Dynon Avionics FlightDEK-D180 Installation Guide - Manual (Page 68)

EMS Configuration
Exhaust Gas Temperature (EGT)
Select the alarm mode and the analog bar
thresholds as described in Alarm and Color
Threshold Configuration on page 6-2. If one or
more EGT thermocouples have been installed, set
the DISPLAY parameter to ON; if no EGT
thermocouples are installed, set it to OFF. There
is no need to set a sensor type; any K-type
thermocouple will work.
In addition to the configuration of the color
thresholds, you can configure the top and bottom of the EGT/CHT analog scales independently.
This allows you to show a narrower region of interest on the analog gauges to ensure easy
detection of minor differences between cylinders. The TOP OF SCALE parameter defines the
highest temperature displayed on the EGT analog gauge; The BOT OF SCALE parameter
defines the lowest temperature displayed on the EGT analog gauge; the SCALE SECTIONS
defines the number of sections into which the entire scale range is divided. Set the TOP OF
SCALE, BOT OF SCALE, and SCALE SECTIONS to suit your needs.
For all SPLIT cylinder displays (2 and 4 cylinders only), you can set the SCALE SECTIONS for
EGT and CHT independent of each other. For COMBD displays, EGT and CHT SCALE
SECTIONS are tied together as the two sets of measurements are displayed on the same graph.
All 1/3 EMS displays show EGTs and CHTs in the combined view. If you have set the
EGT/CHT displays to be split on 2/3 EMS pages, swapping to a 1/3 EMS will cause the EGT
SCALE SECTIONS value to take precedence over the CHT SCALE SECTIONS.
SPAN ALARMS
You may configure alarms based on the overall
temperature span between the hottest and coolest
cylinders’ EGTs. The span alarm configuration is
located on the second page; press DOWN▼ from
the bottom of page 1. First, press SEL► to toggle
the DETECT setting to ON. Like other alarms,
you can cycle ALARM through SELF-CLEAR,
LATCHING, and OFF. See Alarm and Color
Threshold Configuration on page 6-2 for
definitions of those functions. Next, configure the MAX SPAN (the maximum temperature
difference between hottest and coolest cylinders, in the units shown at the top of the menu)
during non-leaning conditions. Next, configure the maximum span while leaning in the WHEN
LEANING section. If you do not wish to have a different span alarm value while leaning, you
must still configure this value to equal that of MAX SPAN. When the difference between your
hottest and coldest cylinders’ EGTs is greater than the MAX SPAN value (or WHEN LEANING
value, when leaning), a span alarm is triggered. When this occurs, those two EGT values will
alternate between their actual value and a SPN alert. If you have configured the ALARM setting
to either SELF-CLEAR or LATCHING, the SPN alarm will be red and will be accompanied by
an alarm bar. If you have configured ALARM to be OFF, the SPN alarm will be yellow.
6-10 FlightDEK-D180 Installation Guide