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Copyright ©ITECH Electronic Co., Ltd.
10
Before operation, please confirm that you have fully understood the safety
instructions.
⚫
IT8912E electronic load supports 110V or 220V AC input methods. Before
powering on, be sure to check that the AC input switch status matches with
the supply voltage. Otherwise, it may damage the electronic load.
⚫
Be sure to connect the main power socket to the power outlet of protective
grounding. Do not use terminal board without protective grounding. Before
operation, be sure that the electronic load is well grounded.
⚫
To avoid burning out, pay attention to marks of positive and negative
polarities before wiring.
Selftest steps
Normal selftest procedures:
1. Correctly connect the power line. Press
Power
key to start up.The VFD
screen of electronic load displays software version number "
BOIS Ver 1.10
".
2.
After approximately 1s, the system is under selftest and the VFD display
shows “
System Selftest….
”
3. After selftest, the VFD display information below.
0.0000V 0.000A
0.00W CC=0.000A
Information description:
⚫
The first line displays actual input voltage and current values.
⚫
The second line displays setting values of actual power value and
current (voltage, power and resistance).
4. Press
(Shift)+7(Info), the electronic load VFD screen displays related
information of the product. Press
key to switch display of product
model, product serial number and software version number.
IT89XX Ver--1.XX-1.XX
SN1:XXXXXXXXXXXXX
Exception handling
If the electronic load cannot start normally, please check and take measures by
reference to steps below.
1. Check whether the power line is correctly connected and confirm whether
the electronic load is powered.
Correct wiring of power line => 2
Incorrect wiring of power line => Re-connect the power line and check whether
the exception is removed.
2. Check whether the power in On. Power key is under
On status.
