Product Description
1. Primary Function:
This board acts as the central processing unit for a vehicle’s electronic compass system. Its main job is to:
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Receive raw magnetic field data from a fluxgate compass sensor.
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Process this data to calculate the vehicle’s true heading (direction).
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Apply tilt compensation to correct for the vehicle’s pitch and roll, ensuring an accurate heading even when driving on slopes or uneven terrain.
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Output a clean, stable, and usable heading signal to other devices.
2. Key Features:
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Tilt Compensation: Integrates with a tilt sensor to provide accurate heading regardless of the vehicle’s attitude. This is essential for equipment operating on construction sites, mines, or off-road.
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Input/Output (IO) Type 81: This designation refers to the specific electrical interface and communication protocol the board uses. “Type 81” is a legacy ELS designation for a particular set of input and output signals (e.g., specific voltage ranges, PWM, or serial data).
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Stabilized Output: Filters out small, rapid fluctuations in the compass signal caused by vibration or minor movements, providing a smooth and readable heading.
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Interface Hub: It often serves as an interface between the compass sensor, the vehicle’s display (like a heading indicator), and other systems like GPS receivers or guidance consoles.
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Robust Design: Built to withstand the harsh environmental conditions typical of heavy machinery, including wide temperature ranges, vibration, and electrical noise.
3. Common Applications:
This control board is found in a wide range of heavy-duty and specialized vehicles, including:
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Agricultural Equipment: Tractors, combines, sprayers for guidance and field mapping.
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Construction Machinery: Excavators, bulldozers, graders, and cranes.
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Mining Equipment: Haul trucks, loaders, and drills.
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Marine Vessels: For navigation and heading hold systems.
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Military Vehicles.
4. Technical Specifications (Inferred from Standard ELS Design):
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Manufacturer: ELS / Crane Electronics
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Unit Part Number: 432680802
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Revision: 8.02 (Indicates a specific engineering version with potential improvements or fixes over previous revisions like 8.01 or 7.xx).
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Input Power: Typically 12V or 24V DC, common for vehicle systems.
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Input Signals:
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Raw heading data from a fluxgate compass sensor.
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Pitch and Roll data from a tilt sensor.
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Possibly calibration or configuration inputs.
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Output Signals:
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Processed, tilt-compensated heading (e.g., analog voltage, PWM, or serial data like NMEA 0183).
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Signal to drive a heading display or gauge.
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Connectors: Uses standard industrial multi-pin connectors (e.g., AMP, Deutsch).
5. Why is the Revision (REV 8.02) Important?
The revision number is critical for replacement. A board with REV 8.02 may have different firmware, component layouts, or minor circuit changes compared to an older revision. For a reliable and compatible repair, it is essential to match the part number and the revision level whenever possible.
