Siemens CALOMAT 6, 6 Series, CALOMAT 6F, ULTRAMAT 6, OXYMAT 6 Additional Equipment Manual

Additional Equipment Manual release 07/2002

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ULTRAMAT/OXYMAT/CALOMAT 6
Gas analyzers of category II 2 G for use in
potentially hazardous areas of zone 1

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CALOMAT 6, OXYMAT 6, ULTRAMAT 6

Gas analyzers of category II 2 G for use in
in hazardous areas of zone 1

Additional Equipment Manual

A5E00058873-02
Release 07/2002

The reproduction, transmissi

on or use of this document or its

ULTRAMAT, OXYMAT, CALOMAT, SIPAN

technology, data in inches only apply to devices for export.

Weitergabe sowie Vervielfältigung dieser Unterlage,

Verwertung und Mitteilung ihres Inhaltes nicht gestattet, soweit

ULTRAMAT, OXYMAT, CALOMAT, SIPAN

Toute communication ou reproduct

ion de ce document, toute

Tout manquement à cette règle est illicite et expose son auteur

ULTRAMAT, OXYMAT, CALOMAT, SIPAN

La divulgación y reproducción de este documento asi como el

ULTRAMAT, OXYMAT, CALOMAT, SIPAN

La trasmissione a terzi e la riproduzione di questa

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tecniche possibil

ULTRAMAT, OXYMAT, CALOMAT, SIPAN

terzi può violare i diritti di proprietà.

Siemens AG

© Siemens AG 2000

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Technical data subject to change without notice.

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Order No. A5E00058873
Printed in Germany
AG 0702 En 0.05 20 AB

English

Contents

Notes E-2

1. Description E-3

1.1 Application range E-3

1.2 External explosion protection E-3

1.2.1 Pre-purging phase E-3

1.2.2 Operating phase E-3

1.3 Internal explosion protection E-3

1.4 Further safety measures E-4

1.4.1 Analyzer versions EEx p with
"Compensation of losses resulting from leaks" E-4

1.4.2 Analyzer versions EEx p with "Continuous purging" E-4

2. Technical specifications E-5

2.1 Installation site E-5

2.2 Explosion protection E-5

2.3 Sample gas input conditions E-5

2.4 Pneumatic data of the protective gas E-6

2.5 EEx p safety device E-6

2.6 Differential pressure monitoring E-7

2.7 Accessories E-7

3. Assembly Guidelines E-8

3.1 Connection of sample gas and protective gas E-8

3.2 Assembly diagram for the versions EEx p with "Compensation of losses
resulting from leaks" E-9

3.3 Assembly diagram for the versions EEx p with "Continuous purging" E-10

3.4 Electric connections E-11

3.5 Inputs and outputs E-11

4. Commissioning E-12

4.1 Connection to the EEx p safety device E-12

4.2 Pressure correction E-12

4.3 Key switch E-12

5. Additional equipment E-13

6. Maintenance E-13

6.1 Leak testing of containment system (sample gas path) E-13

6.1.1 Recommended test setup for CALOMAT 6F and OXYMAT 6F E-13

6.1.2 Recommended test setup for ULTRAMAT 6F E-14

6.1.3 Carrying out the leak test E-14

6.2 EEx p safety device E-15

6.3 Analyzers and additional equipment E-15

6.4 Spare parts E-15

Appendix A-1

English

Notes

This manual only deals with the components of the CALOMAT 6F (C 6F), OXYMAT 6F (O 6F) and
ULTRAMAT 6F (U 6F) gas analyzers with respect to explosion protection in connection with an EEx p
safety device. In addition to this manual, the manuals of all devices necessary for operating the
system must be observed.

The associated "Special conditions" described in the EC-type examination certificates

PTB 00 ATEX 2022 X and TÜV 01 ATEX 1708 X

enclosed in the Appendix must be observed without fail.

These describe

- the application ranges,

- the minimum requirements for an EEx p monitoring device and

- other precautionary measures which are important for operation.

The technical specifications in this manual may be different to those in the associated manuals for the
analyzers and additional equipment under some circumstances. The technical specifications listed in
this manual are valid in such cases.

To achieve perfect, reliable operation of the analyzers and additional equipment, they may only be
used in the manner described by the manufacturers. In addition, perfect and safe use of these
products is conditional upon proper transport, storage and installation as well as careful operation and
maintenance.

This manual has been written for technically qualified personnel. Familiarity with and technically
correct application of the safety instructions and warnings described in this manual are prerequisites
for safe installation and commissioning. Only qualified personnel have the necessary professional
knowledge to be able to interpret the general safety information and warnings correctly in individual
cases and to put them into practice.

This manual is an essential part of the scope of delivery. For reasons of clarity it does not contain all
details on all versions of the described products and cannot cover every situation which could
conceivably arise during installation, operation, maintenance and use in systems. If you require further
information, or if problems arise which are not dealt with in sufficient detail in this document, please
request the desired information from your local or responsible Siemens branch.

E-2 Additional Equipment Manual EEx p

Order No.:

A5E 000 58873-02

English

1. Description

1.1 Application range

The C 6F, O 6F and U 6F analyzers are used to measure individual components in gas mixtures. In
conjunction with a certified EEx p safety device guaranteeing the pressurized enclosure, these
analyzers can be used in hazardous areas of zone 1. The EEx p safety device guarantees defined
pre-purging in the housing, and also the required pressurized enclosure during operation.
Two alternatives are possible for the pressurized enclosure EEx p, and can be considered as
equivalent:

- Pressurized enclosure EEx p with "Compensation of losses resulting from leaks" and

- Pressurized enclosure EEx p with "Continuous purging".

The analyzer version can be recognized by the bold printed digit in the Order No.:

Pressurized enclosure EEx p

CALOMAT 6F 7MB251x–xxx0x–xAEx

OXYMAT 6F 7MB201x–xxxxx–2or3xxx 7MB201x–xxxxx–6or7xxx

ULTRAMAT 6F 7MB211x–xxxxx–2or3xxx 7MB211x–xxxxx–6or7xxx

With "Compensation of losses

resulting from leaks"

With "Continuous purging"

7MB251x–xxx0x–xAFx

1.2 External explosion protection

The "External explosion protection" serves to prevent penetration of explosive gas mixtures (gas
damp) into the housing or ignition on the surface. For this reason, the analyzer is purged with
protective gas, and the control panel operated via an intrinsically-safe isolating component.

1.2.1 Pre-purging phase

The pre-purging phase serves to displace any combustible gases present prior to switching on the
analyzer. During this time (5 min), the housing is purged with 5 times its own volume.

1.2.2 Operating phase

The pre-purging phase is followed by the operating phase:

- In EEx p mode with "Compensation of losses resulting from leaks", only that volume of

protective gas required to hold an overpressure of ≥≥≥≥ 50 Pa compared to atmospheric and the sample
gas is added.

- In EEx p mode with "Continuous purging", the protective gas flows through the housing at

≥≥≥≥ 1 l/min. An overpressure of ≥≥≥≥ 50 Pa compared to atmospheric is built up at the same time.

Either inert gas (e.g. nitrogen) or air must be used as the protective gas depending on the sample gas
composition. Dissipation of the protective gas into the Ex zone is only permissible with spark
protection and a particle barrier.

1.3 Internal explosion protection

Internal explosion protection refers to the sample gas path (containment system CS) in the analyzer
and to the ignition protection of the process gas. A differentiation must be made between the following
cases:

- Non-combustible sample gases and gas mixtures below the LEL: flame inhibitors can be

omitted. However, it must be guaranteed that the sample gas in the CS always remains below the
lower explosive limit!

- Sample gases which are seldom combustible and only for a brief period: flame inhibitors can be

omitted.

- Occasionally explosive sample gases: these may only be connected to the C 6F and O 6F gas

analyzers if both the sample gas inlet and outlet are provided with a flame inhibitor. The U 6F
analyzer may also be used without flame inhibitors.
The flame inhibitors must meet the safety requirements for the combustible medium.

- Frequently or permanently explosive gas mixtures: these must not be connected!

- Sample gases above the upper explosive limit: these must be assessed individually according to

separate certification for use of an inert gas as the protective gas.

Additional Equipment Manual EEx p E-3
Order No.:

A5E 000 58873-02