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.
