ITech IT7300 Series - Function Operation; Sweep

IT7300 User Manual
User Manual
33
5.10 Function operation
5.10.1 Sweep
The Sweep function is used to test efficiency of switching power supply and capture the
voltage and frequency at the maximum power point. The voltage and frequency of power
may be altered in the form of step ladder by setting the initial voltage, final voltage, step
voltage, initial frequency, final frequency, step frequency and one-step time. The one-step
time may be indicated in seconds, minutes or hours. A maximum of 10 files may be stored.
As the test closes, voltage, frequency and current at the maximum power point may be
displayed.
> Edit sweep file
Note: In the following operations, up and down keys are used to turn over steps, but not to
increase or decrease value.When up arrow appears in the lower left corner,you can press
the up key to jump to the previous step.When down arrow appears in the lower right
corner,press down key can entry the next step.
STEP OPERATION VFD DISPLAY
1
Press
(Shift)+ (Sweep)to enter menu
operation
SWEEP
Edit Recall Disable
2
Press
Enter
to confirm when Edit is shining.
START VOLTAGE
Voltage= 0.0
V
3 Press number key or knob to set start voltage, press
Enter
to confirm
END VOLTAGE
Voltage= 0.0
V
4 Press numeric key or knob to set stop voltage, press
Enter
to confirm
STEP VOLTAG
Voltage=0.1
V
5 Press numeric key or knob to set step voltage, press
Enter
to confirm
TIME UNIT
Second Minute Hour
6 Press left and right arrow keys to select time unit
second, minute and hour, press
Enter
to confirm
STEP TIME
Time=2.0
S
7
Set step last time(0.1s~999.9s)，press
Enter
to
confirm
START FREQUENCY
Frequency=50.0
Hz
8
Set start frequency(45Hz~500Hz), press
Enter
to
confirm
END FREQUENCY
Frequency=50.0
Hz
9
Set stop frequency(45Hz~500Hz), press
Enter
to
confirm
STEP FREQUENCY
Frequency=1.0
Hz
10
Set step frequency,press
Enter
to confirm
SWEEP SAVE
No Yes
11 Press left and right arrow keys to select whether
save sweeping file,” No” means do not saving ,” Yes”
means saving.
SWEEP SAVE
Save data bank=0
12
Select save position(0~9), press
Enter
to confirm,
VFD display “SaveData success! “ for 1 second.
SWEEP
Edit Recall Disable