Figure; Warnings - Megger OTS 60AF Guia Del Usuario

1. Ensure that the oil test set is properly earthed before use. The test set MUST be connected
to a socket outlet with a protective earth conductor. To ensure effective earthing, it is
recommended that the green/yellow terminal on the mains input panel at the rear of the test set
be separately connected to a known good earth.
2. Before connecting the mains supply, ensure that the mains supply voltage selector is set to the
correct value for the power supply to be used. The voltage selector is located on the mains input
panel at the rear of the test set.
3. Ensure that the test chamber is always scrupulously clean, particularly prior to a test. Wipe away
any spilled oil in the test chamber or on the test vessel when necessary.
The vessel must be properly positioned in the test chamber on the top of the support horns.
4. If the test chamber cover is cracked or damaged in any way, the test set MUST NOT be used.
The cover must be replaced, by an authorised repairer, before the set is put into service again.
5. The oil test set has a metal emc/discharge barrier on the inside of the test chamber cover which
is connected via two springs to the earth pin of the mains supply input plug. The continuity
between the metal barrier and the earth pin must be routinely checked at weekly intervals. There
are also two touch contacts from the metal barrier on to the casing. The integrity of these
contacts should be verified when closing the cover.
6. The test set is fitted with high breaking capacity ceramic fuses to IEC 127. It is essential that any
replacement fuses fitted to the test set conform to this specification, (for full details see the
Specification section). Glass fuses MUST NOT be used due to their low breaking capacity.
7. Only test vessels manufactured and supplied by Megger Limited for use with the OTS60AF/2,
OTS80AF/2 or OTS100AF/2 sets must be fitted within their respective test chambers. Vessels
for the OTS80AF/2 and OTS100AF/2 can be recognised by their shrouded connector arms (the
supports are contained in clear plastic tubes which are part of the vessel moulding).
Vessels for the OTS60AF/2 are of simpler construction and do not have shrouded connector
arms. For safety reasons these vessels MUST NOT be used on the OTS80AF/2 or OTS100AF/2
test set.
The correct vessel types, made of clear resin construction with integral RFI suppression are
shown in Figures 4 and 5. No other vessel or container, (including any which may look similar)
must be used.
8. Damage to the test set and loss of warranty may result from the use of the wrong oil test
vessels.
9. Casing panels or covers must not be removed while the test set is connected to the mains
supply. To do so will expose live parts of the circuit. Internal capacitors may retain their charge
even when the test set is disconnected from the mains supply (especially under fault conditions).
Any adjustments or repair must be carried out by trained qualified personnel, therefore loss of
Warranty may result if work is carried out by personnel other than the manufacturer or one of his
approved agents.
10. Whenever it is likely that the test sets protection has been impaired, it must NOT be used, but
taken out of service and returned to the manufacturer or his approved agent for repair.
The protection is likely to be impaired if, for example the test set shows visible signs of damage;
fails to perform the intended measurements; has been subjected to prolonged storage under
unfavourable conditions or has been subjected to severe transport stresses.
11. If the oil test set has been exposed to severe environmental changes i.e. in humidity or
temperature, it should be allowed to acclimatise to its new conditions for a period of not less than
12 hours before use.

Warnings

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