Function
and Features
Copyright © ITECH Electronic Co., Ltd.
37
If not, there is FAULT and the board will display as follows:
9.996V 0.0007A
0.01W 48.6W FAULT STOP
3. End test. Press
[ESC]
to return to setting screen. Press
[ESC]
again to exit.
Note
If the set OPP voltage value is higher than the power voltage value, the OPP will fail to
operate and the board will display as follows:
9.996V 0.0007A
0.01W 0.1W FAULT STOP
3.12 Battery discharge test function
In the IT8900 series electronic load, constant current mode is applied for
discharge test with programmatic setting of stop voltage/capacity/discharging
time If stop voltage is set as the stop condition, the system determines whether
the battery is about to reach the set threshold value or unsafe status when the
battery voltage is low, and if yes, an automatic stop will be activated. During test,
the operator can observe voltage, discharging time and discharged capacity of
battery. Battery discharge test is a necessary step before battery replacement
for it can reflect reliability and remaining life of battery.
Press
[Shift]
+ 5(Battery) keys to enter function testing screen of battery
discharge test.
STOP
CONDITION
Voltage
STOP Condition
Stop Voltage
Set stop voltage.
Capability
STOP Condition
Stop Capability
Set battery stop capacity.
Timer
STOP Condition
Stop Timer
Set discharge time.
Operation method:
1. Press
[On/Off]
key to cut off load input status. Connect the battery to be
tested. Under CC mode, press
[Shift]
+ 5(Battery) keys to enter battery
discharge function menu and select one of the three methods for test based
on actual requirements.
2. Set discharge stopping conditions:
Type I: Press
[Shift]
+ 5(Battery) keys and select Capability. Press
[Enter]
key and the VFD displays Stop Capability =Ah(0~999.999Ah).
Set battery stop capacity. Press
[Enter]
key. When set battery capacity
is reached, the load input status will automatically be OFF.
Type II: Press
[Shift]
+ 5(Battery) keys and select Voltage. Press
[Enter]
key and the VFD displays Stop Voltage=V. Set stop voltage and
press
[Enter]
key to start discharge test. When the battery voltage
drops to stop voltage, the load input status will automatically be OFF.
Type III: Press
[Shift]
+ 5(Battery) key and select Timer. Press
[Enter]
key and the VFD displays Stop Timer=S (0~99999S). Set discharge
time. When the set stop time is reached, the load input status will
