J.P. Instruments EDM 740 Pilots Guide - Manual (Page 15)

For Your Safe Flight Page 15
TIT: Turbine Inlet Temperature
Light Blue segments represent temperature magnitude (at the same scale
as EGT) and are located to the right of the last cylinder bar graph set. A
‘
T’ just below the dotted line identifies this as TIT. When a white square
surrounds the ‘
T’, this signifies that the scanner digital values relate to
TIT. The digital value is always present above the dotted line and is
Light Blue. TIT redline is depicted by a red horizontal line above the
majority of the TIT bar graph area.
There are two views: Normalize view levels the EGT columns and
increases the sensitivity of the Scanner® bar graph columns. To enter
the Normalize view, hold the LeanFind button for three seconds. The
NRM icon will be displayed above the Scanner® section and the bars
will be blue. Hold the LeanFind button for three seconds to return to the
Standard view. See page 9 for a more detailed description.
Operating Modes
There are three standard operating modes of the EDM: Automatic,
Manual, and LeanFind. These modes will be described in more detail
beginning on page 20. When you first turn on the power the EDM starts
in the Manual mode, but will enter the Automatic mode after two
minutes (most of the time you will operate the EDM in the Automatic
mode). The three modes primarily affect the Scanner® Information
Area.
Automatic Mode
Just tap the LF button, then tap the STEP button. No user
intervention is required to use this mode. Each cylinder and each
parameter value is automatically sequenced and shown in the digital
display for a few seconds.
Manual Mode
Just tap the STEP button. This stops Automatic Mode. Each indexed
parameter is frozen in the digital display until you manually index to the
next parameter by tapping the STEP button.
LeanFind Mode
Simply pre-lean, tap the LF button and begin leaning. The EDM will
assist you in finding the correct cylinder to peak to set your mixture to.