IT7300User Manual
User Manual
16
Chapter3 Power on check
This chapter will introduce the procedure of power on check, including pre-check and output
check, to make sure the IT7320 series AC source can power on and work normally on the
original state.
3.1 power on checkout
Before operate the AC source, please read the following safety guide:
Warning：The power supply is shipped from the factory with a power-line cord
that has a plug appropriate for your location. Your power supply is
equipped with a 3-wire grounding type power cord; the third conductor
being the ground. The power supply is grounded only when the
power-line cord is plugged into an appropriate receptacle.
Warning：Use wire with appropriately rated load capacity of all load wires must
be able to withstand the maximum short-circuit output current of the
power without overheating. If there is more than one load, each load wire
must be able to safely carry the power of full rated short-circuit output
current.
Warning：In order to reduce the risk of fire and electric shock, make sure that the
mains supply voltage fluctuations should not exceed 10% of the operating
voltage range.
Note: In some cases, misconfigurated mains voltage for the instrument may cause
the mains fuse disconnected.
Power on pre-check includes two parts: power on check and system self check.
3.1.1 Power on the supply
Use the following steps to help solve problems you might encounter when turn on the
instrument.
1) Verify a good condition of Mains supply connection
First, verify that the power cord is firmly plugged into the power receptacle on the rear
panel of the AC source. You should also make sure that the power source you plugged the
AC source into is energized. Then, verify that the power supply is turned on.
2) Verify the power-line voltage setting.
The line voltage is set to the proper value for your country (220VAC or 110VAC) when
the power supply is shipped from the factory.
IT7321/IT7322/IT7322H/IT7324/IT7324H models support 110V/220V AC input.The AC
line switch is located at the buttom of the unit.Please pay attention to the AC level setup
before provide AC power.
IT7326 only support 220V AC input.
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