Tandem Display Engine Monitors -
Starting with version 128 the
G9 can be configured to operate in one of the following
three modes; normal, master, or slave.
The G9, by default, is setup
to run in normal mode.
If you have just one G9 you do not
have to do anything.
If you have two G9s then the one that
is wired to all the probes and sensors must be configured as
master and the other one must be configured as slave.
When configured as master, in
addition to its usual functionality, the G9 also transmits
the following engine measurements:
Exhaust Gas Temperature (EGT) for all cylinders
Cylinder Head Temperature (CHT) for all cylinders
Engine RPM (Tachometer)
flow (gallons per hour)
Outside Air Temperature (OAT)
Manifold (Absolute) Pressure (MAP) (inches of Mercury)
Optional Carburetor Temperature, optional Turbine Inlet
When configured as slave the
G9 receives the above measurements and
The slave display is
essentially a clone of the main screen of the master.
The G9 slave displays only
this main screen.
Turning the page knob of
either the master or the slave has no effect on the display
of the G9 slave.
Depending on the way the
master is configured the slave may also display carburetor
temperature and/or Turbine Inlet Temperature (TIT).
When the user/pilot/mechanic
changes the configuration of the master the slave
automatically reconfigures itself to match the master.
For example, if the master is
configured as a 9-cylinder radial engine then the slave will
display the information for exactly 9 cylinders etc.
The master can be configured
to display temperatures (EGT, CHT, OAT, and OIL temperature)
in either Fahrenheit or Celsius.
The slave will automatically
display them using the same temperature scale.
In slave mode the G9 does not
display lean boxes. It also does not log any data.