S80 Version 4.92 November 2014
Page 28 of 61
5.5.2.7
Needle 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).
5.5.2.8
Dead Band (SC tab)
Defines the width of the audio dead band in speed to fly mode. Default value is ±1 m/s.
5.5.2.9
Auto SC
Defines the conditions when the instrument will switch automatically between vario and
speed to fly mode.
• OFF: Switching is exclusively by an external switch connected to the S80.
• 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.
• 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 based on the G measured by
the inertial system. When glider will start circling, S80 will automatically switch from
cruise to climb mode.
The external switch wired to the LXNAV S80 has absolute priority and will override
all other switching methods.
5.5.2.10
Vario Average Time
Defines the integration period for the average vario in seconds. The default is 20 seconds.
5.5.2.11
Netto Average Time
Defines the integration period for the average netto vario in seconds. The default is 10
seconds.
5.5.2.12
Temperature Offset
The LXNAV S80 is supplied with an external outside air temperature (OAT) sensor. With the
offset setting it will correct static errors of temperature measurement.
5.5.2.13
Inertial assisted vario
With the LXNAV S80, it is possible to adjust the influence of g-force on the vario. This
influence is very small and can be set to Off or between 0 and 4.
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