Bailey Moyes 912 Dragonfly Maintenance Manual Download

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3.1

The Basics of the Engine Information System Operation

Power to EIS when starting the engine.

It is good practice to turn on the EIS before starting the

engine, and verify a low oil pressure warning is generated. This verifies the oil pressure sensor is able
to sense zero pressure correctly. The instrument may be left on, and the engine started, at which time
the warning light should go off, indicating oil pressure is within limits. While the oil pressure sensor is
very reliable, this procedure is recommended because it requires little more than turning the instrument
on before starting your engine.

The Display button and your favorite page.

Double-clicking the “Display” key will immediately

change screens to the page you have selected as your favorite display page. This provides a quick and
simple means of returning your instrument to your favorite page, after you have been reviewing other
display pages. To make your selection of which page is to be displayed by the “Display” key, see the
“Set Pages” section.

The Display button and On-Screen Labels

. Pressing and holding the “Display” button while on a

user-configurable page (a combination page or bar-graph page) will replace the numeric data with
labels, making it easy to identify the data on the screen. Releasing the button returns the display to
numeric data.

The Alarms – The most important part!

The instrument's alarm function will alert you to out-of-

limit conditions by flashing the warning light (to get your attention), and simultaneously changing
pages to a labeled screen and flashing the reading above its label to identify it. If the problem can not
be fixed immediately, the alarm should be acknowledged by pressing the “Next/Ack” button on the
EIS. (When the alarm light is flashing, the instrument will ignore the other buttons.) Acknowledging
an alarm returns the instrument to the page it was previously on, and allows it to alert you to the next
problem. After acknowledging an alarm, the warning light will remain continuously on as long as any
out-of-limit condition exists. The warning light will go out when everything is within limits. An alarm
that goes away, and then returns, is treated as a new warning, and will again generate the response
described here. Multiple alarms are presented according to priority, one at a time.

Determining Alarm Status –

After acknowledging one or more alarms, the warning light will stay

continuously on indicating as long as one or more functions are out-of-limits. To make the instrument
to show you the current out-of-limit conditions, select the “Set Pages”, then simply hold the right
button depressed until the instrument returns to the normal display pages. Upon leaving the set pages,
the instrument will clear the acknowledgement of all alarms, causing it to re-annunciate all current
alarm conditions as if they were new alarms. Turning the power of and back on will also accomplish
this action, but will reset the flight timer.

Set Unused Limits to Zero.

By setting a limit to zero, the alarm function for that limit will be turned

off. It is a good idea to set limits for all unused functions to zero so that the instrument does not
inadvertently generate nuisance warnings for signals you are not using.

3.2

Before Each Flight

1) If the instrument includes the altimeter option, set it before each flight.
2) If the instrument includes the fuel flow option, review or update the fuel quantity setting as
necessary. (Pressing the outer two buttons of the EIS will bring up the fuel quantity set page. While on
this page, pressing the "UP" and "DOWN" (left and center buttons) will set the fuel quantity to
whatever you have entered on the "MAX Fuel" setting on the configuration set pages.)