2
The Front Panel at a Glance
1  8V/20A range selection key (E3633A)
    25V/7A range selection key (E3634A)
2  20V/10A range selection key (E3633A)
    50V/4A range selection key (E3634A)
3  Overvoltage protection key
4  Overcurrent protection key
5  Display limit key
6  Recall operating state key
  7  Store operating state/Local key
 8  Error/Calibrate key
 9  I/O Configuration/Secure key
10  Output On/Off key
11  Control knob
12  Resolution selection keys
13  Voltage/current adjust selection key