Keithley 2461 Reference Manual page 155

Section 2: General operation
You need to set the measure function before the measure range can be set.
If you set the measure range manually for a function, automatic measure range is automatically
turned off for that function and remains off until you re-enable it.
Using the front panel:
1. Press FUNCTION and select the function.
2. On the measure area of the Home screen, select the button next to Range. The Select Range
dialog box is displayed.
3. Select Auto. The actual range is displayed to the left of the button.
Using a remote interface:
•
SCPI commands: Refer to
•
TSP commands: Refer to
Selecting low limits when automatic measurement range is used
You can set the low limit for the measurement range that is selected when the measurement range is
set automatically.
Choose the lower limits for the automatic measurement range using the front panel
Using the front panel:
1. Press FUNCTION and select the measurement function.
2. Press MENU.
3. Under Measure, select Settings. The MEASURE SETTINGS screen is displayed.
4. Select the button next to Auto Range Low Limit.
5. Select the low limit. The MEASURE SETTINGS screen is displayed again.
6. Press HOME to return to the Home screen.
Using a remote interface:
SCPI commands: Refer to
TSP commands: Refer to
Determining upper limits when automatic measurement range is used
For resistance measurements, you can define the upper limit that can be selected when the
measurement range is set automatically. For voltage and current measurements, you can retrieve the
value of the upper limit.
Using a remote interface:
SCPI commands: Refer to
TSP commands: Refer to
2-128
Model 2461 Interactive SourceMeter® Instrument Reference Manual
[:SENSe[1]]:<function>:RANGe:AUTO
smu.measure.autorange
[:SENSe[1]]:<function>:RANGe:AUTO:LLIMit
smu.measure.autorangelow
[:SENSe[1]]:<function>:RANGe:AUTO:ULIMit
smu.measure.autorangehigh
(on page 6-62).
(on page 8-131).
(on page 6-63).
(on page 8-133).
(on page 6-64).
(on page 8-132).
2461-901-01 A/November 2015