Graviner 44782-K183 Main Interface / Processor PCB

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    • Product Code: 44782-K183
    • Availability: In Stock
    Graviner 44782-K183 (Interface PCB)
    Part No.: 44782-K183 (1-44782-K183)
    Manufacturer: Graviner (Kidde, UK)
    Series: MK6 Oil Mist Detection (OMD) System
    Type: Main Interface / Processor PCB
    Application: Marine Engine Crankcase Protection
    1. General Description
    The 44782-K183 is the critical Interface / Processor Printed Circuit Board (PCB) for the Graviner MK6 Oil Mist Detector (OMD) system, a widely used safety device on marine diesel engines. This board serves as the "brain" of the control unit, managing all core functions: data processing from up to 64 detector heads, alarm logic, system diagnostics, and communication with the ship's engine control system.

    Full Part Numbers:
    • 1-44782-K183X: Single power supply input
    • 1-44782-K183GL: Dual redundant power supply inputs
    Status: Legacy/Discontinued (Sourced as refurbished/new surplus for marine maintenance).
    2. Core Specifications
    • System Compatibility: Graviner MK6 OMD Control Unit
    • Detector Capacity: Manages up to 64 detector heads (8 engines max)
    • Communication: RS-485 serial link to detectors
    • Power Supply: 24 VDC (X: Single; GL: Dual Redundant)
    • Environmental: -25°C to +70°C; Marine-grade (anti-corrosion, anti-vibration)
    • Construction: Industrial-grade PCB with conformal coating
    • Certifications: Class-approved for marine (SOLAS), CE
    3. Key Functions
    • Data Acquisition: Reads oil-mist density from all remote detectors
    • Alarm Logic: Triggers Average/Deviation alarms & engine slowdown/shutdown
    • Self-Diagnostics: Continuously monitors system health & fault reporting
    • Control I/O: Interfaces with ship's ECR, CMS, and alarm panels
    • Optics Test: Performs calibration & health checks on detector heads
    4. Typical Applications
    Exclusively installed as the core control board for:
    • Graviner MK6 Oil Mist Detection Systems
    • Marine diesel engines (MAN B&W, Wärtsilä) for crankcase explosion protection
    • Ship engine rooms (bulk carriers, tankers, container vessels)
    • Retrofitting & maintaining legacy MK6 OMD systems
    Graviner © Marine Safety Spare


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