SV-EMS-220 Engine Monitoring System Installation and Configuration
10-26 SkyView HDX System Installation Manual - Revision E
10.7.3.1 EMS Sensor Alarms
EMS alerts (audio, EMS indicator light) are triggered when a sensor goes into a RED
range, and set to SELF-CLEAR or LATCHING below. There are three (3) alarm options
for EMS sensors:
• OFF – no alarm for the sensor.
• SELF-CLEAR – When an alert is triggered, it is annunciated both on the engine
page and in the messaging system. When the alert condition ceases, all of
these annunciations cease, even if the precise alert message was not
acknowledged by pressing the rightmost button on the display to bring up the
message window.
• LATCHING – When an alert is triggered, it is annunciated both on the engine
page and in the messaging system. However, when the alert condition ceases,
the message notification area above the rightmost button will continue to show
the unacknowledged alert state until the alert message is viewed in the
message window, even though the offending parameter has returned to within
limits. This behavior ensures that the pilot is aware that an alert was triggered,
even though the condition no longer exists.
Reference the SkyView Pilot’s User Guide for information regarding how sensor alarms
show up onscreen during operation.
10.7.3.2 EMS Sensor Graphical Display Limits
These settings define the minimum and maximum values that will be shown graphically
on the sensor’s gauge. Effectively, this is the start and stop point of the gauge. If the
indicator you choose for this value shows digital numbers for the value, they will not be
limited by this setting. The system will not allow you to set these numbers higher or lower
than the sensor can support.
To increase the width of the red line indications, set the graphical display limit slightly
lower or higher than the limits defined in the airplane manufacturer's documentation.
10.7.3.3 SHOW SENSOR UNITS (YES | NO)
Some custom developed sensors may warrant a graphical widget that is not expressed
in any of the units that SkyView’s EMS supports. In such cases, you can suppress the
display of the widget’s actual unit of measurement (volts, degrees, etc.) by setting SHOW
SENSOR UNITS to NO.
10.7.3.4 EMS Sensor Ranges
According to AC 20-88A Guidelines on the Marking of Powerplant Instruments the
following colors have very specific meanings, and therefore shall only be used as
stipulated by the airplane manufacturer's documentation:
• The color red indicates an operating condition beyond authorized limits and requires
a specific action on the part of the flightcrew. The specific action to be taken should
be described in the airplane manufacturer's documentation.
To Next Page
Loading...
