Installation Guide Instruction Manual
EMS Configuration     
for each function. The various supported sensors and their types are described below, starting at 
page 6-8. 
Alarm and Color Threshold Configuration 
In the various sensor setup menus, you will be configuring the alarms and color thresholds. 
Below is an introduction to the principles used. 
If you have configured EMS > GLOBAL > ENGINE TYPE to ROTAX, then the color thresholds 
for the Tachometer and Oil Temperature are automatically set in accordance with manufacturer 
specifications. 
Alarms for any given sensor can have three different modes of operation. They are: 
OFF – When the selected sensor enters the red portion of its analog gauge, no alarm will be 
sounded. Use this mode if you have not installed the selected sensor or do not wish to be alerted 
when its value is beyond the norm. 
SELF-CLEAR – When an alarm 
condition occurs for the selected 
sensor, an alarm will be displayed 
(and sounded, if the audio alert 
connection to the intercom is 
made). If the given parameter 
enters normal values (i.e., comes 
out of the red), the alarm will be 
cancelled. 
LATCHING – The alarm will 
continue to be displayed, even if 
the condition has returned to 
normal values again. 
AOA (appears only on EMS Contact 1 and EMS Contact 2) – When EMS Contact 1 or EMS 
Contact 2 is activated, the AOA alarm in the EFIS section of the instrument is triggered; the 
resulting alarm depends on how the EFIS AOA alarm is configured (EFIS TONE, EXT TONE, 
or EXT VOICE). 
All displayed analog bars have color thresholds which must be set. Navigate to each threshold to 
increment or decrement it. Each number represents the value – in the units of the displayed 
parameter. So, in the picture above, the top section of the oil pressure analog bar is set to 99 PSI; 
the threshold between the upper portion of red and the upper portion of yellow is set to 95 PSI; 
and so on. If an alarm for a given sensor is enabled (either SELF-CLEAR or LATCHING), the 
alarm will trigger at the red/yellow boundaries. 
Some sensors have color thresholds on the high and low side; others have thresholds on only one 
side or the other. This depends on the individual value being displayed and whether its being too 
high or too low is noteworthy. Whenever a value is in normal operating conditions (green on the 
analog bar), its displayed numeric value will be white. When any value enters a yellow or red 
zone on its analog bar, the respective numeric value will change colors accordingly. 
6-2    FlightDEK-D180 Installation Guide 










