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LaserNET Program User's Guide
September 2003
TM0048
6-3
Figure 6-2. Faults Button
Figure 6-3. Show Faults
6-4
BUTTONS ON THE DISPLAY AND CONTROL WINDOW
There are four buttons on the Display and Control window: Airflow, Smoke, Isolation and Reset.
6-4.1
Airflow
Selecting
<Airflow>
displays a real-time view of airflow level, as well as all programmed parameters for
airflow as shown in Figure 6-4.
Figure 6-4. Airflow Status Window
Airflow Deviation.
This box displays the real-time airflow level through the Detector head. This is a
relative measurement (-50 to +50, with "normal" being 0, -50 being no airflow and +50 being maximum
airflow). The airflow through a Detector is highly variable because of a variety of environmental condi-
tions such as temperature, humidity and altitude. As a result, a normalizing function is available when
the normal airflow display shows a value other than 0. To normalize the airflow, see Paragraph 6-5.3.1.
Low Airflow Fault/High Airflow Fault.
These boxes display the programmed thresholds for both lev-
els. Each level has a corresponding programmable delay, which is shown in seconds.
Summary of Contents for HART XL
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