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3-6
Rev 1
You will be able to change the time zone any time you
desire on several other pages, so don’t worry if you’re not
sure which time zone to choose. UTC - Coordinated
Universal Time (also called “Zulu”) is always a safe
choice.
Once you have selected the desired time zone, turn the
right outer knob one step counterclockwise to position the
cursor over the entire time field (figure 3-14). Use the right
inner knob to select the correct hour (figure 3-15). Since
24 hour time is used, be sure to add 12 if the time is after
1:00 P.M.(2:30 P.M. becomes 14:30). Now turn the right
outer knob one step clockwise to position the flashing part
of the cursor over the first minute’s position (figure 3-16).
Turn the right inner knob to select the desired value.
Turning the right outer knob one more step clockwise posi-
tions the flashing part of the cursor over the second
minute’s position, and the right inner knob is now used to
finalize the time selection (figure 3-17). When the correct
time has been entered, press E to start the clock run-
ning. Don’t worry that you can’t update the seconds. The
KLN 90B system time will automatically be corrected very
precisely once a satellite is received.
8. Turn the right outer knob clockwise to position the
cursor over the first two digits of the altimeter baro set
field if the cursor is not there already (figure 3-18).
The last KLN 90B baro setting entered is displayed.
If the correct altimeter setting is displayed skip to step
10 after reading the following notes.
NOTE: The KLN 90B will use an altitude input from an
altitude encoder or air data computer. Since the altitude
from these devices is usually pressure altitude, an altime-
ter baro correction is required to ensure maximum accu-
racy. This altitude input is used for altitude related fea-
tures of the KLN 90B. Therefore, it is important to keep
the altimeter baro setting updated on the Self Test page
when power is first applied to the KLN 90B and on the
Altitude page each time a new baro correction is made to
the aircraft’s altimeter.
NOTE: The units of the altimeter baro setting may be
changed at a later time from inches to millibars on the
SET 7 page.
NOTE: The altimeter baro set field will not be a cursor
field if the KLN 90B is interfaced to certain air data/altime-
ter systems which update the baro set field when the air-
craft’s altimeter baro setting is updated.
|DATE/TIME
| 03 AUG 94
|14:10:59UTC
|ALT 1100ft
|BARO:29.92"
| APPROVE?
CRSR
|DATE/TIME
| 03 AUG 94
|16:!!:08UTC
|ALT 1100ft
|BARO:29.92"
| APPROVE?
CRSR
|DATE/TIME
| 03 AUG 94
|16:27:42UTC
|ALT 1100ft
|BARO:29.92"
| APPROVE?
CRSR
|DATE/TIME
| 03 AUG 94
|16:27:08UTC
|ALT 1100ft
|BARO:29.92"
| APPROVE?
CRSR
|DATE/TIME
| 03 AUG 94
|16:!!:08UTC
|ALT 1100ft
|BARO:29.92"
| APPROVE?
CRSR
Figure 3-14
Figure 3-15
Figure 3-16
Figure 3-17
Figure 3-18