Anritsu MT9812B, Operation Manual, Page: 5 / 144

For Safety
v
CAUTION
1. Always remove the mains power cable from the power outlet before
replacing blown fuses. There is a risk of electric shock if fuses are
replaced with the power cable connected. Always use new fuses of
the type and rating specified on the rear panel of the instrument.
There is a risk of fire if a fuse of a different rating is used.
T5A indicates a time-lag fuse.
2. Keep the power supply and cooling fan free of dust.
• Clean the power inlet regularly. If dust accumulates around the
power pins, there is a risk of fire.
• Keep the cooling fan clean so that the ventilation holes are not
obstructed. If the ventilation is obstructed, the cabinet may
overheat and catch fire.
Fuse Replacement
Cleaning