Intelligent Duct Smoke Detector SIGA-SD

The EDWARDS SuperDuct Signature Series smoke detector is the most advanced and most reliable device in its class. Designed for easy installation and superb reliability, SuperDuct represents the perfect balance of practical design and advanced technology. SuperDuct detectors feature a unique design that speeds installation and simplifies maintenance. Removable dust filters, conformally coated circuit boards, and optional water-resistant gaskets keep contaminants away from components, ensuring years of trouble-free service. When cleaning is required, the assemblies come apart easily and snap back together in seconds. A Signature Series photoelectric sensor is incorporated into the design of each SIGA-SD duct smoke detector. This sensor inherits the power and benefits of this exceptional line of intelligent devices. Signature Series sensors gather analog information from their smoke sensing elements and convert it into digital signals. The sensor measures and analyses these signals and compares the information to historical readings and time patterns to make an alarm decision. Digital filters remove signal patterns that are not typical of fires, which virtually eliminates unwanted alarms.
  • Less than 2″ deep for easy installation and applications where space is tight
  • -20°F to 158°F (-29°C to 70°C) operating range with 100 ft/ to 4,000 ft/min air velocity rating assures reliability under harsh environmental conditions
  • Status LEDs remain visible through clear assembly cover
  • Cover monitor switch for added security
  • Standard sampling tube spacing for easy drop-in migration from other detectors
  • Sampling tube can be installed with or without the cover in place and can be rotated in 45-degree increments to ensure proper alignment with duct airflow
  • 15.2 to 19.95 Vdc operation
  • Magnet-activated test switch
  • One Form C auxiliary alarm relay for controlling ancillary equipment (e.g., HVAC controls)
  • No special tools required for easy access to field connections
  • Signature Series intelligence
  • Environmental compensation with differential sensing for reliable, stable, and drift-free sensitivity
  • Wide 0.79% to 2.46% obscuration/ft. smoke sensitivity
  • Identification of dirty or defective detectors
  • Dimensions: 8.70 x 5.45 X 1.90 inches [221 x 138 X 48 mm)
  • Wire size: 14 to 22 AWG
  • Detection method: Photoelectric(light scattering principle)
  • Air velocity rating: 100 to 4,000 and rating meets the required minimum air pressure differential
  • Air pressure differential: 0.005 to 1.00 inches of water
  • Sensitivity: 0.79 to 2.46 %/ft obscuration
  • Alarm test response time: 5 seconds
  • LED indicators: Alarm (red), Power (green)
  • Common alarm relay: Unsupervised and power limited, Common Quantity: 1, Type: Form C, Ratings: 2.0 A at 30 Vdc (resistive)
  • Operating voltage: 15.2 to 19.95 Vdc
  • Operating current Standby: 45 µA Alarm 45µA Inrush: 1 mA Standalone alarm; 18 mA
  • Operating environment Temperature (ULC): -20 to 158 °F (-29 to 70 °C).
  • Temperature(ULC): -4 to 120 °F(-29 to 49 °C)
  • Relative humidity: 10 to Agency 93% noncondensing
  • Agency listings: UL, ULC, CSFM, FM, MEA