The Wärtsilä part 9800319 is a dedicated Engine Speed Indicator from the EA96x96.0s series. This is a critical sensor/transducer unit designed to accurately measure and report the rotational speed (RPM – Revolutions Per Minute) of a Wärtsilä engine.
This device is an essential component of the engine’s control and safety system, providing real-time speed data to the engine control unit (ECU), governor, and bridge instrumentation to ensure optimal performance, operational safety, and compliance with alarm and shutdown protocols.
2. Key Features & Specifications
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Manufacturer / Application: Wärtsilä. Specifically designed for Wärtsilä marine and stationary engines, ensuring perfect compatibility and performance.
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Model Series: EA96x96.0s S1 7 (This denotes the specific product family and design version).
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Function: Measures and indicates engine speed (RPM).
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Output Signal: 0 to 10 V DC analog voltage signal. This is a standard industrial signal where the voltage output is directly proportional to the engine speed (e.g., 0V = 0 RPM, 5V = 50% of max rated speed, 10V = 100% of max rated speed).
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Part Number: 9800319 – This is the unique identifier for ordering this specific component.
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Design: Built to withstand the harsh environmental conditions typically found in engine rooms, including resistance to vibration, temperature fluctuations, moisture, and electromagnetic interference.
3. Detailed Functionality
The speed indicator works by detecting the rotational speed of the engine, typically from a gear tooth or key phasor on the crankshaft or camshaft. It converts this mechanical rotation into a clean, precise electrical signal.
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Signal Provision: The 0-10V output signal is fed to various systems:
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Engine Control Unit (ECU): For precise fuel injection and timing control.
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Tachometer / Gauge: To display the RPM to the operator.
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Alarm and Safety Systems: To trigger warnings for overspeed or underspeed conditions and initiate automatic shutdowns if pre-set limits are exceeded.
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Data Logging Systems: For recording engine performance and operational history.
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4. Typical Applications
This component is used in a wide range of applications where reliable Wärtsilä engines are deployed:
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Marine Propulsion: Main engines in commercial vessels, ferries, and workboats.
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Auxiliary Power: Diesel generator sets (gensets) on ships and offshore platforms.
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Power Plants: Stationary engines for land-based power generation and grid support.
5. Why Choose a Genuine Wärtsilä Part?
Using a genuine Wärtsilä component like part #9800319 ensures:
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Perfect Compatibility: Guaranteed to interface correctly with the engine’s control system.
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Reliability and Accuracy: Manufactured to the highest quality standards for precise and dependable operation.
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Long-Term Performance: Built to last in demanding environments, reducing the risk of failure.
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Warranty and Support: Backed by Wärtsilä’s global service and technical support network.











