Keithley 6485 User Manual

4-12 Range, Units, Digits, Rate, and Filters Model 6485 Picoammeter Instruction Manual
SCPI programming — filters
Programming example
The following command sequence configures and enables both filters:
' Median Filter:
MED:RANK 5 ' Set rank to 5.
MED ON ' Enable median filter.
' Digital Filter:
AVER:COUN 20 ' Set filter count to 20.
AVER:TCON MOV ' Select moving filter.
AVER:ADV:NTOL 30 ' Set noise tolerance to 30%.
AVER:ADV ON ' Enable advanced filter.
AVER ON ' Enable digital filter.
Table 4-5
SCPI commands — filters
Commands Description Default
For median filter:
[:SENSe[1]]
:MEDian
:RANK <n>
[:STATe] <b>
For digital filter:
[:SENSe[1]]
:AVERage
:TCONtrol <name>
:COUNt <n>
:ADVanced
:NTOLerance <n>
[:STATe] <b>
[:STATe] <b>
SENSe Subsystem:
Median Filter:
Specify filter rank; 1 to 5.
Enable or disable median filter.
SENSe Subsystem:
Digital Filter:
Select filter control; MOVing or REPeat.
Specify filter count; 1 to 100.
Advanced filter:
Specify noise tolerance (in %); 0 to 105.
Enable or disable advanced filter.
Enable or disable digital filter.
1
OFF
REP
10
0
OFF
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)