G3X Shunt, 100 amps

Description Additional information Description Ammeter Shunt /-50 mV, /-100 amps Electrical current (battery and/or alternator) can be sensed by the G3X system either by Hall Effect current sensors or via the use of a traditional ammeter shunt. The UMA 1C4 ammeter shunt included in Garmin sensor kits (Garmin P/N 909-D0000-00) is a 100 Amp/50 mv shunt. > If measuring battery current, place the shunt between the battery positive terminal and the battery contactor. > If measuring alternator current, place the shunt between the alternator b lead and the power distribution bus. The current-carrying wires are attached to the large 1/4” lugs, while the current sense wires are attached via the use of #8 ring terminals. The ammeter shunt has two holes in the insulated base for mounting with #10 screws. Note: It is important that no metal portion of the shunt touch any other portion of the aircraft or exposed wiring. Large voltages and current are present in the shunt, and an electrical short or fire could result from inadvertent contact. The shunt should be installed in-line with the current being sensed. As noted below, the appropriate wire should be cut and attached to each of the large ¼” lugs. A 1A fuse or other form of circuit protection must be installed between the shunt and the applicable GEA 24/GSU 73 inputs to prevent inadvertent damage to the GEA 24/GSU 73. Connect the two sense wires (attached to the #8 terminals) to the appropriate inputs on the GEA 24/GSU 73 as referenced in the G3X interconnects in Section 26 through Section 29. If the ammeter readings are shown with the opposite polarity, check to see if the sense wire connections are reversed. An alternator ammeter shunt should be installed inline in the alternator output (“B” terminal). A battery ammeter shunt should be installed between the battery positive terminal and the battery contactor. Depending on the location of the alternator or battery relative to its supported electrical bus, it is typically desirable to install the shunt on the firewall near where the alternator or battery output would normally penetrate the firewall. See UMA SHUNT 100amp 1CX STD Drawing for details. GARMIN Pn.909-D0000-00 / UMA Pn.1CU4 Additional information Weight .24 lbs Dimensions 3.18 × 2 × 1.375 in Manufacturer Garmin Complementary Products Garmin Engine Indication System (EIS) Read more RED insulated 22-18awg crimp Ring Terminal for #8 screws & studs $0.67 Add to cart BLUE insulated 16-14awg crimp Ring Terminal for #8 screws & studs $0.40 Add to cart Uninsulated 4awg crimp Ring terminal for 1/4″ screws & studs $1.75 Add to cart Uninsulated 6awg crimp Ring terminal for 1/4″ screws & studs $0.75 Add to cart Uninsulated 2awg crimp Ring terminal for 1/4″ screws & studs $1.40 Add to cart