ABB SM3000 User Manual page 19

SM3000
Multipoint Videographic Recorder
Circular Chart View
Chart Duration Fastest Sample Rate
9 minutes 0.1 seconds
30 minutes 0.1 seconds
1 hour 1 second
2 hours 1 second
3 hours 1 second
4 hours 1 second
6 hours 1 second
8 hours 1 second
12 hours 1 second
15 hours 1 second
16 hours 1 second
1 day 1 second
2 days 10 seconds
4 days 20 seconds
8 days 40 seconds
32 days 140 seconds
Table 4.1 Sample Rates and Screen Intervals
IM/SM3000–EN Rev. L
Note. Applicable only to Vertical and Horizontal Chart views.
Use the 'Screen Interval' to change the amount of data displayed on the screen. A longer
screen interval displays more data, a shorter screen interval displays data over a shorter
time period, but in more detail. In both cases, the full trace is preserved by plotting the
maximum and minimum samples for each display point.
Longer interval =
better overview
The screen intervals available in the menu are determined by the faster of the primary
and secondary sample rates set for the process group during configuration – see
Section 6.5.1, page 76. Unavailable screen intervals are greyed-out.
Table 4.1 shows the relationship between sample rate and screen interval for the Vertical
and Horizontal Chart views.
Note.

A 'Please Wait' message appears in the status bar while the instrument retrieves
data from storage.

Selecting a different screen interval does not affect the rate at which data is
sampled.

When in historical review mode, changing the screen interval causes the time at
the cursor position to change.
Vertical Chart View
Screen Interval Fastest Sample Rate
48 seconds 0.1 seconds
4 minutes 0.1 seconds
8 minutes 0.1 seconds
12 minutes 0.1 seconds
20 minutes 0.1 seconds
30 minutes 1 second
1 hour 1 second
2 hours 1 second
4 hours 10 seconds
8 hours 10 seconds
12 hours 10 seconds
16 hours 10 seconds
1 day 20 seconds
2 days 40 seconds
6 days 60 seconds
14 days 140 seconds
4 Operation
Shorter interval
= more detail
Horizontal Chart View
Screen Interval Fastest Sample Rate
70 seconds 0.1 seconds
6 minutes 0.1 seconds
12 minutes 0.1 seconds
17 minutes 0.1 seconds
30 minutes 0.1 seconds
45 minutes 1 second
1.5 hours 1 second
3 hours 1 second
6 hours 10 seconds
12 hours 10 seconds
18 hours 10 seconds
1 day 10 seconds
1.5 days 20 seconds
3 days 40 seconds
9 days 60 seconds
21 days 140 seconds
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