SECTION 2 PREPARATIONS BEFORE USE
2-7
Preparations before Power-on
This unit operates normally when it is connected to an AC 85 to 132 V, or AC 170 to 250 V (automatic voltage
change) 47.5 to 63 Hz AC power supply. To prevent the following problems, take the necessary procedures
described on the following pages before power is supplied.
• Accidental electric shock
• Damage caused by abnormal voltage
• Ground current problems
Note: • The voltage and current rating are indicated on the rear panel when the instrument is shipped
from the factory.
• In this manual, the power supply voltage and current ratings are represented by AC ** V and
*** A, respectively.
To protect the operator, the following WARNING and CAUTION notices are attached to the rear panel of the
MS2665C/2667C.
WARNING
Disassembly, adjustment, maintenance, or other access inside this instrument by unqualified
personal should be avoided. Maintenance of this instrument should be performed only by
Anritsu trained service personnel who are familiar with the risk involved of fire and electric
shock. Potentially lethal voltages existing inside this instrument, if contacted accidentally,
may result in personal injury or death, or in the possibility of damage to precision components.
Always follow the instructions on the following pages.
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