5
SERVICE
26
OPTIWAVE X400
www.krohne.com
10/2017 - 4006413501 - AD NEPSI OPTIWAVE x400 R01 en
5.1 Periodic maintenance
In normal operational conditions, no maintenance is necessary. Only the manufacturer can
repair the device and replace components. If it is necessary, maintenance must be done by
approved personnel (the manufacturer or personnel approved by the manufacturer).
5.2 Keep the device clean
Obey these instructions:
•
Keep the thread of the terminal compartment cover clean.
•
Do not blow dust with compressed air if it collects on the device. Clean the device with a damp
cloth.
CAUTION!
Do not try to repair flameproof joints. If it is necessary to repair a flameproof joint, speak or write
to your supplier.
Do not replace an Ex ia electronic block with a different block that is from a device which does
not have an intrinsically-safe barrier.
Do not use connectors in the signal converter housing or open the cover to change the device
configuration when there is an explosive atmosphere. Maintenance can only be carried out by
"Personnel trained in explosion protection".
INFORMATION!
For more data about regular inspections and maintenance procedures for devices with Ex and
other approvals, refer to the related supplementary instructions.
WARNING!
The device contains a PTFE boundary wall (unless the device has a hygienic antenna option)
between the process and the signal converter. If the PTFE part is not resistant to corrosion by
your cleaning agents, do not clean the device with them.
If the device has the hygienic antenna option, it contains a PEEK boundary wall between the
process and the signal converter. If the PEEK part is not resistant to corrosion by your cleaning
agents, do not clean the device with them.
If you use the incorrect cleaning agent (i.e. the device is not resistant to corrosion by your
cleaning agent), do not use the device in a hazardous location. If aid is necessary, speak or write
to the supplier.
