6482-901-01 Rev. A / August 2012 Return to Section Topics 3-9
Model 6482 Dual-Channel Picoammeter / Voltage Source Reference Manual Section 3: Basic Operation
The EDIT , , , and keys also enable the edit mode. They choose the last edited
source field channel.
When editing the source value, the source is updated immediately, allowing you to adjust
the source value while the output is on.
The source value cannot be changed while the Model 6482 is performing a sweep, which
occurs with the output ON and after the SWEEP key is pressed.
Perform the following steps to edit source values:
1. Press SRC1 or SRC2 to enter the edit mode for the specified channel. The flashing digit indi-
cates which value (Src1 or Src2) is presently selected for editing.
2. Use the RANGE and keys to select either the 10 V or 30 V range that will accommodate
the value you want to set. For best accuracy, use the lowest possible source range.
3. Enter the source value of your choice. There are two methods to edit the value: Value adjust
and numeric entry.
NOTE To clear the source value to 0 V, press the 0000 (MENU) key while in the edit source field.
• Value adjust: To adjust the value, use the EDITand keys to place the cursor at the
appropriate position, and use the EDIT and keys to increment or decrement the
value.
• Numeric entry: When the edit mode is entered, the cursor is located on the most
significant digit of the value. From this position, you can key in the value using the
number keys (0 through 9). After each number is keyed in, the cursor moves one position
to the right. You can use the EDITand keys to place the cursor on a digit to be
changed, and press the appropriate number key. The cursor does not have to be on the
polarity sign of the value to change polarity. If the 0000 (MENU) key is pressed, the
source value will be clear to 0 V.
4. To edit the source on the other channel, press the SRC1 or SRC2 key to select it, and then
repeat steps 2 and 3.
5. When finished editing source values, press the ENTER key or wait six seconds to exit from the
edit mode.
Step 3. Turn source outputs on.
Turn the voltage source outputs on by pressing the ON/OFF OUTPUT key. The blue OUTPUT
indicator will turn on to indicate that both channel outputs are on.
Step 4. Observe readings on the display.
Observe the current readings in the channel 1 (top left) or channel 2 (top right) display field as
appropriate. If in the MSR1 or MSR2 display mode, press the DISPLAY TOGGLE key to toggle
between channels, or press the CHANNEL SELECT key to toggle the displayed channel.
Step 5. Turn source output off.
When finished, turn both voltage source outputs off by pressing the ON/OFF OUTPUT key. The
blue OUTPUT indicator light will turn off.
Remote command measurement procedure
Basic measurement procedures can also be performed over a remote interface by sending
appropriate commands in the right sequence. The following paragraphs summarize the basic
commands and give a simple programming example.
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