Citizen Eco-Drive b740 Manuel utilisateur

INSTRUCTION MANUAL

(A)

(B)

This watch is an analog diver's watch into which an electronic depth meter function

and chronograph function are built.

• When the water sensor gets wet, the watch is automatically shifted to the dive

mode. (Depth meter function)

• The maximum depth in diving is automatically memorized. (Maximum depth

memorizing function)

• The chronograph function measures the time in units of one second for 50 minutes

at maximum. (Chronograph function)

• This watch is a solar-powered watch provided with a solar power generation (Eco-

Drive) function.

Before using

When the watch does not operate according to the instruction manual, it is

insufficiently charged.

Charge the watch for more than 4 hours, approximately 20 cm (8 in.) away

from the fluorescent or incandescent lamp (30 W) as light sources.

When charging the watch, do not put it too close to the light source.

* When charging the watch under direct rays of the sun, charge for more

than an hour.

IMPORTANT

Safety Precautions (Instructions to be followed at all times)

This manual contains the following instructions that should be strictly followed at all

times to prevent injury to yourself and other persons as well as damage to property.

■Injuries and damage that might be caused by using the watch improperly or

neglecting any of the instructions or precautions contained in this manual are

classified with the following symbols.

DANGER

WARNING

CAUTION

■Important instructions that should be followed are classified with the

following symbols.

Warning (caution) symbol followed by instructions that should be

followed or precautions that should be observed

Warning (caution) symbol followed by prohibited matters.

This symbol indicates matters for which there is the

risk of minor injury or property damage.

This symbol indicates matters for which there is the

risk of death or serious injury.

This symbol indicates matters for which there is a high

risk of death or serious injury.

DANGER

Please read this manual carefully to make sure you have a thorough understanding of

the handling and operating procedures, displays and limitations of this watch and

ensure its proper use. Improper use of this watch or failure to observe displayed

warnings, cautions and instructions can result in the risk of a fatal or serious accident.

CAUTION

Diving is a sport that involves risk. When using this watch for diving, make sure you

have a proper understanding of the procedures for handling the watch as described in

this manual and observe proper procedures. Handling of this watch in a manner

contrary to that described in this manual may prevent the watch from functioning

properly.

Request to Customers

All repairs performed on this watch, excluding repairs involving the band, are to be

performed at the CITIZEN. When desiring to have your watch repaired or

inspected, please contact the Citizen Service Center.

WARNING – Before using this watch for diving –

Since the depth meter function of this watch is not approved as an official depth

gauge, be sure to use this function as an auxiliary means to know the

approximate depth.

Diving is a sport that involves risk. Before using this watch while diving, be sure

to receive diving instruction and training from a qualified instructor to acquire

the experience and skills that are required for safe diving. Always observe the

applicable rules.

• Diving with this watch must be limited to recreational diving (diving without

decompression). Do not use this watch for decompression diving, saturated diving

or diving in a high altitude. The depth meter function of this watch works normally in

seawater with temperatures of +10°C to +40°C (50°F to 104°F), however, depth

indication is incorrect in water other than seawater (specific gravity: 1.025).

• Rapid and sharp change of the atmosphere and/or seawater temperature

occasionally affects the indication and performance of the watch. Therefore, it is

recommended that this watch be used together with another depth gauge. Read the

indication of this watch as a rough guideline.

• Even recreational diving involves many risks. Before using this watch as an

auxiliary instrument for diving, be sure you receive right training in scuba diving by a

qualified instructor in order to acquire experience and technique necessary for safe

diving as well as to master the proper way to handle and operate this watch.

WARNING

Each diver should take responsibility for planning and executing his or her own diving

plan to ensure safe diving.

This watch is not equipped with a function that prevents decompression sickness. In

addition, this watch is also unable to check differences in physiological functions of

individual divers or differences in physical condition on that day.

Since the occurrence of decompression sickness is greatly affected by physical

condition, the degree of the risk of decompression sickness varies depending on your

physical condition on that day. It is recommended to avoid diving whenever you are in

poor physical condition such as when you are ill, fatigued, have not had enough sleep

or have a hangover.

CAUTION – Before using this watch for diving –

When using this watch, the user must receive general training and instructions, and

follow various rules.

The user should not use this watch without a good knowledge and understanding of

the proper way to handle and operate it and the precautions on it. If this watch is

improperly used, it may result in malfunction or breakdown of the watch.

CAUTION – For safe diving –

• When diving, obey the rules of the buddy system every time. (Buddy system means

that two divers pair with each other for safe diving.)

• For safety, it is advised that you enjoy sports diving in the depths around 20 m (60

ft).

• Before diving with this watch, fully charge the watch without fail. When the watch is

not sufficiently charged (the function hand points at “NG”), the depth meter function

cannot be used.

If charge of the watch becomes low considerably during diving, the depth meter

function to measure depth is discontinued.

• After diving, take a good rest following safety rules. If you take a plane or move to a

high place without a sufficient rest after diving, you may suffer from decompression

sickness (caisson disease).

PROHIBITION

Do not use this watch for diving under the following circumstances.

• When the function hand indicates “NG” on the charging level index.

… When the function hand indicates “NG” on the charging level, the watch will not

measure the depth. If the function hand points at “NG” on the charging level during

diving, immediately stop using the depth meter function of the watch since the

watch discontinues depth measurement in this condition.

• When the watch stops running or malfunctions. (Be careful not to knock the watch

against hard things such as diving apparatus, rocks, etc.)

• When the water temperature is out of the guaranteed range for measuring depth.

… The accuracy of the depth meter function is guaranteed under the condition that

water temperature is between +10°C and +40°C (50°F and 104°F).

• For the purpose of knowing a risk of a behaviour or situation.

…This watch is not designed to serve as a drowning prevention instrument or an

emergency instrument.

• In the environment filled with helium gas (saturated diving, etc.).

…Use of the watch in such conditions may cause failure or breakdown of the

watch.

–Circumstances that prohibit use of this watch

in diving –

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