Page 2 Vision Microsystems Incorporated
Display
The display is the primary interface between engine instrumentation and
the pilot. See the figure at the end of the table of contents for a depiction
of the display. Optional measurements that are not installed will not be
on the display; they will be blank.
Dimming control
No external connection is needed for dimming. The display is auto-
dimmed by a photocell. However you can adjust the low light level
setting for your conditions. To adjust, initially hold
and until the
display blinks once. Then use and to adjust the brightness. After
setting the new brightness level, do not press any buttons within 5
seconds and your new setting automatically is saved.
Tachometer Operation
The tachometer system provides both a full sweep graphic analog
display and four place digital display. When you start the engine you
will see the analog graph rise in proportion to the engine speed. Full
color range marks and graphics provide you with a quick reference to
monitor normal, caution and red line engine RPM.
RPM
The digital readout provides you with
exact RPM information. The resolution (or
incremental steps) of the digital display is
5 RPM. The high accuracy of the
tachometer will allow you to follow long-
term performance trends of your engine
and prop, such as static maximum rpm,
carburetor heat effectiveness, and typical mag drops. These can be
important indicators of engine and accessory condition. Page 43
Engine Operating Hours
Another feature is the engine hours counter. When the engine is off,
the RPM digital display shows the total accumulated engine hours to
a maximum of 9999.9. Engine hours are accumulated any time RPM
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