Ex Ic; Housing; Repair And Maintenance; Disposal - Pepperl+Fuchs HD2 Series Manual

Compact Fieldbus Power Hub,Generic Interface
Safety
In Zone 2, only such device is allowed to be connected to circuits that is suitable for the
operation in hazardous areas of Zone 2 and for the conditions available at the place of
operation (declaration of conformity or certificate of a testing department).
1.8.3

Ex ic

The intrinsically safe circuits of the associated apparatus may lead into hazardous areas. Make
sure to observe all relevant distances (creepage distances, clearances) to all non-intrinsically
safe circuits in accordance with IEC/EN 60079-14.
If "Ex ic" protected circuits are operated with non-intrinsically safe circuits, they must no longer
be used as "Ex ic" protected circuits.
The respective peak values of the field device and the associated apparatus with regard to
explosion protection should be considered when connecting intrinsically safe field devices with
intrinsically safe circuits of associated apparatus (verification of intrinsic safety). Make sure to
observe IEC/EN 60079-14 and IEC/EN 60079-25.
When using the Fieldbus Power Hub with Pepperl+Fuchs Segment Protectors to generate Ex ic
rated outputs, connector covers (ACC-MB-CC) have to be plugged on the bulk power supply
connectors. This is to guarantee the clearance distance of 50 mm between host terminal and
power supply connectors.
The device must be installed and operated only in an environment that ensures a
pollution degree 2 (or better) according to IEC/EN 60664-1.
1.9

Housing

If additional housings are needed for installation in hazardous areas, the following points must
be considered / evaluated:
To ensure the degree of protection:
All seals must be undamaged and correctly fitted.
■
All screws of the housing/housing cover must be tightened with the appropriate torque.
■
Only cable of the appropriate size must be used in the cable glands.
■
All cable glands must be tightened with the appropriate torque.
■
All unused cable glands must be sealed or plugged with corresponding stopping plugs
■
1.10

Repair and Maintenance

The devices must not be repaired, changed or manipulated. If there is a defect, the product
must always be replaced with an original device.
1.11

Disposal

Disposing of device, packaging material, and possibly contained batteries must be in
compliance with the applicable laws and guidelines of the respective country.
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