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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
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English

Commissioning

Commissioning can only be performed properly when the person doing the commissioning is familiar

with the contents of the manuals and operating instructions provided. The warnings in the individual

manuals must be observed in particular.

4.1

Connection to the EEx p safety device

The analyzer must be connected to the EEx p safety device as shown in the assembly diagrams 3.2

and 3.3:

Check the power supply

Seal all unnecessary cable glands using the supplied plugs

Screw in the occupied screw cable glands carefully

Close the doors. The screws must be tightened evenly until the door frame touches the housing

surface

Connect protective gases with required pressure (0.2...0.4 MPa upstream of pressure regulator)

Set the pressure regulator of the EEx p safety device to at least 0.2 MPa.

When measuring combustible gases with the type of protection EEx p with "Compensation of losses

resulting from leaks" it must be ensured that the sample gas pressure applied to the analyzer is not

more than 160 hPa (160 mbar) above the ambient pressure and always more than 5 hPa below the

purging gas pressure. If this condition cannot be met with fail safety, a differential pressure monitor

must be inserted between the sample gas and purging gas as additional protection.

The analyzer may then be started by opening the protective gas line and switching on the power

supply – under consideration of the measures described above.

4.2

Pressure correction

There is an internal pressure sensor in the U 6F for correcting the influence of air pressure. This is

connected to the ambient air by a pipe. To avoid explosive atmosphere diffusing into the pressure

sensor, this pipe must be connected with a hose which ends in the Ex-free zone.

A higher sample gas pressure up to 1500 hPa can only be measured with an external pressure

sensor. Its signal must be fed intrinsically-safe into the analyzer. Its parts which come into contact with

the sample gas must meet the requirements of the measurement. The connection and

parameterization are described in the appropriate equipment manual.

In the O 6F the influence of the sample gas pressure up to 2000 hPa can be corrected with the

internal pressure sensor. A higher pressure up to 3000 hPa can only be measured with an external

absolute pressure sensor.

4.3

Key switch

The Ex protection of the EEx p safety device can be deactivated (key inserted in the lock) using a key

switch (bypass switch). In this manner, the analyzer can also be connected electrically without

protective gas purging (e.g. for maintenance work).

Some EEx p safety devices offer the possibility of effecting the key switch function with an operating

function (key code).

Commissioning with the "key switch" always requires permission of the user or a person authorized by

him. It may only be granted if it is certain that there is no explosive atmosphere for the duration of the

planned work or if the necessary precautions against the risk of explosion have been taken (so-called

"Firing permission").

At the end of maintenance work, make absolutely sure that the key switch is turned off again.

E-12

Additional Equipment Manual EEx p

Order No.:

A5E 000

58873-02