J DF 3 0 0 |
FI EL D I N D I C ATO R | O I/J D F 3 0 0 - EN R E V. B
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11 Maintenance
If the field indicator is used as intended under normal
operating conditions, no maintenance is required. It is
sufficient to check the output signal at regular intervals (in
accordance with the operating conditions). If deposits are
expected to accumulate, the equipment should be cleaned on
a regular basis, in accordance with the operating conditions.
Cleaning should ideally be carried out in a workshop.
Repair and maintenance activities may only be performed by
authorized customer service personnel.
When replacing or repairing individual components, original
spare parts must be used.
The electronic components of the printed circuit board can
be damaged by static electricity (observe ESD guidelines).
Make sure that the static electricity in your body is
discharged when touching electronic components.
No repair is allowed in all JDF300 flameproof joints: threads
of enclosure, covers and plugs. Contact the manufacturer for
specific flamepath joint details during repair of flameproof
Ex d apparatus.
For areas subject to explosive dust atmospheres the painted
surface of the JDF300 may store electrostatic charge and
become a source of ignition in applications with a low relative
humidity < 30% where the painted surface is relatively free
of surface contamination such as dirt, dust or oil. Guidance
on protection against the risk of ignition due to electrostatic
discharge can be found in IEC TS 60079-31-1. Cleaning of the
painted surface shall only be done in accordance with the
manufacturer’s instructions.
Explosion-proof field indicator must be either repaired by
the manufacturer or approved by a certified expert following
repair work. Observe the relevant safety precautions before,
during and after repair work. Only disassemble the field
indicator to the extent necessary for cleaning, inspection,
repairs, and replacement of damaged components.
Returns and removal
Defective field indicator sent to the repairs department must,
wherever possible, be accompanied by your own description of
the fault and its underlying cause.
Before removing or disassembling the device, read the
instructions in “safety” and electrical connection and
perform the steps outlined there in reverse order.
Basic maintenance activities
Essentially maintenance is not required for JDF300 field
indicator. Anyway the following items should be checked
periodically:
• Check the integrity of the housing and covers (no cracks
should be visible).
• Check that there is no tear or corrosion on electrical
connection(s).
In case one of the check points above fails, please replace the
damaged part with an original spare part.
Please contact your local ABB office for spare parts support
information or refer to the spare part list.
The use of non original spare parts makes the warranty void. In
case you want ABB to perform the repair, please send back the
field indicator to your local ABB office complete with the return
form that you find in this manual appendix and include it with
the device.
Do not use sharp or pointed tools.
NOTICE
NOTICE
WARNING
WARNING
WARNING
WARNING
