Operation Manual

V7 Version 3.01 October 2013
Page 20 of 48
• TAS: When the TAS exceeds a pre-set value. The TAS at which switching occurs can be
selected in 5 km/h steps from 100 up to 160 km/h (or the equivalent in knots or mph).
• G-meter – for switching between cruise and climb mode will be used inertial system.
When glider will start circling, V7 will automatically switch from cruise to climb mode.
The external switch wired to the LXNAV V7 has absolute priority and will override
all other switching methods.
5.3.4.10 SC switch
The LXNAV V7 has an input for an external speed command switch. Using the external
switch it is possible to switch between SC and Vario manually. Setting the SC switch to ON
means that closing the switch will cause the instrument to enter SC mode and setting SC
switch to OFF means that closing the switch will select Vario mode. There is a third option
by setting SC INPUT to TASTER and connecting a push button to the input; each key press
will toggle between SC and Vario (mandatory setting for LX Remote).
There is another input called VARIO PRIORITY. When this input is activated by
grounding the appropriate wire the unit will change over to Vario immediately.
This input wire is set open (not grounded) as a factory default on delivery.
5.3.4.11 Vario Average Time
Defines the integration period for the average vario in seconds. The default is 20 seconds.
5.3.4.12 Netto Average Time
Defines the integration period for the average netto vario in seconds. The default is 10
seconds.
5.3.4.13 Auto reset integrator
Resets the integrator to zero when the V7 vario unit switches from SC to VARIO mode. If
this item is not checked the integrator will not be reset to zero.
5.3.4.14 TE compensation
The LXNAV V7 offers two methods of vario Electronic Total Energy Compensation:
• TE Pitot tube
• Electronic TE compensation
It is important to note that the method of TE compensation is set up when the
instrument is installed by virtue of the pneumatic connections made to the TE and
static ports. Changing the compensation type in the setup screen below WILL
NOT change the method of compensation - the pneumatic plumbing has to be
changed first.
If the TE pitot tube has been connected TE compensation should be set to 0%.
There is no further adjustment of TE compensation possible. Quality of the TE
tube is the one and only factor.