Casio 2271 User Manual

2271-1
Module No. 2271
GETTING ACQUAINTED
Congratulations upon your selection of this CASIO watch. To get the most out
of your purchase, be sure to carefully read this manual and keep it on hand
for later reference when necessary.
Applications
The built-in sensors of this watch measure direction, altitude, barometric
pressure, and temperature. Measured values are then shown on the display.
Such features make this watch useful when hiking, mountain climbing, or
when engaging in other such outdoor activities.
Warning!
• The measurement functions built into this watch are not intended for
taking measurements that require professional or industrial precision.
Values produced by this watch should be considered as reasonable
representations only.
• When engaging in mountain climbing or other activities in which losing
your way can create a dangerous or life-threatening situation, always
be sure to use a second compass to confirm direction readings.
• CASIO COMPUTER CO., LTD. assumes no responsibility for any loss,
or any claims by third parties that may arise through the use of this
watch.
(Light)
About This Manual
• Button operations are indicated using the
letters shown in the illustration.
• Each section of this manual provides you
with the information you need to perform
operations in each mode. Further details
and technical information can be found in
the “REFERENCE” section.
GENERAL GUIDE
• If the digital display of your watch is continuously changing, see
“Auto Display Function” for information on how to stop it.
• The illustration below shows which buttons you need to press to navigate
between modes.
• In any mode, hold down D for about one second to return to the
Timekeeping Mode.
• You can use buttons B, C, and E to directly enter a sensor mode from
the Timekeeping Mode or from another sensor mode. To get to a sensor
mode from the Recall, Alarm, or Stopwatch Mode, you must go to the
Timekeeping Mode first.
Press D.
Recall Mode
Stopwatch Mode
Alarm Mode
Sensor Modes
Altimeter Mode
Digital Compass Mode
Barometer/
Thermometer Mode
Timekeeping Mode
▲
▲
D
D
▲
▲
▲
▲
▲
▲
▲
▲
Press B.
D
C
D
E
DD
TIMEKEEPING
Use the Timekeeping Mode to set and view
the current time and date.
To reset the seconds count to zero
1. In the Timekeeping Mode, hold down A
until the second digits start to flash, which
indicates the setting screen.
2. Press E to reset the seconds count to
00.
• Pressing E while the seconds count is
in the range of 30 to 59 resets the
seconds to
00 and adds 1 to the
minutes. In the range of 00 to 29, the
minutes count is unchanged.
3. Press A to exit the setting screen.
Hour : Minutes
PM indicator
Seconds
Month – Day
Day of week
Year
To set the time and date
1. In the Timekeeping Mode, hold down A
until the second digits start to flash, which
indicates the setting screen.
2. Press D to move the flashing in the
sequence shown below to select other
settings.
Seconds
Hour
Minutes
Day
Month Year
12/24-Hour
Format
3. While a setting is flashing, use E (+) and B (–) to change it.
• When the 12/24-hour setting is selected, press E or B to toggle
between 12-hour (
12H) and 24-hour (24H) timekeeping.
4. Press A to exit the setting screen.

Casio 2271 Specifications

General

Movement	Quartz
Model Number	2271
Brand	Casio
Alarm	Yes
Stopwatch	Yes
Backlight	Yes
Calendar	Yes
Battery Life	7 years

Summary

Timekeeping

To Set the Time and Date

Details the step-by-step process for setting the current time, date, and 12/24-hour format on the watch.

Digital Compass

To Take a Direction Reading

Guides users on how to perform a direction reading using the Digital Compass, including placement and button presses.

Barometer/Thermometer

Understanding the Barometer/Thermometer Screen

Barometric Pressure Graph

Details how the barometric pressure graph indicates weather changes and how to interpret the graph's data points.

Barometer and Thermometer Precautions

Altimeter

How the Altimeter Works

Understanding the Altimeter Screen

Selecting Auto or Manual Measurement

Details the procedure for switching between Auto and Manual memory measurement modes for altitude data.

To Use Auto Measurement

Explains how to start, stop, and manage automatic altitude measurements and data storage.

To Use Manual Measurement

Guides users on how to perform manual altitude measurements and store them for later recall.

Setting a Reference Altitude

Explains how to set a reference altitude to improve the accuracy of altitude calculations.

Setting a Reference Altitude

To Set the Altitude Alarm

Provides instructions for setting a specific altitude value that will trigger the altitude alarm.

To Turn the Altitude Alarm On and Off

Explains how to activate or deactivate the altitude alarm function.

Memory Data Management

Auto Measurement Records

Describes the format and characteristics of records generated by the Auto measurement feature.

Manual Measurement Records

MIN and MAX Records

Deleting an Altitude Measurement Record

To Delete an Altitude Measurement Record

Stopwatch

To Measure Times with the Stopwatch

Explains how to use the stopwatch for measuring elapsed time, split times, and two finishes.

Alarm

To Set an Alarm Time

Provides step-by-step instructions for setting a specific alarm time and activating it.

Alarm Operation

To Turn an Alarm and the Hourly Time Signal On and Off

Questions & Answers

What Causes Incorrect Direction Readings?

Addresses common reasons for inaccurate direction readings, including calibration and magnetic interference.

What Causes Different Direction Readings to Produce Different Results at the Same Location?

What Does It Mean When "--" Appears in Place of a Direction?

Why Am I Having Problems Taking Direction Readings Indoors?

How Does the Altimeter Work?

How Does the Barometer Work?

Battery and Sensor Status

Low Battery Indicator

Explains the 'RECO' message indicating low battery power or performance under cold conditions.

Sensor Malfunction Indicator

Explains the 'ERR' message indicating potential malfunction of pressure sensor circuitry or compass calibration issues.

Watch Operation Features

Digital Compass Precautions

Location

Calibrating the Bearing Sensor

Explains the importance and procedures for calibrating the bearing sensor for accurate direction readings.

Calibration Procedures

To Perform Bidirectional Calibration

Details the two-step process for calibrating the bearing sensor against magnetic force.

To Perform Northerly Calibration

Explains how to calibrate the compass by teaching it the direction of north using an external reference.

Changing the Barometric Pressure and Temperature Units

Calibrating the Temperature Sensor

Calibrating the Barometric Pressure Sensor

To Change the Altitude Units