Description :

1. The OS-550T is an occupancy sensor designed for automatic operation control of HVAC system. This occupancy sensor delivers a changeover relay contact output to control the HVAC operation according to the occupancy status of the area.
2. In addition to all standard features of OS-550, this sensor provides high/low temperature setbacks to prevent the room temperature becoming too high or too low during unoccupied period. The sensor can be wall or ceiling mounted with the mounting bracket.

Specification :

1. Power supply 24 2 VAC/DC. 2. Detection range 15 x 15 m at 25C. 3. Relay output Form C, 5A / NO, 3A / NC resistive. 4. Current drain 20 mA @24 VDC. 5. Temp. setbacks High: 30 / 28 / 26C, Low: 15 / 13 / 11C. 6. Mounting height 1.8 ~ 3.6 m. 7. ON delay 0 - 10" - 30" - 1' - 5' - 10' selectable. 8. OFF delay 10" - 1' - 5' - 10' - 20' - 30' selectable. 9. Detectable speed 0.1~ 3 m/sec.(0.3~10 ft/sec.). 10. RFI immunity Av. 20 V/m (10~1,000 MHz). 11. Humidity 95% RH max. 12. Temperature -10C ~ 60C (14F ~ 140F). 13. Dimensions 112 x 66 x 45 mm (4.4 x 2.6 x 1.8").

Features :

1. Dual element infrared sensor.
2. Superior RFI / EMI immunity.
3. Temperature compensation.
4. Programmable ON & OFF delays.
5. High density detection zones.
6. Disabled walk test LED.
7. Mounting bracket included.
8. Form C changeover relay output.
9. High-low temperature setbacks.
10. Dual zone look down detection.

• 
  HVAC Occupancy Sensors
• 
  HVAC Occupancy Sensors
• 
  Dual Technology Occupancy Sensors