Pulse Generator 200673

Pulse Generator 200673

Function:

The pulse generator (part number 200673) is a critical speed sensing device. Its primary role is to monitor the rotational speed of the engine's crankshaft. It generates a precise electrical signal (pulse train) whose frequency is directly proportional to the engine's RPM. This signal is the fundamental input for the engine's governing and control system (e.g., the ECM - Engine Control Module).

Usage and Key Features:

Installation: It is typically mounted on the engine block, in close proximity to a dedicated timing wheel or a ring gear on the flywheel/crankshaft. As the gear teeth pass the sensor's magnetic tip, they disrupt its magnetic field, generating voltage pulses.

Signal Provision: The generated pulse train is transmitted via its electrical connection to the control unit. This allows the system to:

Accurately measure and regulate engine speed.

Detect overspeed or underspeed conditions for immediate protective action.

Provide crucial timing information for fuel injection and ignition sequencing.

Maintenance: The sensor requires no active configuration. Key operational considerations are correct air gap adjustment during installation, ensuring a clean target wheel, and verifying the integrity of its wiring and connections against damage or interference.

In summary, the pulse generator 200673 acts as the "heartbeat monitor" for the engine, providing the essential speed data that enables safe, efficient, and reliable automated control.