Varian ProStar 325 UV-Vis, Service Manual

Page: 82 / 149

ProStar325 Service Manual
82
Publication date 8 May 2003
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Peak Valley – negative (down)
•
Peak End – positive (up)
•
Pulse – negative (down)
•
Time Slice – positive (up)
•
Level - positive (up)
A tick mark will appear at the analog output in real time
immediately after the event is detected, whereas peak sense relay
activation will occur only after the time interval of the “peak
sense duration” parameter.
The analog output is driven by a 16-bit converter with an output
range of
0-1V FS with +11%/-20% over-range.
This gives an analog output resolution (at 1AU/Volt) = 1V*131% /
65535 = 20uV = 20uAU.
The Full Scale ranges are:
Full Scale (AU) Resolution (uAU)
0.0005 0.01
0.001 0.02
0.002 0.04
0.005 0.1
0.01 0.2
0.02 0.4
0.05 1.0
0.1 2.0
0.2 4.0
0.5 10.0
1.0 20.0
2.0 40.0
5.0 100.0
10.0 200.0
20.0 400.0
50.0 1000.0
100.0 2000.0
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