Vario Parameters - LXNAV LX80XX User Manual

Operating Modes
5.1.3

Vario Parameters*

This option is used to set the vario parameters.
Following parameters are set:
Vario needle filter sets a time constant of the vario needle. The value can be adjusted
between 0.1 and 5 s with step 1.0 s or 0.1 s. Default value is 1.5 s.
Vario sound filter sets a time constant of vario sound.
between 0.1 and 5 s with step 1.0 s or 0.1 s. Default value is 1.5 s.
Vario range sets full scale range of the vario (2.5 m/s, 5 m/s or 10 m/s). Default value is
5 m/s (10 kts).
SC tab defines the width of the audio dead band in speed to fly mode. Default value is
±1 m/s.
Integrator time defines the integration period for the average vario in seconds. The
default is 20 seconds.
Auto SC defines the conditions when the instrument is switched automatically between
vario and speed command.
 OFF: Switching is exclusively by an external switch connected to the vario unit.
 GPS: When the GPS detects that the glider is circling an automatic change over to vario
will happen after approximately 10 seconds. Detection of straight flight will cause a
changeover to speed command.
 G-load: When accelerometer detects increased g-load, because of circling, variometer
will change from cruise to climb mode.
 IAS: When the IAS exceeds a pre-set value. The IAS 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).
Using Smart vario filter, vertical speed can be further filtered. Smart vario filter defines
maximum speed of vario needle. Higher the value is, slower will be the needle.
Beep at max will enable a short beep few seconds before a maximum in thermal is
reached.
Beep before max defines how many seconds before a maximum in thermal a short beep
will be heard.
Auto reset integrator resets the integrator to zero when the vario unit switches from
cruise to climb mode. If this item is not checked the integrator will not be reset to zero.
Netto filter sets a time constant of the netto vertical speed filter. The value can be up to
20 times bigger than vario needle filter. Default value is same as vario needle filter.
SC filter sets a time constant of the speed to fly (SC) filter. The value can be up to 20
times bigger than vario needle filter. Default value is same as vario needle filter.
Relative filter sets a time constant of relative vertical speed filter (also known as supper
netto vertical speed). The value can be up to 20 times bigger than vario needle filter.
Default value is same as vario needle filter.
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Version 6.03, May 2017
The value can be adjusted