25
3. Remove the four case fixing screws and lift off case
bottom.
4. Carefully unclip the battery cable connector leading
from the main printed circuit board to the battery and
remove the cables from recesses designed to hold
them in place.
5. Remove the four screws and lift off the battery cover.
6. Remove the used battery and replace with a genuine
spare battery ordered from Megger, ensuring correct
orientation of cable exit.
7. Route the battery cables via the recesses and clip the
battery connector to the printed circuit board battery
receptacle
ensuring correct orientation
.
8. Replace the battery cover and secure with the four
screws.
9. Ensure the alignment of the instrument panel and high
voltage moulding, then replace the lower case and
secure with the retaining screws. Take especial care
not to leave foreign bodies inside the casing.
10. Check and verify instrument operation.
MIT1525 battery packs (x 2) replacement instructions:
1. Switch the instrument OFF, and disconnect the AC
supply, measurement leads, and all other equipment
before opening the case to change the battery.
2. Always
replace both battery packs
together.
3. The instrument must not be operated with the case
open.
DANGER!
Hazardous voltages are exposed with
an AC source connected and the case open.
4. Remove the lid and invert the lower case resting the
front panel on a soft surface so as not to damage the
keypad.
5. Remove the four case fixing screws and lift off case
bottom.
6. Remove the two screws holding the battery support
bracket and remove the bracket.
7. Withdraw one used battery and carefully unclip its
battery cable connector, then the other used battery
and its connector.
8. Replace with two genuine spare batteries ordered from
Megger,
ensuring correct orientation
of the cable in
the socket.
9. With both new batteries fitted, replace the battery
support bracket and the two retaining screws.
10. Replace the lower case and secure with the retaining
screws.
11. Check and verify instrument operation.
