8
1.4 Events / actions
Safe airflow
• Meter reading above warning level ( eg > 0.45 m/sec )
• Green LED on
Warning airflow
• Meter reads between warning level and air fail level ( eg > 0.40m/sec and < 0.45 m/sec )
• Amber LED on
Low airflow
• Meter reads below alarm level for longer than the warning to low air delay time
• AIR FAIL toggles on / off with display
• Red LED on ( Flashing )
• Audible alarm sounds -- can be muted via Enter pushbutton
• Low air relay operates ( if configured )
Reset : -- when airflow rises 0.02m/sec 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 :-
• High Air toggles on / off with display
• Audible alarm sounds – can be muted via Enter pushbutton)
Audible alarm Mute
• When the audible alarm is muted via the Enter button - an Icon ( horn with forward slash)
is shown on the display.
Sash High
• When the input configured as Sash High is activated
• Amber LED on
• Sash High – toggles on / off with velocity display
• Audible alarm sounds
• Audible can be muted via Enter pushbutton -- this silences the alarm and initiates a
repeat timer ( if configured ). After the delay time the alarm re-sounds ( and can be re-
muted). During this time the Amber LED flashes on / off.
• Sash High relay operates ( if configured )
Reset when Sash lowered to safe position and input de-activated.
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