Kewaunee Air Alert 600, Installation And Operating Manual

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3.1 Airflow Functions.
The airflow monitor velocity display can be set up using the pushbutton menus to display airflow in
units of m/sec or fpm and can also be set to show plain text "Air Safe" & "Air Fail" only.
The airflow monitor has 3 programmable airflow alarms.
Safe airflow
• Airflow reading above warning level (e.g. > 0.90 fpm)
• Screen Backlight Green
Warning airflow
• Airflow reads between warning level and air fail level (e.g. > 80 fpm and < 90 fpm)
• Screen Backlight Amber
Low airflow
• Airflow reads below alarm level for longer than the warning to low air delay time
• Air Fail toggles on / off with display
• Screen Backlight Red
• Audible alarm sounds -- can be muted via Enter pushbutton
• Low air relay operates (if configured)
Reset: -- when airflow rises 3 fpm above Low air level for longer than the low air to
warning air delay time the Low air alarm resets automatically
High airflow
If configured:
• Airflow reading above high level (e.g. > 300 fpm)
• High Air toggles on / off with display
• Screen Backlight Red
• High air relay operates (if configured)
Audible Alarm Mute
When the audible alarm is muted via the Enter button - an Icon (horn with forward slash) is shown on
the display
.
The audible alarm can be permanently disabled in the pushbutton menu.