190-01115-01 G3X™/G3X Touch™ Avionics Installation Manual
Rev. AV Page 30-201
30.4.32.15 Electrical Current
The GEA 24 and GSU 73 have provisions to monitor bus current from two different sources. Current can
be measured either using a shunt resistor such as the UMA 1C4 (50mV/100A type) or a Hall effect sensor
such as the Amploc KEY100 series. Several additional Hall effect sensors can be connected to spare GP
inputs using the "Custom Analog (Hall Effect Amps)" setting, if more than 2 current readings are desired.
Shunt Sensors
: Shunt sensors are connected to the SHUNT 1 and SHUNT 2 inputs on the GEA 24 and
GSU 73 (see Figure 26-2.2
and Figure 26-3.1). The SHUNT 1 input can be configured to display either
"Bus 1 Amps" or "Main Bus Amps" or set to “Custom Amps 1”, which allows the installer to define the
displayed gauge name. The SHUNT 2 input can be configured to display either "Bus 2 Amps" or
"Essential Bus Amps", or set to “Custom Amps 2”, which allows the installer to define the displayed gauge
name..
Hall Effect Sensors
: Hall effect current sensors are connected to the GEA 24 or GSU 73 general purpose
(GP) inputs (see Figure 26-2.2
and Figure 26-3.1). Hall effect sensors can optionally be calibrated to adjust
for installation differences (see
Section 30.4.32.15.1). The supported configurations for Hall effect
current sensors on GP inputs are similar to those supported for shunt current sensors:
• Bus 1 Amps (Hall)
• Bus 2 Amps (Hall)
• Main Bus Amps (Hall)
• Essential Bus Amps (Hall)
• Custom Analog (Hall) - This setting allows the installer to define the displayed gauge name.
Vertical Power
: Vertical Power current inputs are configured from the Vertical Power Tab within the
Engine & Airframe configuration menu. See Section 30.4.32.36
Vertical Power VP-X for more
information.
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