Shearwater Perdix Manual de usuario

Operating Instructions

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Shearwater Perdix Operating Instructions

Table of Contents

Introduction��5

Feature List��5

Installing Straps or Bungee Cord ��6

Straps ��6

Bungee Cord��7

Turning On ��8

Auto-On ��8

Buttons��9

The Main Screen��10

Color Coding��10

The Top Row��11

The Center Row��13

Center Row Conguration��14

The Bottom Row ��15

Info Screens ��17

Compass��21

Viewing the compass ��21

Marking a Heading��21

Menus ��22

Open Circuit Menu Structure ��23

Closed Circuit (Int� PPO2) Menu Structure��24

Simple Example Dive ��25

Gauge Mode��26

Stopwatch ��26

Resettable Average Depth��26

Decompression and Gradient Factors ��27

Menu Reference��28

Turn Off��28

Switch Setpoint ��28

Select Gas ��29

Radio Station Gases ��29

Select Gas Menu Styles��30

Switch to OC/CC��31

Dive Setup ��31

Low Setpoint ��31

High Setpoint��32

Shearwater Perdix Operating Instructions

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Dene Gas ��33

Dive Planner��35

Conservatism ��37

NDL Display ��38

Brightness ��40

Dive Log Menu��41

Display Log ��41

Upload Log��41

Edit Log Number ��41

System Setup ��42

Mode Setup��43

Deco Setup ��45

OC Gases ��45

CC Gases ��45

Auto SP (Setpoint) Switch��46

Compass Setup��49

Calibrate��50

System Setup��51

Advanced Conguration 1��52

Advanced Conguration 2��53

Firmware Upload and Dive Log Download��54

Changing the Battery ��55

Battery Types��56

Behavior on Battery Change��57

Error Displays��59

Troubleshooting ��61

Storage and Maintenance��61

Servicing ��61

Specications ��62

FCC Warning��63

Industry Canada Warning ��63

Contact ��64

Table of Contents (continued)

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Shearwater Perdix Operating Instructions

WARNING

This computer has bugs� Although we haven’t found them all yet, they are there� It is

certain that there are things that this computer does that either we didn’t think about,

or planned for it to do something different� Never risk your life on only one source of

information� Use a second computer or tables� If you choose to make riskier dives,

obtain the proper training and work up to them slowly to gain experience�

This computer will fail� It is not whether it will fail but when it will fail� Do not depend on

it� Always have a plan on how to handle failures� Automatic systems are no substitute

for knowledge and training�

No technology will keep you alive� Knowledge, skill, and practiced procedures are your

best defense (Except for not doing the dive, of course)�

DANGER

This computer is capable of calculating deco stop requirements� These calculations are

at best a guess of the real physiological decompression requirements� Dives requiring

staged decompression are substantially more risky than dives that stay well within no-

stop limits�

Diving with rebreathers and/or diving mixed gases and/or performing

staged decompression dives and/or diving in overhead environments

greatly increases the risk of scuba diving�

You really are risking your life with this activity�

Shearwater Perdix Operating Instructions

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Introduction

The Shearwater Perdix is an advanced technical

diving computer for open and closed circuit divers�

Although we strive to make the Perdix easy enough

to use without reading the manual, please take

some time to read this manual to get the best

performance from your new computer� Diving

involves risk and education is your best tool for

managing this risk�

Feature List

• Technical open and closed circuit dive computer�

• Bühlmann decompression model with gradient factors conservatism

• Optional VPM-B decompression model

• Imperial and metric displays

• Depth and time display

• A menu system that adapts to diving status

• Automatic turn off after 30 minutes on the surface

• Depth sensor rated to 450 feet/140 meters of seawater

• Dive Planner

• Any combination of oxygen, nitrogen, and helium (Air, Nitrox, Trimix)

• Open and closed circuit, switchable during a dive

• 5 CC and 5 OC gases

• Gases can be changed and added during a dive

• CNS tracking

• No lockout from violating deco stops

• Automatic PPO2 set-point switching (congurable)

• Two CC PPO2 set-points, each of which can be set between �4 and 1�5

• Flexible user replaceable battery� Almost any ‘AA’ type

• 1000 hour dive log memory

• Tilt compensated digital compass with markable headings

• Log downloads and rmware upgrades using Bluetooth

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Shearwater Perdix Operating Instructions

Installing Straps or Bungee Cord

The Perdix includes mounting points for either two elastic straps or two bungee cords�

Both types are included in the box�

Straps

Install the elastic straps as shown in the image below� The buckles feature a locking

mechanism to prevent them from inadvertently loosening� Press the tab to allow the

buckle to slide freely on the straps�

Strap width is 3/4” (19 mm)�

Install the straps and buckles as shown

Shearwater Perdix Operating Instructions

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Bungee Cord

Bungee cord can be installed in many ways based on your preference� Two examples

are shown�

The holes are sized for 3/16” (4�8 mm) diameter cord�

Allergy Alert! The supplied elastic surgical tubing contains LATEX�

Tip: Use two pieces of cord

When using the bungee cord, always create two independent loops so

that a single break does not result in a lost dive computer� If using a single

continuous piece of cord, isolate the sides with a knot�

A simple overhand knot (at left)

works well to secure the bungee

cord�

However, this knot can pull

through the mounting holes

under very high load�

We nd that the knot at right

works well�

This knot has the nice feature

of creating loops that stay wide

open while putting the Perdix on

your wrist�

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Shearwater Perdix Operating Instructions

Turning On

To turn the Perdix on, press both the

MENU (left) and the SELECT (right)

buttons at the same time�

Auto-On

The Perdix will automatically turn-on when submerged underwater� This is based on

pressure increase and not on the presence of water�

Auto-On Details

The Perdix turns on automatically when the absolute pressure is greater than 1100

millibar (mbar)� For reference, normal sea level pressure is 1013 mbar and 1 mbar of

pressure corresponds to approximately 1 cm (0�4") of water�

So the Perdix will automatically turn-on when about 0�9 m (3 ft) underwater when at

sea level� If at higher altitude, then the Perdix auto-on will occur at a deeper depth� For

example, when at 2000 m (6500 ft) altitude the atmospheric pressure is only about 800

mbar� Therefore, at this altitude the Perdix must be submerged underwater by 300 mbar

to reach an absolute pressure of 1100 mbar� This means the auto-on occurs at about 3

m (10 ft) underwater when at an altitude of 2000 m�

Do NOT rely on the auto-on feature

This feature is supplied as a backup for when you forget to turn on your Perdix�

Shearwater recommends turning on manually before each dive to conrm proper

operation and to double check battery status and setup�

Shearwater Perdix Operating Instructions

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Buttons

Two piezo-electric buttons are used to change settings and view menus�

Except for turning the Perdix on, all operations are simple single button presses�

Don’t worry about remembering all the button rules below� Button hints

make using the Perdix easy�

MENU button (Left)

• From main screen: brings up the menu�

• In a menu: moves to the next menu item�

• Editing a setting: changes the setting’s value�

SELECT button (Right)

• From main screen: steps through information screens�

• In a menu: performs command or starts editing�

• Editing a setting: saves the setting’s value�

BOTH BUTTONS

• When Perdix is off: pressing MENU and SELECT at the same time will turn

the Perdix on�

• No other operation requires pressing both buttons at the same time�

When in a menu, button hints label each button�

For example, the hints to the right tell us:

use MENU to change the brightness value�

use SELECT to save the current value�

Button Hints



 









SELECT (right)

button

MENU (left)

button

MENU hint SELECT hint

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Shearwater Perdix Operating Instructions

The Main Screen

The main screen shows the most important information needed for technical diving�











 







  

Color Coding

Color coding of text draws attention to problems or unsafe

situations�

White text indicates normal conditions�

YELLOW is used for warnings that are not immediately

dangerous but should be addressed�

FLASHING RED is used for critical alerts that could be life

threatening if not immediately addressed�

The warning or critical alert states can be determined

without the use of color�

Warnings display on a solid inverted background�

Critical alerts ash between inverted and normal text.

Color Blind Users







Top Row

Depth, Time &

Deco Stops

Center Row

PPO2

Bottom Row

Mode, Gas &

Deco Info

Warning - doesn't ash

Critical alert - ashes

Flashes

Sample warning -

a better gas is available

Sample critical alert -

continuing to breathe this

gas could be fatal

Flashes

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