User manual

SETUP
21
Output On/Off Panel operation
Pressing the Output key turns on all CH 1/2/3 outputs. The key LED also turns on. Pressing the Output key again turns the output and the key LED off.
Automatic output off
Any of the following actions during output on automatically turns it off. They might involve sudden and harmful change in the output level.
• Change the operation mode between
independent / tracking series / tracking parallel
• Recalling other setups from the memory • Storing the setup into the memory
Beep On/Off Panel operation
By default, the beep sound is enabled. To turn off the beep, press the CH2 key for 2 seconds.
A beep comes out and the beep setting will be turned off. To enable the beep, press the CH2 key again for 2 seconds.
List of beep
The following operations beep when the beep setting is on.
• Power on • INDEP – SER – PARA
mode switching
• Setup save/recall • Voltage/current knob
fine/coarse switching
• Output on/off • Panel lock/unlock • CH1/CH2 output
level knob switching
• Voltage/current level
reaching minimum (zero) level
GPD-3303 Series User Manual
22 Front Panel Lock Panel operation
Press the LOCK key to lock the front panel key operation. The key LED
turns on. To unlock, press the LOCK key for 2 seconds. The key LED also turns off.
Note
The OUTPUT key is not affected by the lock operation.