Opp Test Function - ITech IT8300 Series User Manual

2. Press [Shift] + . (Trigger) key to start OCP test. If within range, PASS the
test and the board will display as follows:
9.99V
1W
If not, there is FAULT and the board will display as follows:
9.99V
1W
3. End test. Press [Esc] to return to setting screen.

3.12 OPP test function

The IT8300 series electronic load is provided with overpower protection test
function (OPP). Under OPP test mode, when input voltage reached Von value,
delay for a while for the electronic load to latch. Ascend value by step value at
regular interval. At the same time, check the load input voltage and judge
whether it is higher than standard voltage value. If higher, it indicates that OPP
does not occur. Repeat power stepping operation till the load operates to the
cutoff power. At the same time, check whether the cutoff power value is within
target scope. If yes, PASS the test, otherwise FAULT. If lower, it indicates that
OPP does occur. Check whether the existing power value is within target scope
again. If yes, PASS the test, otherwise FAULT.
Operating steps:
1. Press [Shift] + [CW] (OPP) keys to enter OPP test function setting screen:
Run
Recall
OPP
TEST
Edit
Save OCP File=1 (1-5)
0.5A
5.1A PASS
0.5A
5.1A FAULT
Note
If the set OCP voltage value is higher than the power voltage value, the OCP will fail to
operate and the board will display as follows:
9.99V 0.9A
1W 0.1A FAULT
OPP TEST
OPP TEST
Recall OPP File=1
OPP TEST
1:Voltage on level=0.00V
2:Voltage on Delay=0.00S
3:Current Range=0.0A
4:Start Power=0W
5:Step Power=0W
6:Step Delay=0.00S
7:End Power=0.0A
8:OPP Voltage=0.00V
9:Max Trip Power =0W
Copyright © ITECH Electronics Co., Ltd.
value).
Save OCP test documents.
STOP
STOP
STOP
Operate OPP test documents.
Recall OPP test documents (1-5).
Set Von voltage value.
Set Von voltage delay time.
Set current range.
Set initial power value.
Set step power value.
Set step delay time.
Set cutoff power value.
Set OPP value.
Set overpower range (maximum
Function and Features
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