Electronics International CGR-30P - Manual (Page 30)

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Auto Adjust K-Factor – This field activates the automatic calculation of the new K-Factor to remove the
error in the Fuel Remaining and Fuel Used. The K-Factor can be adjusted manually by using the following
formula:
(Calc’d Used Since Fill up) x (current K-Factor)
New K-Factor = —————————————————————
Actual Fuel Used (Pump Reading at Fill up)
WARNING: When you change the K-Factor, the accuracy of the CGR-30P’s estimated Fuel Remaining,
Fuel Used and Fuel Flow readings will change.
6.2 Clock and Hour Meters Screen:
This screen allows you to set today’s date, Local and Zulu time and view
the current Tach Time and Engine Hours. The date and time is used to
stamp each record in the flight logs. The Tach Time is the total time the
engine has been operated over 1300 RPM. The Eng Time is the total
time the engine has been operated. Eng Time is is used for TC work or
logging flight hours.
6.3 EGT/CHT Bar Graph Setup Screen:
The Bar Graph may be setup using the following fields:
EGT Range Low & High – The Low and High EGT Range settings determine the operating range of the
bar graph display. The goal is to set the range so the bars are
low in the display during full rich low power operation and high in
the display during lean cruise operation. It will then be possible
(at a glance) to see how rich or lean your engine is running.
Set the “High EGT Range” field for 30°F above peak EGT for
the hottest cylinder.
Set the “Low EGT Range” field for 50°F below the coldest EGT
when operating full rich low power.
When an EGT reaches a High Range limit, the bar for that
cylinder will blink in white alerting the pilot of a possible over
temp condition.
Hottest to Coldest Difference (EGT and CHT) – This field allow you to set the maximum spread
between the hottest and coldest EGT and CHT. This provides a tool to help detect engine problems early.
False warnings are annoying and can create complacency towards alarms in general. EGT and CHT
spreads will vary with engine power, mixture settings and different altitudes. To protect against false alarms