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Walker 7080


Walker 7080 is an integrated log, wind and weather system that includes a true wind option. Ship’s speed and distance travelled is derived from a Walker electromagnetic (EM) log transducer. Alternatively, log NMEA 0183 serial data may be used. Calibration of the EM log may be performed using ship’s GPS. Wind speed and direction is derived from input relative wind NMEA serial data. A comprehensive range of Walker wind sensors are available. True wind data can be calculated given suitable inputs.

The weather data functions include measurement of barometric pressure, air temperature and humidity by sensors housed in a single tower and water temperature via a sensor installed in a seawater inlet pipe.

This compact, cost effective system takes advantage of state-of-the-art electronics to process log, wind and weather sensor inputs, and outputs serial data on a IEC61162-1 (NMEA 0183) data bus.

Log, wind and weather elements may be specified separately or in various combinations.

  • Various masthead sensor options.

  •  Digital display to DIN 43700 pattern -

  • 144x144 for log speed and distance


  • Digital display to DIN 43700 pattern -

    144x144 for wind speed and direction combined with analogue display of wind direction.

  • RELATIVE and TRUE wind data display capability subject to appropriate NMEA data to master unit.

  • Facility for 64 speed log calibration points.

  • Three methods of calibration, i.e. measured mile, GPS (semi- automatic), known speed.

  • IEC61162-1 (NMEA 0183) interface to ship systems.

  • Ease of installation, use and service.

  • Weather data functions: Barometric, pressure, Barometric pressure trend, Air Temperature, Humidity and Water temperature.


Operating Principle: Log: Electromagnetic type which generates a low frequency AC field

System Accuracy: Equal or better than 2.0%

Repeaters: Dimmable organic LED (OLED)

                    requiring no backlight

Log Range: Speed -20 to +80 knots

                     Distance 0 to 99999.9 NM

Wind Range: Speed: 0 to 120 knots

                      (m/sec & Kph option to be stated if required) True to North capability with suitable inputs Direction: 0° to 180° to 0° or 0° to

                      360° OLED digitalRing of 72 LEDs in 5° steps

Weather: Barometric pressure:
                 Range: 300mB to 1200mB
                 Accuracy: +/- 1.5mB between 10°C / 40°C Barometric Trend indicator
                 Air temperature:
                 Range: -25°C to +55°C
                 Accuracy +/- 0.3° at 25°C
                 Range: 0 to 100%
                 Accuracy +/- 2% (over 10% to 90% Rh) Water temperature:
                 Range: -10°C to +55°C
                 Accuracy: +/- 0.5°

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