New Mountain Innovations NM150 Ultrasonic Weather Station
The New Mountain Innovations NM150 Ultrasonic Weather Station is the perfect choice for mobile professionals who require accurate real-time wind measurements while on the go, such as hazmat and fire mobile command centers, storm chasers, chemical spray operations, remote severe environments, maritime operations, and many more.
It is the only all-in-one
weather sensor that calculates true and apparent wind speed and direction,
barometric pressure, air temperature, relative humidity, dew point and wind
chill temperature. The internal compass and Global Positioning System,
calculates true wind speed and direction. The UV stabilized; compact housing
is fully waterproof and resistant to chemicals.
The cabled (not wireless) PC-based NM150 Ultrasonic Weather Station comes with
the professional version of Weatherview32 software. Data can be viewed in both digital and
analog format and can be continuously saved to a file. A display console is not available for this weather station, a personal computer is required.
How the New Mountain NM150 Ultrasonic Weather Station Works
The New Mountain NM150 ultrasonic wind sensor (ultrasonic anemometer) measures apparent wind speed and direction. The weather
station contains four ultrasonic transducers, visible through the four holes in the top of the sensor’s wind
channel (see figure 1). These transducers operate in pairs - one transducer injects a pulse into the air, and the
other (directly opposite to it) listens for the arrival of that pulse (see figure 2). Each pulse bounces off the anodized
aluminum plate at the bottom of the wind channel and is carried by the wind to arrive at the opposing transducer a
short time later. When there is no wind, the pulse travels at the speed of sound from the sender to the receiver.
Whenever the wind is blowing in that direction, the pulse will arrive sooner than if the air is still. Similarly, whenever
the wind is blowing in the opposite direction, the pulse will arrive later than if the air is still. The four transducers take
turns in sending and receiving pulses to cover all eventualities of wind direction. A built-in microprocessor combines
the measurements from all four transducers to calculate the resultant wind speed and direction. The sensor
monitors the air temperature, to compensate for the fact that the speed of sound in air changes with temperature.
(The aluminum plate heats up to prevent frost and moisture from altering the wind readings.) Flow disturbances
caused by the five posts are compensated for in software.
Every NM150 ultrasonic wind sensor
is individually calibrated in New Mountain's state-of-the-art wind tunnel, whose wind .measurements
are traceable to a National Institute of Standards and Technology (NIST)
Standard Reference Material. This testing provides compensation for variations in production as well as asymmetry in the airflow channel.
The NM150 has the unique ability to display both true and apparent wind. True wind is the
actual motion of the air relative to the earth. Apparent wind is the wind which an observer experiences while moving
or on a moving vehicle. It is the result of these two motions - the actual motion of the air (the true wind) and the
motion of the vehicle. If the vehicle is not moving, then the true and apparent wind will be the same.
The New Mountain NM150 utilizes a standard 1-14” UNS thread connection to
accommodate standard mounting hardware. The waterproof base connector assures trouble-free installation and
servicing, while a quick disconnect feature allows for easy removal. The NM150 ships with a 82 foot (25 meter) data cable, RS485 to RS232 converter, data cable serial interface adapter, 12 volt power supply, and owners guide. A number of optional accessories are also available, including a serial to USB converter.
Features:
Apparent Wind Speed (mph, km/h, or knots)
Apparent Wind Direction
True Wind Speed (mph, km/h, or knots)
True Wind Direction
Outdoor Temperature (ºF or ºC)
Relative Humidity (RH)
Dew Point Temperature (ºF or ºC)
Wind Chill Temperature (ºF or ºC)
Barometric Pressure (mb or inHg)
Global Positioning System (GPS)
Magnetic Compass Heading
Heading Relative to True North
True Wind Chill Temperature (ºF or ºC)
Specifications:
Wind Speed
Range: 0.5 to 99.9 knots (0.6 to 114.5 mph)
Resolution: 0.1 knot (.01 mph)
Accuracy: +/-1 knot (+/-1.1 mph) or +/- 4%, whichever is greater. Below 0°C (32°F) the wind speed may be less accurate.
Wind Direction
Range: 0° to 359°
Resolution: 1°
Sensitivity: +/-1.5° - Below 0°C (32°F) the wind direction may be less accurate.
Temperature
Range: -30° to 50°C (-22° to 122°F)
Resolution: 0.1°C (0.1°F)
Accuracy: +/-1.5°C (+/-2.7°F) at 2 knots (2.3 mph) wind speed
Compass Accuracy: +/-2° static heading
Barometric Pressure
Range: 850 to 1150 mb (25 to 34 inHg)
Accuracy: +/-1.5%
Relative Humidity
Range: 10 to 95% RH
Accuracy: +/-4% RH
Operating Frequency: 40 KHz
Supply Voltage: 10 Vdc to 16 Vdc
Power Consumption: <100 mA in normal operation
Sensor Baud Rate: 4,800 bps (can be increased to 38,400 bps with a command)
Sensor Pole Mount Thread Size: 1-14” UNS (Unified National Standard)
Dimensions:
Computer Requirements (Professional version of Weather View 32):
Operating System: Windows NT 4.0+, 2000, XP, Vista, Windows 7
Processor: Pentium 1 GHz or above
RAM: 512 mb or above
Hard disk: 120 mb free space (plus 50 mb per year for data storage)
CD-ROM disk drive
Keyboard and mouse
RS232 Compatible COM Port or USB port with USB to Serial adapter
For Window Vista users (per Weather View 32 Help):
Exit out of Weather View 32
Go to the computers Desktop
Right-Click on the wv.bat icon if running 32 bit version of Vista
Right-Click on the wv64.bat icon if running 64 bit version of Vista
Click the “Run as Administrator” option
When asked “Windows needs your permission”, select Continue
A black window will appear and disappear
Start Weather View 32
Some Vista setups seem to be affected by a known Microsoft issue which causes
your computers desktop to act strange and requires a re-boot after 1 to 3 hours of use.
If this is occurring on your system click here to get a fix from Microsoft. If the problem is not resolved, call Tech Support at 503-864-3217.
Satisfaction
Guaranteed!
Try this product for 30 days and if you are not completely satisfied, you may return it for an exchange or a refund of the purchase price (less our actual shipping costs). All products also come with a minimum of a one year manufacturer warranty.
Delivery Options: Free shipping is included on orders over $50. During checkout you'll have additional methods to choose from, including expedited options.
"At WeatherShack, we know and love weather stations and related products. We stock these products in our own warehouse and work with them every day. We also strive to provide excellent customer service. We respectfully ask for your business and hope you'll give us the opportunity to serve you."
-- The Staff at WeatherShack.com
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