Garmin G3X Installation Manual page 270

21.3.8 TIT (Turbine Inlet Temperature) Sensor
Sensor Description – Type K grounded thermocouple probe with screw-in type adapter. This type of
sensor is applicable to all turbocharged engines.
General Installation Guidance – To maintain G3X Engine Indicating System (EIS) measurement
accuracy, thermocouple (TC) wire must be connected directly to the inputs of the GEA 24/GSU 73. If the
supplied sensor wires are not long enough to connect directly to the GEA 24/GSU 73, then Type K TC
extension wire must be used. To minimize risk of breakage, it is recommended that a high-quality stranded
(as opposed to solid) thermocouple wire be used. One such example of appropriate wire is TT-K-22S
Type K thermocouple wire from Omega Engineering.
21.3.9 Bus Voltage Monitor
Bus voltage is normally sensed from an external voltage signal connected to a GEA 24/GSU 73 analog
input (refer to Section 27
measure bus voltage without requiring an external connection, by sensing the voltage of its power supply
inputs. See Voltage Inputs
and Volts 2 Inputs) for configuration guidance.
190-01115-01
Rev. AA
for interface drawings). Optionally, the GEA 24/GSU 73 can be configured to
for GDU 37X systems and
G3X/G3X Touch Installation Manual - Engine/Airframe Sensor Installation
Voltage Inputs for GDU 45X/46X systems (Volts 1
Page 21-26