Manual Casio Pro Trek PRG-340-3ER Watch

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Manual

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Contents
Precautions
Operating Precautions
User Maintenance
Battery
Before Getting Started...
General Guide
Indicators
Navigating Between Modes
Mode Overview
Charging
Viewing the Face in the Dark
Time Adjustment
Adjusting the Current Time Setting
World Time
Checking World Time
Specifying a World Time City
Alarm and Hourly Time Signal
Configuring Alarm Settings
Configuring the Hourly Time Signal Setting
Turning Off an Alarm or the Hourly Time Signal
Digital Compass
Taking a Compass Reading
Saving a Bearing to an Objective (Bearing
Memory)
Calibrating Compass Readings
Calibrating Compass Readings
Setting Up for True North Readings
(Magnetic Declination Calibration)
Digital Compass Reading Precautions
Altitude Measurement
Checking the Current Altitude
Calibrating Altitude Readings (Offset)
Setting a Reference Altitude and Taking
Altitude Differential Readings
Setting the Measurement Interval for Auto
Record Data and Climb Record Data
Changing Displayed Information
Recording Altitude Readings
Specifying the Altitude Measurement Unit
Altitude Reading Precautions
Barometric Pressure and
Temperature Measurement
Measuring Barometric Pressure and
Temperature
Checking Changes in Barometric Pressure
Over Time
Checking the Change Between Two
Barometric Pressure Readings (Barometric
Pressure Differential)
Sudden Barometric Pressure Change
Indications
Correcting Measured Barometric Pressure
and Temperature Values (Offset)
Specifying the Barometric Pressure Unit
Specifying the Temperature Measurement
Unit
Barometric Pressure and Temperature
Reading Precautions
Viewing Altitude Records
Viewing Recorded Data
Deleting Data
Sunrise and Sunset Times
Looking Up Today’s Sunrise and Sunset
Times
Looking Up Sunrise and Sunset Times by
Specifying a Day
Looking Up Sunrise and Sunset Times by
Specifying a Location
Stopwatch
Measuring Elapsed Time
Measuring a Split Time
Timing the First and Second Place Finishers
Timer
Setting a Start Time
Using the Timer
Other Settings
Enabling the Button Operation Tone
Configuring Power Saving Function Settings
Other Information
City Table
Specifications
Troubleshooting
Watch Operation Guide 3513
1
MA2207-EA
OPUM-G
© 2022 CASIO COMPUTER CO., LTD.
Download manual in English (PDF, 1.84 MB)
(Consider the environment and only print this manual if it is really necessary)

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Specifications

Brand Casio
Model Pro Trek PRG-340-3ER
Category Watches
File type PDF
File size 1.84 MB

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Frequently Asked Questions about Casio Pro Trek PRG-340-3ER Watch

Our support team searches for useful product information and answers to frequently asked questions. If you find an inaccuracy in our frequently asked questions, please let us know by using our contact form.

A battery in my device is oxidized, can I still safely use it? Verified

Ja, the device can still be safely used. Firstly, remove the oxidizd battery. Never use bare hands to do this. Then clean the battery compartment with a cotton swab dipped in vinegar or lemon juice. Let it dry and insert new batteries.

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My mechanical watch runs fast, what can I do? Verified

This might be caused by exposure to a magnetic field. It can be solved by a demagnetisation process performed by a professional watchmaker.

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What do AM and PM stand for? Verified

AM stands for Ante Meridiem and indicates that the time is before midday. PM stands for Post Meridiem and indicates that the time is past midday.

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What is a 'Chronograph'? Verified

A 'Chronograph' is literally a 'writer of time'. The term is used to describe clocks and watches that tell the time of day as well as measure a certain period of time, like a stopwatch.

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What is GMT? Verified

GMT stands for Greenwich Mean Time (sometimes called UTC, standing for Coordinated Universal Time). It is the time for the longitude 0, that passes through Greenwich near London.

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What is a quartz movement? Verified

Watches and clocks with a quartz movement are driven by a battery. This sends an electric current through quartz crystals that will vibrate. These vibrations are passed on to the movement. Because the vibrations have a fixed frequency, watches and clocks with a quartz movement are extremely precise.

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There is moisture on the inside of the glass of my Casio watch, what should I do? Verified

Casio states that if the moisture appeared after an extreme change in temperature and disappears relatively quickly afterwards, there is probably nothing wrong. If the moisture does not disappear, you should have your watch repaired as soon as possible.

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Manual Casio Pro Trek PRG-340-3ER Watch

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