Appendix 1 Scan Timing
A1
Appendix
For sampling of the 8948 Voltage/Temp Unit and 8949 Universal Unit, there is a
scan system for each channel. The figure below shows scanning when the digi-
tal filter is off and the recording interval is 10 ms.
When the digital filter is off, the scan widths and dead times between channels
are fixed to the values shown in the figure above regardless of the recording
intervals. When the digital filter is on, the scan widths and dead times between
channels vary in accordance with the recording intervals.
The following table show the scan widths and dead times between channels
when the digital filter is on.
*1: 260.00 ms when in combination with humidity measurement.
*2: 266.67 ms when in combination with humidity measurement.
Appendix
Appendix 1 Scan Timing
Recording Interval 10 ms
Dead time between
channels (0.1 ms)
Scan width
(0.38 ms)
Recording Interval Scan Widths Dead Times between Channels
10 ms 0.38 ms 0.10 ms
20 ms 0.89 ms 0.11 ms
50 ms 2.37 ms 0.30 ms
100 ms 4.74 ms 0.59 ms
200 ms 9.39 ms 1.17 ms
500 ms 24.20 ms 3.02 ms
1 s 48.40 ms 6.05 ms
2 s 96.29 ms 12.04 ms
5 s, 10 s
50 Hz
160.00 ms
*1
20.00 ms
60 Hz
133.33 ms
*2
16.67 ms
20 s or more 800.00 ms 100.00 ms
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