Keithley 6485 User Manual

14-6 SCPI Reference Tables Model 6485 Picoammeter Instruction Manual
:AUTO? Query state of autorange. √
:ULIMit <NRf> Select autorange upper limit; -0.021 to
0.021 (amps).
2.1e-2
:ULIMit? Query upper limit for autorange.
:LLIMit <NRf> Select autorange lower limit; -0.021 to 0.021
(amps).
2.1e-9
:LLIMit? Query lower limit for autorange.
:AVERage Path to control the Digital Filter: 4
:TCONtrol <name> Select filter control; MOVing or REPeat. MOV
:TCONtrol? Query filter control.
:COUNt <n> Specify filter count; 2 to 100. 10
:COUNt? Query filter count.
:ADVanced Advanced filter:
:NTOLerance <n> Specify noise tolerance (in %); 0 to 105. 0
:NTOLerance? Query noise tolerance.
[:STATe] <b> Enable or disable advanced filter. OFF
[:STATe]? Query state of advanced filter.
[:STATe] <b> Enable or disable digital filter. OFF
[:STATe]? Query state of digital filter.
:MEDian Path to control median filter: 4
:RANK <NRf> Specify “n” for rank; 1 to 5 (rank = 2n+1). 1
:RANK? Query rank.
[:STATe] <b> Enable or disable median filter. OFF
[:STATe]? Query state of median filter.
Table 14-5
STATus command summary
Command Description
Default
parameter
Ref
Section
SCPI
:STATus (Note 1) 10 √
:MEASurement Measurement event registers:
[:EVENt]? Read the event register. (Note 2)
:ENABle <NDN> or <NRf> Program the enable register. (Note 3)
Table 14-4 (continued)
SENSe command summary
Command Description
Default
parameter
Ref.
Section
SCPI
Note: *RST default is ON and SYSTem:PRESet default is OFF.

Keithley 6485 Specifications

General

Model	Keithley 6485
Category	Picoammeter
Input Impedance	>10^14 Ohms
Voltage Burden	<200µV
Accuracy	0.4% of reading
Voltage Source Range	Not Applicable
Voltage Source Resolution	Not Applicable
Voltage Source Accuracy	Not Applicable
Interface	IEEE-488
Power Requirements	100V to 240V AC, 50/60Hz
Dimensions	89 mm high x 214 mm wide x 369 mm deep (3.5 in x 8.4 in x 14.5 in)