Description
Nasa MeteoMan
For a yachtsman planning a voyage, the ability to predict the weather is essential. The rate of change of barometric pressure and history of wind speed can be an invaluable indicator of imminent conditions.
Many sailors rely on low cost domestic barometers, which are inaccurate, have low resolution and very poor history. Several quality paper recording instruments exist but are delicate, fiddly to use and rely on paper which can jam when damp. The MeteoMan overcomes all these problems. It provides an accurate, high resolution barograph recording in excess of five days data on barometric pressure and wind speed. It is easy to use, reliable, rugged and draws very little power from the boat’s battery.
The Meteoman can be used with an NMEA Wind sensor which provides wind direction, wind speed and external temperature. The Meteoman provides reliable meteorological information for the yachtsman. The main display shows the wind speed and direction, the ambient temperature and the barometric pressure.
To assist in predicting future trends the unit also displays a precision barograph and an anemograph showing barometric pressure and wind speed for the previous five days.
In addition to the meteorological functions the unit includes a marine chronometer, a stop watch, a race countdown timer, display of internal temperature and battery voltage.
MeteoMan can be connected to an NMEA Clipper Wind system where it will get wind speed/direction data via the Clipper wind output.
Technical Specifications:
- Atmospheric pressure range: 850 to 1100mb (user adjustment to compensate for altitude)
- Wind direction (when fitted with NMEA wind sensor):
- 0 to 360 degrees (in relative mode)
- Port 180 degrees to Starboard 180 degrees (in nautical mode)
- Displayed in analogue and digital format
- Resolution 1 degree
- Pressure history:
- Range 1 950 to 1050mb
- Range 2 980 to 1030mb with 0.5mb resolution
- Real time clock:
- 12 or 24 hour format
- Race countdown timer 10 and 5 minutes
- Stop watch with split timing
- Recording time:
- 0 to 160 hours
- 0 to 80 hours
- 0 to 40 hours
- Temperature:
- Outside temperature (when fitted with NMEA wind sensor)
- Cabin temperature
- Resolution 1 degree centigrade
- Wind speed (when fitted with NMEA wind sensor):
- Maximum speed 100 knots
- Wind speed history
- Supply voltage:
- 9.0 to 15.0 volts
- The voltage is shown on the display with a resolution of 0.1 volts
- Range 1 0 to 100 knots
- Range 2 0 to 50 knots
- Range 3 0 to 25 knots
- Supply current:
- Operating current 100mA (when fitted with NMEA wind sensor)
- Operating current 150mA (with backlight illuminated)
- Standby current – less than 10mA
- Recording time:
- 0 to 160 hours
- 0 to 80 hours
- 0 to 40 hours
