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Cafeterias

(Results: 54 Found; Refine your results by making selections from the menu)

What are the best occupancy sensors for cafeterias?

Best Practices: Cafeterias come in widely varying sizes, so we will look at the differences in sensor application for Small to Medium-sized and Large cafeterias separately.

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Small to Medium Sized Cafeterias (Up to 50' X 100', ceilings up to 12')

Typical Room Features: In cafeterias of this size, a typical layout includes many hard surfaces such as tables, chairs, hard surface flooring, columns, glass, and hard surface walls. This makes an ideal environment for Ultrasonic technology. These hard surfaces often result in increased sensitivity and improved reliability for Ultrasonic sensors. When combining this technology with Passive Infrared sensors utilizing Multi-Technology, you have a perfect scenario for flawless operation. 

Best Sensing Technology: Multi-Technology and Ultrasonic Technology

Best Mounting Type: Ceiling and Wall Mount sensors are the best choice, but smaller rooms up to 20 X 30 feet can be successfully handled with a Multi-Technology Wall Switch sensor.

Typical Motion Sensing: Major Motion for dining; but, if the room is multi-purpose, consider Minor Motion sensing dimensions for sensor placement. When applying sensors in larger areas that require multiple sensors, figure in about a 3 to 5 foot overlap of the major motion sensing area for best coverage. 

Sensor Series Mounting Major Motion Area Minor Motion Area
 OSC/ODC05-M  Ceiling  23 Ft X 23 Ft  17 Ft X 17 Ft
 OSC/ODC10-M  Ceiling  23 Ft X 46 Ft  17 Ft X 34 Ft
 OSC/ODC20-M  Ceiling  32 Ft X 40 Ft  23 Ft X 45 Ft
 OSC/ODC05-U  Ceiling  23 Ft X 23 Ft  17 Ft X 17 Ft
 OSC/ODC10-U  Ceiling  23 Ft X 46 Ft  17 FtT X 34 Ft
 OSC/ODC20-U  Ceiling  32 Ft X 64 Ft  23 Ft X 45 FT
 OSW12-M  Wall  32 Ft X 32 FT  23 FT X 23 Ft
 OSWWV-M  Wall  60 Ft 115 Degrees  30 Ft 115 Degrees
 ODS10/15-I  Wall Switch  25 Ft X 35 Ft  15 Ft X 20 Ft
 OSSMT  Wall Switch  30 Ft X 40 Ft  25 Ft X 20 FT
 OSFH - High Bay  Fixture Mt.  40 Ft -60 Ft Dia  15 Ft -30 Ft Dia
 OSFH - Low Bay  Fixture Mt.  50 Ft -60 Ft Dia  30 Ft -40 Ft Dia.

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Mounting Recommendations: Multi-Technology and Ultrasonic sensors

  • Mount Multi-Tech sensors no more than 15 feet from the entrance - Since Multi-Technology sensors do their initial detection with the PIR sensing and then maintain detection using both sensor technologies, make sure sensors placed near entrances are no more than 15 feet from the entrance.

 

  • Aim Ultrasonic Technology sensors away from doorways or room openings - Since Ultrasonic sensors are omni-directional, they are capable of detecting motion outside of the room they are monitoring if their coverage range extends beyond doorways into adjacent rooms or hallways. To avoid this, aim Ultrasonic sensors away from doorways or openings. These sensors should be mounted within 10 feet of an entrance, but need to be mounted no closer than 20 feet from entrances if sensors are pointing at the entrance or opening. Caution should also be taken to locate the sensor so people entering are not walking into the natural dead zone of the sensor.  

 

  • Mount sensors at least 6 feet from HVAC ventilation openings - This will avoid any chance of false triggering in response to air currents. This applies to all Multi-Technology and Ultrasonic sensors.
  • Mount sensors no higher than 12 feet and no higher than 10 feet if floors are not a hard surface - Carpeting, partitions and ceiling tiles will all absorb Ultrasonic waves, reducing coverage range. Use care when exceeding 10 foot mounting heights with absorbant surfaces, as this may reduce sensitivity to movement around tables. Increased heights will increase the overall room volume being monitored. 
  • Allow for a buffer - Unless occupants will be against a wall, it is allowable to leave up to a 3 foot buffer area outside the sensor's detection range, rather than add additional sensors for coverage. Having greater coverage capacity than the room requires is always an advantage for best occupant detection. 

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Large Sized Cafeterias (Larger then 50' X 100' or ceilings as high as 40')

Best Sensing Technology: Multi-Technology and Ultrasonic technology for ceilings up to 12 feet; Passive Infrared when ceiling or mounting height exceeds 12 feet up to 40 feet.

Best Mounting Type: Wall Mount Multi-Technology sensors are the best choice until the both room directions exceed 70 feet. For larger spaces and when ceilings exceed 12 feet, the Passive Infrared OSF-series fixture mount sensors can be utilized very effectively.

Example #1: 12' Ceiling                                    Example #2: 20' Ceiling 

Click to enlarge                                             Click to enlarge

Typical Motion Sensing: Major Motion for dining; but, if the room is multi-purpose, consider Minor Motion sensing dimensions for sensor placement. When applying sensors in larger areas that require multiple sensors, figure in about a 3 to 5 foot overlap of the major motion sensing area for best coverage. Remember school cafeterias are often used for assemblies and testing which both uses are consider Minor Motion sensing areas.

Mounting Recommendations: Same as above for Multi-Technology and Ultrasonic sensors. For OSF PIR-series fixture mount sensors, utilizing the correct lens will allow for a large 40-60 foot diameter Major Motion sensing area and a 15-40 foot Minor Motion sensing area.

  • Obstructions must be factored in and avoided - Passive Infrared sensors use a semiconductor detector to sense the movement of infrared heat emitted from the human body. They require an unobstructed line-of-sight for accurate detection. Any furniture, columns or other obstructions that block the sensor's view will prevent an occupant's movement from being "seen" by the sensor. The sensor will respond when a person moves across the sensing zones, which are monitored by a multi-faceted Fresnel lens. Generally, PIR sensors are best for Major Motion sensing, as the distance between sensing zones increases rapidly at greater distances from the sensor.  
  • Ceiling heights greater than 12 feet up to 20 feet - Use the Low Bay (Blue ringed) lens. This will provide a Major Motion pattern increasing from 50 feet to 60 feet, the higher the sensor is mounted. Minor motion detection will range from 30 feet to 40 feet.
  • Ceiling heights greater than 20 feet up to 40 feet - Use the High Bay (White ringed) lens. This will provide a Major Motion pattern increasing from 40 feet to 60 feet, the higher the sensor is mounted. Minor motion detection will range from only 15 feet to 20 feet.

  • Mount sensors at least 6 feet from HVAC ventilation openings - This will avoid any chance of false triggering in response to air currents.
  • Allow for a buffer - Unless occupants will be against a wall, it is allowable to leave up to a 3 foot buffer area outside the sensor's detection range, rather than add additional sensors for coverage. Having greater coverage capacity than the room requires is always an advantage for best occupant detection.


Best Occupancy Sensors for Cafeteria Applications

To narrow the results, select from the attribute drop-downs in the left column at the top of this page and look below for the best sensor choices.

  • ODC05-MDW - Occupancy Sensor Ceiling Mount Multi-Technology Max. 500 Sq. Ft. 120/277 Volt AC 60Hz Self-Contained - White
    Occupancy Sensor OSC05-M0W Kitted with the Power Base Sensor. (Occ Sensor: 24VDC, 8-12 Foot Ceiling Mounted, 50 Single Tech.) (Power Base: Line Voltage to Low Voltage
  • ODC10-MDW - Occupancy Sensor Ceiling Mount Multi-Technology Max. 1000 Sq. Ft. 120/277 Volt AC 60Hz Self-Contained - White
    Occupancy Sensor OSC10-M0W Kitted with the Power Base Sensor. (Occ sensor: 24VDC, 8-12 Foot Ceiling Mounted, 10 Single Tech.) (Power Base: Line Voltage to Low Voltage
  • ODC20-MDW - Occupancy Sensor Ceiling Mount Multi-Technology Max. 2000 Sq. Ft. 120/277 Volt AC 60Hz Self-Contained - White
    Occupancy Sensor OSC20-M0W Kitted with the Power Base Sensor. (Occ Sensor: 24VDC, 8-12 Foot Ceiling Mounted, 20 Single Tech.) (Power Base: Line Voltage to Low Voltage
  • ODW12-MDW - MT WALL SNSR W/PWR BASE
    Occupancy Sensor OSW12-M0W Kitted with the Power Base Sensor. (Occ Sensor: 24VDC, 8-10 Foot Wall Mounted, 1200S Single Tech.) (Power Base: Line Voltage to Low Voltage
  • OSC05-M0W - Occupancy Sensor Ceiling Mount Multi-Technology Max. 500 Sq. Ft. 24VDC NAFTA - White
    Multi-Technology, 180 Degree, 500 Sq. Ft.Coverage, Self-Adjusting, Ceiling Mount Occupancy Sensor, Commercial Grade - White California Title 24 Compliant, UPC: 07847718055
  • OSC05-MAW - Occupancy Sensor Ceiling Mount Multi-Technology Max. 500 Sq. Ft. 24VDC NAFTA Made in USA - White
    Multi-Technology, 180 Degree, 500 Sq. Ft.Coverage, Self-Adjusting, Ceiling Mount Occupancy Sensor, Commercial Grade - White, Made in USA.
  • OSC05-RMW - Occupancy Sensor Ceiling Mount Multi-Technology Max. 500 Sq. Ft. 24VDC w/HVAC Relay NAFTA - White
    Multi-Technology, 180 Degree, 500 Sq. Ft.Coverage, Isolated Relay, Self-Adjusting, Ceiling Mount Occupancy Sensor, Commercial Grade - True White.
  • OSC10-M0W - Occupancy Sensor Ceiling Mount Multi-Technology Max. 1000 Sq. Ft. 24VDC NAFTA - White
    Multi-Technology, 360 Degree, 1000 Sq. Ft.Coverage, Self-Adjusting, Ceiling Mount Occupancy Sensor, Commercial Grade - White California Title 24 Compliant, UPC: 07847718057
  • OSC10-MAW - Occupancy Sensor Ceiling Mount Multi-Technology Max. 1000 Sq. Ft. 24VDC NAFTA Made in USA - White
    Multi-Technology, 360 Degree, 1000 Sq. Ft.Coverage, Self-Adjusting, Ceiling Mount Occupancy Sensor, Commercial Grade - White, Made in USA.
  • OSC10-RMW - Occupancy Sensor Ceiling Mount Multi-Technology Max. 1000 Sq. Ft. 24VDC w/HVAC Relay NAFTA - White
    Multi-Technology, 360 Degree, 1000 Sq. Ft.Coverage, Isolated Relay, Self-Adjusting, Ceiling Mount Occupancy Sensor, Commercial Grade - True White.
  • OSC20-M0W - Occupancy Sensor Ceiling Mount Multi-Technology Max. 2000 Sq. Ft. 24VDC NAFTA - White
    Multi-Technology, 360 Degree, 2000 Sq. Ft.Coverage, Self-Adjusting, Ceiling Mount Occupancy Sensor, Commercial Grade - White California Title 24 Compliant, UPC: 07847718013
  • OSC20-MAW - Occupancy Sensor Ceiling Mount Multi-Technology Max. 2000 Sq. Ft. 24VDC NAFTA Made in USA - White
    Multi-Technology, 360 Degree, 2000 Sq. Ft.Coverage, Self-Adjusting, Ceiling Mount Occupancy Sensor, Commercial Grade - White, Made in USA.
  • OSC20-RMW - Occupancy Sensor Ceiling Mount Multi-Technology Max. 2000 Sq. Ft. 24VDC w/HVAC Relay NAFTA - White
    Multi-Technology, 360 Degree, 2000 Sq. Ft.Coverage, Isolated Relay, Self-Adjusting, Ceiling Mount Occupancy Sensor, Commercial Grade - True White
  • OSFHP-ILW - Occupancy Sensor Fixture Mount PIR High Bay/Low Bay/Aisle 24VAC/DC w/Light Sensor - White
    PIR Fixture Mount High Bay Sensor with Light Sensor, 24V
  • OSFHS-ITW - Occupancy Sensor Ceiling Mount PIR Max. 3600 Sq. Ft. 120/230/277/347VAC - White
    PIR Surface/Recess Mount High Bay Occupancy Sensor

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