Gauges - Garmin GI 275 Installation Manual

5.6.4

Gauges

If configured for twin-engine EIS, a Source button will be selectable at the top of the Gauges page. The
GI 275 that is directly interfaced to the GEA connected to Engine 1 (i.e., EIS 1) must have Engine 1
selected as the Source per this STC. The GI 275 that is directly interfaced to the GEA connected to
Engine 2 (i.e., EIS 2) must have Engine 2 selected as the Source per this STC.
5.6.4.1 Gauge Layout
Refer to Appendix F for gauge layout information.
5.6.4.2 Gauge Markings and Ranges
Obtain the AFM/POH or other approved data to set the gauge markings and gauge ranges. If the existing
aircraft gauges that are being replaced do not match the AFM/POH or other approved data, the installer
must resolve the discrepancy. Prior modifications may have altered the aircraft limitations and operating
parameters.
WARNING
Gauge markings, limitations, and units present in the AFM/POH, this manual, or other
approved data must be represented on the EIS gauge. No additional markings are permitted
on required gauges.
NOTE
The GI 275 EIS typically utilizes bar gauges instead of full radial gauges. Because of this,
colored "arcs" listed in the POH/AFM should be configured as colored "ranges" on the
GI 275 instead.
NOTE
Only red or yellow colors are capable of alerting. A red range will alert and can be used
for items such as low fuel quantity alerting. Refer to Appendix Section F.6.1.
Gauge markings are not approved for the following gauges:
• EGT
190-02246-10
Rev. 11
GI 275 Part 23 AML STC Installation Manual
Page 5-63