Response Time; Operation Consideration - Keithley 6485 Instruction Manual

4-10 Range, Units, Digits, Rate, and Filters
Figure 4-3
Digital filter types; moving and repeating
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A. Class - Average, Readings = 10, Type - Moving
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B. Class - Average, Readings = 10, Type - Repeating

Response time

The various filter parameters have the following effects on the time needed to display,
store, or output a filtered reading:
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Operation consideration

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Filter classification: The time to the first reading is the same for both classifica-
tions, but thereafter, the moving mode yields a faster reading than repeating mode.
Also, advanced has a faster response to changes in the input signal than averaging.
Number of reading conversions: Speed and noise are tradeoffs.
Noise window: For the advanced filter, a tradeoff of speed, noise, and response to input
signal changes.
The digital filter operation will reset (start over) whenever the zero check operation
is performed or the range is changed.
Model 6485 Picoammeter Instruction Manual
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