Aqua Lung i550 Owner's Manual

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i550

Dive Computer Owner's Manual

Doc. 12-7840-r03 (3/28/16)

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Summary of Contents for Aqua Lung i550

Page 2: Notices
The program within the i550 simulates the absorption of inert gases into the body by using a mathematical model. This model is merely a way to apply a limited set of data to a large range of experiences. The i550 dive computer model is based upon the latest research and experi- ments in decompression theory.
Page 3: Warnings
• If you exceed certain limits, the i550 will not be able to help you get safely back to the surface. These situations exceed tested limits and can result in loss of some functions for 24 hours after the dive in which a violation occurred.
Page 4: Table Of Contents
BATTERY REPLACEMENT 4. dEEP STOP ALTITUDE SENSING AND ADJUSTMENT 5. SS (SAFETY STOP) QUICK DISCONNECT HOSE (OPTIONAL) 6. CF (Conservative Factor) 7. LIGHt (BACKLIGHT) DURATION 8. SR (SAMPLE RATE) SET TIME © Aqua Lung International, Inc. (2016) Doc. 12-7840-r03 (3/28/16)
Page 5 TECHNICAL DATA NO DECOMPRESSION TIME LIMITS OXYGEN EXPOSURE LIMITS ALTITUDE LEVELS SPECIFICATIONS ABBREVIATIONS/TERMS © Aqua Lung International, Inc. (2016) Doc. 12-7840-r03 (3/28/16)
Page 7: Basics
Welcome to your new i550. The i550 is an easy to use dive computer utilizing a two button interface. Divers may choose between either Dive or Gauge Mode. Though the i550 is easy to use, you will get the most out of your new i550 if you take some time to familiarize yourself with its displays and operation.
Page 8: Display Icons
Time To Surface Safety Stop Temperature Gas Time Remaining Dive Time or Dive # Decompression Stop Triggered Surface Time Descend, Ascend, or Stop Gas # Low Battery Value is Pressure Value is Maximum © Aqua Lung International, Inc. (2016) Doc. 12-7840-r03 (3/28/16)
Page 9: Buttons
GETTING STARTED BUTTONS The i550 utilizes 2 control buttons called the ADV (Advance) and SEL (Select) buttons. They allow you to select mode options and access specific information. They are also used to enter settings, activate the backlight, and acknowledge the audible alarm. Throughout this manual they will be referred to as the ADV and SEL buttons.
Page 10: Button Functions
BUTTON FUNCTIONS ACTION BUTTON FUNCTION Press Any Button • to activate the i550 • to access Alt screens • to advance or step through menus • to toggle or change setpoints • to activate the backlight • to scroll quickly, changing setpoints •...
Page 12: Dtr (Dive Time Remaining)
DIVE FEATURES DTR (DIVE TIME REMAINING) The i550 constantly monitors No Decompression status and O2 Accumulation, and will display whichever time is the least amount available as DTR on the No Decompression Dive Main screen. The time being displayed will be identified by the NO DECO or O2 MIN icons.
Page 13: Asc Bar Graph
DS (DEEP STOP) When the DS selection is set to ON, it will trigger after descending deeper than 24 m (80 ft). The i550 then calcu- lates (continually updating) a Stop Depth equal to ½ the Max Depth.
Page 14: Ss (Safety Stop)
• The battery icon appears solid upon entry into Surface Mode. Alarm Level • The i550 functions continue but the backlight is disabled. • The Battery icon appears flashing. 5 seconds after entering Surface Mode the i550 will shut down. © Aqua Lung International, Inc. (2016) Doc. 12-7840-r03 (3/28/16)
Page 15: Audible Alarm
• Ascent above a Decompression Stop for more than 5 minutes. • Decompression requires a Stop Depth deeper than 18 m (60 ft) or deeper. • On the Surface during a Conditional Violation. © Aqua Lung International, Inc. (2016) Doc. 12-7840-r03 (3/28/16)
Page 17: On The Surface Before A Dive
To view i550 logs, change settings, or switch modes you must navigate through the Surf Main Menu. Enter the menu by pressing the ADV button. When you reach the end of the menu the i550 will return to the Dive Surface Main screen.
Page 18: Fly/Sat (Desat)
(hr:min), which will generally occur prior to the FLY countdown reaching 0:00 (hr:min), the SAT time is to remain on the screen as 0:00 until the FLY counter shuts the i550 off, 24 hours after the last dive. NO PREVIOUS DIVES...
Page 19: Plan
Factor was active) for DIVE, started GAUG for GAUGE dive, VIOL for a violation dive dive # next dive date next item in recorded of dive Main Menu access view dive record © Aqua Lung International, Inc. (2016) Doc. 12-7840-r03 (3/28/16)
Page 20: Set Gas
Main Menu dive. *The i550 is not compatible with Aqua Lung Transmitters. It can only monitor and record the onboard, tank 1, gas pressure. SET GAS Within this submenu you can change the three available gas mixes from air to any nitrox mix between 21 - 100 (% O ).
Page 21: Set Al (Alarms)
Set AL menu 1. AUd AL (Audible Alarms) The Audible Alarm feature allows you to set audible alarms ON or OFF. SET AUD AL ON or OFF toggle setting save setting © Aqua Lung International, Inc. (2016) Doc. 12-7840-r03 (3/28/16)
Page 22: Depth Al (Audible Alarms)
This feature allows you to set an alarm to go off at a predetermined number of N2 bar graph seg- ments. N2 AL N2 AL TRIGGERED or blank if ON # of segments flashing selected if ON to change setting save setting © Aqua Lung International, Inc. (2016) Doc. 12-7840-r03 (3/28/16)
Page 23: Dtr Al (Dive Time Remaining Alarm)
20 to 105 BAR (300 to 1500 PSI) in increments of 5 BAR (100 PSI). NOTE: The Pressure Alarm only considers the gas 1 when diving with multiple gases. PRESS AL PRESS AL TRIGGERED flashing to change flashing setting save setting © Aqua Lung International, Inc. (2016) Doc. 12-7840-r03 (3/28/16)
Page 24: Set Util (Utilities)
2. H2O ACT (Water Activation) The H2O ACT feature allows you to turn OFF water contact activation. WARNING: With H2O ACT turned OFF, you MUST remember to manually activate the i550 before any dive. SET H2O ACT ON or OFF...
Page 25: Units (Imp/Met)
SET STOP DEPTH ON or OFF 3 or 5 min (3, 4, 5; 6 m) toggle toggle advance or (10, 15; 20 ft) setting setting setting save save save setting setting setting © Aqua Lung International, Inc. (2016) Doc. 12-7840-r03 (3/28/16)
Page 26: Cf (Conservative Factor)
This setting is the duration the backlight stays on after releasing the buttons. The options are OFF, 5 sec, or 10 sec. SET LIGHT OFF, 5 sec; 10 sec advance setting save setting © Aqua Lung International, Inc. (2016) Doc. 12-7840-r03 (3/28/16)
Page 27: Sr (Sample Rate)
Download function stores much larger files for each dive. Depending on the chosen set- tings and dive durations, it is possible to see dives stored in the i550's onboard Log that have already been overwritten in the PC Download Partition. Choosing a longer Sample Rate interval will consume less memory per dive.
Page 28: Set Mode
Set Mode allows you to choose between diVE (standard recreational dive) or GAUGE modes of operation. NOTE: The i550 will be locked in Gauge mode for 24 hours after surfacing from any Gauge or Violation Dive. Otherwise, you may switch modes freely while in either Surface Mode.
Page 29: Sn (Serial Number)
DIVE SURFACE MODE SN (SERIAL NUMBER) Information displayed on the Serial Number screen should be recorded and kept with your sales receipt; it will be required in the event that your i550 requires factory service. SERIAL NUMBER revision # serial #...
Page 31: Initiating A Dive
DIVE OPERATION INITIATING A DIVE With the i550 activated, a dive will commence upon descending to 1.5 m (5 ft) for at least 5 seconds. Below is a diagram to help you navigate Dive Mode functions. NO DECOMPRESSION DIVE MAIN...
Page 32: Dive Alt 1
This screen tells you the maximum depth, current time of day, and ambient temperature. DIVE ALT 2 The ALT 2 screen displays information pertaining to nitrox; it is bypassed if the i550 is set for air. saturation 0 - 100...
Page 33: Safety Stop Main
SURFACING Upon ascending to 0.9 m (3 ft) the i550 transitions to Dive Surface mode. For the first 10 minutes after a dive the i550 will continue to display the maximum depth and elapsed dive time. Once the surface time reaches 10 min- utes the i550 will display the standard Dive Surface screen.
Page 34: Gas Switches
• If you exceed certain limits, the i550 will not be able to help you get safely back to the surface. These situations exceed tested limits and can result in loss of some functions for 24 hours after the dive in which a violation occurred.
Page 35 1.6, then a warning not to switch will display. The i550 will maintain the current gas without switching. The diver may overide the i550 and force the gas switch by pressing the SELECT button during the DO NOT SWITCH TO message.
Page 36: Decompression
DIVE OPERATION COMPLICATIONS The preceding information has described stress free casual dive operations. Your new i550 is also designed to help you to the surface in less than ideal situations. The following is a description of these. Take some time to familiarize yourself with these operations before diving your i550.
Page 37: Cv (Conditional Violation)
Stop Depth, then the full Stop icon will be on solid. > If the DV1 status is ignored, the i550 will enter DV1 Surface mode for 5 minutes upon surfacing from the dive. VIOL (Violation) and Down Arrow icon will be flashing. After 5 minutes on the surface in DV1 mode, the unit will enter VGM (Violation Gauge Mode).
Page 38: Dv 2 (Delayed Violation 2)
* The maximum functional depth {Dive Mode 100 M (330 FT), Gauge Mode 120 M (399 FT)} is the depth at which the i550 can properly per- form calculations or provide accurate display information.
Page 39: Violation Gauge Mode On The Surface
After the audible alarm is silenced, the PO will alternate with gas pressure. DURING AUDIBLE ALARM AFTER AUDIBLE ALARM alternate with UP message and arrow flashing alternate with PO © Aqua Lung International, Inc. (2016) Doc. 12-7840-r03 (3/28/16)
Page 40: Po 2 During Decompression
Stop Depth and Stop Time. The STOP icon continues to disply. When the audible alarm is silenced, the standard Decompression Dive screen is restored. % O2 SAT flashing © Aqua Lung International, Inc. (2016) Doc. 12-7840-r03 (3/28/16)
Page 41: Alarm During Decompression
• Access to Dive ALT screens is allowed during the first 10 minutes, then access to the Dive Surface Menu is allowed. SURFACE < 10 MIN, SURFACE > 10 MIN, 100% O2 SAT VGM TRIGGERED violation alternating with alternating with % O2 SAT SURF time © Aqua Lung International, Inc. (2016) Doc. 12-7840-r03 (3/28/16)
Page 43: On The Surface Before A Dive
To view i550 logs, change settings, or switch modes you must navigate through the Surf Main Menu. Enter the menu by pressing the ADV button. When you reach the end of the menu the i550 will return to the Gauge Surface Main screen.
Page 44: Initiating A Dive
GAUGE MODE INITIATING A DIVE With the i550 activated, a Gauge dive will commence upon descending to 1.5 m (5 ft) for at least 5 seconds. Be- low is a diagram to help you navigate Gauge Dive Mode functions. ALT 1...
Page 45: Dv 3 (Delayed Violation 3)
Too Deep. *The maximum functional depth {Dive Mode 100 M (330 FT), Gauge Mode 120 M (399 FT)} is the depth at which the i550 can properly per- form calculations or provide accurate display information. Refer to the Specifications in the back.
Page 47: Pc Interface
PC INTERFACE The i550 is configured with a Data Port located on the side of the module that enables it to be connected to a PC through a USB port using a special interface cable. The cable is either included or available as an optional acces- sory depending on the computer package purchased.
Page 48: Battery Replacement
• Send freight prepaid and insured using a traceable method. • Non-warranty service must be prepaid. COD is not accepted. • Additional information is available on the Aqua Lung web site www.AquaLung.com or on the local Aqua Lung web site that serves your global region.
Page 49: Altitude Sensing And Adjustment
• No adjustments are made during any time that the Wet Contacts are bridged. • When diving in high altitude waters from 916 to 4,270 m (3,001 to 14,000 ft), the i550 automatically adjusts to these conditions providing corrected depth, and reduced NO DECO (decompression) and O2 MIN (O satura- tion) times at intervals of 305 m (1,000 ft).
Page 50: Quick Disconnect Hose (Optional)
The optional Quick Disconnect allows for convenient removal and storage of your i550 console. Quick Disconnect Hose Removal • Push the hose fitting towards the i550 and turn counterclockwise ¼ turn. The hose will release from the console. Quick Disconnect Hose Assembly •...
Page 52: No Decompression Time Limits
0:04 0:04 0:03 0:03 0:03 0:03 0:03 0:05 0:04 0:04 0:04 0:04 0:03 0:03 0:03 0:03 0:03 0:03 0:03 0:05 0:04 0:04 0:03 0:03 0:03 0:03 0:03 0:03 0:03 0:03 0:03 © Aqua Lung International, Inc. (2016) Doc. 12-7840-r03 (3/28/16)
Page 53: Oxygen Exposure Limits
OXYGEN EXPOSURE LIMITS (from NOAA Diving Manual) MAX DURATION MAX TOTAL DURATION SINGLE EXPOSURE 24 HOUR DAY (ATA) (MIN) (MIN) 0.60 0.70 0.80 0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60 © Aqua Lung International, Inc. (2016) Doc. 12-7840-r03 (3/28/16)
Page 54: Specifications
• Out of the water - between -6.6 and 60 °C (20 °F and 140 °F). • In the water - between -2.2 and 35 °C (28 °F and 95 °F). © Aqua Lung International, Inc. (2016) Doc. 12-7840-r03 (3/28/16)
Page 55 0:00 to 23:59 hr:min 1 minute • Violation Countdown Timer 23:50 to 0:00 hr:min 1 minute Max Functional Depth: Limit: • DIVE 100 M (330 FT) • GAUGE 120 M (399 FT) © Aqua Lung International, Inc. (2016) Doc. 12-7840-r03 (3/28/16)
Page 56: Abbreviations/Terms
SS = Safety Stop LAST = Previous (dive) SURF = Surface M = Meters (depth) TTS = Time To Surface M-D (D-M) = Month - Day (Day - Month) VIO/VIOL = Violation © Aqua Lung International, Inc. (2016) Doc. 12-7840-r03 (3/28/16)
Page 57 www.aqualung.com...

Aqua Lung i550 Owner's Manual

Getting Started

Dive Features

Dive Surface Mode

Dive Operation

Gauge Mode

Reference

Technical Data

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Summary of Contents for Aqua Lung i550

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