D296 Smoke detector, long-range beam 24V
- 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 D296 Long-range beam smoke detector (24V) 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 using 18 AWG (ISO 0.75 mm2) wire. Three LEDs indicate normal, trouble, and alarm conditions, and test points monitor the detector circuit.
| Alarm Current (Receiver) | 70 mA maximum at 24 VDC |
| Standby Current | Receiver: 45 mA at 24 VDCTransmitter: 20 mA at 24 VDC |
| Operating Voltage | 18.0 VDC to 32.0 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 |