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Replacing The Fuses
WARNING
: To avoid electric shock, disconnect the test leads
from any source of voltage before removing the fuse door.
1. Disconnect the test leads from the meter and any item under
test.
2. Open the fuse door by loosening the screw on the door using a
Phillips head screwdriver.
3. Remove the old fuse from its holder by gently pulling it out.
4. Install the new fuse into the holder.
5. Always use a fuse of the proper size and value (0.5A/250V fast
blow for the 400mA range, 20A/500V fast blow for the20A
range).
6. Put the fuse door back in place. Insert the screw and tighten it
securely.
WARNING
: To avoid electric shock, do not operate your meter until
the fuse door is in place and fastened securely
Trouble Shooting
1. Meter will not turn ON.
Check the battery contacts for a tight fit.
Check for a minimum battery voltage of 8.0 volts.
2. Ampere reading is erratic or there is no reading at all.
Disassemble the meter back cover and test the fuses for
continuity.
3. Meter reading is erratic.
Printed circuit board damaged from handling with hands.
Low battery.
Open circuit in a test lead (frayed or broken wire).
Wrong range selected.
“Blown” fuse.
4. Meter readings do not change.
“Hold” feature is still toggled ON.
F20A,500V
