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SECTION 2: OPERATION
EPI800 Manual.doc
EPI 800 MANUAL
2001 Vision Microsystems Inc.
2.12 AIR TEMPERATURE SYSTEM OPERATION
Both Outside Air Temp and Carburetor Air Temp are displayed, at the
same time, in one compact indicator for complete air temperature
information at a glance.
OUTSIDE AIR TEMPERATURE 'OAT' is displayed on the left hand side
of the indicator both graphically and digitally in degrees C. Most true
airspeed indicators have the temperature correction scale calibrated in
Degrees C, making it easy to enter the temperature directly from the
OAT display.
CARBURETOR AIR TEMP 'CAT' (or 'cabin air temp' for injected
aircraft) is displayed on the right hand side of the indicator both
graphically and digitally in degrees C.
As temperatures increase, the graph sizes increase proportionately. The
full color range marks let you see at a glance if you are in a temperature
area conducive to icing.
The digital displays read out in 1 degree C increments to a maximum of
99 C and a minimum of -50 C. This is very useful for monitoring small
changes in temperatures and for calculating temperature related
parameters. For new engine installations, you can take advantage of
the high accuracy and repeatability for analyzing carburetor heat
effectiveness.