User manual

4-4 Ohms Measurements 2400 Series SourceMeter
®
User’s Manual
Selecting ohms measurement method
On power-up, auto ohms is the default method for the ohms function. Perform the
following steps to check and/or change the ohms measurement method:
1. Press CONFIG and then Ω to display the ohms configuration menu.
2. Using the EDIT keys, place the cursor (flashing menu item) on SOURCE
and press ENTER.
NOTE Cursor position indicates the presently selected ohms measurement
method. To retain this selection, use the EXIT key to back out of the
menu structure and skip the next two steps.
3. To change the measurement method, place the cursor on the alternate
selection (AUTO or MANUAL), and press ENTER.
4. Press EXIT to exit from the menu structure.
Ohms measurement procedure
Perform the following steps to perform auto ohms measurements.
NOTE The following procedure assumes that the SourceMeter is already con-
nected to the DUT as explained in Section 2, “Connections.”
Table 4-1
Auto ohms default test currents
Auto ohms
range
2400, 2400-LV, 2401,
and 2410
default test current
2420, 2425, 2430, and
2440
default test current
2Ω
20Ω
200Ω
2kΩ
20kΩ
200kΩ
2MΩ
20MΩ
200MΩ
-
100mA
10mA
1mA
100µA
10µA
1µA
1µA
100nA
1A
100mA
10mA
1mA
100µA
10µA
10µA
1µA
-