Casio 2172 - User Manual

2172-1
Module No. 2172
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.
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.
Snorkeling/Scuba Diving Precautions
• Make sure that you have received proper diving training before using
this watch underwater.
• Always use the “buddy system” when diving. Never dive alone.
• Note that this watch is NOT a diving computer, and is not capable of
making decompression calculations.
• The depth meter function built into this watch should only be used as
a “back-up” to your standard depth gauge.
• Note that this watch cannot be used in helium atmospheres.
• Though the function of this watch is not affected by magnetism, long
use near a source of magnetism can case the watch itself to become
magnetized. A magnetized watch can interfere with the precision of
readings produced by an underwater compass. To avoid such
problems, keep the watch away from your compass when taking
readings.
5
630
20 00
0
05 1
Before Diving
• Before beginning each dive, check to make sure that the BATT (and/
or RECOVER) message (which indicates that battery power is weak)
and/or ERR message (which indicates sensor malfunction) are not on
the display. If either message is on the display, contact an authorized
CASIO Dealer/Distributor or authorized CASIO Service Point to have
the battery replaced or to have the watch repaired.
• Make sure that the current time setting of the watch is correct.
• Check the glass, case, and band for cracks or chips.
• Make sure that the band is fastened securely around your wrist.
While Diving
• Check to make sure that the timer and depth gauge are operating
properly.
• Warning indicators flashing on the display indicate the possibility of
a data error. For details, see “Warning Indicators”.
• Take care when diving near rocks or coral to avoid scratching or
damaging the watch.
After Diving
• To avoid corrosion, rinse your watch thoroughly with fresh water to
remove salt water, dirt, etc. When possible, soak the watch in fresh
water overnight to make sure that all salt is removed.
• When using a metal band, occasionally clean the gaps in the band
using a soft toothbrush and soapy water. Failure to keep a metal
band clean can result in corrosion of the watch, soiling of clothing, or
irritation of sensitive skin.
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.
GENERAL GUIDE
For information on how to read the display, refer to the separate instructions
on each function.
5
630
20 00
0
05 1
5
630
300
0
05 1
x
10 58
11 58
3
82
500
x
10 58
11 58
3
82
500
10 58
20 1
2
000
10 58
4
00
▲
Press D.
Timekeeping Mode
▲
Press C.
Recall Mode
▲
Dive Profile Mode
▲
Alarm Mode
Diving Mode
▲
▲
▲
Hold down C
for two seconds.
Time/Date
Temperature
TIMEKEEPING
Use the Timekeeping Mode to set the current
time and date, and to view the current time.
You also can adjust the display contrast while
in the Timekeeping Mode.
To reset the seconds count to zero
1. In the Timekeeping Mode, hold down A
until the seconds digits start to flash, which
indicates the setting screen.
2. Press D to reset the seconds count to
00.
• Pressing D 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 twice to exit the setting screen.
To set the time and date
1. In the Timekeeping Mode, hold down A
until the seconds digits start to flash, which
indicates the setting screen.
• While the seconds digits are flashing, press
D to set the seconds count to
00.
2. Press C to move the flashing in the
sequence shown below to select other
settings.
• See “Daylight Saving Time (DST)” for details on the DST setting and
“Adjusting Display Contrast” for information about contrast.
3. Use C to move the flashing to the hour, minutes, year, month, and day,
and make the settings you want for each.
• While the hour, minutes, year, month, or day setting is flashing, use D (+)
and B (–) to change it.
• When the 12/24-hour setting is selected, press D to toggle between
12-hour (
1CL) and 24-hour (CZL) timekeeping.
5
630
20 00
0
05 1
5
630
20 00
0
05 1
Seconds
Month – Day
Day of week
Hour : Minutes
Year
AM indicator
Seconds
°C/°F M/F
Minutes
Contrast
12/24-Hour
format
DST Hour
Day
Month
Year
MO0403-B

Summary

Getting Acquainted

Snorkeling and Scuba Diving Precautions

Important safety guidelines and warnings for underwater use.

Pre-Dive Checks

Actions to perform before starting each dive for safety and functionality.

During Dive Procedures

Checks and precautions to take while actively diving.

Post-Dive Care

Rinsing and cleaning procedures for the watch after diving.

General Guide to Watch Functions

Timekeeping Mode Overview

Setting the Time and Date

Diving Functions and Features

Log Memory Details

Information on what dive data is stored and the memory capacity.

Using the Diving Mode

Entering the Diving Mode Before Diving

Steps to activate the Diving Mode prior to starting a dive.

Exiting the Diving Mode After Diving

How to safely exit the Diving Mode after completing a dive.

Recalling Log Data

How to access and review stored dive logs from memory.

Compartment Nitrogen Loading Graph

Important Nitrogen Loading Information

Crucial safety information regarding nitrogen uptake during dives.

Compartment Nitrogen Loading Graph Details

Graph Limitations and Cautions

Warnings that the graph does not show non-decompression limits.

Nitrogen Loading Graph Applications

Super Saturation and Non-decompression Diving

Explains super saturation and non-decompression dive concepts.

Precautions for Non-Decompression Diving

Key warnings and limitations concerning the nitrogen loading graph.

Nitrox Diving Considerations

Special considerations and safety advice for diving with Nitrox.

Safety Stops and Nitrogen Graph Interaction

Guidance on safety stops and their relation to the nitrogen graph.

Measurement Errors and Warning Indicators

Depth Reading Errors

Causes and effects of incorrect depth measurements.

Sensor Errors

Potential sensor malfunctions and their corresponding indicators.

Understanding Warning Indicators

Explanation of various warning indicators and their meanings.

Weak Battery Power Indicators

Low Battery Warning

Indicators and effects of low battery power on watch functions.

Reference Section: General Operations

How the Diving Function Works

Valid Dives and Invalid Dives

Definition of valid and invalid dives based on duration and depth.

Dive Time Calculation

Explanation of how dive time is measured and calculated.

Depth Reset Procedures (0.0 m;F)

Details on automatic and manual depth resets.

Manual Depth Reset (0.0 m;F)

Reference Section: Diving and Measurement Details

Reset and Accuracy Warnings

Pressure Measurement Precautions

High-Altitude and Fresh-Water Diving

Log Memory Integrity

Interpreting Warning Indicators

Explanation of warning indicators and causes of incorrect data.

Low Battery Warning During Dive

Actions to take if a low battery warning appears while diving.

Forgetting to Enter Diving Mode

Temperature Sensor Calibration

Calibrating Temperature Readings

Troubleshooting Common Issues

Depth and Log Data Problems

Display and Operation Faults

Backlight and Data Access Issues

Casio 2172 Specifications

General

Model	2172
Display Type	LCD
Case Material	Resin
Water Resistance	50 meters
Band Material	Resin
Accuracy	±30 seconds per month
Type	Digital
Battery Life	Approx. 7 years on CR2016
Alarm	Yes
Stopwatch	Yes
Backlight	LED backlight
Calendar	Auto-calendar