&lc=en-WW)
Due to the variety of technical details, it is not possible to consider every single detail for all
versions of the described product and for every conceivable case in the set-up, operation,
maintenance and use in systems. For further information, or in the case of problems which are
not covered in enough detail in this document, please request the required information from
your local or responsible Siemens regional o󹪟ce.
Note
In particular, before using the device for new research and development applications, we
recommend that you 󹪝rst contact us to discuss the application in question.
1.4 Special information and warnings
This manual provides you with information on using, installing, operating, and maintaining the
device.
Pay particular attention to all special information and warnings. Information of this type is set
apart from the rest of the text and is marked with the corresponding pictograms. This
information provides you with useful tips and helps avoid maloperations.
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 permitted by
Siemens.
The product described in this manual has been developed manufactured, tested and
documented in compliance with relevant safety standards. When the handling rules described
for the con󹪝guration, installation, proper operation and maintenance, as well at the safety
guidelines are adhered to, therefore, there is normally no risk to the health of persons or in
respect to damage to property.
Introduction
1.5 Proper use
ULTRAMAT 23
10 Equipment Manual, 04/2022, A5E37100388-012

This device was designed to ensure safe isolation of the primary and secondary circuits. Low
voltages that are connected must therefore also be generated with safe isolation.
WARNING
Dangerous contact voltage
After removing the housing or protection against direct contact or after opening the system
cabinet, certain parts of of this device/system will be exposed that can carry hazardous voltage.
Therefore, only appropriately quali󹪝ed persons are permitted to perform work within this
device. These persons must be thoroughly familiar with all sources of danger and service
activities in accordance with these operating instructions.
Note
Observe the environmental conditions for the rack unit and bench-top unit
Ensure compliance with the environmental conditions listed in the technical speci󹪝cations
(Page 32).
• During operation
• In the event of maintenance
Note
Environmental conditions for bench-top unit in accordance with IEC 61010-1-2010
According to IEC 61010-1-2010, the bench-top unit may only be used indoors.
1.6 Quali󹪝ed Personnel
Quali󹪝ed personnel are individuals who are familiar with the installation, mounting,
commissioning, and operation of the product. These people have the following quali󹪝cations:
• They are authorized, trained or instructed in operating and maintaining devices and systems
according to the safety regulations for electrical circuits, high pressures and aggressive as
well as hazardous media.
• For explosion-proof devices: They are authorized, trained, or instructed in carrying out work
on electrical circuits for hazardous systems.
• They are trained or instructed in the maintenance and use of appropriate safety equipment
according to the safety regulations.
Introduction
1.6 Quali󹪝ed Personnel
ULTRAMAT 23
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1.7 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.
1.8 Delivery information
The respective scope of delivery is listed on the shipping documents in accordance with the valid
sales contract. These are enclosed with the delivery.
When opening the packaging, please observe the corresponding information on the packaging
material. Check the delivery for completeness and undamaged condition. In particular, the
Order No. on the labels, if present, must be compared with the ordering data.
If possible, please keep the packaging material since you can reuse it for return deliveries if
necessary.
1.9 Standards and regulations
As far as possible, the harmonized European standards were the basis for the speci󹪝cation and
production of this device. If no harmonized European standards have been applied, the
standards and regulations for the Federal Republic of Germany are valid.
When this product is used beyond the scope of these standards and regulations, the valid
standards and regulations of the country of the operating company apply.
1.10 Conformity with European directives
The CE mark on the device is a sign of conformity with the following European directives:
Directive for electro‐
magnetic compatibility
(EMC)
DIRECTIVE 2014/30/EU OF THE EUROPEAN PARLIAMENT AND OF THE
COUNCIL on the harmonization of the laws of the Member States
relating to electromagnetic compatibility.
Explosion protection
directive
ATEX
DIRECTIVE 2014/34/EU OF THE EUROPEAN PARLIAMENT AND OF THE
COUNCIL on the harmonization of the laws of the Member States
relating to equipment and protective systems intended for use in po‐
tentially explosive atmospheres.
Low voltage directive
LVD
DIRECTIVE 2014/35/EU OF THE EUROPEAN PARLIAMENT AND OF THE
COUNCIL 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.
The directives applied can be found in the EU declaration of conformity for the associated device.
Introduction
1.10 Conformity with European directives
ULTRAMAT 23
12 Equipment Manual, 04/2022, A5E37100388-012

Safety instructions 2
2.1 General
2.1.1 Security information
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.
For additional information on industrial security measures that may be implemented, please
visit
https://www.siemens.com/industrialsecurity.
Siemens’ products and solutions undergo continuous development to make them more secure.
Siemens strongly recommends that product updates are applied as soon as they are available
and that the latest product versions are used. Use of product versions that are no longer
supported, and failure to apply the latest updates may increase customer’s exposure to cyber
threats.
To stay informed about product updates, subscribe to the Siemens Industrial Security RSS Feed
under
https://www.siemens.com/cert.
WARNING
Improper use
A device in the standard version must never be used in hazardous areas.
Explosive gas mixtures (e.g. 󹪞ammable gases together with air or oxygen in a potentially
explosive ratio) must not be measured with this analyzer.
ULTRAMAT 23
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WARNING
Improper device modi󹪝cations
Danger to personnel, system and environment can result from modi󹪝cations to the device,
particularly in hazardous areas.
• Only carry out modi󹪝cations that are described in the instructions for the device. Failure to
observe this requirement cancels the manufacturer's warranty and the product approvals.
WARNING
Toxic and/or corrosive gases
When measuring toxic or corrosive gases, it could occur that sample gas accumulates in the
analyzer because of leaks in the gas path.
To prevent the danger of poisoning or damage to parts of the analyzer, the analyzer or the
system must be purged with inert gas (e.g. nitrogen). The gas displaced by purging must be
collected using appropriate equipment and disposed of environmentally-friendly via an
exhaust line.
WARNING
Risk of explosion due to improper use
A device in the standard version must never be used in hazardous areas.
Explosive gas mixtures (e.g. 󹪞ammable gases together with air or oxygen in a potentially
explosive ratio) must not be measured with this analyzer.
If the sample gas could contain 󹪞ammable components above the lower explosion limit (LEL),
we recommend that you only use analyzers with piped gas paths.
WARNING
Wetted parts unsuitable for the process medium
Danger of injury or damage to device.
Hot, toxic and aggressive process media may be released if the media is not suitable for wetted
parts of the analyzer.
• Ensure that the material of the device parts wetted by the process medium is suitable for the
medium. Read the information in the technical speci󹪝cations of the respective manual!
Safety instructions
2.1 General
ULTRAMAT 23
14 Equipment Manual, 04/2022, A5E37100388-012

WARNING
Harmful gases
Danger to personnel, system and the environment can result from introducing harmful
(corrosive, 󹪞ammable and/or poisonous) gases into the device. If this should be required for the
measuring task of the device, you must take the following measures:
• Take into account the safety measures according to the German Occupational Safety Act
(Arbeitsschutzgesetz - ArbSchG) or similar international regulations. These safety measures
must be coordinated with a local specialist. In particular, this includes measures to prevent
any potential release of gases from the internal gas path (containment system) as well as
their monitoring and disposal.
• Ensure that the discharged gas is treated according to the applicable local laws.
• When you measure gases with 󹪞ammable components at concentrations above the lower
explosion limit (LEL), we recommend that you only use piped devices (see also report BB-
EG1-KAR Gr02X from TÜV Süddeutschland).
• Purge the device or the plant with a purging gas (inert gas). The gas displaced by purging
must be collected using appropriate equipment and disposed of environmentally-friendly
via an exhaust line.
WARNING
Harmful substances in the condensate
The condensate at the sample gas cooler or condensation trap can be corrosive, depending on
the composition of the sample gas (e.g.: through SO2, NO, H2S, HCl, etc.). When you dip litmus
paper into the condensate it will turn red.
• Wear protective clothing, protective goggles and protective gloves when handling the
condensate!
• Prior to its disposal, dilute the condensate with tap water until it turns neutral and the litmus
paper does not change color. Alternatively, you can also neutralize the condensate with a
weak sodium carbonate solution (Na2CO3).
NOTICE
Manipulation of the device
Physical access to the device enables undesired manipulations of the device. As a result of this,
the device can lose its measuring properties and become unusable.
• Ensure that the device is located in a protected area to which only authorized persons have
access.
• If no settings need be carried out, lock the device.
Safety instructions
2.1 General
ULTRAMAT 23
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2.1.2 Information on industrial use
NOTICE
Use in home environment
This Class A Group 1 device according to CISPR 11 is intended for industrial use.
If used in homes, the device may cause radio interference.
NOTICE
Insu󹪟cient protection during storage
The packaging only provides limited protection against moisture and in󹪝ltration.
• Provide additional packaging as necessary.
WARNING
Incorrect disassembly
The following risks may result from incorrect disassembly:
- Injury through electric shock
- Risk through emerging media when connected to the process
- Risk of explosion in hazardous area
In order to disassemble correctly, observe the following:
• Before starting work, make sure that you have switched o󹪜 all physical variables such as
pressure, temperature, electricity etc. or that they have a harmless value.
• If the device contains hazardous media, it must be emptied prior to disassembly. Make sure
that no environmentally hazardous media are released.
• Secure the remaining connections so that no damage can result if the process is started
unintentionally.
Safety instructions
2.1 General
ULTRAMAT 23
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2.2 Analyzers in biogas plants
DANGER
Danger of poisoning
This device is designed to measure hydrogen sul󹪝de and dihydrogen sul󹪝de, H2S)!
Hydrogen sul󹪝de is highly toxic even in small concentrations! The odor threshold for hydrogen
sul󹪝de is very low at 0.02 vpm (20 vpb), but higher concentrations result in numbing of the
olfactory receptors in the nose so that the odor is no longer perceived. Persons exposed to this
gas in concentrations up to 100 vpm for several hours exhibit symptoms of poisoning such as
fatigue, headaches, lack of appetite, lack of concentration, irritation of the mucous
membranes of eyes and respiratory tract, and throat irritations.
Inhalation of H2S concentrations of 500 vpm longer than 30 minutes can cause fatal poisoning.
Concentrations above 1 000 vpm cause death within a few minutes, concentrations above
5 000 vpm cause death within a few seconds!
When using this device in plant where there may be high concentrations of H2S and you
therefore need to take following continual precautions to prevent the e󹪜ects of poisoning:
• Connect the gas outlet of the analyzer to a gas exhaust unit so that no gas can escape into
the environment!
• Before you begin maintenance on the analyzer, make sure that the H2S concentration in the
analyzer is close to 0 vpm. Before beginning work, always 󹪞ush the gas path of the analyzer
and the gas sampler with ambient air or nitrogen for a duration of about 10 minutes .
• Check for leaks in the analyzer at regular intervals!
DANGER
Danger of explosion
This device is used in biogas plants, among other places. When it is used in biogas plants, you
should expect that the sample gas will contain methane, which forms explosive mixtures with
oxygen or air in certain concentrations. These conditions are possible with certain operating
states of the plant.
2.3 Analyzers in hazardous areas
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.
Safety instructions
2.3 Analyzers in hazardous areas
ULTRAMAT 23
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Safety instructions
2.3 Analyzers in hazardous areas
ULTRAMAT 23
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Description 3
3.1 Area of application
Overview
Up to 4 gas components can be measured continuously and simultaneously with the
ULTRAMAT 23 gas analyzer. The device can be equipped with the following measurement
modules:
• IR analyzer unit for IR-active gases
• UV module for UV-active gases
• H2S sensor (electrochemical)
• O2 sensor (electrochemical)
• O2 sensor (paramagnetic)
Figure 3-1 Front view ULTRAMAT 23 (example rack unit)
Areas of application
• Optimization of small 󹪝ring systems
• Monitoring of exhaust gas concentration from 󹪝ring systems with all types of fuel (oil, gas
and coal) as well as operational measurements with thermal incineration plants
• Room air monitoring
• Monitoring of air in fruit stores, greenhouses, fermenting cellars and warehouses
• Monitoring of process control functions
• Monitoring of ship emissions
• Atmosphere monitoring during heat treatment of steel
ULTRAMAT 23
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Areas of application with hydrogen sul󹪝de sensor:
• Biogas plants
– Monitoring of fermenters for generating biogas (input and pure sides)
– Monitoring of gas-driven motors (power generation)
– Monitoring of feeding of biogas into the commercial gas network
• Sewage plants
• Drinking water treatment
Areas of application with paramagnetic oxygen sensor
• Flue gas analysis
• Inerting plants
• Room air monitoring
• Medical engineering
Further applications:
• Environmental protection
• Chemical plants
• Cement industry
• Emissions from livestock facilities
Special versions
• The ULTRAMAT 23 with 2 IR components without pump is also available with two separate
gas paths. This allows the measurement of two measuring points as used e.g. for the NOx
measurement before and after the NOx converter.
• Only IR components are available for 19" rack units with piped gas paths
• The ULTRAMAT 23 gas analyzer can be used in emission measuring systems and for process
and safety monitoring.
• For measurement of CO, CO2, NO, NO2, SO2 and O2 according to the requirements of the 13th
BImSchV (German Federal Immission Protection Regulations), 17th BImSchV, 27th BImSchV
and 44th BImSchV (for Germany) or IED and MCPD (for Europe), TA Luft, suitability-tested
versions of the ULTRAMAT 23 are available from TÜV Rheinland.
• The analyzers of the 7MB2355, 7MB2357 and 7MB2358 series are suitability-tested in
accordance with EN 15267 (emission measurements). For the SO2 component (IR and UV),
the zero point drift is internally compensated via the AUTOCAL function.
• The current certi󹪝cates and approvals can be found on the Internet at: Approvals and
certi󹪝cates (https://support.industry.siemens.com/cs/de/en/ps/17728)
• Version with faster response time:
There is no connection between the two condensation traps, so that the complete sample
gas 󹪞ow passes through the analyzer chambers (only 1/3 of the 󹪞ow in the normal version
of the analyzers), i.e. the response time is 2/3 faster. The functions of all other components
remain unchanged. Any condensate that forms cannot be removed with this device version.
Description
3.1 Area of application
ULTRAMAT 23
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