Navitron NT888G MK2, Руководство по эксплуатации, Страница: 12 / 77

NT888G MK2 AUTOPILOT OPERATING MANUAL
1.13 Cancelling an Audible Alarm (Section 2.8).
In Autopilot ‘ON’ mode a new (unacknowledged) alarm message will be shown
flashing accompanied by an audible alarm. Audible alarms can be acknowledged by
operation of the “
TEST ” key. Alarm conditions that persist will continue to be shown in
the alarm list.
Audible alarms may be permanently muted by 5 second continuous operation of the
“
TEST ” key confirmed by the alarm off icon in the bottom left display corner. Audible
alarms are re-enabled by further 5 second continuous operation of the “TEST” key.
NB . Audible alarms may be permanently muted but this function should be used with
extreme caution since a permanently muted alarm may result in a missed alarm
condition with dire consequences.
To cancel an audible alarm:-
(i)
Use the “
TEST ” key.
X 1
1.14 Testing Alarms (Section 2.8).
The alarms may be tested by double press of the
“
TEST/OFF ” keypad, if the alarm function is muted
audible alarms will be automatically re-enabled
X 2
To test Alarms:-
(i) Double press the “ TEST/OFF ” key.
(Each Control Unit keypad corner LED will now be illuminated in turn
accompanied at each step by audible alarm bleep).
1.15 Keypad Turns (Sections 2.11 & 2.36).
Two types of turn can be selected using the “
U TURN ” or “ NEXT COURSE ” keys as
required confirmed in either case by illumination of the corner LED as appropriate.
(i) “U TURN ” (Section 2.11 & 2.36):-
Operation of this keypad makes the Autopilot ready to produce a 180° turn from
current heading (to reciprocal heading) which is executed when turn direction is first
specified by “CANCEL” (PORT) or “CONFIRM” (STBD) key operation followed by
second “CANCEL” (abort) or “CONFIRM” (execute U TURN) key use.
To use the “U TURN” function:-
Press the “
U TURN ” key confirmed by flashing
corner LED illumination.
(i)
NB. “U TURN” request cancelled - if required - by
second press of “U TURN” key.