LX Navigation Era 57, User Manual, Page: 53 / 98

LX Era
Device setup
Document name:
LX EUM
Document revision:
R1
5.1.2 Vario/SC
The Vario/SC setup sub-menu is used for setting all vario-related parameters and holds the
following settings:
•
Altitude Sensor -
lets you choose which sensor will be used for determining your current
altitude. The Era has two static pressure sensor, an internal - the IGC pressure sensor, and
an ’external’ - the one connected to the TE/ST pressure port on the back of the device.
•
Zero frequency -
the frequency of the tone generated by the Era, when the vario is showing
0 m/s.
•
Positive frequency -
the frequency of the tone generated by the Era, when the vario is
showing 5.0 m/s.
•
Negative frequency -
the frequency of the tone generated by the Era, when the vario is
showing -5.0 m/s.
•
Audio test -
this option will run the tone output from positive to negative frequency, which
will allow you to hear your current frequency range and adjust if necessary.
•
Range -
lets you choose between 2.5, 5.0 and 10.0 m/s range on the vario scale (and
appropriate value when other units are in use).
•
Filter -
sets the response of the variometer to changes in pressure. The smaller the value,
the more responsive the vario is, but at a cost of showing all of the small vertical move-
ment, whereas the higher levels are more slow to react, but level off minute vertical move-
ments.
•
TE Level -
electronic TE (Total Energy) compensation. The Era is capable of electronic
compensation of total energy, meaning the TE probe is not required for the instrument to
be compensated. For additional info, check
When connected to the Zeus
.
•
Integration time
- used when calculating the average thermal strength for the past set
amount of seconds.
•
Vario silence -
the value below which the vario will not produce any sound. Usually used
for small negative or positive values, if not wanting to be distracted by small differences
from the zero.
•
Max circling speed -
a set speed above which the variometer will be silent, if in SC mode.
•
SC mode -
sets how the device switches between Vario and SC modes:
– Manual -
the pilot switches between the two modes manually, by pressing the SC
button on the stick.
– Circling -
the device switches automatically, when it detects circling, as depicted in
the
Flight mode
sub-section.
– Speed -
the device switches automatically, when a set speed is surpassed.
•
SC silence -
is an interval between 0 and a set value, inside of which the Vario will not
produce any vario sounds, if in SC mode.
NOTE
For the device to detect circling, you must have a constant change of 5° per
second in your heading for at least 8 straight seconds. Turns usually last about 30
seconds, meaning your turn rate is around 12° per second, this means that circling
will be detected after approx. a third of a circle has been made.
Device manual Public 53