The NASA Marine CLIPPER Wind system (E0216 refers to the complete package, including display and sensor) is a straightforward and cost-effective digital instrument for displaying apparent wind speed and direction on marine vessels. It features a clear, backlit LCD with a graphical 360° wind direction indicator and a numerical readout for wind speed (in knots, MPH, or m/s). Designed for easy installation, it provides essential wind data for navigation and sail trim.
Technical Specification
Display Unit (Clipper Wind Display):
- Display Type: LCD (Liquid Crystal Display)
- Backlighting: Yes, with 9 levels of adjustable backlighting for night visibility.
- Wind Speed Display:
- Range: 0 to 99.9 Knots (Kts)
- Units: Selectable between Knots (Kts), Miles per Hour (MPH), or Meters per Second (m/s).
- Wind Direction Display:
- Range: 0 to 360 degrees
- Graphical Representation: 60 segments for a clear 360-degree indication of wind direction.
- Pointer Style: Selectable (e.g., single segment, multi-segments, “Windex” style).
- Case Size: 110 mm x 110 mm (standard Clipper instrument size).
- Depth Behind Panel: Approximately 30 mm.
- Mounting: Panel mount.
- Power Supply: Nominal 12V DC.
- Current Consumption: 10mA + (up to 10mA for backlight illumination maximum). Total ~20mA max.
- NMEA Input: NMEA 0183 (MWV sentence) for receiving wind data from the masthead unit.
- NMEA Boat Speed Input (for True Wind Calculation – on specific “True Wind” models): The standard Clipper Wind (E0216) primarily shows apparent wind. However, there’s a “Clipper True Wind Display” version that can show true wind if connected to a log (VHW sentence) or GPS (RMC sentence) for boat speed input.
Masthead Wind Sensor Unit:
- Type: Anemometer (cup type for speed) and wind vane (for direction).
- Output Data: NMEA 0183 4800 Baud data sentence MWV.
- Update Rate: The sensor sends data at a high rate, often cited as 10 updates per second for quick response to wind changes.
- Wind Speed Range: Typically 2 to 100 knots (though the display goes to 99.9 Kts).
- Accuracy: Wind speed +/- 2 knots, Wind angle +/- 3° (for newer V2 or wireless versions).
- Cable: Supplied with 20 meters of lightweight cable (connects to the display unit).
- Power Supply: Supplied by the display unit (typically 9mA current consumption for the sensor).
- Dimensions (Anemometer Head): Approximately 210 mm x 140 mm.
- Mounting: Mast mounting kit included.
Overall System:
- Supply Voltage: Nominal 12V DC (for the entire system).
- Total Consumption: Approximately 50mA + (25mA for max display illumination).
- Certifications: Designed to meet relevant EMC standards (e.g., EN60945:2002 for electromagnetic compatibility).
- Operating Temperature: Typically designed for standard marine operating temperatures.
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