Operation Manual True Air Speed Vario Sensor

Type True-Airspeed + Vario Sensor

Order Number #85418

Measurement range - speed 20 ..... 280km/hr

Resolution up to 35 km/hr < 1,0 km/hr

Resolution over 35 km/hr < 0,4 km/hr

Measurement range - altitude -450 .....+4000m

Resolution 1 m

Measurement range - vario +/- 50 m/s

Resolution 0,1 m/s

Operating voltage 3,5 ...... 9,0 Volt

Temperature range -15°C ...... +55 °C

Current drain 12 mA

Set contents Sensor, Prandtl tube, 2 x connecting tube, 2,5m

Weight, sensor [g] 10 g

Weight incl. accessories [g] 42,5 g

1.1 Special features

The True Airspeed + Vario sensor includes a series

of innovative features:

· Measurement of actual airow speed by monitoring

pitot (stagnation) pressure.

· Measurement of the current altitude by monitoring

ambient pressure.

· Measurement of rate of climb and descent by means

of the vario / altimeter also included in the unit.

· Automatic calibration of the vario sensor.

· Automatic calibration of the altimeter.

· Automatic calibration of speed measurement.

· Automatic adjustment of speed measurement relati-

ve to air density, which varies with height above sea

level. This feature ensures an accurate display of the

model’s speed regardless of its altitude.

· User-variable warning threshold for maximum speed.

· User-variable warning threshold for minimum speed

(stall warning).

· User-variable warning threshold for minimum

altitude.

· User-variable warning threshold for maximum

altitude.

· User-variable warning threshold für maximum rate

of descent.

· User-variable vario integration time.

· User-variable suppression of model’s inherent rate

of descent.

· Simple method of setting up and updating using

MULTIPLEX Launcher software.

1.2 Specication