SETUP 
29 
Setting Voltage Lock from Front Panel 
The lock function of the GPE-1326/ 2323/ 3323/ 
4323 series can be used when you need to keep the 
output voltage constant to avoid the load from 
being damaged due to inadvertent operation. The 
voltage lock takes the present channel settings as 
the reference levels. The voltage lock function only 
applies to CH1 & CH2.  
Press the LOCK key (for 
more than 2 seconds) to lock 
the voltage knob operation 
for CH1 & CH2 in the front 
panel. The Lock icon will 
become lit.  
To unlock, press the LOCK key for more than 2 
seconds. The Lock icon will then turn off and the 
output turns off as well. 
 The OUTPUT key is not
affected by the lock
operation.
 It is normal for the
output voltage to have a
fluctuation of around
20mV after the voltage
settings are locked.
Set the output state at startup 
Through the following steps, you can set the 
output state of the GPE-1326/2323/3323/4323 
series at its next startup. There are two choices, ON 
and OFF available for selection.