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GEO 4.0 OPERATING MANUAL

© Pelagic, 2019

Doc. No. 12-5670-r01 (2/27/18)

WATCH MODE

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Summary of Contents for GEO 4.0

Page 1: ...1 GEO 4 0 OPERATING MANUAL Pelagic 2019 Doc No 12 5670 r01 2 27 18 GEO 4 0 DIVE COMPUTER OPERATING MANUAL...

Page 2: ...DTR DIVE TIME REMAINING ALARM 30 SET UTILITIES 30 1 H2O ACTIVATION 31 2 UNITS IMP MET 31 3 DEEP STOP 31 4 SAFETY STOP 32 5 ALGORITHM 32 6 CONSERVATIVE FACTOR 33 7 BLUETOOTH BLUETOOTH COMMUNICATION 33...

Page 3: ...RATION MODE 53 INITIATING A DIVE 53 1 ELAPSED DIVE TIME ALARM 53 2 DEPTH ALARMS 1 3 53 FREE DIVE MAIN 54 FREE DIVE ALT 1 54 FREE DIVE ALT 2 54 HIGH NITROGEN ALARMS 54 REFERENCE 55 UPLOADING DOWNLOADIN...

Page 4: ...Loading Bar Graph TLBG Pre Dive Planning Sequence PDPS OceanLog and Dual Algorithm are all registered and unregistered trademarks trade names and service marks of Pelagic All rights are reserved PATEN...

Page 5: ...5 GEO 4 0 OPERATING MANUAL Pelagic 2019 Doc No 12 5670 r01 2 27 18 Welcome to OCEANIC and THANK YOU for choosing the Geo 4 0...

Page 6: ...6 GEO 4 0 OPERATING MANUAL Pelagic 2019 Doc No 12 5670 r01 2 27 18 GETTING STARTED...

Page 7: ...age life of the Battery for up to 7 years before the unit is initially placed into service In this mode Date and Time are updated as they normally would be However they are not displayed Upon waking t...

Page 8: ...ly Alarm Set 4 Nitrox 5 Time ID 6 Logbook 7 Surface 8 Depth ID units 9 Time ID 10 Variable Ascent Rate 11 Descend Ascend or Stop 12 Dive Time or 13 Fraction of Oxygen 14 Low Battery 15 Gas 16 Value is...

Page 9: ...ic information They are also used to enter settings activate the backlight and acknowledge the audible alarm Pressing different combinations of these buttons will navigate through different menus and...

Page 10: ...setting S E L E C T A D V L I G H T M O D E to access Alt screens to advance through selections to toggle or change setpoints to increase a setting S E L E C T A D V L I G H T M O D E to activate the...

Page 11: ...OPERATING MANUAL Pelagic 2019 Doc No 12 5670 r01 2 27 18 ACTION BUTTON FUNCTION S E L E C T A D V L I G H T M O D E A D V to scroll or increase a setting value at a faster rate to reset chronograph W...

Page 12: ...12 GEO 4 0 OPERATING MANUAL Pelagic 2019 Doc No 12 5670 r01 2 27 18 WATCH MODE...

Page 13: ...an be set as the Default Time If DUAL time is set ON the time zone that is not set as the Default Time will display in the top section of the screen Daily Alarm set on Day P M Time Default Time is AWA...

Page 14: ...h audible alarm The initial options are OFF or SET To set the timer you must save an hour value then the minute value You may choose a value between 0 01 and 23 59 Once a countdown time is set the ON...

Page 15: ...lap 1 9 after 4 99 seconds centiseconds display as S E L E C T A D V L I G H T M O D E CHRONOGRAPH LEAD IN access Chronograph status CHRONOGRAPH STATUS 5 seconds hr min sec CHRONOGRAPH STATUS 5 secon...

Page 16: ...Y ALARM LEAD IN access Daily Alarm status S E L E C T A D V L I G H T M O D E OFF ON or SET DAILY ALARM STATUS to select toggle setting toggle setting S E L E C T A D V L I G H T M O D E SET DAILY ALA...

Page 17: ...he Watch Main S E L E C T A D V L I G H T M O D E to select toggle setting HOME or AWAY 4 ALTERNATE TIME Alternate Time allows you to set another time zone that is referred to as AWAY Time Selections...

Page 18: ...Pelagic 2019 Doc No 12 5670 r01 2 27 18 6 DATE Set the year month and day in order The corresponding digit will flash allowing it to be set S E L E C T A D V L I G H T M O D E decrease value increase...

Page 19: ...19 GEO 4 0 OPERATING MANUAL Pelagic 2019 Doc No 12 5670 r01 2 27 18 DIVE FEATURES...

Page 20: ...trol shifts to slower compartments This is a feature of the decompression model that is the basis for multilevel diving one of the most important advantages that Oceanic dive computers offer DTR is No...

Page 21: ...is based on Buhlmann ZHL 16c It features NDLs that are considerably more conservative than the DSAT version especially at shallower depths To create even greater margins of safety with respect to deco...

Page 22: ...Timer On Upon ascending to 20 FT 6 M for 1 second on a No Deco dive in which Depth exceeded 30 FT 9 M for 1 second 1 beep will sound and a Run Timer will appear if set On displaying 0 00 min sec until...

Page 23: ...t Alarms setting Free Dive Modes have their own alarms which emit multiple beeps multiple times which cannot be acknowledged or set to OFF Events that emit 10 beeps each sound for sec with sec silence...

Page 24: ...24 GEO 4 0 OPERATING MANUAL Pelagic 2019 Doc No 12 5670 r01 2 27 18 NORM SURFACE MODE...

Page 25: ...option S E L E C T Exit Menu M O D E ALT 1 LAST DIVE The ALT 1 screen displays essential data from the last dive If there has been no dive within the current activation cycle dashes will display for...

Page 26: ...0 00 hr min it will remain on the display as 0 00 until the Fly count down reaches 0 00 NO PREVIOUS DIVES 10 MIN AFTER A DIVE hr min 9 displays if time 9 59 PLAN This mode calculates dive depth and ti...

Page 27: ...in memory when the memory becomes full If you do not remem ber to log or download your dives they will be lost when the memory overwrites See the Download section of this manual for instructions on do...

Page 28: ...related data such as PO2 O2 will not be displayed at any time during the dive on the surface or in Plan Mode Though these oxygen values will be tracked internally for use in any subsequent nitrox dive...

Page 29: ...or OFF S E L E C T A D V L I G H T M O D E to select toggle setting OFF or ON SET AUDIBLE ALARM 2 DEPTH ALARM The Depth Alarm feature allows you to set a maximum depth alarm S E L E C T A D V L I G H...

Page 30: ...TRIGGERED of segments selected if ON or OFF flashing 5 DTR DIVE TIME REMAINING ALARM This feature allows you to set an alarm to go off with a designated reserve of dive time remaining 176 NORM DTR AL...

Page 31: ...before any dive S E L E C T A D V L I G H T M O D E toggle setting to select OFF or ON SET H2O ACTIVATION 2 UNITS IMP MET The Units feature allows you to select whether IMP imperial or MET metric unit...

Page 32: ...F ON or TMR SET SAFETY STOP S E L E C T A D V L I G H T M O D E decrease value increase value to select 3 00 or 5 00 min sec SET SAFETY STOP TIME S E L E C T A D V L I G H T M O D E decrease value inc...

Page 33: ...your mobile device using Diverlog software NOTE When Bluetooth is ON the Bluetooth icon will be displayed when on the surface and in Norm Gauge or Free Mode but not during Watch or Standby Mode Bluet...

Page 34: ...O D E decrease value increase value to select 2 15 30 or 60 sec SET SAMPLE RATE DIVE GAUGE DOWNLOAD MEMORY CAPAC ITY SAMPLE RATE seconds MAXIMUM HOURS 2 4 15 32 30 64 60 128 SET MODE OPERATION MODE S...

Page 35: ...at clears nitrogen and oxygen calculations This is intended for facilities using the Geo 4 0 for rental or training activities not for general use by individual divers The feature is hidden to prevent...

Page 36: ...36 GEO 4 0 OPERATING MANUAL Pelagic 2019 Doc No 12 5670 r01 2 27 18 NORM DIVE MODE...

Page 37: ...rning or alarm The following information in this chapter demonstrates and describes an uneventful dive in terms of safety Alarms are described in the Complications section of this chapter NOTE Before...

Page 38: ...T 1 and Dive ALT 2 displays respectively See Deep Stop in the Dive Features chapter for further details NOTE The Geo 4 0 does not penalize for a missed Deep Stop stop depth remaining stop time min sec...

Page 39: ...n a Dive Main screen is displayed Gases cannot be switched while on the surface The Gas Switch Menu cannot be accessed during the sounding of alarms If an alarm strikes while in the Gas Switch Menu th...

Page 40: ...n the max ascent rate allowed Total Ascent Time 0 999 then if greater than 999 min stop depth remaining stop time min up arrow DECOMPRESSION STOP MAIN Decompression deco Stop Main will display upon as...

Page 41: ...min down arrow flashing Tissue Loading Bar Graph flashing missed stop depth DV1 5 MIN ON SURFACE Surface Time hour min DELAYED VIOLATION 2 DV 2 If the calculated Decompression obligation requires a St...

Page 42: ...24 hours VGM lockout does not allow access to the Set Gas Plan Desat and Free mode features screens All Watch functions will be allowed The Fly countdown timer provides the time remaining before norm...

Page 43: ...owing O2 min Alarm If O2 SAT reaches the Alarm level the audible alarm sounds At the same time the up arrow and the O2 SAT value will flash in place of DTR until surfacing flashing flashing Warning Du...

Page 44: ...No Decompression O2 SAT 100 will flash until the O2 SAT value decreases below 100 If you surface due to 100 O2 without having completed the Decompression obligation the full TLBG and O2 value 100 wil...

Page 45: ...45 GEO 4 0 OPERATING MANUAL Pelagic 2019 Doc No 12 5670 r01 2 27 18 GAUGE MODE...

Page 46: ...UTILITIES SET MODE HISTORY SERIAL NUMBER back to Main to Select an option S E L E C T Exit Menu M O D E mode bluetooth on GAUGE STANDBY MODE no previous dive GAUGE STANDBY MODE post dive hr min countd...

Page 47: ...back to Main A D V GAUGE DIVE MAIN S E L E C T A D V L I G H T M O D E backlight GAUGE DIVE MAIN The Gauge Dive Main provides basic information including depth dive time max depth and ascent rate dur...

Page 48: ...mum functional depth the audible alarm will sound and the alarm LED will flash At the same time the up ar row will flash and depth will only indicate dashes signifying that you are too deep The max de...

Page 49: ...49 GEO 4 0 OPERATING MANUAL Pelagic 2019 Doc No 12 5670 r01 2 27 18 FREE MODE...

Page 50: ...associated with the high pressures that competitive type free diving can expose a diver to WARNINGS Ensure that you know which operating mode is selected Norm Gauge or Free prior to commencing any di...

Page 51: ...itrogen S E L E C T A D V L I G H T M O D E to Watch Mode backlight FREE MAIN ALT 1 ALT 2 CDT SET FREE ALARMS SET MODE back to Main to Select an option S E L E C T Exit Menu M O D E FREE STANDBY MODE...

Page 52: ...00 the audible will sound During which time the graphic CDT will be displayed flashing on the Surface or Dive Main until the audible is silent NOTE Setting the CDT does not start the countdown You mu...

Page 53: ...ple If Depth Alarm 1 is set for 30 ft then Depth Alarm 2 settings start at 40 ft DEPTH ALARM 2 TRIGGERED Depth Alarm 1 3 similar flashing flashing SET DEPTH ALARM 1 Depth Alarm 2 3 are similar S E L E...

Page 54: ...tells you the max depth and current time of day HIGH NITROGEN ALARMS When nitrogen increases to the caution level 4 Tissue Loading Bar Graph segments the audible alarm will sound 3 sets of 3 beeps Du...

Page 55: ...55 GEO 4 0 OPERATING MANUAL Pelagic 2019 Doc No 12 5670 r01 2 27 18 REFERENCE...

Page 56: ...ed under the terms of the 2 year limited warranty To Obtain Service Take your Geo 4 0 to an Authorized Oceanic Dealer or send it to the nearest Oceanic Regional Facility To return your Geo 4 0 to Ocea...

Page 57: ...e they are not cracked or damaged WARNINGS If damage or corrosion is found return your Geo 4 0 to an authorized Oceanic dealer and DO NOT attempt to use it until it has received factory prescribed ser...

Page 58: ...ngs must be within 1 foot 30 cm of each other to record that ambient pressure as the current Altitude No adjustments are made during any time that the Wet Contacts are bridged When diving in high alti...

Page 59: ...59 GEO 4 0 OPERATING MANUAL Pelagic 2019 Doc No 12 5670 r01 2 27 18 TECHNICAL DATA...

Page 60: ...05 0 05 0 05 0 05 150 0 08 0 06 0 06 0 06 0 05 0 05 0 05 0 05 0 05 0 04 0 04 0 04 160 0 07 0 06 0 05 0 05 0 05 0 05 0 05 0 04 0 04 0 04 0 04 0 04 170 0 07 0 05 0 05 0 05 0 04 0 04 0 04 0 04 0 04 0 04...

Page 61: ...03 0 03 0 03 0 03 180 0 05 0 04 0 04 0 04 0 03 0 03 0 03 0 03 0 03 0 03 0 03 0 03 190 0 04 0 04 0 04 0 03 0 03 0 03 0 03 0 03 0 03 0 03 0 03 0 00 Z BASED NDLS HR MIN METRIC Altitude 0 916 1221 1526 18...

Page 62: ...rational from sea level to 14 000 feet 4 270 meters elevation Measures ambient pressure every 30 minutes in Watch mode when Dive Computer mode is accessed and every 15 minutes while in DC Surface mode...

Page 63: ...me 0 to 999 min 1 minute DIVE GAUGE Elapsed Dive Time 0 to 999 min 1 minute Free Elapsed Dive Time 10 min 0 00 to 9 59 min sec 1 second Free Elapsed Dive Time 10 min 10 to 999 min 1 minute Surface Int...

Page 64: ...tude FO2 Fraction of Oxygen FORM Format date time FPM Feet Per Minute FT Feet depth HR Hour M Meters depth MAX Maximum M D D M Month Day Day Month MIN min Minutes time MPM Meters Per Minute NDC No Dec...

Page 65: ...e ___________________________________________________________________________________________________ Purchased from ___________________________________________________________________________________...

Page 66: ...66 GEO 4 0 OPERATING MANUAL Pelagic 2019 Doc No 12 5670 r01 2 27 18 Geo 4 0 DIVE COMPUTER OPERATING MANUAL...

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