LCJ CAPTEURS CV3F series, User Manual, Page: 2 / 8

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Principle of operation: how the equipment works
The sound, the ultrasonic sound is conveyed by the movement of the fluid in which it crosses. The
electroaccoustic transducers
1
communicate between themselves two by two by ultrasonic signals
2
to
determine, following the orthogonal axes, the wave transit time differences induced by the air flow
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.
The measurements are combined in an integrated calculator in order to establish the wind module and its
direction in relation to a reference axis. The temperature measurements are used for calibration
corrections.
CV7 Transducers communicate between themselves delivering four independent measures while head
wind measured vectors are preferably used for calculations.
This method gives a sensibility of 0,25 knots, a dynamic of 80 knots and an excellent linearity.
The effect of an inclination
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of the wind sensor is partially corrected due to the shape given by the space.
Delivery contents :
CV7 sensor
Support and clamp
25 m cable, 4 conductors
User’s notice
CV7 Software configuration
Characteristics
Numerical output signals : NMEA0183
®
, MWV, XDR or
specialised program.
Wind sensor sensibility : 0,25 knots
Resolution : 0,1 knots
Wind sensor range : 0,25 to 80 knots
Directional sensibility : +/- 1 degree
Resolution : 1 degree
Power supply : 10 to 14 V DC 12 mA
Temperature range : -10 to 55 ° C
Weather proofing : IP67
Weight of the head : 150 g (including the support and clamp :
230g)
Optional accessories :
ST option : compatible with ST40, ST60
BG option : compatible with network, Hydra, Hercule
SIL options: compatible with NEXUS
BARO option : measurement of the atmospheric pressure
StatFixBaro : CV7 software program
Vertical fixation adaptor for CV7
Numerical transmission speeds 4 800 or 38 400 baud / sec
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Programmable parameters :
Angle correction in degrees
Smoothing time constant of speed and direction: 1, 2, 4, 8, 16 s
Speed units in knots, m/sec, km/h
Temperature units Centigrade or Fahrenheit
NMEA
®
interface formats or specialised programs.
EN 55022 EN 55024
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330mm 80