OPERATION 
35 
You can check the setting of 
the GPE-4323 by using the 
CH2/CH3 key to toggle to 
CH3(③ appears on the LCD 
display). 
3. Press the Output key to turn
on the output. The Output
key will be lit.
GPE-3323: When the output 
current level exceeds 5.2A, the 
overload icon appears on the 
LCD display and CH3 operation 
mode switches from constant 
voltage to constant current. 
GPE-4323: When the output 
current level exceeds the setting 
value, the CV icon changes to the 
CC icon on the LCD display. 
This indicates that CH3 has 
switched from constant voltage 
to constant current.