Graviner 44782-K071Main Processor / Control PCB

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    • Product Code: 44782-K071
    • Availability: In Stock
    Graviner 44782-K071 (Main Processor Board)
    Part No.: 1-44782-K071-02
    Manufacturer: Graviner (Kidde, UK)
    Series: MK6 Oil Mist Detection (OMD) System
    Type: Main Processor / Control PCB
    Application: Marine Engine Crankcase Protection
    1. General Description
    The 44782-K071 (full model 1-44782-K071-02) is the **central main processor board** for the Graviner MK6 Oil Mist Detector (OMD) control unit. Often referred to as the "brain" of the system, this PCB manages all core computational tasks, including data analysis, alarm logic, and system supervision. It works in tandem with the interface board (44782-K183) to form the control unit's core electronics.

    Revision: Commonly supplied as REV 5 (latest hardware version).
    Status: Legacy/Discontinued (Widely available as refurbished or new surplus for marine maintenance).
    2. Core Functions
    • Data Processing: Analyzes oil-mist density signals from up to 64 detector heads
    • Alarm Algorithm: Executes Average & Deviation alarm calculations
    • System Control: Manages slowdown/shutdown relays for engine protection
    • User Interface: Drives the LCD display (1-43782-K120) and keypad
    • Diagnostics: Performs continuous self-test and fault detection
    • Communication: Interfaces with ship's CMS/ECR systems
    3. Technical Specifications
    • System: Graviner MK6 OMD Control Unit
    • Capacity: Supports max. 64 detectors / 8 engines
    • Power: 24 VDC (supplied via backplane)
    • Connectivity: RS-485, Relay Outputs, Analog I/O
    • Construction: Industrial PCB, conformal coating
    • Environment: -25°C to +70°C, Marine-grade (vibration resistant)
    4. Related Parts & Compatibility
    • Interface Board: 44782-K183 (K183X / K183GL)
    • Display: 1-43782-K120 (LCD Display)
    • Keypad: 1-39155-K047 (Function Key Membrane)
    • Control Unit: 53836-K170 (Bulkhead) / 53836-K206 (Flush)
    • Detector Head: D5622-001 / E3561-301
    Graviner © MK6 OMD Main Processor Spare


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