Garmin G900X Installation And Maintenance Manual page 107

Figure 5-15. Ammeter Shunt Installed Next to Airframe Ground
5.6.2.6.2 Alternator Ammeter Sensor
Sensor Description:
1C4: 100 Amp / 50 mv shunt
General Installation Guidance:
Given most alternators are case grounded, the primary alternator ammeter shunt should be installed inline
in the alternator output ("B" terminal). Depending on the location of the alternator relative to its
supported electrical bus, it is typically desirable to install the shunt on the firewall near where the
alternator output would normally penetrate the firewall.
5.6.2.6.3 Auxiliary Ammeter Sensor
Sensor Description:
1C1: 30 Amp / 50 mv shunt
General Installation Guidance:
Standby Battery: The standby battery ammeter shunt should be installed inline between the negative
battery terminal and the airframe ground.
Standby Alternator: The standby alternator ammeter shunt should be installed inline in the alternator
output ("B" terminal).
5.6.2.7 Position Sensor
Sensor Description:
Integrated trim servo with position sensor or standalone slide potentiometer (0 – 5 KOhm variable
resistor)
General Installation Guidance:
Each position sensor installation will vary widely according to the aircraft, motion being sensed, and
mechanical installation. For trim servos with integrated position sensing, no external position sensor is
required. If mechanical trim is used or no trim servo is present on a particular system (i.e. flaps), then a
standalone position sensor can be used. A standalone position sensor should ideally be mounted such that
the full travel of the sensor corresponds with the full travel of the control surface.
G900X/G950 Installation and Maintenance Manual – GEA 71 Page 5-19
190-00719-00 Revision D