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7-7
September 2003
TM0048
LaserNET
Program User's Guide
Figure 7-16. Print Button
2. The smoke history graph can be printed in either landscape (horizontal) or portrait (vertical) orientation.
The default is landscape. Select either
Landscape
or
Portrait
.
3. Select
<OK>
to begin printing.
Figure 7-17. Print Options Window
7-1.7
Clearing the Smoke History Buffer
After a period of testing, the history buffer can be cleared to avoid confusion at a later time.
1. From the Display and Control window, select
Options
>
Smoke History>Clear
.
2. Select
<OK>
to clear the stored smoke history.
7-1.8
Setting Smoke History Sample Rate
The smoke history sample rate is programmable over a range of one sample every two to 60 seconds, in
two-second increments. Since the history buffer can store up to 40,320 samples, the length of the monitor-
ing time ranges from 22.4 hours to as long as 28 days. The table below shows typical examples.
Table 7-1. History Buffer Sample Intervals and Monitoring Times
e
t
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4
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8
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6
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9
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4
.
7
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8
2
Note:
The history buffer will be cleared when the sample rate is changed.
1. From the Display and Control window, select
Options>Smoke History>Sample Rate
. The History
Buffer Update Period Window opens, as shown in Figure 7-18.
Summary of Contents for HART XL
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