Table of Contents
Advertisement
9.5.2. TREND GRAPHS
Date at cursor position.
This screen is a partial view of
the trend graph. There are other
screens before and after the
visible part.
Use the or button to move
the cursor.
The display period of this graph is one minute. Since the period of the record is one second, each point of this graph corresponds to
a value recorded in a one-second window once a minute. There is therefore a substantial loss of information (59 values out of 60),
but the display is rapid.
Saturated values appear in red.
Black dashes - - - - indicate erroneous values.
Red dashes
- - - -
If red dashes appear when the
AVG mode.
The MIN-AVG-MAX mode has
been activated.
The display period of this graph is one minute. With MIN-AVG-MAX mode activated, each point of this graph represents the
arithmetic mean of 60 values recorded every second. This display is therefore more precise, because there is no loss of information,
but slower (see the table at the end of this section).
To stop the calculation of MIN-AVG-MAX mode, press
NOTES: While MIN-AVG-MAX mode is being calculated, a progress bar is displayed in the status bar instead of the
recording display window positioning bar.
MIN-AVG-MAX mode is not available while a trend is being recorded.
To return to the Recording Parameters screen, press
Places the cursor on the first
occurrence of the minimum
Pressing the
or
button automatically sets "zoom in" to the highest level (display period identical to the recording period) and
de-activates the MIN-AVG-MAX mode if activated.
is pressed, they indicate values that are not calculated in the MIN-MAX-
.
.
value.
Figure 9-4
Figure 9-5
Figure 9-6
68
Position of viewing window in the
record.
To select the display filter, press the
or button.
Change the display scale between
1 minute and 5 days
Places the cursor on the first
occurrence of the maximum value.
Advertisement
Table of Contents
