Maximum Cronus - Manual (Page 3)

INC.
30 Samuel Barnet Boulevard
New Bedford, Massachusetts 02745
(508) 995-2200 www.maximum-inc.com
OPTIONS AND OTHER SETTINGS
Cronus contains a number of settings that are changed infrequently. These settings are Year, AM/PM or
24Hour and, Automatic Daylight Saving enable. These can only be set by starting the set everything
mode. To start the set everything mode, simply press and release the switch mounted on the back of the
instrument. Cronus will start the set everything mode which consists of the following items in the order
they are presented.
1. Year setting: Cronus can be set for any year from 2001 through 2099. The setting procedure
is like the procedure used for setting time, date or, tide time as described above.
2. Date setting: see above.
3. Automatic Daylight Saving Time enable: The display shows “UdS” for Use daylight Saving,
followed by a flashing “0” or, “1”. “0” indicates that the feature is turned off, “1” indicates the
feature is turned on. Use the “Set” switch to change the setting. When finished, press “Select”
followed by “Set”, like the other setting functions, to go to the next function. Note: the daylight
saving changes follow the North American standard. Time is advanced one hour at 2:00AM
on the second Sunday of March and, set back one hour at 2:00AM on the first Sunday of
November.
4. AM/PM or 24Hour display mode: Use the “Set” switch to alternate between the two modes.
The small function lights will blink and the main display will show “24” or, “AP” to indicate
which mode is selected. To finish press “Select” and then “Set” as with the other settings.
5. Time setting: see above.
6. Tide setting: see above.
HOW A TIDE CLOCK WORKS
It has been known for centuries that up and down the east coast, tides occur approximately 50 minutes
later each day than they did the day before. The primary reason for this daily lag can be traced to the
moon. It takes the earth 24 hours to make one complete rotation in relation to the sun. This rotation is
called a “solar day”. It takes the moon 24 hours and 50 minutes to make one complete rotation around
the earth. This rotation is called a “lunar day”. It is the moon’s close proximity to us and the relatively
strong gravitational effect it has on the earth that causes the tides to follow the moon’s lunar schedule of
24 hours and 50 minutes per cycle.
While this lunar cycle is the primary force behind the workings of the tide, it is not the only force. On a
daily basis the average tidal cycle of 24 hours and 50 minutes can be affected by such cosmic variables
as the relative position of the earth to the sun and the specific elliptical pattern of the moon around the
earth. Localized variables affecting daily tides also exist. These would include strong winds, changes in
atmospheric pressure, distant storms and an infinite number of other atmospheric conditions. The total
affect of all these different factors cause tides to vary around the average point of 24 hours and 50
minutes. These variations can cause the reading of your tide clock to be either fast or slow in relation to
actual tides, by as much as one hour or more on any given day. However, the rhythmic 24 hour and 50
minute cycle will prevail over any given 28 day lunar period. Basically what all this means, is that on any
give day the clock may read fast or slow, but over a 28-day period it will average itself out to be correct.
For most purposes, high and/or low tide is not really a point in time, but a condition that exists over a
period of time. If for some reason you require exact tide information you should always refer to a current