Electronics International UBG-16 User Manual

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3. Displaying Other Temperatures and/or Functions Digitally:

There are a total of 16 input channels on the UBG. The columns
of bars can display EGT, CHT, TIT or Oil. Other functions will be
indicated only in the digital display. While viewing the digital
readout for the last column of bars, push the Step Switch to the
right to display the next temperature or function connected to the
UBG’s input channels.

Note:

Note: While viewing OAT, the digital display may be toggled
between degrees F and degrees C by pushing the Mode Switch to
the left.

4. Displaying the Shock Cooling Rate:

While the last monitored temperature or function is being dis-
played, push the step switch once to the right to see the Shock
Cooling Rate in the digital display. This is the rate (in degrees F
per minute) at which the indicated cylinder head temperature is
cooling. Normally, cooling will occur only during descent. The
Cylinder Number inside the lit box at the top of the columns is the
programmed shock cooling cylinder being displayed.

Note: An aircraft engine can not be shock cooled when cylinder
head temperatures are below 300'F. For this reason, the UBG-16
will display "-00" when the CHT drops below 300'F.

A Shock Cooling Limit and the cylinder to be monitored for shock cooling are programmable (see
“Programming the Shock Cooling Limit and Cylinder”).

5. Displaying the Peak EGT and Cylinder:

While the Shock Cooling Rate is being displayed, push the Step Switch once to the right to display the
Peak EGT achieved during the last leaning session. The cylinder
number inside the lit box at the top of the columns is the cylinder
which first reached peak EGT. If you have not leaned the aircraft
during this flight, the Peak EGT from the last time you leaned your
engine will be retrieved from long-term memory and will be
displayed.

Note:

Note: When viewing Peak EGT, the display may be toggled
between Profile and Peak EGT by pushing the Mode Switch to the
left. While showing Profile, each cylinder’s fuel/air mixture
distribution is displayed in the Bar Graph Display. This is an
advanced feature of the UBG and is described in detail at the back
of this manual.