2-3-14 Section 2: Using Digital Instruments
ST290 Instrument System Owner’s Handbook
• So it shows a level value, and an A indicator. With this setting, an
activated alarm will sound both at the ST290 system and at an
Auxiliary Alarm, when connected to the DPU.
Setting alarm levels
To set an alarm level:
1. In the Alarms chapter, select the required alarm page.
2. Hold down the button for 1 second, to enter Edit mode. The cur-
rent level for this alarm flashes.
3. Use the or button, to set the alarm level as required.
4. Hold down the button for 1 second, to leave the edit mode.
Environment chapter
The on-screen chapter title is ENVIRONMENT. The pages are summarized
in Table 3-10 .
There are no adjustable values in the Environment chapter.
Sunrise, sunset & twilight at extreme latitudes
The displayed sunrise, sunset and twilight times are valid in most cases.
However, at extreme latitudes during periods of extended day or night,
these times may not be accurate.
Table 3-10: ENVIRONMENT chapter pages
Page content Description
SEA TEMP
Sea temperature, in ° C or ° F
TIDE SET
Tide set (calculated), in degrees
TIDE RATE Tide rate (calculated), in KTS, K/H or MPH
SUNRISE
Sunrise time
SUNSET
Sunset time
TWILIGHT AM
Morning twilight time
TWILIGHT PM
Evening twilight time
81183_2 S2.book Page 14 Tuesday, May 6, 2003 8:39 AM
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