Kobold DOG-4, Operating Instructions Manual

Page: 7 / 44

DOG-4
DOG-4 K08/0818 page 7
3.4 Repair, maintenance (for applications in Ex areas)
Definition of terms as defined in IEC 60079-17:
Repair and maintenance: A combination of all activities carried out to maintain an
item or restore the object to a state in which it is able to meet the requirements of the
relevant specification and ensure the execution of its required functions.
Inspection: An activity comprising the careful examination of an item carried out
either without demounting or, if necessary, with partial demounting through such
steps as measurement in order to reliably determines the condition of the item.
Visual inspection: An inspection in which visible faults, e.g. missing bolts, are
detected without the use of equipment or tools.
Close inspection An inspection which comprises the aspects of a visual inspection
in addition to identifying defects, e.g. loose bolts, apparent only by access with the
use of equipment, e.g. steps (when necessary) and tools. Close inspections do not
normally require an open enclosure or the de-energizing of the equipment.
Detailed inspection An inspection which encompasses those aspects covered by a
close inspection and, in addition, identifies those defects, e.g. loose connections
which are only be apparent by opening the enclosure and/or using tools and test
equipment where necessary.

Maintenance work may be performed only by qualified personnel with the
equivalent of or qualification according to TRBS 1203 (German Technical
Rules for Industrial Safety).

Only accessory parts which fulfill all European regulations and national laws
may be used in hazardous areas.

The replacement of components may only take place using original spare
parts approved for use in Ex areas as well.

The devices in Ex areas must be cleaned regularly. The intervals must be
specified by the operator according to the environmental load.

After maintenance and/or repair, replace all barriers and notices removed in
the process in their original positions.

Uninstall the device if any faults are detected. The customer may not repair
internal parts. Send the device to the manufacturer for inspection.
Task
Visual inspection
monthly
Check
every 6 months
Detailed inspection
every 12 months
Visual inspection of the device for
integrity, remove dust residues
● ●
Inspection of the entire system Responsibility of the operator
3.1 Disposal
Disposal of the packaging and the used parts must be carried out according to the
regulations of the country in which the device is installed.