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GFK-0825F Chapter 5 Station Configuration 5-59
5
Configure Filtering
Next, select the filtering delay to eliminate noise due to the AC power lines. Filtering increases the
response time to changes in a channel.
The choices for filtering are:
A. None : The module returns the most recent sample of the input.
B. 10 ms: The module averages the most recent 8 samples of the input.
B. 20 ms: The module averages the most recent 16 samples of the input.
The module will perform filtering on all inputs on the module that are configured as "active".
20MS
S:2 FILTERING
< > tgl entr
1. If you want to change the displayed selection, press F3 (tgl).
2. Use the F4 (entr) key to save the selection.
3. Press F2 ( > ) to go to the next screen.
Configure the Line Frequency
Next, set the line frequency for the module. Select 50 or 60 Hz.
Disturbances due to AC noise cause variations around the desired DC level. The amplitude of
these variations can be reduced by configuring the rate at which the module scans inputs for the
operating frequency. If the line frequency is configured at 60 Hz, the module scans each input
channel every 1.04 milliseconds. If the line frequency is configured at 50 Hz, the module scans
each input channel every 1.25 mS.
S:2 LINE FREQ
60 HZ
< > tgl entr
1. If you want to change the displayed selection, press F3 (tgl).
2. Use the F4 (entr) key to save the selection.
3. Press F2 ( > ) to go to the first circuit configuration screen.