PDT- Volumetric Wide View Sensor-Microphonic- Dual Technology- Wall Mounted
The Sensor Switch Passive Dual Technology Line Voltage Wide View Sensor, offered in both single and 2-pole models, was specifically designed to provide an economical approach to controlling a classroom when the ceiling is inacces-sible. The PDT Line Voltage Wide View Sensor can control two circuits consisting of incandescent, fluorescent, or inductive loads.
SENSOR OPERATIONS:
The Passive Dual Technology Line Voltage Wide View sensor controls lighting through a self contained relay in the sensor housing. The sensor will operate on an input voltage of 120/277 VAC. The sensor turns the lights on when an occupant enters the room. Sensor Switch products use PIR (Passive Infrared) and Microphonics in combination with a Fresnel Lens. The PIR portion of the sensor detects an occupant entering the room and turns on the lights. Once on, the Microphonic portion is engaged to detect occupant "noise". As an occupant moves within the field-of-view, the sensor detects a change in motion and temperature. Every time an occupant moves or noise is made, the time delay circuit is reset. Each sensor provides for an adjustable time delay from 30 seconds to 20 minutes. It can be adjusted manually with a small precision screwdriver (enclosed). After a period of time the sensor will automatically time out, turning the lights off. A 10 second grace period is provided to voice reactivate the system if needed.
SENSOR FEATURES:
The WVR-PDT mounts in the corner of the room above the door or on the wall above the switch. The installer places a wiremold switch extension box on the switch. Use wiremold raceway up the side of the door. The sensor will mount in a single gang switch box. Thus giving a full field of view of the room. The typical mounting height of the Wide View Sensor is 7 to 8 feet. The existing switch will now provides Auto and Off operation. You will be able to manually turn the lights off.
SYSTEM CONSIDERATION:
Ideal for classrooms, conference rooms, or large spaces, this sensor will effectively sense small sedentary type motions up to 35 feet, and walking motions up to 70 feet. The PDT line of sensors, unlike any other occupancy sensor, self-adjusts to it's envirnoment. The Automatic Gain Control (AGC) feature allows the sensor to tune out constant background noise. However, changing noise signals like talking, shuffling of papers, and general human activities are readily detected. Avoid locating the sensor near HVAC air diffusers because the "noise" generated from the air flow will decrease the sensitivity of the microphonic sensor. Care should also be taken that the PIR collector beams do not view outside the controlled area.
Sensor Switch, Inc., 500 Turtle Cove Road Suite 215, Rockwall, TX 75087. Tel: 972-771-5990; Fax: 972-771-5764.