Keithley 2500 User Manual

Models 2500 and 2502 User’s Manual SCPI Command Reference 17-55
Select auto range
AUTO <b>
[:SENSe[1]]:CURRent[:DC]:RANGe:AUTO <b> Control auto ranging for channel 1
:SENSe2:CURRent[:DC]:RANGe:AUTO <b> Control auto ranging for channel 2
Parameters <b> = 0 or OFF Disable auto range
1 or ON Enable auto range
Query :AUTO? Query state of auto range
Description This command is used to control auto ranging. With auto ranging
enabled, the instrument automatically goes to the most sensitive range to
perform the measurement.
When this command is used to disable auto range, the instrument
remains at the automatically selected range. When a range is manually
selected, auto range is disabled. See the previous command.
LLIMit <n>
[:SENSe[1]]:CURRent[:DC]:RANGe:AUTO:LLIMit <n> Set auto ranging lower limit for channel 1
:SENSe2:CURRent[:DC]:RANGe:AUTO:LLIMit <n> Set auto ranging lower limit for channel 2
Parameters <n> = -21e-3 to 21e-3 Lower limit
DEFault 2e-9
MINimum 0
MAXimum 20e-3
Query :LLIMit? Query auto range lower limit
Description The lower limit programmed by these commands for both channels
must be less than or equal to the upper limit. If the lower limit is equal to
the upper limit, auto ranging is effectively disabled. See below. When
autoranging is disabled, you can manually program the unit for any
range above the lower limit.
ULIMit <n>
[:SENSe[1]]:CURRent[:DC]:RANGe:AUTO:ULIMit <n> Set auto ranging upper limit for channel 1
:SENSe2:CURRent[:DC]:RANGe:AUTO:ULIMit <n> Set auto ranging upper limit for channel 2
Parameters <n> = -21e-3 to 21e-3 Upper limit
DEFault 20e-3
MINimum 0
MAXimum 20e-3
Query :ULIMit? Query auto range upper limit
Description The upper limit programmed by these commands for both channels
must be greater than or equal to the lower limit. If the upper limit is
equal to the lower limit, auto range is disabled. When auto ranging is
disabled, you can manually program the unit for any range below the
upper limit.
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Keithley 2500 Specifications

General

Brand	Keithley
Model	2500
Category	Measuring Instruments
Language	English