High Bay Sensor High Bay Lights
Multifunction motion sensor high bay lights are the latest way to automate lighting functionalities. These smart LEDs turn on only when someone or something moves within their detection area and then stay off the rest of the time.
These sensors mount directly to a lighting fixture and control 0-10 VDC LED drivers or dimming ballasts for daylight control. End users can program length of time delay, sensitivity and other settings.
Occupancy sensors are a great energy-saving solution for enclosed Intelligent power supply spaces that experience unpredictable rates of occupancy, like private offices, restrooms, break rooms and meeting areas. Unlike scheduled automatic shutoff, these sensors switch lights ON when people are in the area and keep them ON until they leave or for a user-adjustable amount of time.
Plug-and-play sensors are installed in a light fixture and act as an integrated light switch. The PIR sensor detects movement in the field-of-view and when a person enters, the lights are automatically turned ON. If the motion continues for a user-adjustable period of time, the lights are switched OFF after a predetermined amount of time.
Unlike Ultrasonic sensors, which are prone to false triggering from heat sources such as HVAC and coffee machines, PIR sensors use infrared technology to detect motion. This enables the sensor to distinguish between body warmth and distractions.
Many high bay lighting manufacturers offer a variety of sensor options including wall and ceiling mounts. For large spaces with a higher lighting load, it may make sense to mount the sensor in the ceiling rather than on a wall. There are also a number of advanced sensor features that allow users to reduce energy consumption even further, such as ultrasonic boosters that enable a single wall-mounted sensor to cover an entire space, and line-voltage control that allows the sensors to work directly with dimmers for maximum energy savings.
Passive Infrared (PIR) Sensors
PIR sensors detect motion by observing infrared (IR) energy emitted from objects within their field of view. They are ideal for replacing wall switches in enclosed spaces where a light switch would obscure the viewing area or as an addition to security systems. These specialized devices work in conjunction with other components to trigger an alarm or activate lights when movement is detected.
They are a good option for areas that are difficult to monitor manually, such as hallways, computer rooms and warehouse aisles. PIRs are also well-suited for high-ceiling areas or spaces with direct line of sight viewing where a light switch could be an obstruction.
In a typical PIR sensor, a pyroelectric crystal that sits in a plastic housing emits a small amount of electricity when exposed to ambient IR radiation. If a person moves through the detecting range of the sensor, the change in incoming IR energy causes the voltage on the crystal to change and the electronics in the device respond by switching to an ON state.
The electronics in the device are usually designed to filter out the IR energy that is reflected off of a person’s body surface and into the sensor lens, while simultaneously focusing the incoming IR energy from multiple angles or zones to increase the sensing range of the detector. This feature helps the device resist false indications caused by brief flashes of sunlight or excessive energy exposure over a prolonged period of time that may saturate the sensor material.
Many of our sensor switches combine occupancy motion sensing and 0-10V dimming control of LED drivers or ballasts into one device. These smart sensors save energy and reduce maintenance by only activating lights when they are needed. This also prevents wasteful illumination of areas with no occupants. They have a built in daylight sensor to control the amount of natural light that is used and can be programmed for desired dimming levels or to turn lights off automatically at a time set by the user.
These fixture mounted sensors can detect motion through plastic, glass or thin non-metal materials and have a maximum detection area of 35ft in diameter. They High Bay Sensor can be programmed with the BubblyNet® app to adjust light level sensitivity, length of time delay and sensor range.
These recessed mount photocells have a digital PIR motion detector architecture and dual element passive infrared technology to improve detection for high ceiling mounting applications up to 40ft in height. They work with a wireless lighting controls system like Daintree Networked Wireless Lighting Controls to enable multi-level dimming and ON/OFF control of LED drivers and ballasts for energy savings, code compliance, and enhanced comfort for occupants.
Time Delay Sensors
The time delay allows you to turn on the lights and keep them ON until motion is detected. Once no motion is sensed the lights will switch OFF again for an adjustable time. This is useful in areas where the lighting is needed for certain activities, such as maintenance work or cleaning.
Some sensor models can be wired or wireless and have a larger coverage area than traditional ceiling-mounted PIR sensors. The wireless model uses ultrasonic technology and emits a high-frequency signal throughout the space to monitor for changes in frequency, such as from an object moving in the area.
These sensors can be used to detect movement in large areas such as warehouses, manufacturing spaces and aisle ways. They also work well in large indoor sports arenas where the volume of air movement is a factor.
The sensor mounts externally to the luminaire generally out a knock out (KO) on the end of the fixture, and comes with two interchangeable lenses one for High Bay applications 26-40 ft and one for Low Bay applications 8-25 ft. The sensor can be powered by a volt free switch (not included) or via a 0-10 VDC LED driver or dimming ballast. The sensor includes a mount and cable for secure suspension from truss work and a 4-ft grounded cable for connection to the AC power source.