Name: LCJ CV7 | F&C Marine
SKU: CV7
Price: 702.00 GBP
Availability: InStock

Description

LCJ CV7 ultrasonic wind sensor

LCJ CV7 is a short-arm masthead ultrasonic wind sensor supplied in the standard NMEA 0183 configuration with a 25m cable. It is intended for sailboat and marine applications where wind speed and direction need to be measured without conventional rotating cups or a vane. Correct performance depends on mounting position, sensor alignment, power, cable routing and the receiving instrument. F&C Marine can help confirm the complete installation before supply.

Ultrasonic wind measurement

CV7 measures wind electronically without mechanical rotating measuring parts. This can reduce maintenance associated with bearings and moving vanes, but the sensor still needs clean airflow. Nearby mast sections, aerials, standing rigging and other equipment can disturb the air reaching the sensor and influence readings. Mount the sensor where these effects are minimised and follow the manufacturer’s orientation requirements so wind direction is referenced correctly to the vessel.

NMEA 0183 integration

The standard CV7 configuration in this listing is the NMEA 0183 version. Before installation, identify the instrument, display, autopilot, logger or other equipment that will receive wind information and confirm its data interface. Where several devices need the same data, check the complete talker/listener arrangement rather than assuming that an existing connection can simply be shared. Correct baud rate, polarity and wiring matter, and a data-network problem can look like a failed sensor.

Masthead mounting and cable route

The sensor is supplied with a 25m cable, so plan the route from masthead to the receiving electronics before fitting. Protect the cable from chafe, sharp edges and crushing, allow service loops where appropriate and avoid placing strain on connectors. If replacing an older sensor, inspect the masthead bracket and existing route rather than automatically reusing them. Any damaged cable gland, unsealed penetration or corroded connection should be corrected as part of the installation.

Commissioning and wind-data checks

After fitting, confirm stable wind speed and direction and check the sensor orientation against the vessel centreline. Compare readings with expected conditions and verify the NMEA 0183 data at the receiving equipment. If wind information is repeated to several bridge devices, compare values at each destination. Check for intermittent data while other equipment is operating and record the final wiring, sensor alignment and receiving instruments for future service.

Maintenance and troubleshooting

Although there are no conventional cup or vane bearings, inspect the sensor periodically for contamination, physical damage and secure mounting. Check exposed cable and connectors for deterioration. If wind data becomes intermittent or disappears, test supply voltage and NMEA wiring before replacing the sensor. If direction is consistently wrong but speed is plausible, review physical alignment and any software offset or configuration in the receiving system.

Documentation and related guidance

For current product information, see the LCJ Capteurs shop and LCJ support downloads. Manufacturer documentation should be the final reference for dimensions, wiring, NMEA sentences and mounting. F&C Marine’s ultrasonic vs mechanical wind-sensor guide and Marine Electronics Knowledge Base provide related technical guidance.

Official manuals, datasheets and brochures

LCJ marine brochures, manuals and downloads

Related technical resources

Before ordering LCJ CV7

Send the vessel type, existing wind equipment, photographs of the masthead and current mounting, approximate cable route, supply information and the make and model of the equipment that needs wind data. If replacing a fault, include symptoms and previous tests. F&C Marine can then help confirm whether the standard LCJ CV7 NMEA 0183 version is correct and identify any adaptor, interface or installation work before quotation.