Anritsu 680XXC, Руководство по эксплуатации, Страница: 23 / 241

2-3
PREPARATION FOR USE
Preparation for use consists of checking that the rear panel line volt-
age selector switch is set for the correct line voltage and connecting
the signal generator to the power source. The following paragraphs
provide these procedures along with information about power require-
ments, warmup times, and the operating environment.
Power
Requirements The signal generator accepts 90 to 132 Vac and 180
to 264 Vac, 48 to 440 Hz, single-phase power. Power
consumption is 400 VA maximum. The signal gen-
erator is intended for Installation Category (Over-
voltage Category) II.
Line Voltage
Selection
The line voltage selector switch on the rear panel
can be set for either 110 Vac or 220 Vac operation
(Figure 2-1). When the switch is set to 110 Vac, the
681XXC accepts 90 to 132 Vac line voltage. When
the switch is set to 220 Vac, the 681XXC accepts 180
to 264 Vac line voltage. If the selector setting is in-
correct for the line voltage available, change it to
the correct setting.
Whenever the selector setting is changed, the line
fuse must be changed to the correct value for the
line voltage selected. Line fuse values for the line
voltages are printed on the rear panel next to the
fuse holder.
Power
Connection Connecting the 681XXC to line power automatically
places it in operation (front panel
OPERATE LED
on). To connect it to the power source, plug the fe-
male end of the power cable into the input line volt-
age receptacle on the rear panel (Figure 2-1). Then
plug the male end of the power cord into a three-
wire power line outlet.
2-4 681XXC OM
PREPARATION
INSTALLATION FOR USE
Before applying power, verify that the unit is set to match
the available line voltage and that the installed fuse is of
the correct type and rating.
CAUTION
When supplying power to this equipment, always use a
three-wire power cable connected to a three-wire power line
outlet. If power is supplied without grounding the equip-
ment in this manner, there is a risk of receiving a severe or
fatal electric shock.
WARNING