Major tech MT1883, Instruction Manual, Page: 14 / 16

Note: If your meter does not work properly, check the fuses and
battery to make sure that they are still good and that they are
properly inserted.
7. Replacing the Fuses
Warning:
To avoid electric shock, disconnect the test leads from any
source of voltage before removing the back cover.
1. Disconnect the test leads from the meter and any item under
test.
2. Open the back cover by loosening the screw on the back cover
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 (0.2A/250V fast
blow for the 200mA range, 20A/250V fast blow for the 20A
range).
6. Put the back cover on by inserting the screw and tightening it
securely.
Warning: To avoid electric show, do not operate your meter until the
fuse cover is in place and fastened securely.
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