User Manual

2400 Series SourceMeter

User’s Manual Ohms Measurements 4-11

Ohms source readback

NOTE For the Model 2430 Pulse Mode, ohms source readback cannot be

enabled.

With ohms source readback enabled, the instrument measures the actual source

value instead of the programmed value used for ohms measurements and then

uses that measured value for reading calculations. Normally, ohms source read-

back should be left enabled for optimum ohms measurement accuracy because

SourceMeter measurement accuracy is better than source programming accu-

racy. (See specifications in Appendix A.) However, disabling source readback will

allow you to make valid ohms measurements with the source in compliance. See

Section 6, “Source I measure I and source V measure V,” for more details.

Ohms source readback selection

Use the following procedure to enable or disable ohms source readback:

1. Press CONFIG then Ω.

2. Select SRC RDBK, then press ENTER.

3. Select DISABLE or ENABLE as desired, then press ENTER.

4. Press EXIT to return to normal display.

NOTE Readings in the compliance field will be invalid with source readback dis-

abled.