UNI-T UT803 Operating Manual page 52

Fuse 4:It is located at the PCB. Remove the fuse
by gently prying one end loose, then take out the
fuse from its bracket. Then install the replacement
fuse
3. Install ONLY replacement fuses with the identical
type and specification as follows and make sure the
fuse is fixed firmly in the bracket.
Fuse 1: 200mA, 250V, fast type, 5x20mm (AC220V)
Fuse 2: 10A, 250V, fast type, 5x20 mm (A)
Fuse 3: 500mA, 250V, fast type, 5x20 mm (µA, mA)
Fuse 4: 200mA, 250V, fast type, 5x20 mm (hFE)
Replacement of the fuses is seldom required. Burning
of a fuse always results from improper operation.
50
Model UT803: OPERATING MANUAL