3310F Series Operation Manual 61
4.4.3.2.2. Pressing the LEVEL key (12) LED once will illuminate, Select LEVEL Hi,
Adjusted by the rotary knob and arrow key (21) can be read from the lower
Display during Setting 4.0000V.
4.4.3.3. Pressing the "Preset" Key (13) LED once will cause the button to off, Leave setting
Mode.
4.4.3.4. Pressing the “LOAD “Key (9) LOAD button lit (Load on), Pressing the "LEVEL"
Key (12), LED Once will illuminate, Select is “LEVEL Hi”
4.4.3.5. Pressing the "LEVEL" key (12), LED Once will off, Select is “LEVEL Lo”