Specifications

68xxA: Programming DC Output Voltage
Question: How do I program a DC voltage from an AC power source?
Answer: DC voltage can only be programmed from AC source models 6811A, 6811B, 6812A, 6812B, 6813A,
6813B, 6841A and 6842A. To program a DC voltage perform the following steps using the front panel keypad.
Press [ Shift ] key then [ Output ] key. Display will read "OUTP:COUP AC".
Press down triangle on function keypad once, display reads "*RST". press [ Enter ]. AC power source is now in a
known factory default power on state.
The right side of the front panel display should now be: METER This means the metering circuit will readback both
AC AC+DC and DC components of the AC source output signal. OUTPUT This signifies the output of the AC
source will only AC contain an AC component.
Press [ Shift ] [ Output ] key, display reads "OUTP:COUP AC".
Press down arrow on the Entry keypad until the display reads "OUPT:COUP DC", press [ Enter ].
The right side of the front panel display under the OUTPUT annunciator should now read: OUTPUT This signifies
the output of the AC source will contain AC+DC both an AC and DC component.
Press [ VOLT ] display reads "VOLT 0.00" Note: VOLT determines magnitude of AC rms output voltage
programmed, OFFSET determines magnitude of DC output voltage programmed. If no AC component is desired
leave VOLT set to 0.00.
Press down or up triangle on function keypad until display reads "OFFSET 0.00".
Enter desired DC output voltage from entry keypad, ie: if 25 Vdc is desired press [ 2 ] [ 5 ]. Display now reads
"OFFSET 25", press [ Enter ].
Press [ Output On/Off ] key, output terminals will now have 25 Vdc present.
The DC voltage on the phase 1 output terminal can be programmed either positive or negative with respect to the
COM output terminal. To program a negative DC output voltage press [ Shift ] then the decimal key on the entry
keypad. Note the minus sign is the shifted decimal key.