ITech IT8512A+ User Manual

Functions and Characteristics
Copyright © Itech Electronic Co., Ltd. 34
Set the power on mode to the OCP test mode:
1. Press [Shift]+ [8] (system) to enter into system menu
0.0000V 0.000A
POWER-ON BUZZER
2. Press right key, select RUNMODE and confirm with [Enter] button.
0.0000V 0.000A
RUN NORMAL
3. Press to select OCP_TEST, press [Enter] to confirm.
The VFD displays the OCP test page.
0.0000V 0.000A
STOP 0.000A
4. After above steps, press [.] (Trigger) button to run OCP_TEST file.
Note
To exit the OCP mode, you can press the [Shift]+ [8] (System) buttons
to enter the system menu and set the RUNMODE to NORMAL.
3.10.3 OPP Test Function
IT8500+ series electronic load supports the over power protection (OPP) test
function. In the OPP mode, when input voltage reaches VON point, the DC load
start to draw a power from the source after a delay time. The power value will
increase by a certain step size at regular intervals. Simultaneously, the DC load
will judge whether the input voltage exceeds OPP voltage you’ve set. If it is,
indicates that the OPP has not occurred, then repeat the power stepping
operation until the cutoff power is reached; if not, it indicates that the OPP has
occurred, and then check whether the power value is within the target range. If
it is within the range, PASS, otherwise FAULT. In other words, there are two
conditions for the end of the OPP power step, and if anyone is satisfied, the
stepping operation of the power will be ended.
 Reach the set cutoff power.
 The measured power supply voltage is less than the OPP voltage setting
value.
Press [Shift]+ [CW] (OPP) to enter the OPP operation page, and the related
parameters are described as follows.
No.
Parameter
Description
1
VON LEVEL=0.000V
Set the Von voltage value.
2
VON DELAY=0.01S
Set the Von voltage delay time.
After delay certain time, the DC
load starts to draw power.
3
RANGE=5A
Set the working current range.
4
START =0.1W
Set the initial power.
5
STEP =1W
Set the step power.
6
STEP DEL=1S
Set delay time of each step.
7
END =12W
Set the cutoff power.
8
OPP VOLT=7V
Set the OPP voltage.
9
MAX TRIP =6.5W
Upper limit of OPP value.

ITech IT8512A+ Specifications

General

Brand	ITech
Model	IT8512A+
Category	Test Equipment
Language	English