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This Wind speed & direction indicator with Alarm receives signal data from Aero plane type wind speed &
direction sensor, and then processes the data using the built-in microprocessor to display various wind
speed and direction information and to output alarms.
The digital screens on the display make it easy to read instantaneous and mean wind speed and wind
direction. (It is necessary to switch between displays of instantaneous or mean wind direction by changing
the setting.)
There are three levels of alarms for wind speed: alarms 1, 2 and 3, each of which can be set for the desired
instantaneous or mean wind speed by using the push-button switches on the front panel.
There is also a wind direction alarm, for which a range of wind direction can be set.
Each alarm signal of Alarm 1, 2 and 3 is output via a relay contact. When an alarm is activated, the alarm
light turns on and the buzzer starts sounding.
In addition, external output by analog and digital output (RS-422) are possible at option.
I.
Specifications on Model WVAT6D0-3-10 Wind Speed & Direction Indicator with Alarm
1. Compatible sensor : Model W639-ED1 Airplane Type Wind Speed & Direction Sensor
2. Input voltage
: Wind speed
: Photoelectrical pulse: 60 pulses per one propeller rotation
Number of propeller rotation: 3081rpm at 60m/s
Wind direction : Brushless potentiometer: 0 to 360°
3. Display output
. Display element: Wind speed
: 7-segment red LED, 4 digits (3 digits for data)
(Instant: upper, Mean: lower)
Height of character: 14.2mm
Wind direction
: Red LED: 16 pcs.
Azimuth position : 16 Azimuth red LED
. Low brightness: always on
. High brightness: position indicated lights
. Display content: Wind speed
: Instant (upper), Mean for 10 min. (lower): always display
Wind direction
: Instant or Mean for 10 min.: switched by a key setting
Instant: Yellow LED lights, Mean: Red LED lights
. Display range
: Wind speed
: 0.00 to 99.9m/s
Wind direction : 0 to 360° (16 Azimuth)
. Update interval
: approx. one second (lighting hold time)
4. Operation board
: Push-button type (MODE, UP (
), DOWN (
), BUZZER (OFF)/ [ENT])
5. Alarm output
. Alarm judgement criteria:
Wind speed : Instantaneous or mean
Wind direction: Instantaneous or mean
* Alarm judgement criteria is a common setting in Alarm 1, 2 and 3
* When alarm for wind direction is used, Alarm 3 for Wind speed cannot be used.
. Alarm setting value : Wind speed
: 5 to 90m/s (Alarm 1, 2 and 3)
Wind direction : 0 to 359° (2 alarm sections)
. Alarm fixed time
: 0 to 60 sec.
: Mutual setting in Alarm 1, 2 and 3
. Alarm release time : 3 to 60 sec.
: Mutual setting in Alarm 1, 2 and 3
