Voltmeter And Ammeter Measurements; Ohms Measurements - Tektronix KEITHLEY SourceMeter 2606B Reference Manual

Model 2606B System SourceMeter® Instrument Reference Manual

Voltmeter and ammeter measurements

You can make voltmeter and ammeter measurements without using the MODE key, such as when
configuring measure-only tests over the remote interface.
To use the 2606B to measure voltage or current:
1. Select the source-measure functions:
▪
Voltmeter: Press the SRC key to select the current source and press the MEAS key to select
the voltage measurement function.
▪
Ammeter: Press the SRC key to select the voltage source and press the MEAS key to select
the current measurement function.
2. Set source and compliance levels. To edit the source level, use the procedure provided in
Select and set the source level
provided in
▪
Select the lowest source range and set the source level to zero.
▪
Set the compliance level to a value that is higher than the expected measurement.
When using the 2606B as a voltmeter, the voltage compliance limit must be set higher than
the voltage that is being measured. Failure to do this could result in excessive current flow
into the 2606B, incorrect measurements, and possible damage to the instrument.
3. Use the RANGE keys to select a fixed measurement range that accommodates the expected
reading. Use the lowest possible range for best accuracy. You can also select autorange, which
automatically sets the 2606B to the most sensitive range.
4. Connect the voltage or current to be measured. Make sure to use 2-wire connections from the
2606B to the device under test (DUT). Refer to
5. Press the OUTPUT ON/OFF control to turn the output on.
6. View the displayed reading (press the TRIG key if necessary).
7. When finished, press the OUTPUT ON/OFF control to turn the output off.

Ohms measurements

Resistance readings are calculated from the measured current and measured voltage as follows:
R = V/I
Where:
•
R is the calculated resistance
•
V is the measured voltage
•
I is the measured current
2606B-901-01 Rev. C November 2021
(on page 5-2); to edit the compliance level, use the procedure
Step 2: Set the compliance limit
Section 5: Sourcing and measuring
(on page 5-3):
DUT test connections
Step 1:
(on page 4-3).
5-15