Specifications

7-62 Information Manual
Section 7 Cirrus Design
Airplane Description SR20
Fuel Flow Indication
Serials 1268 through 1581: Fuel flow indication is integral to the
combination Fuel Flow/Manifold Pressure Gage. Refer to preceding
discussion on Fuel Flow and Manifold Pressure Gage for complete
description of fuel flow indication.
Serials 1582 and subsequent: Fuel flow is shown as text in the fuel
data block located in the lower right section of the MFD and is also
continuously displayed in The MFD and PFD receives a fuel-flow rate
signal via the DAU from a fuel-flow transducer on the right side of the
engine in the fuel line between the engine driven fuel pump and
throttle body metering valve.
In the event fuel flow exceeds 18.0 gallons per hour, the MFD will
display “Check Fuel Flow” in a red advisory box in the lower right
corner of the MFD.
28 VDC for the digital instrument operation is supplied through the 2-
amp ANNUN / ENGINE INST circuit breaker on the Essential Bus.
Fuel Caution Light
The amber FUEL caution light in the annunciator panel comes on to
indicate a low fuel condition. The light is illuminated by switches in the
fuel quantity indicator if the fuel quantity in both tanks drops below
approximately 8.5 gallons (17 gallons total with tanks balanced in level
flight). Since both tanks must be below 8.5 gallons to illuminate the
light, the light could illuminate with as little as 8.5 gallons in one tank
during level flight if the other tank is allowed to run dry. If the FUEL
caution light comes on in flight, refer to the Fuel Quantity gages to
determine fuel quantity. The light is powered by 28 VDC through the 2-
amp ANNUN / ENGINE INST circuit breaker on the Essential Bus.
March 2010