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The following table lists the digital filter settings for the allowable data rates:
Table 1–2:
Digital filter settings for data rates
Sampling
Slow
rate
1
4.000
2
2.000
5
0.800
10
0.400
20
0.200
40
0.100
80
0.050
Lower filter-time constant settings produce these effects:
•
Narrow peaks, with minimal peak distortion and time delay
•
Very small peaks may become more difficult to discriminate from baseline noise
•
Less baseline noise is removed
Higher filter-time constant settings produce these effects:
•
Greatly decrease baseline noise
•
Shorten and broaden peaks
For the highest resolution, select an appropriate sampling rate, and choose a fast filter-time
constant. For the highest sensitivity, select an appropriate sampling rate, and choose a normal
filter-time constant.
The following figure shows the relationship between increased filter-time constant and
absorbance.
Normal
Fast
2.000
1.000
1.000
0.500
0.400
0.200
0.200
0.100
0.100
0.050
0.050
0.025
0.025
0.0125
December 5, 2017, 715004753 Rev. B
Page 21
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Table of Contents
Troubleshooting
