Keithley 6430, Instruction Manual

Page: 154 / 558

6-16 Range, Digits, Speed, and Filters
Filter control
When filtering is being applied to the input signal, the FILT annunciator will be on. When
Auto Filter is enabled, the FILT annunciator will turn on to indicate that the Auto Filter config-
uration is being applied.
The FILTER key is used to control filtering. Pressing FILTER turns on the FILT annunciator
to indicate that the filter configuration is being applied to the input. Pressing FILTER a second
time turns the FILT annunciator off to indicate that filtering is turned off.
Remote fi lter programming
Filter commands
Table 6-8 summarizes filter commands. See Section 17 for more details.
NOTE
When Auto Filter is enabled, the filter configuration cannot be changed. Therefore,
the commands in Table 6-8 for the Repeat Filter, Median Filter and Moving Filter
are no-operations with Auto Filter on.
Table 6-8
Filter commands
Commands Description
for Auto Filter:
[:SENSe]:AVERage:AUTO <state>
for Repeat Filter:
[:SENSe]:AVERage:REPeat:COUNt <n>
[:SENSe]:AVERage:REPeat[:STATe] <state>
for Median Filter:
[:SENSe]:MEDian:RANK <NRf>
[:SENSe]:MEDian[:STATe] <state>
for Moving Filter:
[:SENSe]:AVERage:COUNt <n>
[:SENSe]:AVERage[:STATe] <state>
[:SENSe]:AVERage:ADVanced:NTOLerance <NRf>
[:SENSe]:AVERage:ADVanced[:STATe] <state>
Enable/disable Auto Filter (state = ON or OFF).
Set Repeat Filter count (n = count, 1 to 100).
Enable/disable Repeat Filter (state = ON or OFF).
Set Median Filter rank (NRf = rank, 0 to 5).
Enable/disable Median Filter (state = ON or OFF).
Set Moving Filter count (n = count, 1 to 100).
Enable/disable Moving Filter (state = ON or OFF).
Set Advanced Filter noise window in % (NRf = noise
window, 0 to 105).
Enable/disable Advanced Filter (state = ON or OFF).