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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 ItemFDFJ103-D-XFDFJ203-D-XFDFJ002-D-X
Model No.ConventionalConventionalAnalog addressable
SensitivitySee the table for monitoring distance vs. sensitivitySee the table for monitoring distance vs. sensitivitySee the table for monitoring distance vs. sensitivity
Monitoring Distance5 to 100m5 to 100m5 to 100m
Distance Between Pairs of Detectors14m or less14m or less14m or less
Maximum Applicable Ceiling Height20m20m20m
Vertical Position of Beam PathHigher than 80% of ceiling heightHigher than 80% of ceiling heightHigher than 80% of ceiling height
Horizontal Position of Beam PathBetween 0.6m and 7.0m from any portion of the areaBetween 0.6m and 7.0m from any portion of the areaBetween 0.6m and 7.0m from any portion of the area
Rated Voltage & CurrentFire alarm signal circuit (KT1-KT2): 24VDC, 75mAS+–, S–: 24VDC, 200mAS+–, S–: 24VDC, 200mA
Trouble signal circuit (KT1-KT2): 24VDC, 75mARemote test circuit (SH1-SH2): 24VDC, 5mARemote test circuit (SH1-SH2): 24VDC, 5mA
Remote fire alarm signal circuit (KT1-KT2): 24VDC, 5mAFire alarm signal circuit (KT1-KT2): 24VDC, 5mATrouble signal circuit (KT1-KT2): 1μA
Power ConsumptionLight 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
MaterialsCover and front plate: Polycarbonate Base: Steel plateCover and front plate: Polycarbonate Base: Steel plateCover and front plate: Polycarbonate Base: Steel plate
WeightLight Transmitter: approx. 0.75kg Light Receiver: approx. 0.75kgLight Transmitter: approx. 0.75kg Light Receiver: approx. 0.75kgLight Transmitter: approx. 0.75kg Light Receiver: approx. 0.75kg

Arrangement plan for detector installation

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