Marine Sample Extraction Smoke Detection System | For Cargo Holds
A system for early-warning smoke detection in cargo holds. It uses redundant fans to continuously draw airsamples to a central detection unit. An intelligent controller analyzes smoke levels, provides alarms, and automatically adjusts for sensor cleanliness to prevent false alarms.
Accreditation and Certificates:
| No. | Equipment Name | Model | Operating Voltage | IP Rating | Explosion Proof Rating |
|---|---|---|---|---|---|
| 1 | Controller | SES-CP | 2×220/230VAC 50/60Hz; or 2×110/115VAC 50/60Hz | IP56 | – |
| 2 | Detector Box(Optional / Customizable) | SES-DB4 | – | IP56 | EEx ia IIC T5 |
| SES-DB8 | – | IP56 | EEx ia IIC T5 | ||
| SES-DB12 | – | IP56 | EEx ia IIC T5 | ||
| SES-DB16 | – | IP56 | EEx ia IIC T5 | ||
| 3 | Repeater | SES-RP | 24VDC | IP56 | – |
| 4 | Relay Box | SES-RB | 24VDC | IP56 | – |
| 5 | Fan Unit | SES-FU220 | 2×220/230VAC 50/60Hz | IP54 | – |
| SES-FU110 | 2×110/115VAC 50/60Hz | IP54 | – |
Typical Configuration Example of the 12-Channel SES-36 Cargo Smoke Detection System
- All alarms are accompanied by both audible and visual signals, and detailed text information is displayed on the LCD.
- The system has two power input lines. If one fails, it will automatically and seamlessly switch to the other.
- Automatic monitoring of airflow changes.
- Automatic monitoring and control of fan operation.
- The system can automatically detect the cleanliness level of each smoke detector and adjust the corresponding parameters accordingly, ensuring that the relative alarm threshold remains consistent and preventing false alarms. The system will automatically prompt the cleanliness status of the detector.
- All alarm information is transmitted to the VDR in NMEA0183 format.
Model: SES-CP The SES-CP Controller supplies the 24V DC power for the entire system, controls fan operation, monitors system faults, analyzes smoke concentration, and displays results. It is the core part of the system. The controller provides the following external terminals:
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Model: SES-DB12 The SES-DB12 Detector Box integrates 9 to 12 detection channels. Each channel is equipped with an independent smoke sensor and airflow variation detector. The connection between the detector box and the controller uses a 2-core cable. |  |
Model: SES-RP The repeater can be installed anywhere on the vessel, either embedded or wall-mounted, to display fire alarms and fault alarms. Like the controller, the repeater provides audible and visual alarms for fire and fault signals. If the repeater address is set to “2,” it can also operate the system (same functions as the controller, such as acknowledging alarms from the controller or other repeaters). The connection between repeater and controller uses a CAN bus. Each system can connect up to 5 repeaters. |  |
The Fan Unit is available in two models: SES-FU220 (220VAC) and SES-FU110 (110VAC). Each fan unit integrates two independent fans, with only one fan operating at a time. The controller automatically switches between the two fans every 24 hours. If one fan fails, the other fan will automatically start, and the system will display the relevant fault information. |  |
- Redundant Design for High Reliability: Features dual power supply inputs and dual fan units. The system automatically switches to the backup power supply or backup fan in case of a failure.
- Intelligent False Alarm Prevention: Our controller automatically monitors the cleanliness value of each smokesensor. It adjusts system parameters based on this value to maintain a consistent alarm threshold and prevent false alarms.
- Automated System Monitoring: Includes self-diagnostic functions for the entire system. It automatically monitors airflow from each line and controls the fan operation. Any system fault generates a specific alarm.
- Clear Alarm & Data Output: All alarms are both audible and visual, with detailed text messages on the LCD screen. Alarm information is sent to the VDR in NMEA0183 format.
Applications：
- General Cargo Holds: Provides continuous smoke monitoring for holds carrying dry cargo, paper, or timber.
- Bulk Carrier Holds: Offers early-warning fire detection for holds containing bulk commodities like grain, coal, or ore.
- Container Ship Holds: Monitors the enclosed spaces within container holds for signs of combustion.
Installation & Maintenance：
Installation: The system consists of a controller, detection boxes, a fan unit, and a pipe network. All components are installed according to the ship’s fire protection arrangement drawings. The detection box connects to the controller via a 2-core cable.
Maintenance: Routine maintenance includes checking the pre-filters and cleaning them as required by cargo type. The system’s self-diagnostic function will generate a fault alarm if a smoke sensor requires professional cleaning or replacement.
Custom Options Available：
Detection boxes are available in configurations for 4, 8, 12, or 16 lines. This allows the system to match the number of protected cargo holds on your vessel. Repeater panels for remote monitoring can be added to the system.
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