Citizen MA9XXX User Manual

CITIZEN QUARTZ

HYPER AQUALAND

Model No. MA9XXX

Cal. No. D201, D207/D202, D208

• INSTRUCTION MANUAL

CTZ-B6795

Before Use

Depending on the model the specifications differ at
one place. Please confirm the specifications of
your watch beforehand by the following method.

• Confirm the Caliber No.
of your watch.

Confirm the Caliber No.
of your watch by the
stamp on its case back.

Introduction

If you follow the right rules of scuba diving and skin
diving, you can enjoy safe water sports. But on the
other hand, there is an element of danger from the
bends and other possible accidents. So after
receiving proper training, please check for safety
and enjoy your diving.
When you use this product, please understand the
instructions and warnings well, so that you may use
it properly.

In a case where this product is used in a way
that is not mentioned in the USER’S manual, the
watch might not function properly.

Furthermore all repairs including battery
replacement should be carried out by a Citizen
Service Centre. Please arrange for a Citizen Service
Centre to look after your watch through the shop
from which it was purchased.

A. Special functions of this watch

This is a full-scale divers watch with digital display
and an electronic depth gauge.

1) This watch measures and displays depth as soon

as you start diving, due to the water sensor

2) This watch measures the water temperature while

diving; and when not diving, the air temperature.

3) While you are diving, various log data is recorded.

4) After completing a dive, by using a communication

unit, you can transfer data to a personal computer
and also confirm the data with a personal computer

★ Compatible computers: IBM PC / AT or any other

compatible computer with keyboard and monitor.
(There are some computers that are not
compatible.) For more details, please read the
“Communications AQUALAND GRAPH USER’S
MANUAL”.

5) The elapsed time after a valid dive is completed
(maximum of 24 hours) is measured automatically.
This watch can be used as a safety guideline for
resting time on the surface. [surface mode]

6) To ensure safe diving, various warning functions
are included.

B. For safe diving

• Basic knowledge and techniques are required to

dive safely so please take the necessary training
to acquire them.

• In order to use this watch safely, C. [Usage points

that should be avoided while diving] and D. [for
safe usage] need to be understood sufficiently
when using this watch for diving.

C. Usage points that should be avoided while

diving [make sure you read this warning]

When you use this watch for diving, please heed the
following points. [Do not use under these conditions.]

WARNING:

1. Do not use under these conditions:

a. If you have not taken a course on safe diving,

please do not use the watch.

b. Please do not use the watch outside the

temperature limits. The temperature limits for
this watch are 10

0

C ~ 400C (100F ~ 1040F). If
you use the watch outside of this range, it will
not display accurate depth.

c. Never use the watch while diving with helium

gas [saturated diving]. If you use the watch
with helium gas, it is likely to cause problems,
or failure.

d. Do not use the watch for determining your

actions in dangerous situations. This watch is
not designed as equipment for the prevention
of emergencies or accidents.

e. Do not use this watch as a substitute for

pressure equipment in applications other than
diving or instead of a buddy system. This watch
is not a gauge or meter which is authorised by
any public organisation, it should be used as a
guide line for auxiliary equipment.

f. Do not use this watch at altitudes over 4000m

(13,120 ft) since water depth cannot be
measured at higher altitudes.

g. Do not use the watch outside of the water

depth measurement range.

h. In case the safe diving warning function

activates, immediately check the watch, and
stop using it. Look up “various warning
functions” to find out how to deal with each one.

(Before Diving)

1) When the water sensor check warning function
operates – the dot display alternates between
dot display and “CHEK.” (D201/D207)/
“ERR”(D202/D208) display as a warning.

2) When the battery warning function operates –
the dot display alternates between dot display
and “BAT.” (D201/D207)/“BT” (D202/D208)
display as a warning.

3) When the unusual air pressure error warning
function operates – the dot display alternates
between dot display and “ERR” display as a
warning.

4) When the watch stops or something goes

wrong with it, please do not use it.

5) When the water depth meter

display on the watch shows a big
difference with other water depth
meters, please refrain from using
the watch.

(While Diving)

1) When the depth chart error warning function
operates – the dot display alternates between dot
display and “ERR” display as a warning.

2) When the battery warning function operates – the
dot display alternates between dot display and
“BAT.” (D201/D207)/“BT” (D202/D208) display, as
a warning. Once the battery warning display
appears, please realise we can”t guarantee the
accuracy of the depth measurement.

3) When the watch stops or something goes

wrong with it, please do not use it.

4) When the water depth meter has a big
difference with other water depth meters,
please do not use the watch.

D. For safe usage
[Make sure you read this caution]

CAUTION:

1. Items to check for safe usage

a. The depth display of this watch is up to 80m

(260ft). Although this watch has water resistance

up to 80m (260ft), for safe diving we recommend
that you stay shallower than 30 metres (100ft)
[sports diving].

b. The water depth meter in this watch is set

according to the sea water standard (1.025
gravity)

In case you use the watch in fresh water, i.e., you
need to make a conversion.

[Example]

When the watch is 80m (260ft) deep, in the case of
sea water it displays 80m (260ft), but when in fresh
water, it displays 78m (253ft); shallower than what it
really is.

c. Avoid descending too rapidly.

In order to get an accurate depth
reading, slow down the descent, or stop.

d. Avoid ascending too rapidly.

If you ascend at a speed greater than

1.5m (5ft) per 5 secs (D201/D207).
/0.9m (3ft) per 6 secs (D202/D208).
18m (60ft) per minute (D201/D207)
/9m (30ft) per minute (D202/D208)
according to the U.S. navy diving
manual, then the ascending speed
warning function will operate. The dot display
changes to “SLOW” display and an alarm will
sound.
Please maintain a safe ascending speed. Slow
down your ascent or stop in order to get an
accurate depth reading.

As rapid ascending is hazardous to the
human body, sometimes causing the bends,
always avoid it.

*The new regulation of the U.S. Navy diving manual
is executed in 1993, changing the Surface Speed
Warning at the rate of 9m/min. from 18m/min.

e. Do not use the watch in places where it is

exposed to large changes of air pressure or
temperature.

The watch will automatically check for unusual air
pressure, while in various normal modes (time
and calendar mode / surface mode / log mode /
alarm mode). If any abnormality is detected, the
dot display will alternate between dot display and
“ERR” display. When this happens, the water
depth cannot be measured. If the “ERR” display
disappears, the watch can be used normally.
✩When boarding a plane
When exposed to sudden pressure change
(pressurisation) as in the inside of an aeroplane, if
applicable, if the water sensor is touched with a
finger or moistened, the watch may change to
dive mode. If it changes to dive mode, dry the
water sensor, and cancel dive mode by holding
down button 

M

for more than 2 seconds.

f. We recommend that you change the battery as

early as possible.

The life of the battery in this watch is about 3 years
after a new battery is installed. (Please look up S.
[Battery] for the conditions of usage). However,
the life of the battery changes a lot depending on
the frequency of use of various functions. In order
to enjoy safe diving, we recommend that you
change the battery ahead of time.

2. Things to check before diving

When you dive please check the following points.

a. Check your watch

1) Check that there are no
problems like scratches, cracks
or chips on the strap or glass.

2) Check that the band and
watch body are attached
correctly.

3) Check that the time and
calendar is set correctly.

4) Check if the dot display is
alternating between dot
display and “BAT.”

D201/D207)/“BT” (D202/D208) display. If so, then it
is time to change the battery.
➔ Consult various other warning functions

for

counteraction needed.

5) Check that the dot display is not alternating
between dot display and “ERR”. If so then it
indicates that there has been unusual air
pressure detected.

➔ Consult various other warning functions

for

counteraction needed

6) Check that the dot display is not alternating
between dot display and “CHEK” (D201/D207)
/“ERR” (D202/D208) display. If so, then you
should check the water sensor.

➔ Consult various other warning functions

for

counteraction needed

7) Confirm the alarm sound by operating the alarm
monitor.

• Change to the alarm mode by pressing 

M button.

• Alarm monitor is activated while pressing A

button. At the same time the alarm will be switched
ON/OFF.

3. Points to notice while diving

a. There are times when the alarm

sound is not easily heard: when
underwater and in the outside
environment.

b. Accurate water temperature is most likely to

indicate after 1 to 3 minutes from the start of your
dive.

c. When various warning functions are operating,

please heed the warning.

d. Be careful not to knock the watch against hard

objects like diving equipment or rocks, etc.

4. What to do after diving

a. Wash and rinse off any sea water, mud, sand,

and such present on the watch with fresh water.
Then dry any moisture completely, with a dry
cloth, etc.

b. Treat the sensor carefully. Do not remove the

cover or use sharp objects to clean dirt or dust
from it. If any dirt gets into the sensor, wash it
with clean water; if that doesn’t remove the dirt,
please take the watch to the nearest Citizen

Service Centre.
c. Do not expose the watch to chemicals.
d. For information about basic care for this watch,

please look at T. [for long usage].

E. Various warning functions

This watch has 5 warning functions to help you
avoid any trouble or danger while diving.

Use these warning functions, as much as
possible, as safety guidelines for diving. The
level of danger is often complex depending on
your body condition or diving situation, etc.
Even if there is no warning, it may not mean
there is no danger.

F. Name of each part