SCUBAPRO-UWATEC Chromis User Manual

Chromis

User Manual

CHROMIS USER MANUAL

CHROMIS DIVING COMPUTER - DESIGNED BY DIVING ENGINEERS

Welcome to SCUBAPRO dive computers and thank you for purchasing Chromis. You are now the owner of an extraordinary partner for your dives. This manual provides you easy access to SCUBAPRO state of the art technology and Chromis key features and functions. Should you wish to know more about SCUBAPRO diving equipment, please visit our website www.scubapro.com.

WARNING

• Chromis has a depth rating of 120m/394ft.

• If 120m is exceeded, -- will be shown in the depth  eld and decompression algorithm does not calculate correctly.

• Diving at oxygen partial pressures higher than 1.6bar (corresponding to a depth of 67m/220ft when breathing compressed air) is extremely dangerous and could lead to serious injury or death.

Chromis dive instrument is a personal protective equipment in compliance with the essential safety requirements of the European Union directive 89/686/EEC. RINA SpA, Via Corsica 12, I-16128 Genoa, notified body no. 0474, have certified the conformity with the European Standard EN 13319:2000.

EN13319:2000 Diving accessories -Depth gauges and combined depth and time measuring devices -Functional and safety requirements, test methods. Any information on decompression obligation displayed by equipment covered by this standard is explicitly excluded from its scope.

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CHROMIS USER MANUAL

TABLE OF CONTENTS

1. Introduction to Chromis ....................................................................................... 6

1.1 Battery .................................................................................................... 6

2. Operation modes .................................................................................................. 7

3. Chromis as a watch .............................................................................................. 8

3.1 Clock setting functions ............................................................................ 9

3.1.1 Setting the alarm clock ........................................................... 10

3.1.2 Setting the UTC ..................................................................... 10

3.1.3 Setting the time and 24h or AM/PM mode ............................. 10

3.1.4 Set dual time mode ................................................................ 10

3.1.5 Setting the date .................................................................... 11

3.1.6 Setting the sound off

(silent mode) .......................................................................... 11

3.1.7 Checking the battery status ................................................... 12

3.2 Menus and functions at the surface ....................................................... 13

3.2.1 Checking the Altitude ............................................................. 14

3.2.2 Reading the Logbook ............................................................. 15

3.2.3 SCUBA log’s .......................................................................... 15

3.2.4 APNEA log ............................................................................. 16

3.2.5 Surface exercises ................................................................... 16

3.2.6 Planning a dive ....................................................................... 17

3.2.7 Using the Stopwatch .............................................................. 18

4. Chromis as a dive computer .............................................................................. 19

4.1 Settings at the dive mode ...................................................................... 19

4.1.1 Dive mode at surface ............................................................. 19

4.1.2 Surface interval counter .......................................................... 20

4.2 Gas settings .......................................................................................... 21

4.2.1 Set gas .................................................................................. 21

4.2.2 Nitrox reset time ..................................................................... 22

4.2.3 Desaturation reset .................................................................. 22

4.3 SCUBA settings .................................................................................... 23

4.3.1 Maximum dive depth alarm ................................................... 23

4.3.2 Maximum dive time alarm ...................................................... 23

4.3.3 Setting the Micro Bubble level ................................................ 23

4.3.4 Setting the user preferred units .............................................. 24

4.3.5 Selecting the salt (ocean) or fresh water ................................ 24

4.4 APNEA Settings .................................................................................... 24

4.4.1 Setting the dual depth alarm .................................................. 25

4.4.2 Setting the depth incremental alarm ....................................... 25

4.4.3 Setting the dive time interval alarm ......................................... 25

4.4.4 Setting the surface interval alarm ............................................ 26

4.4.5 Setting the ascent speed alarm .............................................. 26

4.5 SWIM mode .......................................................................................... 26

4.6 Algorithm selection ................................................................................ 27

4.7 Diving with Chromis ............................................................................... 28

CHROMIS USER MANUAL

4.7.1 Display information ................................................................................ 28

4.7.1.1 Display conﬁ guration during the dive ..........................29

4.7.1.2 Stop timer ...................................................................29

4.7.1.3 Setting bookmarks ......................................................30

4.7.1.4 Safety stop timer .........................................................30

4.7.1.5 Activating the backlight ...............................................30

4.7.1.6 Diving with MB levels ..................................................30

4.7.1.7 PDI Stops ....................................................................31

4.7.2 No-dive warning after a dive ................................................... 31

4.7.3 SOS ....................................................................................... 32

4.7.3.1 Desaturation reset .......................................................32

4.7.4 Diving with Nitrox ................................................................... 33

4.7.5 Altitude diving ........................................................................ 33

4.7.5.1 Altitude classes, altitude warning and no-ﬂ y time

after a dive ..................................................................33

4.7.5.2 Altitude and the decompression algorithm ...................35

4.7.5.3 Prohibited altitude .......................................................35

4.7.5.4 Decompression dives in mountain lakes ......................36

4.7.6 Warnings and alarms ............................................................. 36

4.7.6.1 CNS O2 = 75% ............................................................36

4.7.6.2 No-Stop time = 2 minutes ...........................................36

4.7.6.3 Entering decompression ..............................................36

4.7.6.4 Ascent rate ..................................................................37

4.7.6.5 MOD/ppO2 .................................................................38

4.7.6.6 CNS O2 = 100% ..........................................................38

4.7.6.7 Missed decompression stop........................................38

4.7.6.8 Low battery .................................................................39

4.8 GAUGE mode ....................................................................................... 39

4.9 APNEA mode ........................................................................................ 40

4.10 SWIM mode .......................................................................................... 41

5. Chromis PC interface ......................................................................................... 41

5.1 Cradle – accessory ................................................................................ 41

5.2 Introduction to SCUBAPRO LogTRAK ................................................... 42

5.2.1 Download dive proﬁ les ........................................................... 42

5.2.2 Change warnings/settings of the Chromis and reading the

computer information ............................................................. 43

6. Taking care of Chromis ...................................................................................... 43

6.1 Technical information ............................................................................. 43

6.2 Maintenance ......................................................................................... 43

6.3 Replacing the battery in Chromis ........................................................... 44

6.4 Warranty ................................................................................................ 44

7. Glossary ............................................................................................................... 45

8. Index ..................................................................................................................... 47

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CHROMIS USER MANUAL

1. INTRODUCTION TO CHROMIS

Your Chromis User Manual is divided into ﬁ ve main chapters.

1 Introduction to Chromis. This chapter provides an overview of the Chromis computer and describes its operating modes and functions when on the surface.

2 Chromis as a watch. This section describes Chromis when it is used as a watch.

3 Chromis as a dive computer. This chapter describes all settings and functions of Chromis as a dive computer and takes you underwater with Chromis. It’s about everything Chromis can and will do to enhance your safety and fun underwater.

4 Chromis PC interface. This chapter is about linking Chromis to your PC/MAC. It describes how to change settings, to download and manage your logbook.

5 Taking care of Chromis. This chapter describes how you should take care of Chromis after underwater adventures and also summarizes the main technical information of this instrument.

Chromis is a technologically-advanced instrument that can accompany you during your underwater adventures while providing you with accurate depth, time and decompression information. On the surface its size makes it your ideal everyday companion. With features such as wake-up alarm, dual time, stop watch, and altimeter, Chromis can tackle almost every possible task.

The buttons allow operating functions, access menus and setting changes while on the surface. During the dive they set bookmarks, show further information on the computer screen and activate the backlight.

It is time to dive into the details now. We hope you will enjoy getting to know your new computer and we wish you many happy dives with Chromis.

1.1 Battery

Chromis uses a CR2430 battery type which is available at your Authorized SCUBAPRO dealer. Chromis will alert you when the battery is approaching a critical value by displaying the battery symbol. A steady symbol means that the battery is low, with some reserve left. In dive mode the backlight cannot be activated. If the symbol blinks the battery level is dangerously low and backlight and alarm tones are not activated; diving is not recommended before replacing the battery.

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CHROMIS USER MANUAL

WARNING

Starting a dive when the battery symbol is blinking can cause the computer to fail during the dive! Replace the battery before any diving activity if the blinking battery symbol appears. When the ‘do not dive symbol’ appears with the battery symbol Chromis can not be used for diving before a fresh battery is replaced.

Please refer to chapter Checking the battery status for details how to manually

trigger the battery level check.

WARNING

Replacing the battery requires opening the electronic compartment of Chromis. You must take extreme care when performing the battery change operation in order to ensure the water tightness of the watch. Failing to do so will cause the watch to  ood during your next dive and permanently ruin it. Damage to Chromis due to an improper battery replacement is not covered by warranty. We strongly recommend having the battery change operation be carried out by your SCUBAPRO dive retailer.

See chapter Replacing the battery in this manual for information on how to replace the battery.

2. OPERATION MODES

The reference point for any description of Chromis as a watch is the main time of day display. This is the display in which the current time is shown on the middle row. The upper row shows the date and the bottom row indicates the weekday. The example below shows Saturday, 23th of November and the time is one second past 10 o’clock. If dual time is activated, this display shows dual time on the top row, the main time on the middle row and the date on the bottom row.

The different modes are shown on the right side of the computer and the current functioning mode is indicated with a dot. Each mode may have sub functions and menus. The modes are grouped and described in this manual in three chapters:

1. Chromis as a watch

2. Menus and functions at the surface

3. Chromis as a dive computer The following chart describes the main menu structure.

CHROMIS USER MANUAL

3. CHROMIS AS A WATCH

Chromis is more than just a watch. It features:

• wake-up warning function

• dual time

• stopwatch with lap time and 72 hours

run time

• altimeter for tracking your excursions to

the mountains.

• A thermometer for current weather

conditions.



NOTE: Thermometer reading - when

worn at the wrist against the skin the reading is inﬂ uenced by body heat.

The function of the buttons on the surface is summarized in the table below and explained in detail on the following sections.

TIME & DATE

Altitude meter

Logbook

pages

SEL

-/DOWN

+/UP

ESC

SEL

Planner

pages

Dive settings

& menus

Clock settings

& menus

STOP watch

function

LOG

Planner

STOP watch

DIVE mode

SET

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CHROMIS USER MANUAL

Light button, Top Left: Short press = backlight

+/up button, Top Right: +/up = adds numerical values, scrolls up in

the menus

-/down button, Bottom Right: -/down = subtracts numerical values, scrolls down in the menus

SEL/ESC button, Bottom Left: Short press = select,

Long press = escape

(return to previous menu) or cancel the setting

3.1 Clock setting functions

By pressing once the +/UP button from the main time and date display and selecting “SET” menu by pressing SEL button you will get into clock settings (See chart below). The different sub menu functions are described in later chapters.

SET

SET alarm

clock

SET UTC

SET UTC2

DUAL TIME

SET date

SET Sound

off

CHECK

battery state

SET time and

24h or AM/PM

mode

-/DOWN

+/UP

ESC

SEL

CHROMIS USER MANUAL

3.1.1 Setting the alarm clock

By pressing the SEL button the alarm status will start blinking and can be selected to either on or off by pressing + or - buttons. By pressing the SEL button the hours of the alarm will start blinking. You can scroll the hours setting by pressing + or – buttons. By pressing the SEL button the minutes will start blinking and by pressing + or – buttons you can scroll them. Pressing the SEL button will conﬁ rm the settings.



NOTE: The sound off setting does not

affect the alarm clock. However, the intelligent battery stretching algorithm disables all warning tones when there are less than 2 dots left in the battery status display or when the battery symbol is blinking in other displays.

3.1.2 Setting the UTC

The UTC setting will change the shown time compared to Greenwich 0-Meridian. This feature is practical when travelling through different time zones.

By pressing SEL the hours will start blinking. You may edit them with + or – buttons in a range of +14h..-13h. By pressing SEL the minutes will start blinking and you may edit them with + or – buttons in 15 minute steps. The UTC setting will be conﬁ rmed by pressing the SEL button.

3.1.3 Setting the time and 24h or AM/PM mode

In the display above the current time is shown on the display. By pressing the SEL button the 24h or 12h setting on the top row starts blinking. You may change the setting by pressing + or – buttons. By pressing the SEL button the time setting will be activated: hours start blinking and seconds will turn to 00. You may change the hours with + or – buttons. By pressing the SEL button the selection will change to minutes and can be edited the new time setting will be conﬁ rmed by pressing the SEL button.



NOTE: seconds cannot be edited;

they always start counting from 0.

3.1.4 Set dual time mode

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CHROMIS USER MANUAL

Dual time uses the same “base time” as the main clock. Therefore, adjusting the time as described in chapter Setting the time and 24h or AM/PM mode, will also inﬂ uence the dual time. The Dual time zone selection will deﬁ ne the difference to the main clock time. When the time zone selection is OFF, then the Dual time is disabled. When pressing the SEL button the UTC2 time hours start blinking. You may change the setting by pressing + or – buttons in a range of +14h..-13h or off. By pressing the SEL button, the minutes will start blinking and you may edit them using + or – buttons in 15 minute intervals. The UTC2 setting will be conﬁ rmed by pressing the SEL button.

3.1.5 Setting the date

When in the date setting, press the SEL button and the blinking digits can be changed by pressing + or – buttons (in 24h mode the ﬁ rst digit are days, in 12h mode the month is ﬁ rst). By pressing the SEL button the next digits start blinking and they may then be edited by pressing + or – button. Again, by pressing the SEL buttons, the year, after the dot, starts blinking. The date will be conﬁ rmed by pressing the SEL button.

3.1.6 Setting the sound off (silent mode)

ON/OFF/ALR (with ALR: alarm and attention sound during diving are enabled)

By pressing the SEL button the current setting will start blinking at the middle of the display. By pressing + or – buttons you may select between the normal mode, where alarm and button tones are on, or the silent mode, where all tones are off, or alarm mode where only alarm tones are on (ALR). The sound off selection is protected with a code.

When sound off has been selected the ﬁ rst digit starts blinking. By pressing + or – buttons the number can be changed and by pressing the SEL button the number will be stored.

The unlock code for sound off is: 313.

CHROMIS USER MANUAL

WARNING

The Sound Off selection will disable all audible dive mode alarms and warnings. This is potentially dangerous.



NOTE: the only exception to the silent

mode is the alarm clock, it will beep when activated, even if the main setting is: sound off.

3.1.7 Checking the battery status

The battery status menu shows how much energy is left in the CR2430 battery. A fresh battery shows 5 dots.

Chromis is periodically measuring the battery status and you can manually trigger a measurement by pressing the SEL button in this menu.

The intelligent battery algorithm will limit some functions towards the end of the battery lifetime. See the table below for the status and functions.

Indicator in battery

status display

At other displays Battery status Function limitations

00000 Fresh battery none

0000_ Battery ok for diving none

000__ Battery ok for diving none

00___ Battery symbol Weak battery, change

to fresh

Backlight not

operating

0____ Blinking battery

symbol, no dive

symbol

Completely used

battery, change to

fresh

Alarms and

Backlight not

operating, diving

not recommended

None, change Blinking battery

symbol, no dive

symbol

Completely used battery, change to fresh,

watch may make a reset any time and

remain off

Diving mode not

allowed, only

watch is active

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CHROMIS USER MANUAL



NOTE: The battery capacity and voltage at the end of the lifetime may vary between battery manufacturers. Generally operation at low temperatures decreases the battery capacity. Therefore, when the battery indicator drops below 3 dots, change the battery to a fresh one before making any new dives.

3.2 Menus and functions at the surface

By simply pressing buttons + or - from the time of day display you can scroll through

the various menus in Chromis. The diagram below shows the sequence of the menus. Note that when you ﬁ rst reach a menu, you are not yet inside it, you must press the SEL button to enter the actual menu. When the actual menu is selected, the indicator starts blinking.

CHROMIS USER MANUAL

TIME & DATE

Altitude meter

Logbook

pages

SEL

-/DOWN

+/UP

ESC

SEL

Planner

pages

Dive settings

& menus

Clock settings

& menus

STOP watch

function

LOG

Planner

STOP watch

DIVE mode

SET

3.2.1 Checking the Altitude

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CHROMIS USER MANUAL

In the altitude menu the current altitude is calculated from the barometric pressure. The current altitude class is shown on the top row. The current temperature is shown on the bottom row.



NOTE: barometric pressure is a variable, changing with weather and atmospheric

pressure at that particular elevation. The Dive algorithm uses Altitude Classes which are directly derived from the barometric pressure. Altitude is counted from the current barometric pressure and it is therefore a relative value.

The altitude can be adjusted when current elevation is known by pressing the SEL button. The altitude value will start blinking. By pressing + or – buttons the value can be adjusted in 10m/50feet increments. Adjusting the altitude elevation has no effect on the Altitude Class.



NOTE: Different combinations m&˚C,

Ft&˚C, m&˚F or Ft&˚F can be selected from the Dive mode menu: Units.

3.2.2 Reading the Logbook

You can check the main information about your dives in the Logbook by pressing SEL when in the log menu. The ﬁ rst page shown is the dive history.

On the display above, the Chromis has 5 dives and total of 4 hours of diving in the Logbook, with the deepest dive at

19.0 meters and a longest dive time of 58 minutes.

3.2.3 SCUBA log’s

By pressing + or – buttons you can scroll the dives in memory. In SCUBA mode there is a main page showing depth, dive time, dive date and used oxygen content.



NOTE: If the dive has been done in

GAUGE or APNEA modes or exercises at the surface have been logged, the main page has GA, AP or SE instead of O2% on the top row.

By pressing SEL you will select the dive and get to the sub display which shows the following information in SCUBA mode: Minimum temperature, dive start time and altitude level. May also indicate the SOS mode if the last dive was terminated without correct decompression stops.

The following page shows the dive endtime and calculated average depth.

+ 32 hidden pages

SCUBAPRO-UWATEC Chromis User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual