SDS-72
Components
of SDS-72
Control - and Indication Panels
Smoke Detection Panel Type SDS-3000
The Smoke Detection Panel SDS-3000 is normally located in the CO2 room of a vessel. The operation interface allows monitoring of the system state (alarm, fault and status messages) as well as manually switching the fans and resetting alarms. The Smoke Detection Panel includes the power converter, the terminals for the detector loops and the control / power outputs for the fan motors / fan unit.
For connection of local smoke detection units or extension panels different numbers of safety barrier channels are available. An external analogue addressable detection loop can be chosen for the monitoring of air exhaust ducts according FSS Code Ch. 10 2.3.1.2. Smoke Detection Panels of the type SDS-3000 have no own smoke detectors, they are pure control / indication panels and need to be connected to according system parts with detectors like e.g. Extension Panels or Smoke Detection Units (SDU). The Smoke Detection Panel SDS-3000 can be configured as control - or as indication - (remote -) panel. All indications, signals and functions are strictly according EN 54-2. They are part of all three variants (A, B, C) of SDS-72 systems.
Smoke Detection Panels SDS-3104, 3108 and 3112
The Smoke Detection Panels SDS-3104, SDS-3108 and SDS-3112 are combinations of a Smoke Detection Panel SDS-3000 with an Extension Panel SDS-3204, SDS-3208 or SDS-3212. They are normally located in the CO2 room of a vessel. The operation interface allows monitoring of the system state (alarm, fault and status messages) as well as manually switching the fans and resetting alarms.
The Smoke Detection Panels include the power supply, internal detection lines, terminals for extersion units (optional), terminals for external detector loops (optional), and the control / power outputs for the fan motors / fan unit. For connection of extension panels different numbers of safety barrier channels can be delivered. The panels are central parts of variant A of an SDS-72 - system. They can be used as a „plug-and-play“ replacement of an older SDS-48 - installation. Even if that was equipped with an additional Syncro ASM fire detection for the exhaust air ducts the same basic cabling can be used, several prior necessary junction boxes can be omitted.
Extension Panels SDS-3208, 3212 and 3216
The Extension Panels SDS-3208, SDS-3212 and SDS-3216 are normally located in the CO2 room near by the Smoke Detection Panel, to which they are connected. The Extension Panels increase the number of detection lines.
These panels are a typical part of variant A of an SDS-72 - system.
Smoke Detection Units SDU-3300, 3360 (SDU)
The Smoke Detection Unit SDU allows smoke detection in conjunction with large CO2-pipe diameters of up to 150 mm. The fittings for the hose connections at the top and at the bottom of the Smoke Detection Unit can be adapted to various hose connection sizes. To prevent premature smoke detector pollution, a large dust filter for different particle sizes is integrated. The dust filter can easily be cleaned or exchanged.
The airflow in the Smoke Detection Unit is being monitored permanently. The airflow detection threshold can be adjusted according the project requirements. Several Smoke Detection Units SDU are connected electrically to the Smoke Detection Panel by means of a 2-wire cable.
The SDU is a core part of the variants B and C of an SDS-72 - system.
Smoke Detection Unit SDU-3350 (SDU-EVD)
The Smoke Detection Unit SDU-EVD (type: SDS-3350) is used to monitor air samples at exhaust ventilation ducts. It must be mounted about the exhaust ventilation duct fan, with the input connected to the high pressure side and the output connected to the low pressure side.
A large removable and washable dust filter is integrated to protect the smoke detector against pollution. The versions of SDU-EVD for hazardous areas must be connected to junction box SDS-3700, as an option additionally with SDU (variant C). SDU-EVD can be used with all three variants of an SDS-72 - system.
Junction Box for Intrinsically Safe Detection Loops SDS-3700
SDS-3700 comes in different versions. All encompass loop - and galvanic isolators for the connection of intrinsically safe analogue addressable loop detectors. They differentiate in the number of detection loops that can be connected (1 or 2).
SDS-3700 is needed for the connection of either SDUs or Smoke Detection Panels in remote locations. SDS-3700 must be mounted in a safe area.
Remote Panel SDS-3500
The remote panel SDS-3500 is available in a flush mounting and in a wall mounting version. It is normally located on the navigation bridge or in the fire control station. The operation interface allows monitoring of the system state (alarm, fault and status messages) as well as manually switching the fans. The remote panel can be configured as inicating panel or as control panel.
The flush mount remote panel requires an external adapter ADP-3500, which must be connected by means of a flat cable. The wall mount remote panel has an integrated adapter module ADP-3500. The adapter module includes voltage free terminals for connection of alarm and fault signals to the ship’s alarm monitoring system (AMS). Further an NMEA 0183 interface (RS422) is available to connect the smoke detection system with the voyage data recorder (VDR).
Fan units SDS-M0440 and SDS-M0450
The fan units SDS-M0440 and SDS-M0450 are „duplicate sample extraction fans“ for „Sample Extraction Smoke Detection Systems“ as defined in FSS-Code Chapter 10 and in RESOLUTION MSC.292(87). They are used for drawing air samples through pipelines from cargo holds to a smoke detection panel and after passing the smoke detection panel conveying the air samples to free air.
The fan units are designed according EN 14986 for drawing air from hazardous areas. However they must be located in a safe area. For more details see below. Both fan units are not only built according the Rules for “Non-Sparking Fans” (IACS UR F-29), they carry an ATEX Ex protection approval (EX II 2/- G Ex h IIC T6 GB/- -25°C ≤ Tamb ≤ +55°C).
SDS-M0440 is the “normal” version of the classic safetec SDS fan unit. It is the perfect completion of a Variant A – system of SDS-72. SDS-M0450 is an enlarged version of this design, it can draw significant larger amounts of air. It is suited either for very large Variant A – systems with numerous lines or for Variants B or C.
Both versions can be utilized in doubled arrangements. Both can be delivered with different flanges to adapt them to the needs of a project.
Accessoires in large numbers like e.g. air filters are available.
Prefilters
Prefilters are needed when the sample air extracted from the cargo hold contains dust. The filter inserts have different fineness. They can easily be taken out and cleaned or replaced. They protect the smoke detectors in the SDS-72 - system. These filters come with different flanges according the mechanical arrangement in the project. They are compatible with the legacy systems SDS-2/6 and SDS-48.
The SDUs of the bigger systems also contain filter inserts that can be cleaned or replaced easily.
Services & Support
safetec offers solutions for many applications. Please contact us directly for advice and individual solutions.
Our team is ready to find the optimal solution for your specific fire protection requirements.
Our services