Keithley 2750 - Page 161

4-16 Range, Digits, Rate, Bandwidth, and Filter Model 2750 Multimeter/Switch System User’s Manual
Figure 4-2
Moving and repeating filters
Filter example
Filter Type — Moving
Filter Window = 0.01% of range
Filter Count = 10
Filter State = On
Ten readings fill the stack to yield a filtered reading. Now assume the next reading (which
is the 11
th
) is outside the window. A reading will be processed (displayed); however, the
stack will be loaded with that same reading. Each subsequent valid reading will then dis-
place one of the loaded readings in the stack. The FILT annunciator will flash until 10 new
readings fill the stack.
Conversion #10
#9
#8
#7
#6
#5
#4
#3
#2
#1
Conversion
Average
Reading
#1
Conversion #12
#11
#10
#9
#8
#7
#6
#5
#4
#3
Conversion
Average
Reading
#3
Conversion #11
#10
#9
#8
#7
#6
#5
#4
#3
#2
Conversion
Average
Reading
#2
A. Type - Moving Average, Readings = 10
Conversion #10
#9
#8
#7
#6
#5
#4
#3
#2
#1
Conversion
Average
Reading
#1
Conversion #20
#19
#18
#17
#16
#15
#14
#13
#12
#11
Conversion
Average
Reading
#2
Conversion #30
#29
#28
#27
#26
#25
#24
#23
#22
#21
Conversion
Average
Reading
#3
B. Type - Repeating, Readings = 10
2750-900-01.book Page 16 Wednesday, August 3, 2011 7:56 AM