The sensor includes a plastic housing, a printed circuit board, a clear plastic cover, an exhaust tube, and a sampling tube. The exhaust tube and sampling tube are attached during installation. The sampling tube varies by size, but the correct one is included with the kit. The clear plastic cover permits visual inspections without having to disassemble the sensor. The cover attaches to the sensor housing using four captive screws and forms an airtight chamber around the sensing electronics.
• Environmental compensation with differential sensing for reliable, stable, and drift-free sensitivity.
• Magnet-activated test/reset switch on sensors.
• PCB mounted photoelectric sensor with on-board intelligence.
• Cover tamper switch for added security.
• Alarm, Trouble, Dirty, and Power status LEDs (see Fig. 3).
• Extended temperature and air velocity ranges.
• Capable of adding an additional sensor (for a total of two) using the same controller.
• Multiple operating voltages.
• No tools required to access field connection terminals.
• Recessed momentary switch for test/reset of the detector.
• One set of normally open alarm initiation contacts for connection to an initiating device circuit on a fire alarm control panel.
• Two Form-C auxiliary alarm relays for interface with roof-top unit or other equipment.
• One Form-C supervision (trouble) relay to control the operation of the Trouble LED on a remote test/reset station.
• Can be wired to up to 14 other duct smoke detectors for multiple fan shutdown applications.
SPECIFICATIONS
• Sensor Dimensions: 8.70 x 5.45 x 1.90 in.
• Smoke detection method: Photoelectric
• Operating environment: Same as controller
• Air velocity (min-max): 100 to 4,000 ft/min
• Pressure differential (min-max): 0.005 to 1.00 in.
