Section 2 Before Using
2-8
2.3.1 Power Requirements
For normal operation of the instrument, observe the power voltage range described below.
Power source
100 Vac system
200 Vac system
Voltage range
100 to 120 V
200 to 240 V
Frequency
50 to 60 Hz
50 to 60 Hz
Changeover between 100 and 200 V systems is made automatically.
CAUTION
Supplying power exceeding the above range may result in electrical shock, fire,
failure, or malfunction.
2.3.2 Connecting the Power Cord
Check that the main power switch on the rear panel is turned off (switched to the (O) side).
Insert the power plug into an outlet, and connect the other end to the power inlet on the rear panel. To ensure that the
instrument is earthed, always use the supplied 3-pin power cord, and insert the plug into an outlet with an earth terminal.
WARNING
If the power cord is connected without the instrument earthed, there is a risk of
receiving a fatal electric shock. In addition, the peripheral devices connected
to the instrument may be damaged.
When connecting to the power supply, DO NOT connect to an outlet without an
earth terminal. Also, avoid using electrical equipment such as an extension
cord or a transformer.
CAUTION
If an emergency arises causing the instrument to fail or malfunction, discon-
nect the instrument from the power supply by either turning off the main power
switch on the rear panel (switch to the (O) side), or by pulling out the power
cord or the power inlet.
When installing the instrument, place the instrument so that an operator may
easily operate the main power switch.
If the instrument is mounted in a rack, a power switch for the rack or a circuit
breaker may be used for power disconnection.
It should be noted that, the power switch on the front panel of the instrument is
a standby switch, and cannot be used to cut the main power.
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