Keithley 6487 Reference Manual

4-12 Range, Units, Digits, Rate, and Filters Model 6487 Reference 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 ON ' Enable digital filter.
Table 4-6
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>
[: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: 2 to 100.
Enable or disable digital filter.
1
OFF
MOV
10
OFF

Keithley 6487 Specifications

General

Type	Picoammeter/Voltage Source
Current Measurement Range	20 fA to 20 mA
Interfaces	GPIB, RS-232
Voltage Burden	< 200 µV
Input Impedance	>10^14 Ω
Power	100 V / 120 V / 220 V / 240 V
Basic Current Measurement Accuracy	0.4%