Casio 3443

MO1503-EA
© 2015 CASIO COMPUTER CO., LTD.
Congratulations upon your selection of this CASIO watch.
Applications
The built-in sensors of this watch measure direction, barometric pressure, temperature and altitude.
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 use a second compass to confi rm direction readings.
• Note that CASIO COMPUTER CO., LTD. assumes no responsibility for any damage or loss
suffered by you or any third party arising through the use of this product or its malfunction.
E E-1
ENGLISH
Important!
• Your watch’s Altimeter Mode calculates relative altitude based on changes in barometric pressure
measurement by its pressure sensor. For more information, see pages E-51 and E-65.
• Immediately before embarking or otherwise taking altitude readings, be sure to specify a reference
altitude. If you don’t the readings produced by the watch probably will not be very accurate. For more
information, see “To specify a reference altitude value” (page E-56).
• To ensure correct direction readings by this watch, be sure to perform bidirectional calibration before
using it. The watch may produce incorrect direction readings if you do not perform bidirectional
calibration. For more information, see “To perform bidirectional calibration” (page E-30).
E-2
About This Manual
• Depending on the model of your watch, digital display text appears
either as dark fi gures on a light background, or light fi gures on a dark
background. All examples in this manual are shown using dark fi gures
on a light background.
• Button operations are indicated using the letters shown in the
illustration.
• Note that the product illustrations in this manual are intended for
reference only, and so the actual product may appear somewhat
different than depicted by an illustration.
E-3
Things to check before using the watch
1. Check the battery power level.
Is “
H
” or “
M
” displayed for the battery power indicator (page E-11)?
Go to step 2.
Power is low. Charge the watch by placing it in a location
where it is exposed to light. For details, see “Charging the
Watch” (page E-9).
NO YES
YES
Does any one of the following conditions exist?
• Battery power indicator shows “L” and “LOW” is flashing on the
display.
• “CHG” is flashing on the display.
• The face is blank.
The watch is charged
sufficiently.
For details about
charging, see
“Charging the Watch”
(page E-9).
NEXT
Battery power
indicator
E-4
2. Check the Home City and the daylight saving time (DST) setting.
Use the procedure under “To confi gure Home City and summer time settings” (page E-20) to confi gure
your Home City and daylight saving time settings.
Important!
• World Time Mode and Sunrise/Sunset Mode data depend on correct Home City, time, and date settings
in the Timekeeping Mode. Make sure you confi gure these settings correctly.
3. Set the current time.
See “Confi guring Current Time and Date Settings” (page E-22).
The watch is now ready for use.
E-5
Contents
About This Manual …………………………………………………………………………………………… E-2
Things to check before using the watch ………………………………………………………………… E-3
Charging the Watch …………………………………………………………………………………………… E-9
To recover from the sleep state …………………………………………………………………… E-14
Mode Reference Guide …………………………………………………………………………………… E-15
Timekeeping ………………………………………………………………………………………………… E-19
Confi guring Home City Settings ………………………………………………………………………… E-20
To confi gure Home City and summer time settings ……………………………………………… E-20
Confi guring Current Time and Date Settings ………………………………………………………… E-22
To change the current time and date settings …………………………………………………… E-22
Taking Direction Readings ……………………………………………………………………………… E-25
To take a direction reading ………………………………………………………………………… E-26
To perform bidirectional calibration ………………………………………………………………… E-30
To perform magnetic declination correction ……………………………………………………… E-31
To store a direction angle reading in Bearing Memory ………………………………………… E-32
To set a map and fi nd your current location ……………………………………………………… E-34
To fi nd the bearing to an objective ………………………………………………………………… E-35
To determine the direction angle to an objective on a map and head in that direction
(Bearing Memory)………………………………………………………………………………… E-36
E-6
Specifying Temperature, Barometric Pressure, and Altitude Display Units …………………… E-40
To specify temperature, barometric pressure, and altitude display units ……………………… E-40
Taking Barometric Pressure and Temperature Readings ………………………………………… E-42
To take barometric pressure and temperature readings ………………………………………… E-42
To enable or disable the barometric pressure change alert …………………………………… E-47
To calibrate the pressure sensor and the temperature sensor ………………………………… E-49
Using the Altimeter Mode ………………………………………………………………………………… E-51
To select the altitude screen format ……………………………………………………………… E-52
To select the altitude auto reading interval ……………………………………………………… E-53
To take altitude readings …………………………………………………………………………… E-55
To specify a reference altitude value ……………………………………………………………… E-56
To specify the altitude differential start point ……………………………………………………… E-57
To use the altitude differential value ……………………………………………………………… E-58
To save a reading manually ………………………………………………………………………… E-59
To start trek log value updating …………………………………………………………………… E-62
To stop trek log value updating …………………………………………………………………… E-62
Precautions Concerning Simultaneous Altitude and Temperature Readings ………………… E-67
Viewing Altitude Records ………………………………………………………………………………… E-68
To view altitude records …………………………………………………………………………… E-68
To delete all manually saved data ………………………………………………………………… E-73
To delete data in a specifi c memory area ………………………………………………………… E-73
E-7
Looking up Sunrise and Sunset Times ………………………………………………………………… E-75
To enter the Sunrise/Sunset Mode ………………………………………………………………… E-75
To view the sunrise/sunset time for a particular date …………………………………………… E-76
To look up the sunrise and sunset times for a specifi c location ………………………………… E-77
Using the Stopwatch ……………………………………………………………………………………… E-79
To enter the Stopwatch Mode ……………………………………………………………………… E-79
To perform an elapsed time operation …………………………………………………………… E-79
To pause at a split time ……………………………………………………………………………… E-79
To measure two fi nishes …………………………………………………………………………… E-80
Using the Countdown Timer ……………………………………………………………………………… E-81
To enter the Countdown Timer Mode ……………………………………………………………… E-81
To specify the countdown start time ……………………………………………………………… E-81
To perform a countdown timer operation ………………………………………………………… E-82
To stop the alarm …………………………………………………………………………………… E-82
Using the Alarm …………………………………………………………………………………………… E-83
To enter the Alarm Mode …………………………………………………………………………… E-83
To set an alarm time ………………………………………………………………………………… E-84
To turn an alarm and the Hourly Time Signal on and off………………………………………… E-85
To stop the alarm …………………………………………………………………………………… E-86
Operation Guide 3443

Casio 3443 Specifications

General

Model	3443
Type	Digital
Display Type	LCD
Display	Digital
Brand	Casio
Category	Watch

Summary

Watch Applications and Safety

Measurement Functions Overview

Details the watch's built-in sensors for direction, pressure, temperature, and altitude.

Critical Safety Warnings

Emphasizes precision limitations, need for a second compass, and liability disclaimer.

Initial Setup and Important Notes

Altimeter Mode Accuracy Basis

Explains relative altitude calculation via barometric pressure changes.

Direction Reading Calibration Importance

Highlights the necessity of bidirectional calibration for accurate direction readings.

Manual Conventions and Pre-Use Checks

Understanding Manual Conventions

Explains display conventions, button labels, and illustration usage.

Essential Pre-Use Checks

Steps to check battery power, configure Home City, and set current time/date.

Display Unit Configuration

Setting Temperature Display Units

Procedure to select Celsius (°C) or Fahrenheit (°F) for temperature readings.

Setting Barometric Pressure Units

Procedure to select hectopascals (hPa) or inches of mercury (inHg).

Setting Altitude Display Units

Procedure to select meters (m) or feet (ft) for altitude readings.

Pressure and Temperature Readings

Taking Pressure and Temperature Readings

Instructions on how to perform manual and automatic readings.

Understanding the Barometric Pressure Graph

Interpreting historical pressure data for weather trend analysis.

Interpreting the Pressure Differential Pointer

Using the pointer to gauge relative pressure changes.

Managing Pressure Change Alerts

Enabling or disabling notifications for significant barometric pressure changes.

Sensor Calibration and Altimeter Mode Setup

Calibrating Pressure and Temperature Sensors

Procedure to correct sensor readings if accuracy is compromised.

Altimeter Mode Screen Formats

Selecting between altitude tendency graph and relative altitude displays.

Setting Altitude Auto Reading Interval

Configuring the frequency for automatic altitude measurements.

Altitude Measurement Procedures

Taking Altitude Readings

Step-by-step guide to obtaining altitude measurements.

Advanced Altimeter Functions

Setting Reference Altitude Values

Updating the baseline altitude for improved measurement accuracy.

Using Altitude Differential Value

Measuring altitude changes between two points.

Setting Altitude Differential Start Point

Defining the initial point for measuring altitude differences.

Altitude Data Recording

Manually Saved Altitude Records

Saving specific altitude readings with date and time.

Auto Saved Altitude Values

Automatic recording of high, low, ascent, and descent values.

Trek Log Altitude Data Tracking

Continuous tracking of altitude data during treks.

Altitude Value Update Mechanisms

Updating High and Low Altitude Values

How MAX and MIN altitude values are automatically updated.

Updating Cumulative Ascent and Descent

How ASC and DSC values are updated during measurement sessions.

Altimeter Functionality and Precautions

How the Altimeter Works

Explains the principle of altitude measurement based on air pressure.

Altimeter Measurement Methods

Describes measurement using preset values versus a specified reference altitude.

Altimeter Precautions

Important warnings regarding altitude reading accuracy and usage.

Viewing Altitude Records

Accessing Saved Altitude Data

Procedure to view manually saved, auto saved, and trek log altitude data.

Altitude Data Management

Deleting All Manually Saved Data

Procedure to clear all manually recorded altitude data.

Deleting Specific Memory Areas

Procedure to remove data from specific memory types (manual, auto, trek log).

Sunrise and Sunset Time Lookups

Entering the SunriseSunset Mode

How to access the mode for viewing sunrise and sunset times.

Viewing Times for a Specific Date

Procedure to retrieve sunrise and sunset times for a selected date.

Viewing Times for a Specific Location

Procedure to view times based on city code, latitude, and longitude.

Stopwatch Operations

Entering the Stopwatch Mode

How to access the stopwatch function.

Elapsed Time Measurement

Performing basic timing operations.

Split Time Measurement

Pausing the stopwatch to record split times.

Measuring Two Finishes

Timing the first and second runner finishes.

Countdown Timer Operations

Entering the Countdown Timer Mode

How to access the countdown timer function.

Specifying Countdown Start Time

Setting the duration for the countdown timer.

Performing Countdown Timer Operation

Instructions for using the countdown timer.

Alarm and Hourly Signal Functions

Entering the Alarm Mode

How to access alarm and hourly time signal settings.

Setting Alarm Times

Procedure to configure daily alarms and the snooze alarm.

Managing Alarms and Hourly Signal

Enabling or disabling individual alarms and the hourly time signal.

World Time Mode Operations

Entering the World Time Mode

How to access the mode for viewing times in different time zones.

Viewing Times in Other Time Zones

Procedure to scroll through and view times for various cities.

Setting Daylight Saving Time for Cities

Adjusting DST settings for selected world cities.

Illumination and Auto Light Switch

Manual Illumination Control

Activating the display backlight manually.

Adjusting Illumination Duration

Setting the time the backlight stays illuminated.

Managing the Auto Light Switch

Enabling or disabling the automatic backlight feature.

Other Watch Settings

Button Operation Tone Control

Enabling or disabling the audible feedback for button presses.

Power Saving Mode Control

Enabling or disabling the power saving function to conserve battery.

Troubleshooting Common Issues

Correcting Time Setting Errors

Resolving discrepancies in the watch's current time setting.

Troubleshooting Sensor Malfunctions

Diagnosing and resolving problems with sensors.

Resolving ERR Display Messages

Understanding and addressing error messages on the display.

Causes of Incorrect Direction Readings

Identifying factors that affect compass accuracy and how to mitigate them.

Technical Specifications