User manual

18-66 SCPI Command Reference 2400 Series SourceMeter
®
User’s Manual
ULIMit <n>
[:SENSe[1]]:CURRent[:DC]:RANGe:AUTO:ULIMit? Query auto ranging upper limit for amps
[:SENSe[1]]:VOLTage[:DC]:RANGe:AUTO:ULIMit? Query auto ranging upper limit for volts
[:SENSe[1]]:RESistance:RANGe:AUTO:ULIMit <n> Set auto ranging upper limit for ohms
Parameters <n> = -2.1e8 to 2.1e8 Ohms upper limit (2400 and 2410)
-2.1e7 to 2.1e7 Ohms upper limit (2420, 2425,
2430, and 2440)
Query :ULIMit? Query auto range upper limit
Description Auto range upper limits are intended primarily for SYST:RCM MULT
support. (See
“SYSTem subsystem,” page 18-103.) For voltage and
current, the upper limit is controlled by the compliance range and,
therefore, is available only as a query. When autoranging is disabled,
you can manually program the unit for any range above the upper
limit (ohms only).
Current range holdoff
HOLDoff <b>
HOLDoff:DELay <NRf>
[:SENSe[1]]:CURRent[:DC]:RANGe:HOLDoff <b> Enable/disable current range holdoff
[:SENSe[1]]:CURRent[:DC]:RANGe:HOLDoff:DELay <NRf> Set holdoff delay
Parameters <b> = Enable (ON) or disable (OFF)
<NRf> = Delay in seconds (0 to 999.9999)
Query HOLDoff? Query holdoff state
DELay? Query holdoff delay
Description Current range holdoff adds the ability to speed up low-current mea-
surements when sourcing voltage and measurement current. This
feature is only available when doing source memory sweeps. It will
momentarily set the measure range to the compliance range to over
-
come the effects of capacitance by charging any capacitance on the
higher compliance range, but return to the lower measure range to
obtain a good low current measurement. This avoids being limited by
range compliance, which would require either a longer delay time or
having to take the current measurement on a higher current range.
This feature is available only by remote, but parameters are saved
for each source memory location.