EV1 Evolution ECU Sensor

The EV1 Evolution sensor (part number E70096) is the decision-making core of Raymarine autopilot systems. It replaces older compasses and integrates a 9-axis attitude and heading reference system (AHRS) to monitor the boat's movements in three dimensions.

Unlike traditional fluxgate compasses that require complex calibration procedures at sea, the EV1 sensor uses semiconductor technology with automatic linearization. It adapts in real time to navigation conditions and the boat's dynamics.

No, no complex manual calibration is required. The EV1 sensor features automatic linearization technology that calibrates itself during navigation, greatly simplifying autopilot commissioning.

The EV1 sensor is fully compatible with Raymarine autopilot control heads, including the p70s, p70Rs models, as well as the older p70 and p70R generations.

The sensor can be installed indoors or outdoors. It is recommended to place it in an unobstructed location, at least 1 meter away from radio or VHF cables, and more than 2 meters from the beam of a radar or SSB radio to avoid electromagnetic interference.

Yes, the EV1 sensor is IPX6 and IPX7 certified, making it fully waterproof against powerful water jets and temporary immersion. It can therefore be installed outdoors on deck without any risk.

The 9-axis AHRS (Attitude Heading Reference Sensor) technology combines a 3-axis digital accelerometer and semiconductor sensors. This allows the autopilot to measure the boat’s heading, pitch, roll, and yaw with extreme precision.

The EV1 sensor is powered directly from the SeaTalkNG network. It does not require a dedicated power cable but connects via a spur cable to the network backbone.

The EV1 sensor natively communicates via Raymarine's SeaTalkNG protocol. It is also compatible with NMEA 2000 networks when using the appropriate adapter cable.

No, the EV1 sensor is designed as the standard choice for mechanical and hydraulic autopilot systems (paired with an ACU power unit). For Drive-by-Wire steering systems, the specific EV2 model must be used.

The EV1 sensor is very energy-efficient. It consumes only 30 mA on the SeaTalkNG network (LEN of 1), with an operating voltage range from 10.8 V to 15.6 V DC.

To ensure optimal accuracy, the sensor must be installed at least 1 meter away from any equipment transmitting radio signals (such as a VHF) and more than 2 meters from the path of a radar beam or SSB radio.

The EV1 sensor housing is very compact. It has a diameter of 140 mm. Its depth is 35 mm for flush mounting, and 95 mm if installed on its wall bracket.

Yes, the EV1 sensor offers flexible mounting options. It can be installed flush-mounted on deck or attached to a vertical bulkhead using the wall-mount bracket supplied with the unit.

For the automatic linearization procedure to run correctly, the boat must be sailing at a speed between 3 and 15 knots. If the speed falls outside this range, the process is temporarily paused.

The EV1 sensor operates in conjunction with Evolution series actuator control units (ACUs). It is compatible with models ACU-100, ACU-150, ACU-200, ACU-300, and ACU-400, depending on your boat's rudder size and type.

If navigation conditions become unfavorable (e.g., a speed below 3 knots), the automatic linearization process simply pauses. It will resume automatically as soon as the required conditions are met again.

The sensor connects to the network via a SeaTalkNG spur cable. It is usually supplied with a 1-meter cable, but different lengths can be used depending on your installation's specific requirements.

Absolutely. With its 9-axis attitude sensors, the EV1 continuously monitors pitch, roll, and yaw. This allows the autopilot to react instantly and maintain a precise heading even in rough seas.

Yes, although it uses Raymarine-specific SeaTalkNG connectors, the communication protocol is based on the NMEA2000 standard. Simply use a SeaTalkNG to DeviceNet (NMEA2000) adapter cable to integrate it into an existing NMEA2000 network.