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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 open-sided clip is open,
remove and discard it.
• Replace the discarded fuse with the spare fuse located in the slide-out spare fuse
compartment.
• Replace the fuse compartment in the power receptacle.
➢ As soon as possible, replace the spare fuse with another 1A, 250V, time delay fuse,
(AMETEK BROOKFIELD P/N 5100 1012).
Customer Service 800-528-7411 or 602-470-1414
Page 22 of 52
700-0037 Rev 1.0
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