CS1 speed sensor is an inductive sensor used to measure rotational engine rotational speed from ignition coil power or high voltage wires. The sensor is used when a vehicle doesn’t have an engine tachometer or when the gearbox ratio is not constant (hydrokinetic transmission). The sensor is designed to work with DC1 dyno controller.
- Controller connector and 5m connection cable included.
The sensor should be connected to the Engine Speed input in the controller.
The inductive sensor is best at detecting signals that have significant current. Example sources for signals are wires for:
- ignition coils power
- high voltage spark plug cable
Due to ignition spark characteristic, current signal on high voltage cable can be unstable, what can result in noisy speed signal. Best practice to use in this case is to use the sensor to read Engine / Roller speed ratio and then make measurements in constant ratio mode: Eng. speed source: calculated.