UBG-16 Operating Modes
Overview of Modes
The UBG-16 has three distinctive Operating Modes, each with unique features and benefits. There is
also one "Mode within a Mode," the "Profile Mode," which provides information
on the engine's fuel-to-air mixture profiling.
The Normal Mode is where the UBG-16 displays digital and graphical information about EGT's, as well
as digital information about other monitored functions. The Normal Mode is where all
pilot-programming is performed, and where the somewhat hidden "Profile Mode" can be
The whole point of owning a Bar Graph instrument is, arguably, the bar graph feature. The bar graph
provides a quick reference to pilots regarding the temperature status of each, individual
In addition to the quick reference offered by the bar graph, the UBG-16 displays a precision
digital reading for each monitored function. This way, pilots can keep a close eye on exactly what
their engine is up to.
Each Cylinder's EGT's and CHT's are displayed in the Normal Mode, in both graphical format and in
Electronics International's stable, one degree (Fahrenheit) resolution. Other functions are
available, including many pressures, temperatures and other functions. See the "Accessories
" page of the UBG-16 for a complete list of available functions.
All pilot programming will occur in the Normal Mode, from the face of the instrument. Do not be
intimidated by the powerful features found in the UBG-16; the programming could not be simpler.
Electronics International's engineers have taken great care to ensure the UBG-16 has the same
straightforward, common sense approach to programming that all of our products are famous for.
The Profile Mode is a feature unique to the UBG-16. After leaning your engine, check out the
Profile Mode (within the Normal Mode, go to "Peak" and click the Mode switch one time to
the left) to view your engine's fuel to air mixture profile. This is an excellent tool for people
with Gamijectors installed, or for those wanting to balance their engines. The closer the bars are
in the Profile Mode, the closer the fuel to air mixture between the cylinders.
The Normalized Mode gives pilots a visual indication of trends occuring within their engine. When
the bar graph is "Normalized," all of the EGT bar graph columns are equalized in height.
If, after normalizing the bars, any column is substantially different in height from any other
column, then a change has occured within the engine, which may be an indicator of an engine
Long Term Memory
Though some other manufacturers may claim to have long-term memory, the UBG-16 truly does. It does
not simply remember the normalized status for one flight, only to reset again when you re-cylce the
power or re-enter the Normalized Mode. Instead, the UBG-16 stores the Normalized information
until you reset it. This allows you to monitor engine changes over the course of several flights,
instead of just during one flight. You can choose to reset the information as many times and as
often as you like, but it will not reset until you ask it to.
The UBG-16's Lean Mode gives hands-free assistance to pilots during the leaning process. The
instrument provides critical leaning information for both Lean of Peak (LOP) and Rich of Peak (ROP)
For those pilots wishing to operate their engines on the Lean side of peak, the UBG-16 is the
perfect instrument. For every cylinder, the UBG-16 alerts pilots as each cylinder peaks, and
displays the peak temperature for every cylinder. In addition, the UBG-16 displays how far from
peak each cylinder is operating once they've peaked, so you don't have to do the math in your head.
This kind of thorough, precise information allows pilots to pinpoint exactly where their cylinders
are in relation to peak during the leaning process.
For pilots wishing to operate their engines on the Rich side of peak, the UBG-16 is the perfrect
instrument. The UBG-16 alerts pilots when the first cylinder peaks, as well as its peak
temperature. The instrument then displays precisely how far from peak the leanest cylinder is, so
the pilot can dial in the exact distance from peak desired.