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Safety notes

Using the OpenStage M3 Ex and

OpenStage M3 Ex Plus handsets in potentially

explosive working environments

This handset fulfils the requirements of the ATEX Directive and meets the

required EN and IEC standards (see the appendix in the operating manual).

See also the notes in the declaration of conformity.

OpenStage M3 Ex and OpenStage M3 Ex Plus were designed for use in

potentially explosive working environments (Ex zones) and in compliance

with fire prevention regulations. Local and operational factors may lead to

an explosive atmosphere in an Ex zone. Therefore, please observe the

following Ex safety notes:

Handset:

• The handset may only be operated in Ex zones where it is

certified. Refer to the appendix in the operating manual, the

device identification and the EC type examination certificate. A

copy of the prototype verification certificate ZELM 08 ATEX

0379 X can be found in the appendix of this operating manual.

• Users must check the handset for damage and verify that it is

operating correctly before using it in the Ex zone. A damaged

handset or a handset that is not fully functional may not be

brought into or used in the Ex zone.

• The following requirements must be met to satisfy the Ex

protection and IP rating IP 65 (casing protection) in an Ex zone:

– The battery compartment seal must not be damaged.

– The cover of the battery compartment must be tightly

screwed on.

• Deactivate the handset immediately and remove it from the Ex

zone if the following situations occur:

– You notice damage to the handset.

– If liquids have seeped into the handset.

• Repair a damaged handset immediately.

• Only service employees with Ex zone training and authorisation

should repair and service the handset.

• When swapping out a malfunctioning device/battery, the

technician must return the malfunctioning device/battery to the

manufacturer while specifying the customer data.

• Inappropriate use of the handset will result in revocation of its

certification for use in Ex zones.

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