ITech IT7900P Series User Manual page 99

Parameter Description
Mode surge/sag executing mode.
Trig: Trigger mode. Executing the surge/sag after receiving
Period: Period mode. Execute the surge/sag based on the
period.
Action This setting is valid when the mode select to Trigger.
Trig source Select the trigger source when the mode select to Trigger.
Start angle Set the start phase angle of the surge/trap when the mode
select to trigger.
Angle width Set the period of the surge/trap. For example, start
angle=30 degree, Angle width=30 degree, then, the
waveform will execute surge/sag at 30 to 60 degree.
Symmetry Whether to produce symmetrical surge/sag waves.
If Start angle + Angle width >180°,this setting is Off state.
Repeat count repeat count of surge/sag waves.
Period count Number of cycles to generate surge/sag waves. This
parameter is meaningful only in Peroid mode.
This setting is used in combination with Repeat count, for
example, if Repeat count is set to 5 and Period count is
set to 10, five surge/sag waves occur in every 10 cycles.
Enable Phase
A&C/PhaseA&B&C:
Select the phase information where the surge/notch
occurs.(displays under 3-phase mode)
Enable Synchronize: Each of the three phases executes
surge/trap at the same time.
Specify Phase: Each of the three phases executes
surge/trap at the specified phase.
(displays under 3-phase mode)
Value select Value select:
Percent: Set the percentage of the surge/trap amplitude to
AC signal amplitude (RMS).
Setting: Set the value of the surge/trap amplitude.
3. Press [On/Off] on the front panel and enable the input.
4. Press [Run] on the interface, Then the running status will be displayed on
LCD. Input parameters and measurement parameters are displayed on the
left side of the interface. You can also press the Meter to observe the input
parameters in the main interface.
5. After execute, [On/Off] on the front panel will be off, and running status will
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the trigger signal.
Imme: Executing the surge/sag immediately.
Angle: Executing the surge/sag at specific angle.
A/Phase B/Phase
Operation and Application
A&B/Phase B&C/Phase
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