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Specifying Temperature Unit; Temperature Reading Precautions - Casio 3261 Operation Manual

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Operation Guide 3261 3281
4. Use
(+) and
(–) to change the displayed calibration by 0.1°C (0.2°F) steps.
To return the currently flashing value to its initial factory default setting,
at the same time. OFF will appear in place of the flashing
temperature value for about one second, followed by the initial default value.
5. Press
to return to the Digital Compass/Thermometer Mode screen, and then
take direction and temperature readings.
Thermometer Precautions
Temperature measurements are affected by your body temperature (while you are
wearing the watch), direct sunlight, and moisture. To achieve a more accurate
temperature measurement, remove the watch from your wrist, place it in a well
ventilated location out of direct sunlight, and wipe all moisture from the case. It
takes approximately 20 to 30 minutes for the case of the watch to reach the actual
surrounding temperature.
2. Press
as many times as necessary until TEMP is displayed.
See step 3 under "To change the current time and date settings" (page E-29)
for information about how to scroll through setting screens.
3. Press
to toggle the temperature unit between °C (Celsius) and °F (Fahrenheit).
4. After the setting is the way you want, press
Using the Moon Data
In the Moon Data Mode, you can see the current date's Moon phase for your Home
City. You can specify a date and view Moon data for that date.
To enter the Moon Data Mode
to select the Moon Data as shown on page E-22.
Moon phase
Moon phase
About one second after MOON appears on the display,
the display will change to show the moon age.
Moon age is calculated to an accuracy of ±1 day.
Moon age
Moon age
Month – Day
Month – Day
Reversing the Displayed Moon Phase
The left-right (east-west) appearance of the Moon depends on whether the Moon is
north of you (northerly view) or south of you (southerly view) as you view it.
You can use the procedure below to reverse the displayed Moon phase so it matches
the actual appearance of the Moon where you are located.
To determine the viewing direction of the Moon, use a compass to take a direction
reading of the Moon at its meridian passage.
For information about the Moon phase indicator, see "Moon Phase Indicator" (page
Moon Phase Indicator
The Moon phase indicator of this watch indicates the
Module 3261
Module 3261
current phase of the Moon as shown below. It is based on
the view of the left side of the moon at meridian transit
from the northern hemisphere of the Earth. If the
appearance of the Moon phase indicator is reversed from
the actual Moon as viewed from your location, you can
use the procedure under "To reverse the displayed Moon
phase" (page E-67) to change the indicator.
Moon Phase Indicator
Moon Phase Indicator
Module 3281
Module 3281
to exit the setting screen.

Specifying Temperature Unit

Use the procedure below to specify the temperature unit to be used in the Digital
Compass/Thermometer Mode.
When TOKYO is selected as the Home City, the
temperature unit is set automatically to Celsius (°C).
These settings cannot be changed.
To specify temperature unit
1. In the Timekeeping Mode, hold down
starts to flash and the city name starts to scroll on the
This is the setting screen.

Temperature Reading Precautions

When taking temperature readings, it is best to remove the watch from your wrist in
order to eliminate the effects of body heat. Remove the watch from your wrist and
allow it to hang freely from your bag or in another location where it is not exposed to
direct sunlight.
Moon Data
The Moon phase and Moon age information that appears first when you enter the
Moon Data Mode shows the data at noon for your currently selected Home City on the
current date, according to the Timekeeping Mode. After that you can specify another
date to view data.
If the Moon data is not correct, check your Timekeeping Mode settings and correct
them if necessary.
The Moon phase is displayed in the Timekeeping Mode, and the Moon Data Mode.
If the Moon phase indicator shows a phase that is a mirror image of the actual
moon phase in your area, you can use the procedure under "Reversing the
Displayed Moon Phase" (page E-66) to change it.
Use the Moon Data Screen to specify the Moon Data date. You can use
change the displayed date in one-day increments. Pressing
of the displayed date.
To reverse the displayed Moon phase
1. In the Moon Data Mode, hold down
phase indicator starts to flash.
This is the indicator switching screen.
2. Press
to toggle the Moon phase indicator between
the southerly view (indicated by
view (indicated by
Northerly view: Moon is north of you.
Southerly view: Moon is south of you.
3. When the Moon phase indicator setting is the way you
want, press
to the Moon Data Mode screen.
(part you cannot see)
Moon Age
Moon Phase
until SET
(+) to
will display the year
until the Moon
) and northerly
to exit the switching screen and return
Moon phase (part you can see)
4.7-6.4 6.5-8.3 8.4-10.1 10.2-12.0 12.1-13.8

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