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産業機器 Siemens ULTRAMAT 6FのPDF 追加装備マニュアルをオンラインで閲覧またはダウンロードできます。Siemens ULTRAMAT 6F 20 ページ。 Gas analyzer for the determination of ir-absorbing gases
Siemens ULTRAMAT 6F にも：取扱説明書 (49 ページ), 安全マニュアル (24 ページ)

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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

OXYMAT 6F

ULTRAMAT 6F

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

Order No.:

A5E 000

58873-02

With "Compensation of losses

resulting from leaks"

7MB251x–xxx0x–xAEx

7MB201x–xxxxx–2or3xxx

7MB211x–xxxxx–2or3xxx

With "Continuous purging"

7MB251x–xxx0x–xAFx

7MB201x–xxxxx–6or7xxx

7MB211x–xxxxx–6or7xxx

English

E-3