Function and Device Design
6
161936 / 941160310020
2015-09-15·BA00·III·en·08
Zone 1 Ex e field device coupler
Series 9411/11
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Maintenance, repair, commissioning
• Before commissioning, make sure that the device is not damaged.
• Work on the device, such as installation, maintenance, overhaul, repair, may only be
carried out by appropriately authorised and trained personnel.
• Perform only maintenance work or repair described in these operating instructions.
3.3
Modifications and Alterations
4
Function and Device Design
4.1
Function
Application range
The field device coupler is used for connecting up to four or eight intrinsically safe field
devices to a non-intrinsically safe trunk.
They are suitable for use in hazardous areas in Zones 1, 2, 21 and 22 and in a
non-hazardous area.
If the coupler is used in a hazardous area, an enclosure approved for this area must be
installed.
Intended use
The devices can be used as intended:
• For all fieldbuses with an IEC 61158-2 physical layer, e.g. Foundation Fieldbus H1 and
Profibus PA.
• For non-intrinsically safe trunks, Ex e connections.
• For non-intrinsically safe spurs, Ex e connections.
DANGER
Explosion hazard due to modifications and alterations to the device!
Non-compliance results in severe or fatal injuries.
• Do not modify or alter the device.
No liability or warranty for damage resulting from modifications and
alterations.
DANGER
Explosion hazard due to improper use!
Non-compliance results in severe or fatal injuries.
• Use the device only in accordance with the operating conditions
described in these operating instructions.
• Use the device only for the intended purpose specified in these
operating instructions.
