Siemens ULTRAMAT 6 User guide

A5E00729183D-02 GN: 30280_ULTRAMAT_OXYMAT6
Manual Edition 08/2006
Siemens Aktiengesellschaft
Automation and Drives
Process Instrumentation and Analytics
76181 KARLSRUHE
GERMANY
www.siemens.com/processanalytics
ULTRAMAT 6
Gas Analyzer For The Determination
Of IR-Absorbing Gases
SIL Safety Manual
Supplement to ULTRAMAT 6 and OXYMAT 6 Manual
g y
gas analysis
A5E00729183-02
@1PA5E00729183@
A5E00729183

Supplement to instruction manual
ULTRAMAT 6 and OXYMAT 6
ULTRAMAT 6F
7MB2111, 7MB2117, 7MB2112, 7MB2118
ULTRAMAT 6E
7MB2121, 7MB2127, 7MB2123, 7MB2128, 7MB2124, 7MB2126
ULTRAMAT/OXYMAT 6E
7MB2023, 7MB2028, 7MB2024, 7MB2026
Ordering Number: A5E00729183
08/2006
ULTRAMAT 6
Gas Analyzer for the
Determination of IR-Absorbing
Gases
SIL Safet
y
Manual

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Safety Guidelines
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
with a safety alert symbol, indicates that minor personal injury can result if proper precautions are not taken.
Caution
without a safety alert symbol, indicates that property damage can result if proper precautions are not taken.
Notice
indicates that an unintended result or situation can occur if the corresponding information is not taken into
account.
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 in-
clude a warning relating to property damage.
Qualified Personnel
The device/system may only be set up and used in conjunction with this documentation. Commis-
sioning and operation of a device/system may only be performed by qualified personnel. Within the
context of the safety notes in this documentation qualified persons are defined as persons who are
authorized to commission, ground and label devices, systems and circuits in accordance with es-
tablished safety practices and standards.
Prescribed Usage
Note the following:
Warning
This device may only be used for the applications described in the catalog or the technical description and
only in connection with devices or components from other manufacturers which have been approved or
recommended by Siemens. Correct, reliable operation of the product requires proper transport, storage,
positioning and assembly as well as careful operation and maintenance.
Trademarks
All names identified by ® are registered trademarks of the Siemens AG. The remaining trademarks
in this publication may be trademarks whose use by third parties for their own purposes could vio-
late the rights of the owner.
Disclaimer of liability
While we have verified the contents of this manual for agreement with the hardware and software
described, variations remain possible. Thus we cannot guarantee full agreement. The contents of
this manual are regularly reviewed and corrections are included in subsequent editions. We wel-
come all suggestions for improvement.
Copyright © SIEMENS AG 2005
Subject to change without further notice

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Table of contents
Introduction ..................................................................................................................4
1.1 General ................................................................................................................. 4
1.2 Purpose of this document....................................................................................... 4
1.3 Required documentation ........................................................................................ 4
1.4 Change history....................................................................................................... 5
1.5 Further information ............................................................................................... 5
General Safety Instructions ..........................................................................................6
2.1 Safety-instrumented system ................................................................................... 6
2.2 Safety Integrity Level (SIL) ...................................................................................... 8
Device-specific safety instructions ...............................................................................9
3.1 Applications........................................................................................................... 9
3.2 Safety function ...................................................................................................... 9
3.3 Settings............................................................................................................... 10
3.4 Behavior in case of faults...................................................................................... 11
3.5 Maintenance / Checking ....................................................................................... 11
3.6 Safety characteristics............................................................................................ 13
Appendix .....................................................................................................................15
A.1 SIL Declaration of Conformity ..........................................................................15
A.2 exida Test Report (extract)...............................................................................16
List of Abbreviations/Acronyms ..................................................................................18
B.1 Abbreviations ...................................................................................................18
Glossary.......................................................................................................................19

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1
Introduction
1.1 General
There are two types of analyzers: Stand alone ULTRAMAT 6 analyzers and
units with two analyzers: OXYMAT 6 and ULTRAMAT 6. The synonym
ULTRAMAT 6 is used for both types of devices.
The following table lists all available types:
Analyzer name Design Standard
analyzer
Special
analyzer
ULTRAMAT 6F 1 channel (1 x IR) 7MB2111 7MB2117
ULTRAMAT 6F 2 channels (2 x IR) 7MB2112 7MB2118
ULTRAMAT 6E 1 channel (1 x IR) 7MB2121 7MB2127
ULTRAMAT 6E 2 channels (2 x IR) 7MB2123 7MB2128
ULTRAMAT 6E 1 channel (2 x IR) or
2 channels (3 x IR)
7MB2124 7MB2126
ULTRAMAT/
OXYMAT 6E
2 channels (1 O2, 1 IR) 7MB2023 7MB2028
ULTRAMAT/
OXYMAT 6E
2 channels (1 O2, 1 IR) 7MB2024 7MB2026
1.2 Purpose of this document
This document contains information and safety instructions that you will
require when using the ULTRAMAT 6 in safety-instrumented systems.
It is aimed at system planners, constructors, service and maintenance
engineers and personnel who will commission the device.
1.3 Required documentation
This document deals with the ULTRAMAT 6 gas analyzer exclusively as part of
a safety function. This document only applies in conjunction with the
following documentation:
No. Name Order No.
/1/ INSTRUCTION MANUAL
ULTRAMAT 6E/F, OXYMAT 6E/F
C79000-G5200-C143 (German)
C79000-G5276-C143 (English)
C79000-G5278-C143 (Spain)
C79000-G5272-C143 (Italian)
C79000-G5277-C143 (French)

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1.4 Change history
Currently released versions of this documentation:
Edition Comment
10/2005 First edition (A5E00695577-01)
08/2006 Second edition: Declaration of conformity updated
1.5 Further information
Information
The contents of these instructions shall not become part of or modify any
prior or existing agreement, commitment or legal relationship. All obligations
on the part of Siemens AG are contained in the respective sales contract
which also contains the complete and solely applicable warranty conditions.
Any statements contained herein do not create new warranties or modify the
existing warranty.
The content reflects the technical status at the time of printing. We reserve
the right to make technical changes in the course of further development.
References
If there are references to further information on an aspect described here,
these will always be found at the end of a chapter under “See also”.

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2
General Safety Instructions
2.1 Safety-instrumented system
Definition: Safety-instrumented system
A safety instrumented system executes the safety functions that are required
to achieve or maintain a safe status in a system. It consists of a sensor, logic
unit/ control system and final controlling element.
Example:
A safety instrumented system is made up of an analyzer (for example CO
concentration), a PLC and a control valve (Figure 2-1).
Definition: Safety function
Defined function executed by a safety instrumented system with the
objective of achieving or maintaining a safe system taking into account a
defined dangerous occurrence.
Example:
CO concentration
Definition: Dangerous failure
Failure with the potential to bring the safety instrumented system into a
dangerous or non-functional status.
Description
The analyzer logic unit/control system is a final controlling element combine
to form a safety-instrumented system, which executes a safety function.
Note This document deals with the ULTRAMAT 6 exclusively as part of a safety function.

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Control System
Figure 2-1 Example of a safety-instrumented system
Function
The measuring principle of the ULTRAMAT 6 gas analyzer operates on the
specific absorption of molecules in the middle infrared range(2 – 10 µm) and
is used to measure the concentration of ir active gases.
Special characteristics
-Four freely-programmable measuring ranges per component, also with
suppressed zero
- All measuring ranges are inear!
- The isolated analog output is set to 4 to 20 mA (NAMUR)
For safety instrumented systems the relay output is used for diagnostics only.

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2.2 Safety Integrity Level (SIL)
Definition: SIL
The international standard IEC 61508 defines four discrete Safety Integrity
Levels (SIL) from SIL 1 to SIL 4. Each level corresponds to the probability
range for the failure in a safety function. The higher the SIL of the safety-
instrumented system, the higher the probability that the required safety
function will work.
The achievable SIL is determined by the following safety characteristics:
•Average probability of dangerous failure of a safety function in case
of demand (PFDAVG)
•Hardware fault tolerance (HFT)
•Safe failure fraction (SFF)
Description
The following table shows the dependency of the SIL on the average
probability of dangerous failures of a safety function of the entire safety-
instrumented system (PFDAVG). The table deals with “Low demand mode”,
i.e. the safety function is required a maximum of once per year on average.
SIL PFDAVG
4 ≥10-5 … < 10-4
3 ≥10-4 … < 10-3
2 ≥10-3 … < 10-2
1 ≥10-2 … < 10-1
Table 2-1 Safety Integrity Level
The “average probability of dangerous failures of the entire safety
instrumented system” (PFDAVG) is normally spilt between the three
subsystems in the following figure.
Figure 2-2 PFD distribution
The following table shows the achievable Safety Integrity Level (SIL) for
the entire safety-instrumented system for type B systems depending on
the proportion of safe failures (SFF) and the hardware fault tolerance
(HFT). Type B systems include sensors and positioners actuators with
complex components, e.g. microprocessors (see also IEC 61508, Section
2).
012
<60% Not allowed SIL1 SIL2
60 to 90% SIL1 SIL2 SIL3
90 to 99% SIL2 SIL3 SIL4
>99% SIL3 SIL4 SIL4
HFT
SFF
Sensor
e.g. Gas
Analyzer
Control
system or
logic unit
e.g. PLC
Final control-
ling element
e.g. Valve