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Standard Light Control
Animal behavior is linked to light; consistent scheduled exposure to controlled lighting can even reduce stress levels. The Edstrom Watchdog System light control is both reliable and flexible; providing a dual light level that allows a reliable lower-level "daylight" on a preset schedule, with a flexible temporary override to provide higher-level lighting for staff work.
Integrated with the monitoring feature of the Watchdog, light level in the room is continuously verified and all changes are logged. If a light is burned out, a notification is sent to key personnel.
Advanced Light Module
The Advanced Light Module (ALM) is a unique solution for monitoring and controlling lighting in the vivarium. The ALM gives authorized personnel the ability to create the lighting schedule on a room-by-room basis. The ALM supports low level, high level, and night lighting while providing lighting control, monitoring, alarming, and reporting. These unique features make this product a powerful answer to light control and monitoring needs.
The system allows each room to have flexible lighting schedules using four different light states: Low level, high level, night light, and no light. The system also has a light blink safety feature that gives advance notice prior to the lights turning off providing personnel time to conclude activities or override the lighting schedule. When lights in a particular room deviate from the programmed schedule, an alarm is sent to designated personnel via phone, pager, or email. Lighting reports are easily generated and clearly identify lighting schedule variations.
Light switching is performed by electromechanical lighting relays controlled by solid state, self-protecting relay drivers. The module monitors light state using both a calibrated light sensor and feedback information from the relays. If the ALM determines a lighting relay has failed, the system will indicate which relay has failed by activating an alarm. For critical applications, an optional 3-relay redundant configuration can be used to maintain light control in the event of a relay failure.
Block Diagram of a Typical ALM Installation in an Animal Room
(Click image to see enlarged view)
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