Cirrus SR20 - Engine Instrument Markings & Annunciations; Powerplant

2-8 P/N 21399-004
Section 2 Cirrus Design
Limitations SR20
Engine Instrument Markings & Annunciations
The following describes the engine instrument markings. Associated
Warning and Caution Annunciations are shown in capitalized text.
PowerPlant
*Engine Speed Warning when RPM between 2710 and 2730 for more than 10
seconds OR when RPM greater than 2730 for more than 5 seconds.
**Oil Pressure Caution when oil pressure is between 10 and 29 psi and RPM is
greater than 1000. Oil Pressure Warning when oil pressure is below 10 psi, OR oil
pressure is above 100 psi.
Instrument
(Range & Units)
Red
Arc/Bar
Yellow
Arc/Bar
Green Arc/
Bar
Yellow Arc/
Bar
Red
Arc/Bar
Lower
Warning
Range
Minimum
Caution
Range
Normal
Range
Maximum
Caution
Range
Upper
Warning
Range
Cylinder Head
Temperature
(100°F – 500°F)
–– –– 240 – 420 420 – 460
CHT
> 460
CHT
Engine Speed
(0 – 3000 RPM)
–– –– 500 – 2700 –– > 2700*
RPM
Exhaust Gas
Temperature
(500°F – 1750°F)
–– –– 1000–1600 –– ––
Manifold Pressure
(10 – 35 Inch Hg)
–– –– 15 – 29.5 –– ––
Oil Pressure
(0 – 100 PSI)
0 – 10**
OIL
PRESS
10 – 30**
OIL
PRESS
30 – 60 60 – 100 > 100**
OIL
PRESS
Oil Temperature
(75°F – 250°F)
–– –– 100 – 240 > 240
OIL
TEMP
Percent Power
(0 – 100%)
–– –– 0 – 100 –– ––
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