MARES CXR-I : How-To Guide : Page 5

CXR-I

Dive

Comput

er

1.6.

BUTTON

OPERATION

CXR-I has four

buttons.

These

buttons all

o

w

you to

access menus

and

change settings

while

in

surface

mode. During the dive

the

y

switch

displays,

call up the

compass

or

the

map function, and allow to display

further

information

on the

computer screen. The

function of each button is identified by a set of

letters

or an icon

placed

just above the

butt

on

itself. In

certain circumstances,

for

ins

t

anc

e

when

erasing

a set

bearing

in the

digit

al

compass

or when calling up the gas

switch

function during a

multigas

dive, a button

c

an

perform

two

tasks, depending

on

whether

it

is

pressed

and

released

or

pressed

and held

f

or

one

sec

ond.

In such

case, there

will be two

groups of

letters

or icons above a

button:

the left

one

corresponds

to the

press-and-release action,

the right one to the

press-and-hold action.

From

the home display you have the

f

ollowing

possible operations (press/press

and hold)

f

or

the

buttons

from left to right (Fig. 1):

1.7.

IN CASE OF EMERGENCY

(ICE)

-

Place

CXR-I at about 15 cm

/

6

inches

from

the tank

module

as shown in Figure

5.

Push

SELECT

and wait until the

pr

ogr

es

s

bar

advances

to the end.

Y

ou

will

either

see

the

message

PAIRING

SUCCESSFUL

or

PAIRING NOT SUCCESSFUL

.

In the

fir

s

t

case

you have

suc

c

es

sfull

y

es

t

ablished

a

connection,

in the

second

you need

t

o

repeat

the

operation,

but you must turn

off

the valve and

depressurize

the

first

s

t

age

completely,

then wait 1 minute

bef

or

e

attempting

again.

CXR-I allows you to

enter information

about

y

ourself,

such as

name, contact

inf

ormation,

emergency number, insurance

policies

and

allergies.

This

information

is

entered

via

the

PC

software

Dive

Organizer.

Alternatively,

it

can also be

entered

via the

Div

er

s

’

Diary Mac

software.

The

first

two lines of the ICE

are

displayed

in the home

display

.

-

1.8.

MOUNTING AND

P

AIRING

OF THE TANK MODULE

(OPTIONAL)

NOT

E

-

When diving with more than one

gas

mixture, tanks

G1

through

G5

must be

set to

increasing

oxygen levels.

Ref

er

to

section

11 for more

information on

multigas diving.

A

tank

module

can only be

paired

to

one

channel

on one CXR-I. If you pair

the

same

tank

module

to a

second channel

on the

same

CXR-I or to a

sec

ond

CXR-

I, the

first

one will be

er

ased.

CXR-I

f

eatur

es

an exclusive

two-way

communication technology through

which

it

can

communicate

with up to 5 tank

modul

es

regarding

tank

pressure

and gas

consumption

information

via

patented

int

erf

er

enc

e-fr

ee

communication.

Each tank

module needs

t

o

be

mounted

on a high

pressure

port of a

fir

s

t

stage

r

egulator

.

In

order

for CXR-I to display tank

pr

es

sure

and gas

consumption information,

you

mus

t

first establish

a

channel

of

communication

between

the tank

module

and CXR-I.

This

is called pairing. This

operation needs

to

be

performed

only once and

ensures

a

permanent

and

interference-free

link

between

the

two

de

vic

es.

-

PRE/POST:

enters

PRE dive

mode/ent

er

s

POST

DIVE

mode (only if

there

is

r

emaining

desaturation

in the

computed

tissues);

LOG/PLAN:

enters

the

logbook/enters

div

e

planner mode;

GAS/GF:

enters

oxygen and

helium

setting

menu/displays gradient

factor

settings

t

able;

MENU/BT: goes to main

menu/s

t

arts

bluetooth connection.

After a

successful

pairing of

G1

to

CXR-I,

the

home and the

pre-dive

display will

sho

w

the tank

pressure

in

either

bar or psi. If

t

ank

G1

has not been

paired,

CXR-I will show

an

empty field

instead

of a

pressure

value. If G1

has been

paired

but CXR-I is not

receiving any

signal, it will show

- - - instead

of a

pr

es

sure

v

alue.

-

NOTE

To

perform

the pairing

operation,

the

t

ank

module must

be

pressurized

to at

l

eas

t

15bar/220psi.

Hence it

must

be

mount

ed

on

a

first stage regulator,

which is

itself

mounted

on a full

scuba

tank and the

v

al

v

e

opened.

NOT

E

During a dive, icons are used to define

the

button function.

From

left to right you will

see

(Fig. 2):

-

The Mares tank

module

has a

range of

appr

o

ximat

el

y

1.5m/5ft.

If a tank

module battery

is weak,

CXR-I

alerts

you with a

screen message

referencing

the

channel designation

assigned

to the tank

module

in

ques

tion.

During a dive, you can ask CXR-I

to

display the

battery status

of the

t

ank

module.

More

information

about this

in

section

8.5.6 and

9.

-

enter compass

mode/ent

er

underwater menu

switch to

graphic display/call up

list of

s

t

ops

change

field in lower

right

corner/initiate

gas

switch

change

field in top right

c

orner/

call up

tissue saturation gr

aph.

/

:

To

mount

the tank

module

on the

first

s

t

age

regulator, first

r

emo

v

e

the high

pressure port

plug, then

screw

in the tank

module

gently by

hand until you feel a

minimum

of

r

esis

t

ance,

then use a 19mm

wrench

to

tighten

it (Fig. 3).

/

:

-

/

:

/

:

NOT

E

Refer to the

dedicated

tank

module manual

f

or

information

on how to

replace

the

battery in

the tank

modul

e.

The dive display is

described

in more detail

in

section 9.

Other icons that might

appear

during a dive

ar

e:

AGF:

allows you to switch

between

the

main

set of GF and the

alternate

set

-

Do not force the tank

module

whil

e

holding it by the

plastic

c

ap.

Do not

o

v

ert

orque

while using

the

wrench:

the o-ring seal is

assured as

soon as you feel the

first resistance. The

only

reason

for using a

wrench

to

tight

en

a bit more is to

pr

e

v

ent

the tank

modul

e

from

unscrewing

itself over

time.

-

NOTE

-

Y

ou

do

NOT

need to

repeat

the

pairing

procedure

after a

battery replacement in

the tank

modul

e.

:

calls up deco

summary

t

abl

e.

allows to set a

bearing (press) or

erase

a set

bearing (press

and

hold)

(COMPASS)

makes stopwatch appear

(COMPASS)

makes stopwatch disappear

(COMPASS)

restarts stopwatch

(COMPASS

and

DIVE,

only if

stopwatch

on

scr

een)

exit from predive

mode

return

to

standard

display (COMPASS,

TISSUE GRAPH,

MAP,

GAS

TABLE).

-

Y

ou

do

NOT

need to

repeat

the

pairing

procedure

if the

battery

in CXR-I

is

compl

et

el

y

empty.

Y

ou

do

NOT

need to

repeat

the

pairing

procedure

after

upgrading

the

firmwar

e

in your

CXR-I

.

:

The Mares tank

module communicates

via

radio frequency

with CXR-I. For

bes

t

transmission,

we

recommend positioning

the

tank

module

as

described

in Figure

4.

To pair the tank

module

with the

CXR-I,

proceed

as

f

ollo

ws:

-

:

-

Open the tank valve to

pressurize

the

t

ank

module.

You

now have two

minutes

t

o

perform all

steps

listed

bel

o

w;

Go into SET

DIVE/GAS

INTEGRA

TION/P

AIR

DEVICES

Choose the

channel

that you wish to

as

sign

to

the device (if this is your only tank

modul

e

for single gas diving,

choose

G1.

G2

thr

ough

G5

are used for

multigas

dives. Mor

e

information

on this in

section 11);

1.9.

TURNING OFF

CXR-I

turns

off

aut

omatic

all

y

after 3

minut

es

without

operation

when in

surface

mode

and

after 10

minutes

without

operation

when

in

pre-dive

mode.

From

the main

menu,

y

ou

can

also turn it off

manuall

y

by

selecting the

BUTTON LOCK

ic

on.

:

-

:

-

6