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3.4 Connecting to a Power Supply and Turning the
Power Switch On and Off
Before Connecting the Power
Make sure that you observe the following points before connecting the power. Failure to do so may
cause electric shock or damage to the instrument.
WARNING
• Before connecting the power cord, ensure that the source voltage matches the rated supply
voltage of the instrument and that it is within the maximum rated voltage of the provided
power cord.
• Connect the power cord after checking that the power switch of the instrument is turned off.
• To prevent the possibility of electric shock or fire, be sure to use the power cord for the
instrument that was supplied by YOKOGAWA.
• To avoid electric shock, be sure to ground the instrument. Connect the power cord to a
three-prong power outlet with a protective earth terminal.
• Do not use an extension cord without a protective earth ground. Otherwise, the protection
function will be compromised.
• If an AC outlet that conforms to the accessory power cord is unavailable and protective
grounding cannot be furnished, do not use the instrument.
Connecting the Power Cord
1.
Check that the power switch is off.
2.
Connect the power cord plug to the power inlet on the left side panel.
3.
Connect the other end of the cord to an outlet that meets the conditions below. Use the three-
prong power outlet equipped with a protective earth terminal.
Rated supply voltage*
100 to 120 VAC/200 to 240 VAC
Permitted supply voltage range
90 to 132 VAC/180 to 264 VAC
Rated supply voltage frequency
50/60 Hz
Permitted supply voltage frequency range
48 to 63 Hz
Maximum power consumption
Approx. 200 VA max.
(This value is for reference. When the built-in printer is not
being used and there are 16 active channels provided by
eight high-speed 10 MS/s 12-bit isolation modules, the
maximum power consumption is 135 VA.)
* The instrument can use a 100 V or a 200 V power supply. The maximum rated voltage differs according
to the type of power cord. Check that the voltage supplied to the DL850/DL850V is less than or equal to
the maximum rated voltage of the provided power cord (see page iii) before using it.
3-9
IM DL850-03EN
Making Preparations for Measurements
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6
App
Index