Japan, NOHMI BOSAI
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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