ADInstruments AD505N Instrument Manual page 22

AD Instruments
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8. MAINTENANCE
x Batteries Replacement
(1) If 0W adjustment is impossible in x1W range. The two internal 1.5V (UM-3,
SUM-3, or R6) batteries have worn out. Replace them with fresh ones.
(2) To replace the batteries. Open the rear case after removal of the screw and
insent them into the battery compartment correctly, taking note of their
polarities.
x Fuse Replacement
(1) When the fuse is blown, the tester fails to work.
(2) Open the rear case, removal of the screw.
(3) Replace fuse with new fuse, refer to Fig.1 And Fig.2
for its position.
(4) Close the case and lock the screw.
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Manual de usuario AD505N