Multifunction Instrument MODEL EFI User’s Manual
The multifunction EFI is available in a small rectangular format and a larger round package that includes magneto test switches. Other than the magneto test switches, both formats are functionally identical. Both units simultaneously display all of the following data on a large, two-line liquid crystal display (LCD). Referring to the figures, the functions are; engine RPM, AUX, two exhaust gas temperatures (EGT), two cylinder head (CHT) or one Coolant temperature, Altitude, Climb rate and Flight Time. The unit also displays total accumulated engine time (Hobbs) at the push of a button. The LCD contrast can be adjusted from the normal seating position with the up/dn switch and provides a clearly readable display over a wide range of viewing angles. In addition, the LCD is backlighted for night viewing.
The AUX function is extremely versatile in that it can be used to display volts, fuel level, oil pressure, oil temperature, outside air temperature or any other desired parameter.
The top four functions each have a REDLINE associated with them, and the redline settings can easily be displayed and changed. REDLINE settings, Flight Time and Hobbs time are retained in permanent memory which does not need power, so no data is ever lost due to a battery failure. Exceeding a REDLINE setting causes the high intensity, red WARNING light to flash and the associated LCD value to blink. Pressing the Lmts switch stops the WARNING light, but the LCD characters still blink until the situation is corrected.
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