D297 Smoke detector, long-range beam, 12V

D297 Smoke detector, long-range beam, 12V

  • Operates over distances between 30 ft (9 m) and 350 ft (107 m)
  • Six levels of switch-selectable sensitivity
  • Built-in alignment sights and tamper protection
  • Automatic range adjustment, signal synchronization, and contamination adjustment
  • Remote indicator plate annunciates detector status and provides test points for voltage monitoring

The D297 Long-range beam smoke detector (12V) is used in clear open structures. Arenas, atriums, auditoriums, ballrooms, churches, factories, museums, and warehouses are typical areas. Each detector consists of a transmitter, a receiver, and a remote indicator plate. The transmitter and receiver typically mount on the ceiling or high on walls or columns. They provide an effective and unobtrusive means of supervising public areas for fire protection. The remote indicator plate, included with the detector, provides a convenient means of verifying detector status. Install it anywhere within 500 ft. (152 m) of the beam receiver when using 18 AWG (0.75 mm2 ) wire). Three LEDs indicate normal, trouble, and alarm conditions, and test points monitor the detector circuit.

 
Alarm Current (Receiver) 75 mA at 12 VDC
Standby Current Receiver: 50 mA at 12 VDCTransmitter: 20 mA at 12 VDC
Operating Voltage 10.2 VDC to 15.0 VDC
Alarm contacts Normally Open (N/O) contacts rated 1 A, 60 VDC maximum for DC resistive loads, do not use with capacitive or inductive loads
Auxiliary alarm contacts Normally Open (N/O) contacts rated 1 A, 60 VDC maximum for DC resistive loads, do not use with capacitive or inductive loads
Trouble contacts Normally Closed (N/C) contacts rated 1 A, 60 VDC maximum for DC resistive loads, do not use with capacitive or inductive loads
   
Environment Indoor, dry
Relative humidity 0% to 95%, non‑condensing
Temperature(storage and operating) -22°F to +130°F (-30°C to +54°C) For UL Listed installations, the range is +32°F to +130°F (0°C to +54°C)
   
Dimensions 7 in. x 5.5 in. x 5.5 in. (17.8 cm x 14 cm x 14 cm)
Mounting Mount to 3.5 in. or 4-in. square or octagonal electrical boxes or European Beza boxes
Adjustability Internally adjustable optics for ±90° horizontal, and ±10° vertical adjustment
Sensitivity Field selectable for 20%, 30%, 40%, 50%, 60%, or 70% beam obscuration
System Signaling Conventional four-wire system, do not use with systems incorporating an alarm verification feature
Signal Delay Fire: Selectable 30 sec or 5 secTrouble: 20 ± 2 sec
Spacing(distance between systems) 60 ft. (18 m) maximum, spacing confirmed by Underwriters Laboratories (UL) testing
Transmission range 30 ft. (9 m) to 350 ft. (107 m)
Tamper Receiver: Access door tamper switch in series with trouble contacts. Transmitter: When the cover is removed, the cover tamper switch interrupts transmission