IT7300 User Manual
User Manual
39
> Set phase angle and start test
1
Press compound key
(Shift)+
9
（*Dimmer）and
enter menu operation
OFF
9.0V 0.0mA 50.0
Dimmer=30.0°
2
Press numeric key to set angle, press
Enter
to
confirm. Also you can adjust angle by knob to view
real-time waveform changes along .
3
Press
and numeric key to set voltage
based on requirement. Press
Enter
4 Power source output dimmer wave with “*” shining.
5.11 Output range
IT7320 series AC source will allow switchover between High range and Auto range. Take
IT7321 as example, the voltage, current and apparent power at the High range is
300V/1.5A/300VA; the voltage, current and apparent power at the Low range is
150V/3A/300VA. Auto range refers to auto switchover mode between High range and Low
range.
You can choose the range according to actual test requirements. When Auto range is
chosen, the switchover between High range and Low range will be performed by the
instrument automatically, thus sparing complicated operations such as manual setting.
Switch High range and Auto range:
Press
(Shift) and (High/Auto) together to switch between High range and Auto
range. When High range is chosen, press the
(Shift) and (High/Auto) together
to switch to Auto range. The indicator “Auto” on the VFD will be on.
Note: There is a temporary OFF to the AC source during the switchover of range
5.12 Key lock
The front panel keys can be locked to prevent unwanted changes to output settings and AC
source configurations.Follow the steps below to enable/disable key lock.
Press
( (Shift)+
On/Off
（Lock）button to set the key lock state.If keyboard has been
locked,the indicator light ”Lock” will display on the VFD .In addition,when keyboard are
locked,all buttons can’t be used except ON/OFF key and (Shift) key. Press
(Shift)+
On/Off
（Lock） once again will relieve key lock function.
5.13 BNC
There is a composite terminal at the rear panel of the AC source(see description of rear
OFF
0.0V 0.0mA 50.0
0.00W PF=0.000 Lock
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