Keithley 2002, Getting Started Manual

Page: 42 / 95

Configuring filters
Each measurement function, except FREQ, has its own filter configuration. The procedure to
configure a filter is summarized as follows:
1. Select the measurement function.
2. Press CONFIG and then FILTER to display the following filter menu options:
AUTO: Selects auto filtering.
AVERAGING: Selects the averaging filter type and prompts you to enter the number of
readings to average (the “stack” size).
ADVANCED: Selects the advanced filter type and prompts you to enter the number of
readings to average (the “stack” size). After entering the stack size, you are then prompt-
ed to enter the noise tolerance level (0 to 100%).
AVERAGING-MODE: This item is used to select the filter mode: MOVING or RE-
PEAT.
3. Use the menu items to configure the filter. A menu item is selected by placing the cursor
(using
and keys) on it and pressing ENTER. Parameter values are changed using
the cursor keys and the RANGE keys, and then pressing ENTER. See MENUS if you
need more information to navigate through the menu structure.
NOTE The filter configuration menus can also be accessed from the configure function
menus.
Value displayed
with filtering
Response with the noise
window turned “on” shifts
when the input signal moves
beyond the specified range
Response with
no noise window
Limits of the
user-specified
noise window
Input signal
Figure 10
Filter response/noise
window
Measurement Options 2-17