Mytech OMNI US1000 OCCUPANCY SENSOR ULTRASONIC CEILING MOUNT NEW!!

Description

Dual Technology Sensor The most advanced sensor available. Combines dual technology with alldigital architecture. Eliminates false triggering. The result is a trouble-free, “install and forget” solution for lighting control. The OMNI-DT Series Occupancy Sensor • Composite Infrared & Ultrasonic • Simple, Fast Installation • Self Adjusting (Adaptive) • All-digital, Complete Reliability • Optional Photocell & Extra Contacts • Ceiling Mount GENERAL OPERATION Occupancy sensors have two tasks: keeping the lights on while the room is occupied and, conversely keeping the lights off when unoccupied. Ultrasonic (doppler shift) motion detection gives maximum sensitivity yet can be vulnerable to false triggering from air conditioning currents, corridor activity and movement of inanimate objects. Infrared motion detection gives immunity to false triggering, but lacks sensitivity at greater distances. COMPOSITE DUAL TECH SENSING Using infrared sensing (high error immunity) with ultrasonic (high sensitivity) provides good performance. Conventional dual tech sensors use a simple formula for operation: BOTH for ON, EITHER for KEEP ON. This method requires that both sensors receive fixed-strength signals for ON or a single fixed-level signal for KEEP ON. The OMNI uses a more sophisticated method called a composite singal where the signal strengths are added together to form a composite sum. The advantage of this method is that a week IR signal plus a strong US signal will turn the lights on because the sum is enough. The installer need not worry that the signal level be balanced for reliable lights on. ADAPTIVE FUNCTIONS The OMNI constantly analyzes and adapts to changing conditions: When unoccupied, lights stay off while air conditioning system cycles on and off, and cleaning crews occupy corridors. Note: two major errors in Circadian mode (such as a false-off) will cause Learning Phase to restart. Installation Learning Post Learning - Occupancy Periods (Circadian) 60 min. Four weeks After four weeks Timer automatically resets from Test (8 sec.) to 8 minutes. 1. Response to Error Conditions: (false-ons, false-offs) 2. Air current adaptation 3. Timer optimization Adjustments Made: Ultrasonic sensitivity Infrared sensitivity Timer Air current threshold 1. 24 hour occupancy periods learned (circadian) 2. Weekly occupancy periods learned Adjustments Made: a. Generally occupied periods: Threshold=High Sensitivity mode b. Generally unoccupied periods: Threshold=Miser mode