Specifications

Information Manual 7-59
Cirrus Design Section 7
SR20 Airplane Description
Fuel Quantity Indicator
A dual reading 2¼” fuel quantity indicator is installed on the console
immediately forward of the fuel selector valve. The LEFT pointer
indicates left tank fuel quantity and sweeps a scale marked from 0 to
28 U.S. gallons in 2½-gallon increments. The RIGHT pointer sweeps
an identical scale for the right tank. Each scale is marked with a yellow
arc from 0 to 8.2 gallon. The indicators are calibrated to read ‘0’ when
no usable fuel remains. Each indicator also provides an output signal
to illuminate the FUEL caution light when the fuel quantity goes below
approximately 8-9 gallons in each tank. The indicator is internally
lighted. Serials 1268 through 1581: 28 VDC for fuel quantity system
operation is supplied through the 5-amp ENGINE INST circuit breaker
on Main Bus 1. Serials 1582 and subsequent: 28 VDC for fuel quantity
system operation is supplied through the 5-amp FUEL QTY / HOBBS
circuit breaker on Main Bus 1.
• Note •
When the fuel tanks are 1/4 full or less, prolonged
uncoordinated flight such as slips or skids can uncover the
fuel tank outlets. Therefore, if operating with one fuel tank dry
or if operating on LEFT or RIGHT tank when 1/4 full or less, do
not allow the airplane to remain in uncoordinated flight for
periods in excess of 30 seconds.
March 2010