Labconco Guardian 500 Airflow Monitor - Manual (Page 4)

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1.1 General Description
All systems comprise of the following components :-
1 – Guardian 500 Alarm unit,
1 – AC power supply
1 – Inner sidewall adaptor
If the Sash Alarm System option is included there will also be a sash micro switch or proximity
switch.
Operator Features --- the alarm has the following operator features :-
Normal Airflow - Green LED (Not flashing) will be displayed if the airflow is
greater than the Low air alarm point.
Low Airflow - Red LED (flashing) will be displayed if the airflow is lower
than the Low air alarm point.
Sash High - Amber LED (Flashing) will be displayed when the Sash is raised
above the max safe working opening.
Audible Alarm -- the Audible alarm will sound ( can be muted ) in the Air Low
and the Sash High alarm condition
Night Set-back -- when the Night Setback input is activated the Audible alarm
will be muted and the Setback LED will illuminate.
External Alarm -- when the External Alarm input is activated the Audible alarm
will sound and the External Alarm LED will illuminate.