Siemens ULTRAMAT 23 User manual

A5E37100388-003 GN: 30760_ULTRAMAT_23
www.siemens.com/automation
Subject to change without prior notice
A5E37100388-003
© Siemens AG 2016
Siemens AG
Process Industries and Drives
Process Automation
Analytical Products
76181 Karlsruhe
Germany
Continuous gas analysis
Gas analyzer for measuring IR-absorbing gases,
oxygen and hydrogen sulfide
ULTRAMAT 23
Edition 03/2016
ULTRAMAT 23
Manual •03/2016
Manual
AE37100388
A5E37100388
Get more information:
www.siemens.com/processanalytics
Answers for industry.

ULTRAMAT 23
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Continuous gas analysis
Gas analyzer for measuring IR-
absorbing gases, oxygen, and
hydrogen sulfide
ULTRAMAT 23
Manual
7MB2335, 7MB2337, 7MB2338
7MB2355, 7MB2357, 7MB2358
3/2016
A5E37100388
-003
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

Siemens AG
Division Process Industries and Drives
Postfach 48 48
90026 NÜRNBERG
GERMANY
Document order number: A5E37100388
Ⓟ
07/2016 Subject to change
Copyright © Siemens AG 2016.
All rights reserved
Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to
property damage.
Qualified Personnel
The product/system described in this documentation may be operated only by
personnel qualified
for the specific
task in accordance with the relevant documentation, in particular its warning notices and safety instructions.
Qualified personnel are those who, based on their training and experience, are capable of identifying risks and
avoiding potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended
or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication
may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.

ULTRAMAT 23
Manual, 3/2016, A5E37100388-003 5
Table of contents
1 Introduction........................................................................................................................................... 11
1.1 Information for our customers.................................................................................................11
1.2 Product versions .....................................................................................................................11
1.3 General information ................................................................................................................12
1.4 Special information and warnings...........................................................................................12
1.5 Proper use ..............................................................................................................................12
1.6 Qualified Personnel.................................................................................................................13
1.7 Warranty conditions ................................................................................................................14
1.8 Delivery information ................................................................................................................14
1.9 Standards and regulations......................................................................................................14
1.10 Conformity with European directives ......................................................................................14
2 Safety instructions................................................................................................................................. 15
2.1 Analyzers in biogas plants ......................................................................................................17
2.2 Analyzers in hazardous areas ................................................................................................17
3 Description............................................................................................................................................ 19
3.1 Area of application ..................................................................................................................19
3.2 Design.....................................................................................................................................22
3.3 Function ..................................................................................................................................26
3.4 Technical specifications..........................................................................................................31
3.4.1 General technical data............................................................................................................31
3.4.2 Parts in gas path wetted by sample gas .................................................................................34
3.4.3 Infrared detector......................................................................................................................35
3.4.4 Electrochemical oxygen sensor ..............................................................................................38
3.4.5 Paramagnetic oxygen sensor .................................................................................................39
3.4.6 Hydrogen sulfide sensor .........................................................................................................42
3.5 Wiring diagrams ......................................................................................................................43
3.5.1 Gas flow diagram ....................................................................................................................43
3.5.2 Gas connections .....................................................................................................................51
3.5.3 Connection diagrams..............................................................................................................52
3.5.4 Pin assignments......................................................................................................................54
3.6 Dimensional drawings.............................................................................................................56
3.7 Communication .......................................................................................................................57
3.7.1 PROFIBUS DP/PA..................................................................................................................57
3.7.2 General information ................................................................................................................59
3.7.3 ELAN interface........................................................................................................................60
3.7.4 SIPROM GA............................................................................................................................61

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6Manual, 3/2016, A5E37100388-003
3.7.4.1 SIPROM GA functions ........................................................................................................... 61
3.7.4.2 Upgrading options.................................................................................................................. 62
4 installation............................................................................................................................................. 63
5 Connecting ........................................................................................................................................... 67
5.1 Safety instructions.................................................................................................................. 67
5.1.1 Condensation in the device.................................................................................................... 67
5.1.2 Laws and directives ............................................................................................................... 67
5.1.3 Operation in hazardous areas................................................................................................ 67
5.1.4 Electrical circuit breaker in accordance with IEC 60947-1 .................................................... 68
5.1.5 Dangerous contact voltage .................................................................................................... 68
5.1.6 Missing PE/ground connection .............................................................................................. 68
5.1.7 Power supply cable for bench-top unit................................................................................... 69
5.1.8 Analyzers in hazardous areas................................................................................................ 69
5.1.9 Analyzers in biogas plants ..................................................................................................... 70
5.1.10 Wetted parts unsuitable for the process medium .................................................................. 70
5.1.11 Variant with specially cleaned gas path (Cleaned for O2)..................................................... 71
5.2 Gas connections and internal gas path ................................................................................. 71
5.2.1 Gas connections .................................................................................................................... 71
5.2.2 Gas preparation ..................................................................................................................... 72
5.3 Electrical connection .............................................................................................................. 73
5.3.1 Connection of the signal lines................................................................................................ 73
5.3.2 Power connection................................................................................................................... 74
6 Commissioning ..................................................................................................................................... 77
6.1 General information ............................................................................................................... 77
6.2 Safety instructions.................................................................................................................. 77
6.2.1 Dangerous contact voltage .................................................................................................... 77
6.2.2 Loss of degree of protection .................................................................................................. 78
6.2.3 Commissioning and operation with error message................................................................ 78
6.2.4 For use in hazardous areas ................................................................................................... 78
6.2.4.1 Analyzers in hazardous areas................................................................................................ 78
6.2.5 Use in biogas plants............................................................................................................... 80
6.2.5.1 Safety information .................................................................................................................. 80
6.3 Preparation for commissioning .............................................................................................. 81
6.3.1 Leaks in the gas paths ........................................................................................................... 81
6.3.2 Gas preparation ..................................................................................................................... 81
6.3.3 Device interfaces.................................................................................................................... 81
6.4 Commissioning....................................................................................................................... 82
6.4.1 Commissioning....................................................................................................................... 82
6.4.2 AUTOCAL .............................................................................................................................. 82
6.4.3 Initial calibration ..................................................................................................................... 83
6.5 System setup with several analyzers in parallel .................................................................... 84
7 Operation.............................................................................................................................................. 89
7.1 General information ............................................................................................................... 89
7.2 User prompting....................................................................................................................... 90
7.3 Display and control panel....................................................................................................... 91

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Manual, 3/2016, A5E37100388-003 7
7.3.1 Display and operator panel.....................................................................................................91
7.3.2 User interface..........................................................................................................................93
7.3.3 Key assignments.....................................................................................................................94
7.4 Operating modes ....................................................................................................................94
7.4.1 Warm-up phase ......................................................................................................................95
7.4.2 Measuring mode .....................................................................................................................96
7.4.3 Input mode ..............................................................................................................................96
7.4.3.1 Code levels .............................................................................................................................97
7.4.3.2 Key operations step by step ...................................................................................................98
7.4.3.3 The ESC key.........................................................................................................................101
7.4.3.4 The CAL key .........................................................................................................................101
7.4.3.5 The PUMP key......................................................................................................................102
8 Functions............................................................................................................................................ 103
8.1 Diagnostics ...........................................................................................................................103
8.1.1 Diagnostics: Status ...............................................................................................................104
8.1.1.1 Analyzer status: Status: Logbook/faults................................................................................104
8.1.1.2 Analyzer status: Status: Maintenance request .....................................................................105
8.1.1.3 Analyzer status: Status: AUTOCAL deviation ......................................................................105
8.1.1.4 Analyzer status: Status: O2 sensor status............................................................................106
8.1.1.5 Analyzer status: Status: H2S sensor status..........................................................................106
8.1.2 Diagnostics: Diagnostics values ...........................................................................................107
8.1.2.1 Analyzer status: Diagnostics values: IR................................................................................107
8.1.2.2 Analyzer status: Diagnostics values: (Electrochemical) O2 sensor .....................................108
8.1.2.3 Analyzer status: Diagnostics values: (Paramagnetic) O2 sensor.........................................108
8.1.2.4 Analyzer status: Diagnostics values: H2S sensor ................................................................109
8.1.2.5 Diagnostics: Diagnostics values: Pressure sensor...............................................................109
8.1.2.6 Analyzer status: Diagnostics values: Other diagnostics values ...........................................109
8.1.3 Analyzer status: Factory settings hardware..........................................................................110
8.1.4 Analyzer status: Factory settings software ...........................................................................110
8.2 Calibration.............................................................................................................................111
8.2.1 Calibration.............................................................................................................................111
8.2.2 Calibration: Infrared measuring range ..................................................................................112
8.2.2.1 Calibration: Infrared measuring range: Set span gas values................................................113
8.2.2.2 Calibration: Infrared measuring range: Start with Range MR 1/2.........................................113
8.2.3 Calibration: Electrochemical oxygen measuring range ........................................................114
8.2.3.1 Calibration: O2 measuring range: Sensor inst. date.............................................................114
8.2.3.2 Calibration: O2 measuring range: Calibrating the O2 zero point..........................................115
8.2.3.3 Calibration: O2 measuring range: Calibrate measuring range .............................................115
8.2.4 Calibration: Paramagnetic oxygen sensor ............................................................................
116
8.2.4.1 Calibration: O2 paramagnetic: Calibrating the zero point.....................................................117
8.2.4.2 Calibration: O2 paramagnetic: Calibrating the measuring range .........................................117
8.2.5 Calibration: H2S sensor........................................................................................................118
8.2.5.1 Calibration: H2S sensor: Defining the installation ................................................................119
8.2.5.2 Calibration: H2S sensor: Calibrating the zero point..............................................................119
8.2.5.3 Calibration: H2S sensor: Calibrating the measuring range ..................................................119
8.2.5.4 Calibration: H2S sensor: Enter TC parameters ....................................................................120
8.2.6 Calibration: Pressure sensor ................................................................................................121
8.2.7 Calibration: AUTOCAL/drift values .......................................................................................122
8.2.7.1 Calibration: AUTOCAL/drift values: Drift values ...................................................................122
8.2.7.2 Calibration: AUTOCAL/drift values: Cycle time ....................................................................123

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ULTRAMAT 23
8Manual, 3/2016, A5E37100388-003
8.2.7.3 Calibration: AUTOCAL/drift values: Purge time................................................................... 123
8.3 Parameter ............................................................................................................................ 124
8.3.1 Parameter: Measuring ranges ............................................................................................. 125
8.3.1.1 Parameters: Measuring ranges: Switch ranges................................................................... 125
8.3.1.2 Parameters: Measuring ranges: Setting measuring ranges ................................................ 126
8.3.1.3 Parameters: Measuring ranges: Hysteresis......................................................................... 127
8.3.2 Parameters: Limits ............................................................................................................... 128
8.3.3 Parameters: Limits: H2S sensor protection ......................................................................... 129
8.3.4 Parameters: Time constants ................................................................................................ 129
8.3.5 Parameter: Pump/LCD contrast........................................................................................... 130
8.3.5.1 Parameters: Pump/LCD contrast: Pump ............................................................................. 130
8.3.5.2 Parameters: Pump/LCD contrast: LCD contrast.................................................................. 131
8.4 Configuration........................................................................................................................ 132
8.4.1 Configuration: Inputs/outputs/pump..................................................................................... 134
8.4.1.1 Configuration: Inputs/outputs/pump: Analog outputs........................................................... 134
8.4.1.2 Configuration: Inputs/outputs/pump: Assign relays ............................................................. 138
8.4.1.3 Configuration: Inputs/outputs/pump: Binary/sync inputs ..................................................... 141
8.4.1.4 Configuration: Inputs/outputs/pump: Pump at CAL/MEAS .................................................. 142
8.4.2 Configuration: Special functions .......................................................................................... 142
8.4.2.1 Configuration: Special functions: Changing the codes/language ........................................ 143
8.4.2.2 Configuration: Special functions: AUTOCAL deviation........................................................ 144
8.4.2.3 Configuration: Special functions: ELAN/PROFIBUS/external interference ......................... 144
8.4.2.4 Configuration: Special functions: Factory data/reset/units .................................................. 149
8.4.3 Configuration: Device test.................................................................................................... 151
8.4.3.1 Configuration: Device test: RAM monitor............................................................................. 151
8.4.3.2 Configuration: Device test: Display/keys/flow ...................................................................... 152
8.4.3.3 Configuration: Device test: Inputs/outputs ........................................................................... 152
8.4.3.4 Configuration: Device test: Chopper/IR source ................................................................... 154
8.4.4 Configuration: Factory configuration .................................................................................... 155
8.5 Automatically executed functions......................................................................................... 155
8.5.1 Probe protection and purging function................................................................................. 155
8.5.2 Probe protection function ..................................................................................................... 156
8.5.3 Probe purging function......................................................................................................... 158
9 Application note ...................................................................................................................................161
9.1 H2S sensor with 'small' measuring range............................................................................ 161
10 Service and maintenance.....................................................................................................................165
10.1 Safety instructions................................................................................................................ 165
10.1.1 General safety instructions .................................................................................................. 165
10.1.2 Safety information for analyzers used in hazardous areas.................................................. 166
10.2 Maintenance work................................................................................................................ 167
10.2.1 Cleaning the device ............................................................................................................. 167
10.2.2 Maintenance of the gas path................................................................................................ 168
10.2.3 Replacing spare parts .......................................................................................................... 168
10.2.4 Replacing fuses.................................................................................................................... 168
10.2.5 Replacing the fine safety filter.............................................................................................. 169
10.2.6 Maintenance work on the bench-top unit............................................................................. 170
10.2.6.1 Emptying the condensation trap .......................................................................................... 170
10.2.6.2 Replacing the coarse filter ................................................................................................... 170

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Manual, 3/2016, A5E37100388-003 9
10.2.7 Replacing the electrochemical oxygen sensor .....................................................................171
10.2.8 Replacing the hydrogen sulfide sensor.................................................................................172
10.2.9 Replacing the paramagnetic oxygen sensor ........................................................................176
11 Error and system messages................................................................................................................ 177
11.1 Maintenance requests...........................................................................................................177
11.2 Faults ....................................................................................................................................178
12 Taking out of operation and disposal ................................................................................................... 181
12.1 Repair or changing of location ..............................................................................................181
12.2 Scrapping the analyzer .........................................................................................................182
13 Spare parts/accessories...................................................................................................................... 185
13.1 Information for ordering spare parts .....................................................................................185
13.2 Gas path ...............................................................................................................................187
13.3 Electronics ............................................................................................................................190
13.4 Pump.....................................................................................................................................192
13.5 IR analyzer units ...................................................................................................................193
13.5.1 Overview ...............................................................................................................................193
13.5.2 Analyzer unit 7MB2335-, 7MB2355-.....................................................................................197
13.5.3 Analyzer unit 7MB2337-, 7MB2357-.....................................................................................201
13.5.4 Analyzer unit 1 7MB2338-, 7MB2358-..................................................................................205
13.5.4.1 .AA..-, -.AK..-, -.AB..-, -.AC..- for CO/NO ..............................................................................205
13.5.4.2 .AD..- for CO/NO...................................................................................................................207
13.5.4.3 .DC..- for CO2/NO.................................................................................................................209
13.5.4.4 .BA.., .BD.., .CB..- for CO/CO2 and CO2/CH4 .....................................................................211
13.5.4.5 .BB.., .CA..- for CO/CO2 and CO2/CH4 ...............................................................................213
13.5.4.6 .BJ.., .BK.., .BL..- for CO2/CO ..............................................................................................216
13.5.5 Analyzer unit 7MB2338-, 7MB2358- third component..........................................................219
13.6 Sensors.................................................................................................................................221
13.7 Comparison of spare part Order Nos. U23 and U23 analyzer version -B06 'Cleaned for
O2'.........................................................................................................................................222
A Appendix............................................................................................................................................. 225
A.1 Service and support ..............................................................................................................225
A.2 Approvals ..............................................................................................................................225
A.3 Pressure conversion table ....................................................................................................225
A.4 Returned delivery..................................................................................................................226
A.4.1 Return address .....................................................................................................................227
A.4.2 Error Description ...................................................................................................................227
A.4.3 Decontamination declaration ................................................................................................228
B ESD directives .................................................................................................................................... 231
B.1 ESD guidelines .....................................................................................................................231
C List of abbreviations ............................................................................................................................ 233
C.1 List of abbreviations..............................................................................................................233

Table of contents
ULTRAMAT 23
10 Manual, 3/2016, A5E37100388-003
Index ...................................................................................................................................................239

ULTRAMAT 23
Manual, 3/2016, A5E37100388-003 11
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 efficiently,
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 different versions. The data on the label, among others, indicates
which device version you have.
1
Data matrix code
2
CE conformity symbol
3
Name and address of manufacturer
4
Designation of origin
5
Measuring range(s)
6
Serial number
7
Order No. (MLFB number) of the device
8
Device name
Figure 1-1 ULTRAMAT 23 label (example)

Introduction
1.3 General information
ULTRAMAT 23
12 Manual, 3/2016, A5E37100388-003
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 of this product, 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.
This manual contains the information required for the intended use of the described product.
It is addressed to technically qualified 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 qualified
personnel have the required professional knowledge for correctly interpreting the generally
valid safety notes and warnings in this manual in each specific case and to act accordingly.
This manual is an inherent part of the scope of delivery, despite the fact that it can be
ordered separately for logistic reasons.
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 office.
Note
In particular, before using the device for new research and development applications, we
recommend that you first 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

Introduction
1.6 Qualified Personnel
ULTRAMAT 23
Manual, 3/2016, A5E37100388-003 13
described for the configuration, 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.
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 qualified 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
Make sure that the environmental conditions listed in the
technical specifications (Page 31)
are observed.
•
During operation
•
In the event of maintenance
Note
Environmental conditions for bench-top unit in accordance with IEC 61010-1-2010
In accordance with IEC 61010
-1-2010, the bench-top unit may only be used indoors.
1.6
Qualified Personnel
Qualified personnel are people who are familiar with the installation, mounting,
commissioning, and operation of the product. These people have the following qualifications:
●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 maintenance and use of appropriate safety equipment
according to the safety regulations.

Introduction
1.7 Warranty conditions
ULTRAMAT 23
14 Manual, 3/2016, A5E37100388-003
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 defined
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 specification
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:
Electromagnetic
compatibility EMC
DIRECTIVE 2014/30/EU OF THE EUROPEAN PARLIAMENT
AND OF THE COUNCIL on the harm
onisation of the laws of the
Member States relating to electromagnetic compatibility.
Low voltage d
i-
rective LVD
DIRECTIVE 2014/35/EU OF THE EUROPEAN PARLIAMENT
AND OF THE COUNCIL on the harmonisation of the laws of
Member States relating to the making a
vailable on the market of
electrical equipment designed for use within certain voltage limits.
ATEX
DIRECTIVE 2014/34/EU OF THE EUROPEAN PARLIAMENT
AND OF THE COUNCIL on the harmonisation of the laws of the
Member States relating to equipment and protect
ive systems in-
tended for use in potentially explosive atmospheres.
The directives applied can be found in the EU declaration of conformity for the associated
device.

ULTRAMAT 23
Manual, 3/2016, A5E37100388-003 15
Safety instructions
2
Security information
Siemens provides products and solutions with industrial security functions that support the
secure operation of plants, solutions, machines, equipment and/or networks. They are
important components in a holistic industrial security concept. The products and solutions
from Siemens undergo continuous development with this factor in mind. Siemens strongly
recommends that you regularly check for product updates.
For the safe operation of products and solutions from Siemens, it is necessary to take
suitable protective measures (e.g. cell protection concept) and to integrate each component
into an overall IT security concept which corresponds to state-of-the-art IT technology. Third-
party products that may be in use should also be considered. For more information about
industrial security, visit http://www.siemens.com/industrialsecurity
(http://www.siemens.com/industrialsecurity).
To stay informed about product updates as they occur, sign up for a product-specific
newsletter. For further information, see
http://support.automation.siemens.com (http://support.automation.siemens.com).
WARNING
Improper use
A device in the standard version must never be used in hazardous areas.
Explosive gas mixtures (e.g. flammable gases together with air or oxygen in a potentially
explosive ratio) must not be measured with this analyzer.
WARNING
Improper device modifications
Danger to personnel, system and environment can result from modifications to the device,
particularly in hazardous areas.
•Only carry out modifications that are described in the instructions for the device. Failure
to observe this requirement cancels the manufacturer's warranty and the product
approvals.

Safety instructions
ULTRAMAT 23
16 Manual, 3/2016, A5E37100388-003
Note
Manipulation on the device
The physical access to the device allows illegal manipulations on the device.
•
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.
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.

Safety instructions
2.1 Analyzers in biogas plants
ULTRAMAT 23
Manual, 3/2016, A5E37100388-003 17
2.1
Analyzers in biogas plants
DANGER
Danger of poisoning
This device is designed to measure hydrogen sulfide and dihydrogen sulfide, H2S)!
Hydrogen sulfide is highly toxic even in small concentrations! The odor threshold for
hydrogen sulfide 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 effects 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 flush 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.
2.2
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
2.2 Analyzers in hazardous areas
ULTRAMAT 23
18 Manual, 3/2016, A5E37100388-003

ULTRAMAT 23
Manual, 3/2016, A5E37100388-003 19
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 analyzer has an infrared detector for infrared-sensitive
gases such as CO, N2O or CH4, and can be optionally fitted with up to two further
electrochemical sensors for O2and H2S as well as a paramagnetic O2sensor. The following
combinations are thus possible:
Table 3- 1 Possible combinations of ULTRAMAT 23
Electrochemical O2
sensor
Paramagnetic O2sen-
sor
H2S sensor
1 IR component +
1 IR component +
x
--
--
x
x
--
2 IR components +
2 IR components +
x
--
--
x
x
--
3 IR components +
3 IR components +
x
--
--
x
--
--
4 IR components +
--
--
--
Legend:
Use of sensor is possible: x
Use of sensor is not possible: --
These combinations are available for a 19" rack unit with hosed gas paths. The following
deviations apply to other analyzer versions:
●Only IR components are available for 19" rack units with piped gas paths
●H2S sensors and O2sensors are available for bench-top units

Description
3.1 Area of application
ULTRAMAT 23
20 Manual, 3/2016, A5E37100388-003
Figure 3-1 Front view of ULTRAMAT 23 for measurement of CO, NO, and O2(example of rack unit)
Areas of application
●Optimization of small firing systems
●Monitoring of exhaust gas concentration from firing 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
●Atmosphere monitoring during heat treatment of steel
Areas of application with hydrogen sulfide 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