Wind Speed and Direction Sensor for Digital Indicator with Alarm

This model is an airplane type wind speed and direction sensor that can transmit the measured data to the indicator to display wind speed in digital and wind direction with LED, and also output alarm.
The digital indicator with alarm is purchased separately.

No. 7910-00 is a wind speed and wind direction sensor using by connecting with No. 7910-50 indicator with alarm.   The indicator inputs the signals that are output from this sensor and displays instantaneous and mean values of wind speed in digital and 16 azimuth for wind direction with LEDs.

The alarm value that is output from the indicator can be arbitrarily set and are transmitted to a warning lump and buzzer.  Furthermore, it is available to add analog output and digital output (RS-422) at option as a external output.



Brushless potentionmeter for wind direction and optical pulse for wind speed are adopted
Wind direction is indicated with LED (16 azimuth) and wind speed (instantaneous and mean) is indicated with digital figures.
Three alarm outputs (alarm 1, 2 adn 3)  are provided.   When the values reach the thresholds, it operates alarm with relay contact, warning lump and buzzer sound.


No.7910-00 Wind speed and direction sensor for an indicator with alarm function (W639-ED1)

Applicable indicator No.7910-50 Wind speed and direction indicator with alarm function (WVAT6D0-3-00)
Detection method Wind direction: counter balanced tail: brushless potentiometer: 0 to 360°
Wind speed: Propeller: photoelectric pulse type
Measuring range Wind direction: 0 to 360°
Wind speed: 2 to 90m/s
Accuracy Wind direction: ±5°
Wind speed: ±0.5m/s (at less than 10m/s)  ±5%FS (at more than 10m/s)
Starting wind speed 2m/s
Withstand wind speed 108m/s (wind tunnel)
Output signal Wind direction: 0 to 360°/0 to 1VDC (built-in transmitter)
Wind speed: pulse output (60 pulse per one rotation of propeller)
Power requirements 12VDC±2V (supplies from indicator)
Operation ambient -20 to 50°C (without freeze on rotor)
Remote distance Within approx. 300m in use of CVVS 1.25mmcable
Output connecter NJW-207-PF10  cord dia.:Ø8.6 to 10.5mm
Materials Tail: carbon + polyester resin
Propeller & body: polycarbonate resin
Outer dimensions approx. Ø250mm (propeller) × (H)660×(D)510mm
Installation 3-Ø12.4×14.9mm (long hole) in a circle with Ø125mm 
Weight approx. 3kg


No.7910-50 Wind speed and wind direction indicator with alarm function (WVAT6D0-3-00)
Applicable sensors No.7910-00 Wind speed and direction sensor (W639-ED1)
Input signal Wind direction: 0 to 360°/0 to 1VDC
Wind speed: pulse output  (60 pulses per one propeller rotation)
Indication Wind direction: red LED 16 pcs. (16 azimuth)
Wind speed: red 7 segments LED 4 digits, height of character (upper and lower): 14.2mm
Display elements Wind direction: instantaneous or mean value (average of 10 minutes): changed by a buttom setting
Wind speed: instantaneous value and mean value (average of 10 minutes)
Display range Wind direction: 0 to 360° (16 azimuth)
Wind speed: 0.00 to 99.9m/s
Sampling interval approx. 1 sec. (lighting hold time)
Alarm (wind direction) Instantaneous or mean, Alarm setting range: two sections in 0 to 359°
Alarm (wind speed) Instantaneous or mean,  alarm setting range: 5 to 90m/s (Mutual setting in alarm 1, alarm 2 and alarm 3)
Alarm output (wind direction)
  • No voltage make contact , Contact capacity: 24VDC, 1A (resistance load) * the signal of the alarm contact is output from alarm 3
  • LEDs of 16 azimuth: LED blinks to indicate the alarm setting section
(Wind speed- alarm 1)
  • No voltage make contact:  contact capacity:24VCD, 1A (resistance load)
  • Green LED (slow blinks)
  • Buzzer (long intermittent sound)
(Wind speed-alarm 2)
  • No voltage make contact   Contact capacity: 24VDC 1A (resistance load)
  • Yellow LED blinks (fast blinks)
  • Buzzer sound (short intermittent sound)
(Wind speed-alarm 3)
  • No voltage make contact  Contact capacity 24VDC, 1A (resistance load)
  • Red LED blinks (continuous blinks)
  • Buzzer sound (continuous sound)
* If the alarm sound in wind direction is set, the alarm 3 is not usable for wind speed
Alarm reset
  • When contact output and wind speed value of LED display are smaller than the value of the alarm setting / the value of wind direction is out of the range to be set.
  • Buzzer sound (continuous sound): by the key operation of the front panel
Operation ambient 0 to 50°C, less than 90%rh (no condensing)
Remote distance approx. 300m max.  (in use of  CVVS 1.25mm2   cable)     
Case Steel plate,  desk top type (rubber foot, tilting stand)
Power requirements 100VAC±10%, 50/60Hz, approx. 20VA
Dimensions (W)200×(H)110×(D)200mm
Weight approx. 3.5kg


Option: Model: WVAT6D0-3-1☐  Analog output
Output channel 2 channels
Output CH1: Instantaneous or mean wind speed: 0 to  (10 to 90)m/s / 0 to 1VDC
CH2: Instantaneous or mean wind direction: 0 to 360° or 0 to 540° / 0 to 1VDC

* Select the output range and output elenents at ordering
  Output impedance: less than 500Ω


Option: Model: WVAT6D0-3-☐1 Digital output
Output channel 1 channel
Output signal RS-422
Output data instantaneous wind direction/wind speed, mean wind direction/wind speed,  instantaneous max./min. wind speed,  mean max./min. wind speed, operating state, power condition
Data transmission interval 0.25, 0.5, 1, 5, 10 sec.

Related Products

Digital Wind Speed and Direction Indicator with Alarm 7910-50 Digital Wind Speed and Direction Indicator with Alarm This is an indicator that displays wind speed and wind direction and also outputs alarm. The measured data are transmitted from a sensor connected. The wind speed and direction sensor is purchased separately.