User Manual

2400 Series SourceMeter

User’s Manual Ohms Measurements 4-5

WARNING To prevent electric shock, do not make or break connections to

the SourceMeter with the output on. If on, press the ON/OFF

OUTPUT key to turn the output off.

1. Select ohms measurement function by pressing MEAS Ω.

2. Select the ohms measurement method (AUTO or MANUAL).

NOTE Use the manual ohms mode and the V-source method when high-speed

settling is required.

3. For manual ohms, configure source.

For manual ohms, you can Source I or Source V at the user-programmed

output level. The lowest allowable compliance limit is based on the load

and the source value. For example, if sourcing 1V to a 1kΩ resistor, the

lowest allowable current compliance is 1mA (1V/1kΩ = 1mA). Setting a limit

lower than 1mA will place the source in compliance.

4. Select measurement range.

Use the RANGE keys to select a range appropriate for the expected ohms

reading, or use autorange by pressing AUTO. When using manual ranging,

selecting the most sensitive (lowest) range provides the best accuracy.

Autorange automatically goes to the most sensitive range.

5. Turn output on.

Turn the output on by pressing the ON/OFF OUTPUT key. The OUTPUT

indicator will turn on to indicate the output is on.

6. Observe reading on display.

The SourceMeter will go into compliance if you exceed the maximum ohms

measurement range.

7. Turn output off.

When finished, turn the output off by pressing the ON/OFF OUTPUT key.

The OUTPUT indicator light will turn off.