GW Instek GDM-8261A - Analog Filter Settings

GDM-8261A User Manual
82
Analog Filter Settings
Background
The analog filter is a single order low pass filter that can
be turned on to attenuate the AC components from a DC
signal. This will effectively eliminate the AC component
from influencing the automatic range settings.
For example, the analog filter can be turned on to
attenuate the AC components of a DC signal that has a
superimposed AC voltage with a magnitude that is higher
than the measurable range of the DC signal.
The Analog filter setting is off by default. The cutoff
frequency for the analog filter is at 500Hz (-3dB).
Note
The analog filter can only be used with DCV and DCI
measurements.
Panel operation
1. Press the Shift key followed by
the 2nd (Menu) key. The Level 1
menu appears.
/ EXITSHIFT
2ND
MENU
2. Press the right key twice until
Set ADC appears.
TRIG
TRIG
3. Press down once to enter the
Set ADC menu on level 2.
4. Press the left key until the
A-Filter setting is shown.
HOLD
5. Press the Down key to turn the
A-Filter on or off.
1st display
Shows the A-FILT setting
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