MVario
-1-
The MVario System measures the atmospherical pressure and calculates with the
obtained data the altitude above sea level, the rate of climb as well as the rate of descent and
records extreme values of these data. The changes of rates of climb and descent are signalled
and if preadjusted limits are exceeded, alerts are calling for attention. Informations of the
sensor are transmitted via the Duplex System to the user.
The Duplex System takes advantage of the 2,4GHz band for communication and is not
only transmitting model control data to the model, but is also receiving data from the model
back to the transmitter. The telemetric data gained during operation are shown as actual
measured values in real time on the LCD screen of the JETIBOX.
Technical Parameter
MVario
Dimensions
20x11x5
Weight with cables
6g
Measuring accuracy of absolute/realative altitude
±9m/±3m
Measurement range
300÷1100hPa
Operating temperature
-10÷85°C
Supply voltage
3,5 ÷ 8,4V
Current consumption
6mA
The sensor renders possible to adjust an acoustic signal for the climb rate/descent rate or
for exceeding of a preadjusted limit value. The acoustic signal consists of 4 different kinds
(steps) for climbing and the same amount of steps for descending. The step width can be
adjusted by the user. The climb signal consists of short interrupted tones, the descent signal
of long interrupted tones.
Design of the MVario Sensor:
The MVario is a sensitive barometric sensor. Any pressure change results in a change of
altidude above sea level, of climb rate a. s. o. The sensor should be solely influenced by static
atmospheric pressure, not by any airflow through the model. Therefore placement of the
sensor in the model should be considered carefully. Place the sensor in the model in a
horizontal position (the MVario name sticker on top) in a position where only static
atmospheric pressure can have an effect.
Connecting the MVario see fig. page 5.:
The MVario comprises an exit marked Ext. (black connector) and an input (red
connector). Via the exit (black connector) of the sensor informations are transmitted to the
receiver or to the JETIBOX, and it serves as current supply as well. Via the input (red
connector) the acoustic signalling of the MVario can be activated/deactivated and furthermore
it is used for connecting up to a free receiver channel.
1. The triple-core cable with JR plug (black connector) can be plugged in directly into the
JETIBOX (socket with the marking Impulse, + - ). For current supply you have to use the
second input of the JETIBOX with the marking (+ - ), please apply a voltage of 5-8,4V. When
taking advantage of this type of connection you must be aware that there exists no wireless
data transfer and the measured data are directly shown on the LCD screen of the JETIBOX.
This connection type allows no alert signal generation and no acoustical signals of the Vario,
because the buzzer is a component of the transmitter module which is not connected in that
case. Alert signals are shown on the LCD-screen only.
