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6.2

Analyzers for operation in hazardous areas

6.2.1

Analyzer

Following maintenance or the retrofitting of parts associated with explosion protection, the analyzer may only be started

when an Ex specialist has ensured that the analyzer has the essential features and meets the requirements for explosion

protection and issues a certificate to this effect and/or has attached a test symbol to the equipment.

When restarting, make sure that the device has sufficient protection from impact energy of over 2 Joules in the area of the

windows.

Annual maintenance of the analyzer must be carried out to check the electrical safety and reliable operation, in particular the

tightness of the sample gas path within the analyzer. Furthermore, a leak test must be carried out following each intervention

in the gas path (containment system). The leak test is described in section Leak testing of containment system (Page 30)

The owner can extend maintenance intervals in individual cases if no negative effects can be expected on wetted parts

materials (gaskets in particular).

Further information on maintenance of the analyzer can be found in the relevant operating instructions or product manual.

6.2.2

Ex px safety equipment

WARNING

Impermissible repair of the device

Repair must be carried out by Siemens authorized personnel only.

•

The diagnostics and elimination of faults is described in the Operating Instructions of the Ex px safety equipment concerned.

6.2.3

Additional equipment

Maintenance and troubleshooting of the additional equipment is described in the appropriate Operating Instructions.

6.2.4

Spare parts

You can use the following spare parts for the analyzers used in hazardous areas:

● Device fuse (Ex), Order No. A5E00061505

on the back of the left-hand door.

● The complete left-hand door can also be renewed if the left-hand door module (with keyboard and display) is damaged.

There are different door modules depending on the device type and explosion protection rating. Please consult our

service personnel if necessary.

Compact Operating Instructions in accordance with EN 61010-1 and EN 60079-0

A5E45779389002-01, 09/2018