Keithley 6485 User Manual

D-6 DDC Emulation Commands Model 6485 Picoammeter Instruction Manual
Zero
Correct
N0 Zero Correct disabled
SYSTem:ZCORrect:STATe OFF
NEW X
N1 Zero Correct enabled
SYSTem:ZCORrect:ACQuire
SYSTem:ZCORrect:STATe ON
NEW
Digital
Filter
P0 Filter off X
P1 Filter off
Pn Repeat Filter on, where filter size “n” = 2 to 100 B
Data Store
(Buffer)
Q0 Conversion rate
See
TRACe,
ARM, and
TRIGger
sub-
systems
Q1 One reading per second
Q2 One reading every 10 seconds
Q3 One reading per minute
Q4 One reading every 10 minutes
Q5 One reading per hour
Q6 Trigger mode
Q7 Disabled X
Range
R0 Auto
[SENSe[1]][:CUR-
Rent:[DC]]:RANGe[:UPPer]:AUTO ON
X
R1 2nA
[SENSe[1]][:CUR-
Rent:[DC]]:RANGe[:UPPer]:2e-9
R2 20nA
[SENSe[1]][:CUR-
Rent:[DC]]:RANGe[:UPPer]:20e-9
R3 200nA
[SENSe[1]][:CUR-
Rent:[DC]]:RANGe[:UPPer]:200e-9
R4 2µA
[SENSe[1]][:CUR-
Rent:[DC]]:RANGe[:UPPer]:2e-6
R5 20µA
[SENSe[1]][:CUR-
Rent:[DC]]:RANGe[:UPPer]:20e-6
R6 200µA
[SENSe[1]][:CUR-
Rent:[DC]]:RANGe[:UPPer]:200e-6
Table D-1 (continued)
Device dependent command summary
Mode Command
Description
Equivalent SCPI commands
Note Default

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)