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NOHMI BOSAI FDGJ Series Projected Beam Type Smoke Detector

Made in Japan
Manufacturer: NOHMI BOSAI
Model: FDGJ Series

Features of FDGJ Series

  • 50% size reduction from previous model
  • Wide and high coverage within 100 m distance
  • Sensitivity drift compensation for contamination or a slight shift in the optical system
  • Light synchronized system to prevent false alarms
  • Simple optical axis setting
  • Optional remote test switch for easy maintenance
  • No special means is required for installation

Description of FDGJ Series

  • The NOHMI projected beam type smoke detector consists of a Light Transmitter and a Light Receiver, which are installed face to face with a distance of 5 to 100m between them, and initiates a fire alarm upon detecting a predetermined obscuration rate in the beam path along its entire length between them.
  • The NOHMI projected beam type smoke detector is suitable for protecting buildings with high ceilings (lower than 20m), such as halls, atriums, gymnasiums, warehouses and factories.
  • Model FDFJ103-D-X has a higher sensitivity than model FDFJ203-D-X and is suited to areas where ceiling height is more than 15m.

Specification

Specification Item FDFJ103-D-X FDFJ203-D-X FDFJ002-D-X
Model No. Conventional Conventional Analog addressable
Sensitivity See the table for monitoring distance vs. sensitivity See the table for monitoring distance vs. sensitivity See the table for monitoring distance vs. sensitivity
Monitoring Distance 5 to 100m 5 to 100m 5 to 100m
Distance Between Pairs of Detectors 14m or less 14m or less 14m or less
Maximum Applicable Ceiling Height 20m 20m 20m
Vertical Position of Beam Path Higher than 80% of ceiling height Higher than 80% of ceiling height Higher than 80% of ceiling height
Horizontal Position of Beam Path Between 0.6m and 7.0m from any portion of the area Between 0.6m and 7.0m from any portion of the area Between 0.6m and 7.0m from any portion of the area
Rated Voltage & Current Fire alarm signal circuit (KT1-KT2): 24VDC, 75mA S+–, S–: 24VDC, 200mA S+–, S–: 24VDC, 200mA
Trouble signal circuit (KT1-KT2): 24VDC, 75mA Remote test circuit (SH1-SH2): 24VDC, 5mA Remote test circuit (SH1-SH2): 24VDC, 5mA
Remote fire alarm signal circuit (KT1-KT2): 24VDC, 5mA Fire alarm signal circuit (KT1-KT2): 24VDC, 5mA Trouble signal circuit (KT1-KT2): 1μA
Power Consumption Light Transmitter: Green LED (Power-on) Red LED (Alarm) Light Transmitter: Green LED (Power-on) Red LED (Alarm) Light Transmitter: Green LED (Power-on) Yellow LED (Trouble)
Light Receiver: Red LED (Fire alarm) Light Receiver: Red LED (Fire alarm) Light Receiver: Red LED (Fire alarm)
Ambient Temperature -10 to 50°C -10 to 50°C -10 to 50°C
Materials Cover and front plate: Polycarbonate Base: Steel plate Cover and front plate: Polycarbonate Base: Steel plate Cover and front plate: Polycarbonate Base: Steel plate
Weight Light Transmitter: approx. 0.75kg Light Receiver: approx. 0.75kg Light Transmitter: approx. 0.75kg Light Receiver: approx. 0.75kg Light Transmitter: approx. 0.75kg Light Receiver: approx. 0.75kg

Arrangement plan for detector installation

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