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3-6
IM AQ6373-01EN
3.3 Turning the Power ON/OFF
Before Connecting the Power
Take the following precautions before turning on the power supply. Failure to do so can
result in electric shock or damage to instruments.
WARNING
• Before connecting the power cord, ensure that the power supply source voltage
matches the rated supply voltage of the instrument and that it is within the
maximum rated voltage of the provided power cord.
• Check that the instrument’s power switch is OFF before connecting the power
cord.
• To prevent the possibility of electric shock or fire, always be sure to use the
power cord supplied for the instrument by YOKOGAWA.
• Make sure to implement protective earth grounding to prevent electric shock.
Connect the instrument’s power cord into a three-prong electrical outlet with a
protective grounding terminal. The AC outlet must be of a three-prong type with
a protective earth ground terminal.
• Do not use an extension cord without protective earth ground. Otherwise, the
protection function will be compromised.
• Use an outlet that is compatible with the accessory power cord, and be sure to
connect protective grounding. Do not use the instrument if the power outlet does
not provide appropriate protective grounding.
Preparing to Turn ON the Power
The AQ6373 has a
MAIN POWER
switch for turning the main power ON/OFF, and a
POWER
switch for starting and shutting down the instrument.
The POWER
switch is a
push-button switch; press once to turn it ON and press again to turn it OFF.
• Confirm that the
MAIN POWER
switch on the rear panel of the instrument is OFF.
• Connect the power cord plug to the power connector on the rear panel.
• Connect the other end of the cord to an outlet that meets the following conditions. Use
a grounded three-prong outlet.
Item
Rated supply voltage*
100 VAC to 240 VAC
Permitted supply voltage range
90 VAC to 264 VAC
Rated power supply frequency
50/60 Hz
Permitted supply frequency range
48 Hz to 63 Hz
Maximum power consumption
Approx. 150 VA
* This instrument can use a 100 V or a 200 V power supply. The maximum rated voltage differs
according to the type of power cord. Before you use the instrument, check that the voltage
supplied to it is less than or equal to the maximum rated voltage of the power cord provided
with it (see page ii for the maximum voltage rating).
•
Before replacing a fuse, always turn the
MAIN POWER
switch OFF and remove the
power cord from the power outlet.
CAUTION
Do not input a strong light source to the instrument when turning the power ON. If a
strong light source is input, the optical section can be damaged.