User manual

3-16 Basic Source-Measure Operation 2400 Series SourceMeter

User’s Manual

is performed within six seconds, the edit mode times out and is

cancelled. To return to the edit mode, press EDIT again. While in the edit

mode, the EDIT key toggles between the source value and the

compliance value.

The SOURCE and EDIT arrow keys also enable the edit mode. They

choose the last selected field.

When editing the source value, the source is updated immediately, allow-

ing you to adjust the source value while the output is on.

The source value cannot be changed while the SourceMeter is perform-

ing a sweep. This occurs with Output ON and either the SWEEP key is

pressed, Offset Compensation is enabled under Ohms, or OFF-COMP-

OHMS, VOLT-COEFF, or VAR-ALPHA functions are enabled.

When editing the compliance value, compliance is not updated until

ENTER is pressed or the edit mode is allowed to time out.

EDIT always goes to the source field first, except while sweeping, in

which case it goes into the compliance field.

Source and compliance values cannot be edited in AUTO OHMS mode.

MANUAL OHMS allows you to edit source and compliance. See

Section 4.

Perform the following steps to edit the source and compliance values:

1. Press EDIT to enter the edit mode. The flashing digit indicates which read-

ing (source or compliance) is presently selected for editing. If you wish to

edit the other field, press EDIT again.

2. Use the RANGE arrow keys to select a range that will accommodate the

value you want to set. (See

Section 7 for range information.) For best accu-

racy, use the lowest possible source range.

3. Enter the desired source or compliance value. There are two methods to

edit the value: value adjust and numeric entry.

NOTE To clear the source value to 0V or 0A, press the MENU key while in the

edit source field.

• Value adjust — To adjust the value, use the EDIT cursor keys to place

the cursor at the appropriate position, and use the SOURCE arrow

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 num

ber is keyed in, the cursor moves one position to the right. If desired,

you can use the EDIT cursor keys to place the cursor on a digit to be

changed, and press the appropriate number key. The cursor does not