Seiko DH33 User Manual

Cal. DH33

INSTRUCTIONS (P. 2) BEDIENUNGSANLEITUNG (S. 30) INSTRUCTIONS (P. 58) ISTRUZIONI (P. 86)

You are now the proud owner of a SEIKO Diving Computer Cal. DH33. For best results, please read the instructions in this booklet carefully before using your SEIKO Diving Computer. Please keep this manual handy for ready reference.

Sie sind jetzt stolzer Besitzer eines SEIKO Tauchcomputers Kal. DH33. Lesen Sie diese Bedienungsanleitung vor der Verwendung Ihres SEIKO Tauchcomputers aufmerksam durch, um seine optimale Nutzung zu gewährleisten. Heben Sie diese Bedienungsanleitung gut auf, um jederzeit wieder nachlesen zu können.

Vous voici l’heureux propriétaire d’un Ordinateur de Plongée SEIKO Cal. DH33. Pour en obtenir d’excellentes performances, veuillez lire attentivement les explications de ce livret avant d’utiliser cet appareil SEIKO. Conservez cette brochure de manière à pouvoir la consulter au besoin.

Grazie per aver acquistato questo orologio computer per immersioni, SEIKO Cal. DH33. Per ottenere i migliori risultati leggere attentamente le istruzioni di questo libretto prima di passare all’uso del computer stesso. Tenere poi il manuale a portata di mano, per ogni eventuale futura, ulteriore consultazione.

INSTRUCCIONES (P. 118) INSTRUÇÕES (P. 146)  ! (174 )

Usted es ahora un orgulloso propietario de un Ordenador de Buceo Cal. DH33 SEIKO. Para los mejores resultados, por favor, lea cuidadosamente las instrucciones de este librillo antes de utilizar su Ordenador de Buceo Cal. DH33 SEIKO. Le rogamos que guarde este conveniente manual para pronta referencia.

Você pode sentir-se orgulhoso de ter adquirido um SEIKO Computador de Mergulho Cal. DH33. Para obter dele os resultados máximos, solicitamos-lhe que, antes de usar o seu SEIKO Computador de Mergulho, leia atentamente as instruções contidas neste opúsculo. E guarde este manual para referências futuras.

English

ENGLISH

WARNING

The SEIKO Diving Computer Cal. DH33 is intended for use in an inherently hazardous form of recreation. Therefore, it is absolutely essential that you strictly observe all instructions for the use and maintenance of the watch set forth in this manual.

First of all, this watch is for use in recreational (no-decompression) diving in water having a temperature range -5° C to +40° C (+23° F to +104° F) only by adults in good health and having average physical strength. It is not suitable for use in saturation diving using helium gas.

The watch uses an algorithm developed by Mr. Randy Bohrer, one of the most distinguished scientists in this field, which expands upon the theories of the so-called Swiss model. Unless you have undergone scuba training with a qualified instructor, you can neither fully appreciate the concept of those theories and the nature of hazards you may face while diving, nor properly understand the meanings of indications and warnings the watch provides.

The watch also provides data for Nitrox diving. Do not use the watch for Nitrox

diving unless you are specially qualified to dive with Nitrox, having full knowledge of the potential hazards of Nitrox diving. It is extremely hazardous to dive using the watch if it is set for the wrong percentage of oxygen

2). You should check before every dive if the

(FO FO

2 value set for the watch corresponds exactly

to the actual percentage of oxygen in your scuba tank.

Anticipating emergencies, the watch provides information for decompression diving. Decompression diving can be quite hazardous, however, and you should not make decompression dives.

Do not attempt to dive using the watch unless you have been properly trained in scuba diving, possess the requisite experience and skill to dive safely, have thoroughly familiarized yourself with the operation and maintenance of the watch, and have tested all watch functions prior to each dive.

In addition, sharp fluctuations in atmospheric pressure and aquatic environments may affect the performance of the watch. The indications and warnings it provides serve only as general guidelines to minimize the possibility of

decompression sickness and other hazards, and are not intended to guarantee the safety of the diver. It is necessary to use other diving equipment together with the watch for safety’s sake.

Also note that the possibility of decompression sickness and other hazards may increase depending on such factors as the individual diver’s physiological characteristics, environmental conditions and the extent of the diver’s fatigue.

Finally, the watch is intended for use by a single user. Do not share it with other divers. If any one other than the owner of the watch uses it, make sure that the watch is reset to the initial settings with the measurements stored in it being all erased.

WARNING

WARNING notes indicate any condition or practice which, if not strictly observed, could result in severe personal injury or possible death.

CAUTION

CAUTION notes indicate any condition or practice which, if not strictly observed, could result in personal injury or property damage.

English

PRECAUTIONS FOR DIVING

● Strictly observe the precautions below to enjoy safe diving with the SEIKO Diving Computer Cal. DH33.

English

IN GENERAL

● Do not stay underwater beyond the no-decompression limits.

● When you have descended below 15 m (50ft), be sure to make

a safety stop in ascent at 3 to 6 m (10 to 20 ft). If the watch gives a decompression warning, it is recommended that you stay at the decompression stop depth longer than the stop time that the watch indicates.

* While making a decompression stop, be sure to check the

amount of air remaining in your tank.

● The watch does not indicate the amount of air in your tank. Use a submersible pressure gauge to check it.

● For safety’s sake, use other diving equipment such as dive computer, depth gauge and another diver’s watch together with the watch.

● The watch cannot serve as your “buddy”. Abide by the rules of scuba diving, and never dive alone even if you have the watch on your wrist.

● Abrupt change of altitude after diving is extremely hazardous to your health. Do not move across the altitude ranks that the watch indicates.

BEFORE DIVING

● Check that:

• the watch is operating normally.

• there are no visible scratches or cracks in the band and

crystal.

• the band is securely fastened to the watch case.

• the battery life indicator (battery mark) is not shown on

the display.

• all segments of the display are not flashing.

• the altitude rank mark is not flashing.

• not all nine residual nitrogen indicator bars are lit up.

* If you find any malfunction, do not use the watch for diving.

● If the temperature of the watch is much higher than that of the water, for example, after having been left under direct sunlight before being put in water, the watch may not measure the depth of water accurately. Soak it in water for approximately 5 minutes before using it for diving.

● Be sure to check that the actual percentage of oxygen in your

● Check that the measurement units of depth and temperature

2) is properly set for the watch. FO2 cannot be

tank (FO readjusted while you are underwater.

are set according to your requirement. They can be selected from “meters (m) and centigrade (° C)” and “feet (ft) and Fahrenheit (° F)”.

WHILE DIVING

● Take care not to hit the watch against hard objects such as rocks.

● Check that the watch indicates the current depth properly. If “- - -” or “Err” is shown when the current depth is less than 100 m (329 ft), stop using the watch immediately, and use other diving equipment such as diving computer, depth gauge and another diver’s watch you have with you.

● While in the dive mode, the display cannot be changed over to modes other than time/calendar by pressing button “C”.

● Depending on the aquatic environment where the watch is used, the beeping sound of the regular alarm and warnings may or may not reach your ears.

● The watch measures the depth of water on the basis of seawater having a specific gravity of 1.03. When it is used in fresh water such as lakes, therefore, the displayed depth should be corrected by multiplying it by 1.03. Nodecompression limits, however, will be calculated and displayed normally without any adjustment.

Ex.) If the displayed depth of the water is 19.4 m (64 ft) in fresh

water (specific gravity 1.00), the actual depth is:

19.4 m x 1.03/1.00 ≒ 20.0 m (66 ft)

AFTER DIVING

● Be sure to rinse the watch in fresh water, and wash out all seawater, soil, sand, etc.

● After cleaning the watch in fresh water, be sure to wipe it thoroughly dry.

● If the watch is left soaked in water for a long time for removing salt or other purposes, the auto sensor function is activated and consumes battery energy.

● If a grain of sand or the like gets in the pressure sensor, rinse the watch in fresh water to wash it out. Do not use anything with a pointed tip to pick it out or an air blast to blow it out. If it sticks in the pressure sensor and cannot be washed out, consult the retailer from whom it was purchased.

● Be careful not to expose the pressure sensor to solvents such as alcohol and gasoline, as this will cause malfunctions.

● When the surface interval time is less than 10 minutes, time/ calendar setting, FO made.

● If the measurement exceeds the measurable range of the watch, all the segments of the display flash. In that case, the watch cannot be used for diving for 48 hours after the dive is over.

2 setting and hour correction cannot be

CONTENTS

WARNING ................................................................... 2

PRECAUTIONS FOR DIVING ..................................... 4

FEATURES .................................................................. 6

BUTTONS AND DISPLAY CHANGE .......................... 7

HOW TO USE TIME FUNCTIONS .............................. 8

■ TIME/CALENDAR FUNCTION ................................. 8

TIME/CALENDAR SETTING .......................................... 8

■ REGULAR ALARM FUNCTION ................................ 9

REGULAR ALARM SETTING ........................................ 9

ENGAGEMENT/DISENGAGEMENT OF

REGULAR ALARM AND HOURLY TIME SIGNAL ......... 9

■ ILLUMINATING LIGHT ............................................. 10

■ HOUR CORRECTION FUNCTION ............................ 11

HOW TO USE THE HOUR CORRECTION FUNCTION . 11

HOW TO USE DIVE COMPUTER FUNCTIONS ......... 12

■ NITROX DIVING FUNCTION ................................... 12

HOW TO SET FO2 ...................................................................................... 12

■ ALTITUDE COMPENSATION .................................. 14

■ SELECTION OF MEASUREMENT UNITS ............... 14

HOW TO SET THE DEPTH & TEMPERATURE UNITS .. 14

■ DIVE PLAN FUNCTION ............................................ 15

HOW TO USE THE DIVE PLAN FUNCTION .................. 15

■ DIVE FUNCTION ....................................................... 16

DISPLAY WHILE DIVING .............................................. 16

DISPLAY AFTER A DIVE ............................................... 19

■ DIVE LOG FUNCTION .............................................. 20

HOW TO RECALL LOG DATA ...................................... 20

USE OF TERMS IN THIS MANUAL ........................... 23

DEFINITION OF THE TERMS AND BASIC DESIGN

OF THE WATCH ............................................................ 23

EXPLANATION OF THE TERMS ................................... 24

BATTERY CHANGE .................................................... 26

TO PRESERVE THE QUALITY

OF YOUR WATCH ...................................................... 27

TROUBLESHOOTING ................................................. 28

SPECIFICATIONS ........................................................ 29

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English

FEATURES

The SEIKO Diving Computer Cal. DH33 is a digital diver’s watch featuring dive computer functions.

English

An algorithm is programmed into it to calculate multilevel diving.

DIVE COMPUTER FUNCTIONS

■ Algorithm

● The watch has an algorithm that calculates multilevel diving.

● The watch uses an algorithm developed by Mr. Randy

Bohrer, one of the most distinguished scientist in this field, which expands upon the theories of the so-called Swiss model.

■ Dive function

● The watch is equipped with an auto switch that senses

water and activates the dive function.

● The diving data is measured automatically while diving between 1.5 m (5 ft) and 99.9 m (328 ft), eliminating the need for any button operation.

● The residual nitrogen and residual oxygen are indicated graphically for a quick grasp of the current safety situation.

■ Altitude compensation

● The watch measures the current altitude automatically,

calculating the residual nitrogen and other data for the next dive taking into account the altitude change following an air flight or move to high ground.

■ Nitrox diving function

● The watch can provide data for nitrox diving.

● The percentage of oxygen (FO

scuba tank can be set for the watch from 22% to 50%.

2) in the gas mixture of your

■ Dive plan function

● No-decompression limits are calculated, automatically

taking into consideration the current residual nitrogen and altitude.

● This mode is convenient for planning the next dive.

■ Dive log function

● Details of up to 30 dives are recorded automatically.

● The log data includes date of dive, entry/exit time, dive time,

maximum depth, FO mixture), and residual nitrogen/oxygen at the end of dive.

● The measurement units of depth and temperature can be selected from “meters (m) and centigrade (° C)”, and “feet (ft) and Fahrenheit (° F)”.

TIME FUNCTIONS

■ Time/calendar function

● Hour, minutes, seconds, month, date and day are displayed.

■ Fully automatic calendar

● The calendar adjusts automatically for odd and even months

including February of leap years up to 2050.

■ Regular alarm function

● The alarm can be set to ring once a day at a designated time.

Hourly time signal and alarm test functions are also provided.

■ Hour correction function

● When you are traveling around different time zones, the

time and calendar of the place you visit can be shown easily with only the press of a button. The time can be adjusted in 30 minute increments, making it available for those areas having a time difference in 30 minute increments from GMT.

OTHER FUNCTION

■ Illuminating light (Electroluminescent panel)

● Certain materials emit light when voltage passes through

them. This phenomenon, known as “electroluminescence”, is used to illuminate the display.

● With the press of a button, the light illuminates the display for 2 to 3 seconds for easy viewing in the dark.

2 setting (percentage of oxygen in gas

BUTTONS AND DISPLAY CHANGE

● Other than in the DIVE mode, the display changes in the following order by pressing button .

* The display indicator “ ” shows to which display the watch is set.

* If the watch is left untouched in any of the displays other than TIME/CALENDAR and DIVE, the display will automatically return to the TIME/CALENDAR in 5 to 6 minutes.

English

TIME/CALENDAR function

• Displaying time, calendar (month, date and day) and designated alarm time

Press button .

➟

HOUR CORRECTION function

• Adjusting the time difference

Press button .

➟

• Recalling log data

Press button .

● When you make a dive, the auto switch (water contact sensor) works to change over the mode

automatically.

to DIVE

Auto switch

Pressure sensor

DIVE function

Press button .

(Water contact

sensor)

REGULAR ALARM function

• Setting regular alarm and turning on/off hourly time signal

➟

Press button .

NITROX DIVING function

• Setting percentage of oxygen (FO

➟

Press button .

DIVE PLAN functionDIVE LOG function

• Planning the next dive

HOW TO USE TIME FUNCTIONS

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■ TIME/CALENDAR FUNCTION

TIME/CALENDAR SETTING

● The time/calendar setting cannot be made for 10 minutes

after a dive.

Press to show TIME/CALENDAR display.

Current

time

Regular

alarm

time

▼

Press to show TIME/CALENDAR SETTING display.

* If the watch is left untouched in the TIME/CALENDAR SETTING

display, the display will automatically return to the TIME/ CALENDAR in 1 to 2 minutes.

▼

Press to select the digits to be adjusted (flashing).

▼

* With each press, the digits flash in the following order:

Seconds Minutes

➡

▼

• Regular alarm time is displayed only when it is set.

Hour Year

➡

Date Month12-/24-hour indication

➡

▼

Press to set the flashing digits.

* The digits move quickly by keeping the button pressed.

* When both the hour and minute digits are flashing, changeover

between 12- and 24-hour indications can be made.

* For the 12-hour indication, “AM” or “PM” is shown. There is

no mark for the 24-hour indication.

< Seconds setting >

When the seconds digits are flashing, press button D in accordance with a time signal. The digits are reset to “00” and start immediately.

* When the digits count any number from 30 to 59, one minute is

added and the seconds start immediately.

▼

Press to return to TIME/CALENDAR display.

When all the segments of the display light up:

● If buttons C and D are pressed at the same time in the

TIME/CALENDAR SETTING display, all the segments of the display will light up. This is not a malfunction. Press button A, B, C or D to return to the TIME/CALENDAR display, and set the time/calendar again.

■ REGULAR ALARM FUNCTION

● The alarm can be set to ring once a day at a designated time.

● Once the alarm is set, the set time is shown in the TIME/CALENDAR display.

● Alarm can be tested.

● Hourly time signal is provided.

REGULAR ALARM SETTING

Press to show REGULAR ALARM display.

▼

Press to show REGULAR ALARM SETTING display.

▼

With each press, flashing digits change in the

▼

following order:

Hour Minutes

▼

Press to set the flashing digits.

* The digits move quickly by keeping the button pressed.

▼

Press to return to REGULAR ALARM display.

Notes:

1. If the watch is left untouched in the REGULAR ALARM SETTING display, the display will automatically return to the TIME/ CALENDAR in 1 to 2 minutes.

➡

2. When the digits are adjusted in the REGULAR ALARM SETTING display, the alarm is engaged automatically, and the regular alarm mark is shown on the display.

3. When setting the hour digits in the 12-hour indication, check that AM/PM is correctly set. “A” or “P” is shown for the AM or PM setting, respectively.

ENGAGEMENT/DISENGAGEMENT OF REGULAR ALARM AND HOURLY TIME SIGNAL

HOW TO USE TIME FUNCTIONS

With each press in the REGULAR ALARM display, the regular alarm and hourly time signal are engaged and disengaged in the following order:

➡

Both engaged

➡

Neither engaged

➡

Alarm engaged

➡

Hourly time signal engaged

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