Garmin GI 275 Installation Manual page 238

Additional specific sensor configurations are as follows:
RPM
• The RPM must display the originally intended RPM based on the aircraft/engine performance. The
following information can be found either on the engine TCDS or Operator's Manual. Only the
P-Lead can be used for geared engines
• Select the RPM sensor type:
P-Lead - select configuration to match the engine magneto type, two single magnetos or one
◦
dual-magneto. Select the engine reduction gear ratio (if applicable) to ensure the RPM gauge
displays the AFM/POH values
◦ Mag Vent Pickup
Shunt - Alternator Load
1. Select the model.
2. The shunt can be calibrated only if it is out of tolerance. For calibration:
a. With the aircraft alternator OFF, select the installed shunt.
b. Reselect the Shunt - Alternator Load.
3. Touch Calibrate to zero the indication.
The displayed shunt value is a static value captured upon entering the Shunt page; if the electrical load
changes, the page must be reloaded to display the new value.
Manifold Pressure
1. Select the sensor (Sensor→ Manifold PRESS).
2. For the Garmin 011-04202-00 sensor configuration, if the displayed manifold pressure value is
incorrect, perform the calibration. Refer to Figure .
a. Reselect the manifold pressure sensor model, then touch the Calibration. button.
b. Enter the local Barometric Pressure, then touch the Current BARO button.
c. Enter the local field elevation, then touch the Field Elevation button.
d. Touch the Calibrate button.
Fuel Quantity
Select the fuel quantity sensor model (refer to Section 3.4.3 and Appendix C for sensor selection details).
Refer to Section 5.7.5.1 for the calibration procedure.
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Rev. 11
GI 275 Part 23 AML STC Installation Manual
Page 5-60