Changing the Fuse
If the instrument display reads .P.P.P when the instrument is connected to AC power or when REGEN is pressed, or if the battery will not charge, the fuse may need to be replaced. The AC line power could also be less than 100 VAC (220 VAC). Check the fuse with an ohmmeter and the AC line power with a voltage meter.
•Locate the power receptacle on the rear of the instrument.
•Insert a small screwdriver in the slot, located in the power receptacle, and gently slide the fuse compartment out.
•If the fuse in the
•Replace the discarded fuse with the spare fuse located in the
•Replace the fuse compartment in the power receptacle.
As soon as possible, replace the spare fuse with another 1A, 250V, time delay fuse, AZI P/N 5100 1012).
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