Quick Start
Copyright © ITECH Electronic Co., Ltd. 20
To avoid burning out, be sure to confirm that power voltage matches with
supply voltage.
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.
Power Switch Introduction
User can press the power switch of IT8900 series electronic load directly to turn
on or turn off the instrument. The status of Powe switch are as follows.
Selftest steps
Normal selftest procedures:
1. Correctly connect the power line. Press Power key to start up.
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 0.0000A
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.
Model: IT89XX
Ver: 1.XX-1.XX
SN: XXXXXXXXXXXXXXXXXX
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.
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