/ Programmable DC Electronic Load - User Manual
Fig. 7-3-1-1 Battery Discharge Settings
As the battery discharges, its internal resistance increases and output voltage decreases.
Therefore, users can use a lower current for discharge when the battery voltage decreases.
Therefore, users can set the cutoff enable to 3.
Set discharge current 1 to 3A and cutoff voltage 1 to 17V;
Set discharge current 2 to 1.5A and cutoff voltage 2 to 16V;
Set discharge current 3 to 0.5A and cutoff voltage 3 to 15V.
Discharge current 1 > Discharge current 2 > Discharge current 3; Cutoff voltage 1 > Cutoff
voltage 3 > Cutoff voltage 3.
With these settings, when detecting an input voltage below 17V, the instrument will discharge
at 1.5A; when detecting an input voltage below 16V, it will discharge at 0.5A; and when detecting
an input voltage below 15V, it will automatically deactivate the channel and terminate the
measurement.
8. Short Circuit Test Operation (SHORT)
The load can simulate a short-circuit circuit at the input terminal.
Press the ON button to activate the channel, and the two input terminals of the instrument
will be short-circuited.
During the short circuit test, the actual current consumed by the load short circuit depends on
the maximum output of the power supply. The short circuit current should not exceed the device's
current limit, otherwise, it will trigger over-current protection.
Basic button operations and interface switching and display are the same as those in constant
current mode (CC).
Current, voltage, and power limits can be edited.
9. Protection/Prompt Feature
The load provides over current protection, over voltage protection, over power protection, over
temperature protection and reverse polarity prompt.
When in a protective or prompting state, the buttons will be locked. Users need to press the [ENT]
button briefly to unlock the buttons.
Equipment Protection/Prompt Descriptions:
Protection
Type
Type Description
Protection/Prompt Reasons
OC
Over Current Protection
Input current exceeds the current limit (detected
for over 20ms)
OV
Over Voltage Protection
Input voltage exceeds the voltage limit (detected
for over 20ms)
