Operation and Application
• Off: Default value, indicating that the Dimmer function is disabled.
• LeadingEdge: indicate that the Leading Edge Dimmer function is
enabled.
• TrailingEdge: indicate that the Trailing Edge Dimmer function is
enabled.
4. Set the dimmer phase angle.
a. Rotate the knob and select the Dimmer Phase. Press [Enter] key to set
the dimmer phase angle.
b. Press [Esc] to exit the function menu setting.
5. Press [On/Off] key, and the power supply outputs the set phase dimmer
waveform. Press[On/Off] again to stop output.
10.0V 3.00A 45.0Hz
Phase= 90.0° TrailingEdge
• The phase dimmer function can only be used under the AC Mode.
• IT-M7721L/IT-M7722L do not support dimmer function.
4.9.4 Surge/Trap Function
IT-M7700 provides surge/trap simulation. The user can add surge/trap to simu-
late abnormal voltage fluctuation on the basis of outputting Sin wave, and test
usage of the DUT under this circumstance. The descriptions of surge/trap menu
are listed in the table below.
Surge Trap Surge/trap function.
Off
Turn the surge/trap function off.
On
Turn the surge/trap function on.
Period
Set the period of the surge/trap.
Width
Set the surge/trap width.
Percent
Set the percentage of the surge/
trap amplitude to AC signal ampli-
tude (rms).
Operation Steps:
1. Press the [AC] key to set the instrument to AC output mode.
2. Refer to 4.3 Set the AC Output to set parameters related to basic Sine
waveform.
Copyright © Itech Electronic Co., Ltd.
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