Keithley 6485 User Manual

Model 6487 voltage source operation ...................................................... 3-12
Configuring the voltage source .......
................................................... 3-12
Sourcing voltage ................................................................................ 3-13
Compliance indication ........................................................................ 3-13
Open interlock indication ................................................................... 3-14
SCPI commands — voltage source .......
............................................ 3-14
Programming example — voltage ..................................................... 3-14
4 Range, Units, Digits, Rate, and Filters
Range, units, and digits .............................................................................. 4-2
Range .................................................................................................. 4-2
Units ..................................................................................................... 4-3
Digits .................................................................................................... 4-3
SCPI programming — range and digits ............................................... 4-3
Rate ............................................................................................................ 4-4
Model 6487 damping .................................................................................. 4-4
Filters ......................................................................................................... 4-4
Median filter ......................................................................................... 4-5
Digital filter .......................................................................................... 4-5
Filter control ......................................................................................... 4-6
5 Relative, mX+b, m/X+b (reciprocal), and log
Relative ...................................................................................................... 5-2
Front panel relative .............................................................................. 5-2
SCPI programming — relative ............................................................ 5-2
mX+b, m/X+b (reciprocal), and Logarithmic .
.............................................. 5-3
mX+b and m/X+b ................................................................................. 5-3
Logarithmic .......................................................................................... 5-3
Configuring math functions .................................................................. 5-4
SCPI programming — mX+b, m/X+b, and log ..................................... 5-4
6 Buffer and Sweeps
Buffer operations ........................................................................................ 6-2
Store .................................................................................................... 6-2
Recall ................................................................................................... 6-2
Buffer timestamp .................................................................................. 6-3
Clear .................................................................................................... 6-3
Buffer statistics .................................................................................... 6-3
SCPI programming — buffer ............................................................... 6-4
Programming example ......................................................................... 6-4
Model 6487 voltage sweeps ....................................................................... 6-5
Front panel sweeps ............................................................................. 6-5
SCPI programming — sweeps ............................................................ 6-5
Programming example ......................................................................... 6-6

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)