The OM 17 unit has been mechanically and electrically tested prior to shipping. It has been handled with all of
the necessary care to ensure that it reaches the user undamaged.
It is, however, good practice to perform a quick check in order to detect any deterioration that may have taken
place in transit. If any deterioration is found, declare any reservations to the carrier immediately.
b) Return Shipping
If return shipping is required, the unit should preferably be sent back in its original packaging, with a note
attached to it stating as clearly as possible the reason for its return.
Faults and abnormal ConstraintsA.4.5
Should there be any indication that the protection of the unit has been compromised, it should be switched off
and steps taken to prevent it being used inadvertently.
Protections may have been compromised in the following cases, for example:
The unit is obviously damaged.
The unit is no longer capable of taking accurate measurements.
The unit has been stored under unfavourable conditions.
The unit has been subjected to severe stresses during transport.
Table of Symbols usedA.4.6
MaintenanceA.4.7
The fuse replacement of the instrument, the fuse located on the battery replacement and adjusting the
instrument procedure are described in chapter E
The unit should be reassembled as explained in the instruction manual. If the unit is incorrectly or incompletely
reassembled, the operator’s safety may be compromised.
The responsible body must check on a regular basis that none of the components ensuring safety has
deteriorated, and undertake all the necessary steps for preventive operations.
Before the casing is opened, make sure that the measuring leads have been disconnected from the unit and
that the mains cord is also disconnected.
The unit should not be opened up for adjustment, maintenance or repair unless this is absolutely essential, in
which case this work should be carried out only by qualified personnel advised of the risk entailed
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