• Anemometer Thies First Class Advanced X

    • Available in heated version of cold climates
    • Intelligent optically-scanned cup anemometer

    Thies First Class Advanced X is classified acc. to IEC 61400-12-1 Ed. 2.0 (2017-03). It has been designed to measure:

    • Horizontal wind speed
    • Absolute and relative air pressure
    • Inclination X, Y and Z
    • Acceleration, frequency and amplitude of vibration measurement in X, Y and Z

    The anemometer is designed for measuring of wind resources for assessment reports and power curves. The sensor is characterized by minimal deviation from cosine line, optimized dynamic behavior even at highly intense turbulences, minimal overspeeding, low starting value and optimized oblique inflow behavior. It requires only low maintenance thanks to its low-inertia and ball-bearing cup star. For winter operation the electronically regulated heating guarantees smooth running of the ball bearings and prevents icing of shaft and slot.

    https://www.ammonit.com/media/filer_public/a1/c3/a1c31266-3d56-421b-874c-c1577714087d/anemometer_thiesfirstclassadvancedx_s11200-h.pdf, https://www.ammonit.com/media/filer_public/f9/61/f9612ceb-b5a4-4539-be84-e2968c0ff619/summary_thies_fc_advancedx_0113001_0113005_final.pdf
  • Anemometer Thies First Class Advanced II

    • Available in heated version for cold climates

    Optically-scanned cup anemometer
    Thies First Class Advanced gives outstanding performance. The sensor has been classified acc. to IEC 61400-12-1 Edition 2.0. It gives optimal dynamic performance with the following characteristics:

    • High accuracy
    • Minimal deviation from cosine line
    • Excellent behaviour to turbulences
    • Minimum overspeeding Small distance constant
    • Low start up value
    • Low power consumption
    • Digital output

    The sensor is designed for measuring the horizontal wind velocity in the field of meteorology, climate research, site assessment, and the measurement of capacity characteristics of wind power systems (power curves). The patented design is the result of long testing in the wind tunnel. The sensor features dynamic behaviour also at high turbulence intensity, minimal overspeeding, and a low starting values. It requires only low maintenance thanks to its low-inertia and ball-bearing cup star. The anemometer is equipped with electronically regulated heating to guarantee smooth running of the ball bearings and prevent icing of shaft and slot during winter operation.

    https://www.ammonit.com/media/filer_public/fa/4f/fa4f434c-2e8e-473b-b884-dfb49b60756e/anemometer_thiesfirstclassadvanced_ii_s11101-h.pdf, https://www.ammonit.com/media/filer_public/81/f9/81f99e3f-161b-4160-92fb-822b6f511d61/summary_thies_fc_advanced_ll_0113001_0113005_final.pdf
  • Anemometer Thies Compact (Heatad)

    • Opto-electronic wind speed sensor
    • “Low Power” - Frequency output signal
    • Range 0.5 ... 50 m/s
    • Resolution < 0.1 m/s
    https://www.ammonit.com/media/filer_public/aa/dc/aadc6233-1bec-45d0-98c9-530010ffacc6/anemometer_thiescompact_s12100h.pdf
  • Anemometer Windspeed (Vector) A100LM/PC3

    • Opto-electronic wind speed transmitter
    • Classified according to IEC standard
    • “Low Power”, high frequency output signal
    • Range 0.2 ... 75 m/s
    • Resolution < 0.5 m/s
    • Low power, pulse output only
    • Consumes 1 mA while operating from the logger’s battery supply.

    Measurement principle
    The low-inertia 3-cup rotor is set into rotation by the wind. The wheel is scanned optoelectronically and the measuring value is available at the output as a digital signal.

    https://www.ammonit.com/media/filer_public/78/e9/78e9e317-7b9f-4036-852a-cd09ff734018/anemometer_vector_s14100-h.pdf
  • Anemometer WindSensor (Risø) P2546D-OPR

    • MEASNET calibrated anemometer
    • One-piece rotor anemometer head
    • Low threshold speed
    • Short distance constant
    • Negligible overspeeding
    • Angular response independent of wind speed
    • Symmetrical geometry
    • No external power source
    • Individually calibrated compliant with IEC 61400-12-1
    https://www.ammonit.com/media/filer_public/88/ba/88baa992-c8b8-4d33-8035-766d8d3c97b9/anemometer_windsensorp2546a-opr_s16100c.pdf
  • Anemometer Young Propeller for vertical measurements, CFT Propeller 27106T

    • Low threshold precision air velocity sensor
    • Fast response helicoid propeller
    • Vertical air measurements

    The Propeller Anemometer is a precision, single axis wind measuring instrument. The anemometer utilizes a fast response helicoid propeller and high quality tach-generator transducer to produce a DC voltage that is linearly proportional to air velocity.

    Airflow from any direction may be measured, however, the propeller responds only to the component of the air flow which is parallel to its axis of rotation. Off-axis response closely approximates a cosine curve with appropriate polarity; with perpendicular air flow, the propeller does not rotate.

    The output signal is suitable for a wide range of signal translators and data logging devices. The Model 27106T with carbon fiber thermoplastic (CFT) propeller offers high sensitivity and durability.

    https://www.ammonit.com/media/filer_public/26/36/2636bb03-8c6d-4a84-bb69-f85f70e77747/anemometer_propeller_model27106t_s17100.pdf
  • Anemometer Vaisala WAA252 (Heated cup)

    • Non-freezing, all-weather wind set for arctic conditions
    • Fully heated anemometer and wind vane (heating in cups and vanes, sensor bodies and bearings prevent snow build-up and ice formation)
    • High performance, accurate wind speed and wind direction measurement
    • Low measurement starting threshold
    • Conical anemometer cups provide excellent linearity
    https://www.ammonit.com/media/filer_public/3a/14/3a146db6-0702-41f9-9080-b08aa6e6e744/anemometer_vaisalawaa252_s15100h.pdf
  • Wind Vane Thies Compact TMR

    • TMR wind direction sensor
    • Output: 10-bit serial-synchronous (compatible with Ammonit Meteo-40 data loggers)
    • Measurement range 0 ... 360°
    • Accuracy ±1°

    The wind direction is detected by a low-inertia wind vane. The axis of the wind vane is running in ball bearings and carries a diametrically magnetized magnet at the inner end.

    The angle position of the axis is canned contact-free by a magnetic angle sensor, (TMR = Tunnel Magneto Resistance) which gives two sinus- and cosinus-dependent voltages as output signal.

    A connected micro-controller calculates from this voltages the wind direction in 1024 sectors (0.35°/sector). Related to sector 1 is the wind direction 0°-35°, sector 1024 corresponds to the wind direction 359.65°-360°.

    https://www.ammonit.com/media/filer_public/8f/86/8f86b235-5e20-42af-88d8-0a45cc18a1ca/windvane_thiescompacttmr_s22100-s22100h.pdf
  • Wind Vane Thies First Class TMR (Heated)

    • New and improved version of First Class wind vane
    • High level of measuring accuracy (0.5°) and resolution (0.35°)
    • Output: 10-bit serial-synchronous (compatible with Ammonit Meteo-40 data loggers)
    • Measurement range 0 ... 360°
    • Low current consumption (3.3V @ 1.4 mA)

    The wind vane serves for the detection of the horizontal wind direction in the field of meteorology and environmental protection. The axis of the wind vane is running in ball bearings and carries a diametrically magnetized magnet at the inner end. The angle position of the axis is scanned contact-free by a magnetic angle sensor (TMR-Sensor, Tunnel Magneto Resistance) through the position of the magnet field. As the sensor is operated the magnetic saturation, effects by external magnetic fields can almost be eliminated. The connected electronics calculated the angle position of the axis and provides the respective serial-synchronous output signal.

    https://www.ammonit.com/media/filer_public/11/20/1120fb64-b3e4-443b-8533-d86144fd2ca8/windvane_thiesfirstclasstmr_s21110h.pdf
  • Wind Vane Thies Compact POT

    • Potentiometric wind direction transmitter
    • Full range 0 ... 360°
    • High quality potentiometer 0 ... 2 kΩ

    Measurement principle

    With the help of a potentiometer the physical property is converted into an analogue resistor output signal. At zero the transducer has to pass the „north transition“ between the margins of zero and 2 kΩ.

    Wind direction signal conditioning and data processing in all Ammonit data acquisition systems carefully pays attention to this speciality.

    The wind vane can be equipped with an electronically regulated heating system in order to prevent ice from the bearings. To use this heating the connection cable must have additional cores and you should provide a sufficient power supply (mains connection).

    https://www.ammonit.com/media/filer_public/70/01/700126dc-7c4e-4093-8539-ed155f2e7ae5/windvane_thiescompactpotplug_s22200-s22200h.pdf
  • Wind Vane Thies First Class POT (Heated)

    • Improved version of First Class wind vane
    • Robust wind vane for highest demands
    • No wear of the potentiometer due to mechanical stress

    Measurement principle

    The electronic emulates the behaviour of a mechanical potentiometer but avoids the wear and aging of the mechanical devices.

    Wiring is compatible to the classic potentiometer wind vane to keep the high precision measuring constellation of the potentiometric wind vane when Ammonit Meteo­-40 data logger is used.

    The wind vane is available with an electronically regulated heating system in order to prevent ice from the bearings. To use this heating the connection cable must have additional cores and you should provide a sufficient power supply (mains connection).

    Heating

    The surface temperature of housing neck is >0 °C at 20 m/s up to
    -10 °C air temperature. At 10 m/s up to -20 °C the Thies icing stan-dard 012002 on the housing neck is applied. The heating is regulated with a temperature sensor.

  • Ultrasonic Anemometer Thies 2D - Heating in Arms

    Classified acc. to IEC 61400-12-1:2017
    Measurement of wind direction, wind velocity and virtual temperature
    Highest precision, maintenance-free, different heating options
    Digital & Analog outputs

    The Ultrasonic Anemometer 2D is designed to acquire the horizontal components of wind velocity and wind direction as well as the virtual temperature in two dimensions. Due to the measuring principle the instrument is ideal for inertia-free measurement of gusts and peak values.

    Wind velocity and direction

    The speed of propagation of the sound in calm air is superposed by the velocity components of an air flow in the direction of the wind. A wind velocity component in the propagation direction of the sound supports the speed of propagation; i.e. it increases if while a wind velocity component against the propagation direction reduces the speed of propagation.

    The propagation speed resulting from superposition leads to different propagation times of the sound at different wind velocities and directions over a fixed measurement path. As the speed of sound greatly depends on the temperature of the air, the propagation time of the sound is measured on each of the two measurement paths in both directions. This rules out the influence of temperature on the measurement result. By combining the two measuring paths which are at right angles to each other, the measurement results of the sum and the angle of the wind velocity vector are obtained in the form of rectangular components. After the rectangular velocity components have been measured, they are converted to polar coordinates by the digital-signal-processor of the anemometer and output as a sum and angle of wind velocity.

    Acoustic virtual temperature

    The thermodynamic interrelationship between the propagation velocity of sound and the absolute temperature of the air is defined by a root function. The physical interrelationship between sound velocity and temperature is ideal when measuring the air temperature as long as the chemical composition is known and constant.

    Heating

    The Ultrasonic is equipped with a sophisticated heating system, which keeps all outer surfaces that might disturb the data acquision in case of ice formation, efficiently on a temperature above +5°C. The converters carrying arms belong to the heated outer surfaces, as well as the ultrasonic converters itself and the housing – depending on the model.

    The Ultrasonic is able to acquire measuring data with high accuracy even in unheated state at temperatures down -40 °C. There is no temperature-depending quality of the measuring data. The heating is necessary only for avoiding ice formation on the instrument construction and the associated blockage of the run time data acquisition.

    https://www.ammonit.com/media/filer_public/02/bf/02bf4f58-03e0-4a48-b26f-1dbddb0ee452/ultrasonic_thies2d_s82100h-s82200h-s82300h-s82800h.pdf, https://www.ammonit.com/media/filer_public/09/87/0987785f-0359-46bb-9f7f-78fefc628766/summary_thies_2d_sonic_v11-classification.pdf
  • Ultrasonic Anemometer Thies 2D - Heating in Arms and Sensor Head

    • Classified acc. to IEC 61400-12-1:2017
    • Measurement of wind direction, wind velocity and virtual temperature
    • Highest precision, maintenance-free, different heating options
    • Digital & Analog outputs

    The Ultrasonic Anemometer 2D is designed to acquire the horizontal components of wind velocity and wind direction as well as the virtual temperature in two dimensions. Due to the measuring principle the instrument is ideal for inertia-free measurement of gusts and peak values.

    Wind velocity and direction

    The speed of propagation of the sound in calm air is superposed by the velocity components of an air flow in the direction of the wind. A wind velocity component in the propagation direction of the sound supports the speed of propagation; i.e. it increases if while a wind velocity component against the propagation direction reduces the speed of propagation.

    The propagation speed resulting from superposition leads to different propagation times of the sound at different wind velocities and directions over a fixed measurement path. As the speed of sound greatly depends on the temperature of the air, the propagation time of the sound is measured on each of the two measurement paths in both directions. This rules out the influence of temperature on the measurement result. By combining the two measuring paths which are at right angles to each other, the measurement results of the sum and the angle of the wind velocity vector are obtained in the form of rectangular components. After the rectangular velocity components have been measured, they are converted to polar coordinates by the digital-signal-processor of the anemometer and output as a sum and angle of wind velocity.

    Acoustic virtual temperature

    The thermodynamic interrelationship between the propagation velocity of sound and the absolute temperature of the air is defined by a root function. The physical interrelationship between sound velocity and temperature is ideal when measuring the air temperature as long as the chemical composition is known and constant.

    Heating

    The Ultrasonic is equipped with a sophisticated heating system, which keeps all outer surfaces that might disturb the data acquision in case of ice formation, efficiently on a temperature above +5°C. The converters carrying arms belong to the heated outer surfaces, as well as the ultrasonic converters itself and the housing – depending on the model.

    The Ultrasonic is able to acquire measuring data with high accuracy even in unheated state at temperatures down -40 °C. There is no temperature-depending quality of the measuring data. The heating is necessary only for avoiding ice formation on the instrument construction and the associated blockage of the run time data acquisition.

     

    https://www.ammonit.com/media/filer_public/02/bf/02bf4f58-03e0-4a48-b26f-1dbddb0ee452/ultrasonic_thies2d_s82100h-s82200h-s82300h-s82800h.pdf, https://www.ammonit.com/media/filer_public/09/87/0987785f-0359-46bb-9f7f-78fefc628766/summary_thies_2d_sonic_v11-classification.pdf
  • Ultrasonic Anemometer Thies 2D - Heating for extreme icing conditions

    • Classified acc. to IEC 61400-12-1:2017
    • Measurement of wind direction, wind velocity and virtual temperature
    • Highest precision, maintenance-free, different heating options
    • Digital & Analog outputs

    The Ultrasonic Anemometer 2D is designed to acquire the horizontal components of wind velocity and wind direction as well as the virtual temperature in two dimensions. Due to the measuring principle the instrument is ideal for inertia-free measurement of gusts and peak values.

    Wind velocity and direction

    The speed of propagation of the sound in calm air is superposed by the velocity components of an air flow in the direction of the wind. A wind velocity component in the propagation direction of the sound supports the speed of propagation; i.e. it increases if while a wind velocity component against the propagation direction reduces the speed of propagation.

    The propagation speed resulting from superposition leads to different propagation times of the sound at different wind velocities and directions over a fixed measurement path. As the speed of sound greatly depends on the temperature of the air, the propagation time of the sound is measured on each of the two measurement paths in both directions. This rules out the influence of temperature on the measurement result. By combining the two measuring paths which are at right angles to each other, the measurement results of the sum and the angle of the wind velocity vector are obtained in the form of rectangular components. After the rectangular velocity components have been measured, they are converted to polar coordinates by the digital-signal-processor of the anemometer and output as a sum and angle of wind velocity.

    Acoustic virtual temperature

    The thermodynamic interrelationship between the propagation velocity of sound and the absolute temperature of the air is defined by a root function. The physical interrelationship between sound velocity and temperature is ideal when measuring the air temperature as long as the chemical composition is known and constant.

    Heating

    The Ultrasonic is equipped with a sophisticated heating system, which keeps all outer surfaces that might disturb the data acquision in case of ice formation, efficiently on a temperature above +5°C. The converters carrying arms belong to the heated outer surfaces, as well as the ultrasonic converters itself and the housing – depending on the model.

    The Ultrasonic is able to acquire measuring data with high accuracy even in unheated state at temperatures down -40 °C. There is no temperature-depending quality of the measuring data. The heating is necessary only for avoiding ice formation on the instrument construction and the associated blockage of the run time data acquisition.

     

    https://www.ammonit.com/media/filer_public/02/bf/02bf4f58-03e0-4a48-b26f-1dbddb0ee452/ultrasonic_thies2d_s82100h-s82200h-s82300h-s82800h.pdf, https://www.ammonit.com/media/filer_public/09/87/0987785f-0359-46bb-9f7f-78fefc628766/summary_thies_2d_sonic_v11-classification.pdf
  • Ultrasonic Anemometer Thies 2D - Heating in Arms and Sensor Head - Overhead

    • Classified acc. to IEC 61400-12-1:2017
    • Measurement of wind direction, wind velocity and virtual temperature
    • Highest precision, maintenance-free, different heating options
    • Digital & Analog outputs

    The Ultrasonic Anemometer 2D is designed to acquire the horizontal components of wind velocity and wind direction as well as the virtual temperature in two dimensions. Due to the measuring principle the instrument is ideal for inertia-free measurement of gusts and peak values.

    Wind velocity and direction

    The speed of propagation of the sound in calm air is superposed by the velocity components of an air flow in the direction of the wind. A wind velocity component in the propagation direction of the sound supports the speed of propagation; i.e. it increases if while a wind velocity component against the propagation direction reduces the speed of propagation.

    The propagation speed resulting from superposition leads to different propagation times of the sound at different wind velocities and directions over a fixed measurement path. As the speed of sound greatly depends on the temperature of the air, the propagation time of the sound is measured on each of the two measurement paths in both directions. This rules out the influence of temperature on the measurement result. By combining the two measuring paths which are at right angles to each other, the measurement results of the sum and the angle of the wind velocity vector are obtained in the form of rectangular components. After the rectangular velocity components have been measured, they are converted to polar coordinates by the digital-signal-processor of the anemometer and output as a sum and angle of wind velocity.

    Acoustic virtual temperature

    The thermodynamic interrelationship between the propagation velocity of sound and the absolute temperature of the air is defined by a root function. The physical interrelationship between sound velocity and temperature is ideal when measuring the air temperature as long as the chemical composition is known and constant.

    Heating

    The Ultrasonic is equipped with a sophisticated heating system, which keeps all outer surfaces that might disturb the data acquision in case of ice formation, efficiently on a temperature above +5°C. The converters carrying arms belong to the heated outer surfaces, as well as the ultrasonic converters itself and the housing – depending on the model.

    The Ultrasonic is able to acquire measuring data with high accuracy even in unheated state at temperatures down -40 °C. There is no temperature-depending quality of the measuring data. The heating is necessary only for avoiding ice formation on the instrument construction and the associated blockage of the run time data acquisition.

     

    https://www.ammonit.com/media/filer_public/02/bf/02bf4f58-03e0-4a48-b26f-1dbddb0ee452/ultrasonic_thies2d_s82100h-s82200h-s82300h-s82800h.pdf, https://www.ammonit.com/media/filer_public/09/87/0987785f-0359-46bb-9f7f-78fefc628766/summary_thies_2d_sonic_v11-classification.pdf
  • Ultrasonic Anemometer Thies 3D - Heating in Arms and Sensor Head

    • Classified acc. to IEC 61400-12-1:2017
    • Measurement of wind direction & speed in 3 dimensions X, Y and Z
    • Real-time measurement
    • Highest precision, maintenance-free and heatable
    • Digital / analog outputs and inputs

    The Ultrasonic Anemometer 3D is designed to measure the horizontal and vertical components of wind velocity, wind direction and acoustic virtual temperature in 3 dimensions. The Ultrasonic Anemometer 3D consists of 6 ultrasonic transformers, in pairs facing each other at a distance of 200 mm. The three resulting measurement paths are vertical in relation to each other. The transformers function both as acoustic transmitters and receivers.

    In comparison to cup anemometers, the measuring principle provides for inertia-free measurement of rapidly changing variables with maximum precision and accuracy. It is particularly suitable for the measurement of gusts and peak values. The level of accuracy achieved when measuring the air temperature (acoustic virtual temperature) surpasses that of classical methods, in which the temperature sensors are used with a weather and radiation shield, following correction of the influence of damp occurring with certain weather situations.

    The maintenance-free and wearless anemometer needs no re-calibration, and is equipped with a heating for winter operation even under extreme conditions.

    All calculations are carried out by a high-capacity digital-signal-processor (DSP) within the propagation time of the ultrasonic signals with an accuracy basis of 32 bit. The instrument offers comprehensive statistic functions such as gliding averaging, standard deviation, co-variance etc., which can be selected via the digital interface. The gliding averaging can be set optionally in vectorial or scalar form, identically or differently for each parameter.

    Heating

    For a multitude of applications the continuous output of solid measuring data of the wind velocity and direction is an indispensable requirement to the measuring system, even under meteorological extreme conditions such as icing situations. The Ultrasonic is equipped with a sophisticated heating system. This system keeps all outer surfaces that might disturb the measuring value acquision in case ice formation, efficiently on a temperature above +5°C.

    Also the measuring arms belong to the heated outer surfaces, as well as additionally the ultrasonic transducer and the housing – depending on the model. The Utrasonic is in a position to generate measuring data with high accuracy even in unheated state at temperatures of up to below –40 °C. There is no temperature-depending quality of the measuring data. The heating is necessary only for avoiding the ice formation on the instrument construction, thus avoiding an involved failure in the measuring value acquistion.

     

    https://www.ammonit.com/media/filer_public/df/8e/df8e7f2e-840f-49ff-aa00-387a40b8609a/ultrasonic_thies3d_s83100h-s83300h.pdf, https://www.ammonit.com/media/filer_public/99/75/997522d2-5559-4996-90ab-f79871d24e62/summary_thies_3d_sonic_v1_1-classification.pdf
  • Ultrasonic Anemometer Thies 3D - Heating for extreme icing conditions

    • Classified acc. to IEC 61400-12-1:2017
    • Measurement of wind direction & speed in 3 dimensions X, Y and Z
    • Real-time measurement
    • Highest precision, maintenance-free and heatable
    • Digital / analog outputs and inputs

    The Ultrasonic Anemometer 3D is designed to measure the horizontal and vertical components of wind velocity, wind direction and acoustic virtual temperature in 3 dimensions. The Ultrasonic Anemometer 3D consists of 6 ultrasonic transformers, in pairs facing each other at a distance of 200 mm. The three resulting measurement paths are vertical in relation to each other. The transformers function both as acoustic transmitters and receivers.

    In comparison to cup anemometers, the measuring principle provides for inertia-free measurement of rapidly changing variables with maximum precision and accuracy. It is particularly suitable for the measurement of gusts and peak values. The level of accuracy achieved when measuring the air temperature (acoustic virtual temperature) surpasses that of classical methods, in which the temperature sensors are used with a weather and radiation shield, following correction of the influence of damp occurring with certain weather situations.

    The maintenance-free and wearless anemometer needs no re-calibration, and is equipped with a heating for winter operation even under extreme conditions.

    All calculations are carried out by a high-capacity digital-signal-processor (DSP) within the propagation time of the ultrasonic signals with an accuracy basis of 32 bit. The instrument offers comprehensive statistic functions such as gliding averaging, standard deviation, co-variance etc., which can be selected via the digital interface. The gliding averaging can be set optionally in vectorial or scalar form, identically or differently for each parameter.

    Heating

    For a multitude of applications the continuous output of solid measuring data of the wind velocity and direction is an indispensable requirement to the measuring system, even under meteorological extreme conditions such as icing situations. The Ultrasonic is equipped with a sophisticated heating system. This system keeps all outer surfaces that might disturb the measuring value acquision in case ice formation, efficiently on a temperature above +5°C.

    Also the measuring arms belong to the heated outer surfaces, as well as additionally the ultrasonic transducer and the housing – depending on the model. The Utrasonic is in a position to generate measuring data with high accuracy even in unheated state at temperatures of up to below –40 °C. There is no temperature-depending quality of the measuring data. The heating is necessary only for avoiding the ice formation on the instrument construction, thus avoiding an involved failure in the measuring value acquistion.

     

    https://www.ammonit.com/media/filer_public/df/8e/df8e7f2e-840f-49ff-aa00-387a40b8609a/ultrasonic_thies3d_s83100h-s83300h.pdf, https://www.ammonit.com/media/filer_public/99/75/997522d2-5559-4996-90ab-f79871d24e62/summary_thies_3d_sonic_v1_1-classification.pdf
  • Ultrasonic Anemometer Lufft 2D Compact - V200A-UMB (Heated)

    • Robust design and precise measurement of wind speed, wind direction, air pressure and calculation of acoustic virtual temperature
    • Maintenance-free - no mechanical parts
    • Ideal for renewable energy applications
    • Heating for use in cold weather climates

    Extremely precise and maintenance-free measurement of wind velocity and wind direction as well as calculation of acoustic virtual temperature. The ultrasonic wind sensor is seawater-resistant and designed without mechanical parts as they have been used with traditional “cups and vanes”. The sensor is heated to remove frost and ice formation from the sensor.

    The digital or analog output delivers instantaneous, average, min or max value with flexible measuring rate. We recommend using the Modbus RTU protocol for applications with Ammonit Meteo-40 data loggers.

    Wind speed and direction

    The wind measurement element uses 4 ultrasound sensors which take cyclical measurements in all directions. The resulting wind speed and direction are calculated from the measured run-time sound differential.

    Virtual temperature

    Due to the physical relationship between the velocity of propagation of sound and the air temperature, the approximate ambient temperature can be determined with the aid of ultrasound sensors.

    Air pressure

    The air pressure is measured by an integrated air pressure sensor.

    https://www.ammonit.com/media/filer_public/98/ac/98ac354c-c91d-4f74-965d-e2b0cf0e4c36/ultrasonic_lufftv200a_s85200h.pdf
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