GEO Watch / Dive Computer operating manual
f g h q a b i p e j c d o k n m l FULL LCD 2 Components: a. Mode (M) Button b. Select (S) Button c. Light (L) Button d. Advance (A) Button e. LED Warning Light f. Bar Graph g. Icon - Log Mode h. Icon - Ascend i. Icon - Surface Interval O2 Time Remaining No Deco Time Remaining Total Ascent Time FO2 Set Point j. Icon - Degrees k. Icon - Stop Time Required Elapsed Dive Time l. Icon - PO2 m. Icon - Nitrox n. Icon - Daily Alarm set o. Icon - Low Battery p Icon - Depth/Max Depth q.
CONTENTS FULL LCD .............................................................................................................................................................. 2 WARRANTY, NOTICES, DECOMPRESSION MODEL .......................................................................................... 7 INITIAL ACTIVATION ..............................................................................................................................................
CONTENTS (continued) DIVE COMPUTER SURFACE SEQUENCE AND OPERATING MODES ............................................................. 37 DC OPERATING MODES ................................................................................................................................. 38 SURFACE MODE ............................................................................................................................................. 38 NORM Surface Mode ...............................................
CONTENTS (continued) OVERVIEW OF DIVE MODE INFORMATION ...................................................................................................... 71 DISPLAYED SYMBOLS AND ICONS .............................................................................................................. 72 DIVE TIME REMAINING (DTR) ........................................................................................................................ 73 No Decompression DTR (NDC) ................................
CONTENTS (continued) FREE DIVE OPERATING MODE ....................................................................................................................... 105 FREE Surface Mode ................................................................................................................................... 106 FREE CDT (COUNTDOWN TIMER) .............................................................................................................. 108 Set FREE CDT .................................
LIMITED TWO-YEAR WARRANTY For details, refer to the Product Warranty Registration Card provided. Register on-line at www.OceanicWorldwide.com COPYRIGHT NOTICE This operating manual is copyrighted, all rights are reserved. It may not, in whole or in part, be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine readable form without prior consent in writing from Oceanic / 2002 Design. GEO Operating Manual, Doc. No.
NOTICE STORAGE and INITIAL ACTIVATION GEO Watch/Dive Computers are placed in a Deep Sleep mode prior to being shipped from the factory. The intent is to extend storage life of the Battery for up to 7 years, before the unit is initially placed in service. In this mode, Date and Time are updated as they normally would be. they are not displayed. However, Upon waking the GEO up, the correct Date and U.S. Pacific Time will be displayed and it will be ready to operate with full functions.
WARNING: Prior to diving with the GEO, you must also read and understand the Oceanic Dive Computer Safety and Reference Manual, Doc. No. 12-2262, which provides Important Warnings and Safety Recommendations as well as general product information.
INTRODUCTION Welcome to OCEANIC and thank you for choosing the GEO ! It is extremely important that you read this Operating Manual in sequence and understand it completely before attempting to use the GEO as a dive computer. It is equally important that you read the Oceanic Dive Computer Safety and Reference Manual (Doc. No. 12-2262) provided with your GEO. It contains information that you must become familiar with prior to diving with your GEO.
OPERATING MODE STRUCTURE Unless it is operating in Dive Computer mode, the GEO will be ON in the default WATCH MAIN TIME (home time) mode (Fig. 1), like a standard WATCH, until the Mode is changed. Main Sequence (while at home) Main Time Alternate Time Countdown Timer The M button is used to access 4 other Modes that include Alternate Time Mode, Countdown Timer, Chronograph (stop watch/lap timer), and Daily Alarm. It is also used to revert to the Local Default Time display and access Computer Modes.
OPERATION AS A DIVE COMPUTER The GEO features 3 Dive Computer (DC) Operating Modes, NORM (Fig. 2A) which is used for Air and Nitrox dives, GAUG (Fig. 2B) used for dives in which Nitrogen-Oxygen calculations are not performed, and FREE (Fig. 2C) used for activities that do not use SCUBA. 2A Entering Settings and Plan Mode are only available in NORM SURF Mode which also allows access to Fly, Desat, Log, and History Modes. GAUG Mode only allows access to Fly, Log, and History Modes.
The Data Download program is used to retrieve Data that was sampled during dives and stored in the GEO's memory. The GEO checks for an External Access request once every second while in the Watch Main Time. Checks are not made if the unit is wet. For a connection to be made, the Interface Cable is clipped onto the GEO's Data Port and plugged into a PC USB Port. To establish the connection, the PC program must be running.
FREE Dive Mode has its own set of Alarms which emit 3 short beeps either 1 or 3 times which cannot be acknowledged or set Off. A red LED Warning Light, located on the left side of the housing, is synchronized with the Audible Alarm. It will flash as the Audible Alarm sounds. when the Alarm is acknowledged or the situation is corrected. It will turn Off The Audible and LED will not be active if the Alarm is Set OFF (a group A setting).
A single short beep (which cannot be disabled) is emitted for the following Upon completion of a Hot Swap battery change. Change from Delayed to Full Violation 5 minutes after the dive. 3 short beeps (which cannot be disabled) are emitted for the following NORM/GAUG Ascent Rate is 51 to 60 FPM (15.1 to 18 MPM) when deeper than 60 FT (18 M), or 26 to 30 FPM (7.5 to 9 MPM) at 60 FT (18 M) and shallower. FREE Elapsed Dive Time Alarm (3 beeps every 30 seconds if set On).
NOTE: Extensive use of the Backlight reduces estimated Battery life. Also, the Backlight does not operate during a Low Battery Condition or when the GEO is connected to a PC. a POWER SUPPLY Fig. 3 - LOW BATTERY WARNING used as a Dive Computer, the battery should operate normally The GEO utilizes one 3 volt CR2430 Lithium Battery. When for 1 year or 300 dive hours if 2 dives are conducted during each dive period. The GEO checks its battery voltage every 2 minutes during surface operation.
WARNING: Prior to diving with the GEO, you must also read and understand the Oceanic Dive Computer Safety and Reference Manual, Doc. No. 12-2262, which provides Important Warnings and Safety Recommendations as well as general product information.
LOCAL DEFAULT TIME Watch Main Time (Fig. 5) is the current Time at your home location and is normally selected as the Local Default Time. The normal Watch screen sequence accessed with momentary Fig. 5 - MAIN TIME presses (less than 2 seconds each) of the M button is - Main Time > Alternate Time > Countdown Timer > Chronograph > Daily Alarm TIME for the Remote Location will display Am (or Pm). Local Default TIME will not. Watch Alternate Time (Fig.
While viewing any of the Watch Mode displays, pressing and holding the M button for 2 seconds or if no button is pressed for 2 minutes, operation will revert to the Watch Time screen selected to be the Local Default Watch Time (Main or Alternate). MAIN TIME, information displayed includes: > Tissue Loading Bar Graph, if any after NORM/FREE dives. > Alarm icon - if the Daily Alarm is set On (Fig. 7a) > Day of the Week graphic MON (or TUE, WED, THU, FRI, SAT, SUN), or the graphic WET (if the unit is wet).
SET MAIN TIME This Mode allows the Date and Time of Day to be set which will also serve as the basis for ALTERNATE TIME values. There are 3 Time Set screens - Set Hour Format, Set Time of Day, and Set Date. NOTE: MAIN TIME must be selected as the Local Default Time in order to set the Time and Date. Sequence of Time/Date settings: Hour Format > Hour > Minute > Year > Month > Day Day of the Week is set automatically when the Date is set.
Pressing the A button momentarily (< 2 seconds) will save the Hour Format Set Point and access the SET TIME screen with the HOUR Set Point flashing (Fig. 9). HINT - Pressing the A button repeatedly (< 2 seconds each time) will step through the Time/Date Settings, bypassing those that don't require setting. Set Hour and Minute Fig. 9 - SET HOUR The graphic A (= Am) or P (= Pm) is displayed when Time is in 12 Hour Format.
Displayed on the SET DATE screen will be the graphic YEAR, Month and Day (or Day and Month if set for metric) with the YEAR Set Point flashing (Fig. 11). Depressing and holding the S button while the YEAR Set Point is flashing will scroll through the Set Points in 1 year increments at a rate of 4 per second from 2006 to 2049 Fig. 11 - SET YEAR (with leap year corrections).
Pressing and releasing the A button momentarily (< 2 seconds) will save the Set Point and/or advance to the MAIN TIME screen. Main Time/Date can also be set using the PC Settings Upload program which is on the NOTE: DAY of the WEEK is set automatically based upon the Date that has been set. OceanLog software CD. Prior to shipment from the factory, any error of the Main Time is determined and ALTERNATE TIME corrected.
Depressing the S button for 2 seconds will interchange ALTERNATE TIME with MAIN TIME making ALTERNATE TIME the Local Default Time screen. Pressing the L button will activate the Backlight. Depressing both the A and S buttons simultaneously for 2 seconds will access the SET ALTERNATE TIME Mode with the Set Point flashing. Depressing and holding the M button for 2 seconds will revert to the MAIN TIME screen.
If no button is pressed during a period of 2 minutes, the unit will revert to the MAIN TIME screen. FREE Mode has separate COUNTDOWN TIMER WATCH COUNTDOWN TIMER (HR:MIN) Pressing the M button momentarily 2 times (< 2 seconds each) while the Local Default Time screen is displayed will access the Countdown TIMER screen, displaying the remaining Countdown Time (hr:min) if running, or OFF flashing (Fig.
Depressing both the A and S buttons simultaneously for 2 seconds will access the SET WATCH COUNT DOWN TIMER screen indicated by the graphics TIMR and SEt, symbol TIME, and HOUR Set Point flashing (Fig. 17). > If no button is pressed during a period of 2 minutes, the unit will revert to the Local Default Watch Time screen. Fig.
CHRONOGRAPH (Stop Watch/Lap Timer) Pressing and releasing the M button momentarily 3 times (< 2 seconds each) while the MAIN TIME screen is displayed will access the CHRONOGRAPH displaying the elapsed time if previously started or 0:00:00.00 (hr:min:sec.1/100th sec), flashing (Fig. 19). Pressing and releasing the S button momentarily (< 2 seconds) will start the TIMER which will begin counting up Fig. 19 - CHRONOGRAPH from 0:00:00.00 to 9:59:59.99 (hr:min:sec.1/100th sec) in increments of .
Pressing and releasing the M button momentarily (< 2 seconds) will advance to DAILY ALARM. Depressing and holding the M button for 2 seconds will revert to the Local Default Watch Time screen. While the Chronograph is running, it will remain on the screen until a button operation is performed. If another screen is accessed, it will then continue to run in the background. Upon descending on a dive, the Chronograph operation will be terminated and reset to 0:00:00.00.
> Upon being toggled to ON, the Alarm will be set to sound every day at the Time indicated. Depressing both the A and S buttons simultaneously for 2 seconds will access the SET DAILY ALARM screen allowing a new Time to be set. Depressing and holding the M button for 2 seconds will Pressing the L button will activate the Backlight. revert to the Local Default Watch Time screen. > If no button is pressed during a period of 2 minutes, the unit will revert to the Local Default Watch Time screen.
Depressing and holding the S button while the MINUTE Set Point is flashing will scroll through the Set Points in 1 minute increments at a rate of 4 per second from :00 to :59. Pressing and releasing the A button momentarily (< 2 seconds) will save the MINUTE Set Point and/or advance to the DAILY ALARM screen indicated by the graphic ON (or OFF) flashing. Depressing and holding the M button for 2 seconds will 30 DI RESP O VER revert to the Local Default Watch Time screen.
WARNING: Prior to diving with the GEO, you must also read and understand the Oceanic Dive Computer Safety and Reference Manual, Doc. No. 12-2262, which provides Important Warnings and Safety Recommendations as well as general product information.
a BAR GRAPH The GEO features one shared Bar Graph that represents either nitrogen loading, or when accessed, oxygen accumulation. By default, the Bar Graph (Fig. 23a), referred to as the Tissue Loading Bar Graph (TLBG), represents your relative no decompression or decompression status. Fig.
Displays associated with oxygen and the O2 Bar Graph will be displayed if FO2 has been set at a value other than 'Air' (e.g., a numerical value) and the Alternate screen that displays oxygen related data is accessed. When the oxygen data screen is accessed during a NORM dive, the Bar Graph will show the maximum of either per dive accumulated oxygen or 24 hour period accumulated oxygen.
a While you cannot provide a guarantee against the occurrence of decompression sickness, you may choose your own personal zone of caution based upon age, physique, excessive weight, etc., to reduce the statistical risk. Within the available NORM Mode parameters that can be set Fig. 26 - CURRENT DEPTH (described later) are a TLBG Alarm and a Conservative Factor which if set ON reduces No Decompression times allowed.
a The colon that separates hours and minutes (minutes and seconds) blinks once per second when the display is indicating real time (e.g., Surface Interval, Elapsed Dive Time), and is solid (non-blinking) when times are calculated projections (e.g., Time to Fly, Plan). The Primary Time display is located inthe middle row of the display (Fig. 28a). in the lower row. b Fig. 28 - TIMES Another time display (Fig. 28b) is located Both displays are identified by the symbol TIME.
NOTE: Each display represents unique pieces of information. It is imperative that you understand the formats, ranges, and values of the information represented to avoid any possible misunderstanding that could result in error. You must also understand the icons, symbols, and alpha/ numeric messages presented. The Informational Displays are described in detail as the various operating modes they appear in are presented throughout this manual.
WARNING: Prior to diving with the GEO, you must also read and understand the Oceanic Dive Computer Safety and Reference Manual, Doc. No. 12-2262, which provides Important Warnings and Safety Recommendations as well as general product information.
DIVE COMPUTER (DC) OPERATING MODES The GEO features 3 selectable DC Operating Modes NORM - for Normal Air or Nitrox dives GAUG - for dives with no Nitrogen/Oxygen calculations (Once a dive is made in GAUG Mode, dive computer operation is locked into Gauge Mode for 24 hours after the dive.
The Operating Mode selected (NORM, GAUG, or FREE) will remain on display for 2 hours until a dive is made or Watch Mode is selected. If a dive has been conducted within the past 24 hours, the SURF MAIN screen for that Operating Mode (NORM, GAUG, or FREE) will be displayed. At any time while operating in Surface Modes, the GEO will enter Dive Mode upon descent to 5 FT (1.5 M) for 5 seconds.
When the 10 minute Surface Time has elapsed, the Local Default Watch TIME screen (Main or Alternate Time) will replace the Surface Mode display. The SURF MAIN screen can then be accessed by pressing the M button for 2 seconds. NORM SURF MAIN, information provided includes (Fig. 33): > Tissue Loading Bar Graph (TLBG), if any after a NORM or > Graphic NORM alternating with the Altitude Level graphic FREE dive.
NORM SURF MAIN - Button Operations: Pressing the L button will activate the Backlight. Repeat press/release of the A button (< 2 seconds each time) will step through the Surface Sequence - SURF MAIN > PLAN > FLY > SAT > LOG > HISTORY Depressing and holding the A button for 2 seconds will access the NORM SURF ALT screen, which will revert to the Main Display after 5 seconds unless A is pressed.
NORM SURF ALTERNATE, information includes (Fig. 34): > Bar Graph with the graphic O2BG, representing Oxygen accumulation. > FO2 Set Point with FO2 icon. > Nx icon. Fig. 34 - NORM SURF ALTERNATE The display will revert to the NORM SURF MAIN screen Pressing and releasing the A button momentarily (< 2 Pressing the L button will activate the Backlight. after 5 seconds unless the A button is pressed. seconds) will access the SECONDARY screen. NORM SURF SECONDARY, information includes (Fig.
NORM AND GAUG SURFACE SET MODES NORM/GAUG Set Mode Sequence: SURF MAIN > SET F > SET A > SET U > Serial Number. Access and step through of the sequence is gained by repeated simultaneous 2 second presses of the A and S buttons. SET A (Alarms) and SET U (Utilities) Set Points can also be set/ changed using the PC Settings Upload program. SET F (FO2) entries must be made using only the push buttons. SET F GROUP (FO2) Set F Sequence: SET F > Set FO2 > Set FO2 50% Default.
Setting FO2 for NORM Nitrox Dives: For each value of FO2, the Maximum Operating Depth (MOD) that can be achieved for the PO2 Alarm Set Point limit previously set will be displayed. When the FO2 50% DEFAULT is set ON and FO2 is set for a numerical value, 10 minutes on the surface after that dive, FO2 will be displayed as 50 and further dives will be calculated based on 50% O2 for oxygen calculations and 21% O2 for Nitrogen calculations (79% Nitrogen) unless FO2 is set before the dive.
Maximum Operating Depths affected by the PO2 limit set will not be displayed when FO2 is set for AIR. Internally, the GEO keeps track of the oxygen loading so that if FO2 is subsequently set for a numerical value, the oxygen accumulation for previous AIR dives will be accounted for in the next Nitrox dive (during that dive period and series of repetitive dives). Fig.
Depressing and holding the S button while the Set Point is flashing will scroll through the Set Points from AIR to 21 through 50% in 1% increments, at a rate of 8 per second.
SET A GROUP (NORM/GAUG ALARMS) Set A Sequence: SET A > Audible > Depth > EDT > TLBG > DTR > PO2 The SET A Group can also be set/changed using the PC Settings Upload program. Fig. 40 - SET A > SET A Settings remain at the values set until changed. > Depressing the A and S buttons simultaneously for 4 seconds while NORM or GAUG SURF MAIN is displayed will access SET A identified by the graphic SETA (Fig. 40).
Pressing and releasing the S button (< 2 seconds) will Pressing and releasing the A button momentarily (< 2 toggle between ON and OFF. seconds) will save the setting and/or advance to the SET DEPTH ALARM screen with the Set Point flashing. Pressing and releasing the A button momentarily and repeatedly (< 2 seconds each time) will step through the other SET A screens. Depressing the A and S buttons simultaneously for 2 seconds will save the setting and revert back to the SET A screen.
Pressing and releasing the A button momentarily (< 2 seconds) will save the setting and/or advance to the SET EDT ALARM screen with the Set Point flashing. Pressing and releasing the A button momentarily and repeatedly (< 2 seconds each time) will step through the other SET A screens. Pressing the A and S buttons simultaneously for 2 seconds Depressing and holding the M button for 2 seconds or if will save the setting and revert back to the SET A screen.
Pressing and releasing the A button momentarily and repeatedly (< 2 seconds) will step through the other SET A screens. Depressing the A and S buttons simultaneously for 2 seconds will save the setting and revert back to the SET A screen. Depressing and holding the M button for 2 seconds or if no button is pressed for a period of 2 minutes operation FREE Mode has a separate TLBG Alarm. will revert to the NORM or GAUG SURF MAIN screen.
Depressing the A and S buttons simultaneously for 2 seconds will save the setting and revert back to the SET A screen. Depressing and holding the M button for 2 seconds or if no button is pressed for a period of 2 minutes operation will revert to the NORM or GAUG SURF MAIN screen. Whichever Time (NDC or O2) decreases to the Alarm Set Point will SET NORM DTR (DIVE TIME REMAINING) ALARM, activate the Alarm. information includes (Fig.
Depressing and holding the M button for 2 seconds or if Setting the PO2 no button is pressed for a period of 2 minutes operation Alarm to activate will revert to the NORM or GAUG SURF MAIN screen. before reaching the Max allowed limit of 1.60 ATA is highly recommended. SET NORM PO2 ALARM, information includes (Fig. 46): > Graphics PO2 and AtA with MAX icon. > Set Point value (x.xx ATA) flashing, with PO2 icon.
SET U GROUP (UTILITIES) Set U Sequence: SET U > Wet Activation > Units > Safety Stop > Conservative Factor > Backlight Duration > Sampling Rate. The SET U Group can also be set/changed using the PC Settings Upload program. The settings for Wet Activation, Units, Conservative Factor, and Backlight Duration also apply to FREE Mode. To change the settings while operating in FREE Mode, first access the NORM Surface Mode.
SET WET ACTIVATION, information includes (Fig. 48): > Graphic WET > Set Point graphic ON (or OFF) flashing. Pressing and releasing the S button will toggle between Pressing and releasing the A button momentarily (< 2 ON and OFF. Fig. 47 - SET WET ACTIVATION seconds) will save the setting and/or advance to the SET UNITS screen with the Set Point flashing. Pressing and releasing the A button momentarily and repeatedly (< 2 seconds each time) will step through the other SET U screens.
Pressing and releasing the A button momentarily (< 2 seconds) will save the setting and/or advance to the SET SAFETY STOP screen with the Time Set Point flashing. Pressing and releasing the A button momentarily and repeatedly (< 2 seconds Depressing the A and S buttons simultaneously for 2 seconds will save the Depressing and holding the M button for 2 seconds or if no button is pressed each time) will step through the other SET U screens. setting and revert back to the SET U screen.
Pressing and releasing the A button momentarily (< 2 seconds) will save the Safety Stop settings and/or advance to the SET CONS screen with the Set Point flashing. Pressing the A button momentarily and repeatedly (< 2 seconds) will step Depressing the A and S buttons simultaneously for 2 seconds will save the Depressing and holding the M button for 2 seconds or if no button is pressed through the other SET U screens. settings and revert back to the SET U screen.
Depressing and holding the M button for 2 seconds or if no button is pressed for a period of 2 minutes operation will revert to the NORM or GAUG SURF MAIN screen. NOTE: When the Conservative Factor is set ON, No Deco Limit times are reduced to values equivalent to those that would be available at the next higher 3000 foot (915 meter) Altitude. Refer to the tables at the back. SET BACKLIGHT DURATION information includes (Fig.
SET NORM/GAUG SAMPLING RATE, information includes (Fig. 52): > Graphics SAMP and SEC > Set Point (seconds), flashing, with TIME icon. Pressing and releasing the S button momentarily (< 2 seconds) will step through the Set Points of 2, 15, 30, 60 Fig. 52 - SET SAMPLING RATE (seconds). Pressing and releasing the A button (< 2 seconds) will Depressing and holding the M button for 2 seconds or if accept the setting and/or advance to the SET U screen.
Depressing and holding the M button for 2 seconds or if no button is pressed for a period of 2 minutes operation will revert to the NORM or GAUG SURF MAIN screen. NOTE: The Serial Number and Firmware Revision will be requested in the event that you contact Oceanic regarding the GEO. Enter them in the Records section provided in the back of this Manual.
While the PLAN LEAD-IN screen is displayed, pressing and releasing the S button momentarily and repeatedly (< 2 seconds each time) will increase the Planned Depth in increments of 10 FT (3 M), displaying the information one Depth screen at a time. Information provided includes Depths and allowable No Decompression Dive Times.
PLAN MODE LEAD-IN, information includes (Fig. 54): > Graphic PLAN > FO2 Set Point with FO2 icon > PO2 Alarm Set Point (x.xx ATA) with Nx and PO2 icons, when numerical values are displayed. Press and release the S button momentarily (< 2 seconds) to access the first screen (30 FT/9 M) of the PDPS. Fig. 54 - PLAN LEAD-IN PDPS, information includes (Fig. 55): > Plan Depth value with F (= feet) or M (= meters) graphic.
FLY MODE Time to Fly is a counter that begins counting down 10 minutes after surfacing from a dive from 23:50 to 0:00 (hr:min). Ten minutes after surfacing from a NORM, GAUG, or FREE dive, operation reverts to the Watch Mode Time screen with the Time to Fly Countdown running in the background. Access to the FLY screen can then be gained by first accessing the NORM (or GAUG) SURF MAIN screen.
Pressing and releasing the A button momentarily (< 2 seconds) will advance to SAT MODE. Depressing and holding the M button for 2 seconds will revert to the NORM If no button is pressed during a 2 minute period, operation will revert to the Pressing the L button will activate the Backlight. (or GAUG) SURF MAIN screen. NORM (or GAUG) SURF MAIN screen.
Depressing and releasing the A button momentarily and repeatedly 3 times (< 2 seconds each time) while viewing the NORM SURF MAIN screen will access SAT MODE. NORM SURF > PLAN > FLY > SAT DESAT TIME, information includes (Fig. 57): > Graphic SAT > Countdown Time (hr:min) with TIME icon. > Battery icon, if a Low Battery Warning Condition exists, flashing if Too Low Pressing and releasing the A button momentarily (< 2 seconds) will advance to LOG MODE.
After exceeding 24 dives, the most recent Dive completed will be added to the LOG and the oldest deleted. Dives will be numbered 1 to 24 starting at #1 each time a new series of dives begins. After it shuts Off 24 hours after a dive, the first dive of the next new series will be #1. During the first 10 minutes after a dive, pressing and releasing the A button momentarily (< 2 seconds) 1 time while the NORM (or GAUG) SURF MAIN screen is displayed will access LOG MODE.
LOG PREVIEW, information includes (Fig. 58): > Graphic No with the dive number (1 to 24) for that series. > Log icon. > Time of Day the dive began (hr:min) with TIME icon, and graphic A (= Am) or P (= Pm) if set for 12 Hour Format. This will be the Local Default Time selected, either Main or Alternate (with lazy 8 symbol if Alternate). > Date (month.day, or day.month if set for metric). > Nx icon, if FO2 was set for Nitrox.
LOG DATA 1, information includes (Fig. 59): > TLBG with the maximum accumulation segment flashing, others fixed up to end-of-dive accumulation. All segments flashing if a Violation occurred. > Graphic NO-D, DECO, GAUG, or VIOL indicating the type of dive when completed. > Log icon. > Pre dive Surface Interval time (hr:min) with SURF and TIME Fig. 59 - LOG DATA 1 icons, blank for Dive #1 of a series. > Elapsed Dive Time (hr:min) with DIVE and TIME icons. > Nx icon, if FO2 was set for Nitrox.
Depressing and holding the M button for 2 seconds or if no button is pressed during a 2 minute period operation will revert to the NORM (or GAUG) SURF MAIN screen. Pressing the L button will activate the Backlight. LOG DATA 3, information includes (Fig. 61): This screen will only be displayed for NORM Nitrox dives, bypassed for AIR, GAUG, and Violation dives. > O2BG, segments representing Oxygen accumulated at the end of the dive with graphic O2. > Log icon.
NORM/GAUG HISTORY MODE HISTORY Mode displays accumulative information for up to 9999 Dives, 9999 Dive Hours, and the Maximum Depth achieved. indefinitely. Battery HISTORY information is retained removal will not affect the HISTORY data stored for viewing. 10 minutes after a Non Violation NORM Dive, pressing and releasing the A button momentarily and repeatedly 5 times (< 2 seconds each time) while the NORM SURF MAIN screen is displayed will access the HISTORY MODE .
Pressing and releasing the A button momentarily (< 2 seconds) will advance to the NORM (or GAUG) SURF MAIN screen. Depressing and holding the M button for 2 seconds or if no button is pressed during a 2 minute period operation will revert to the NORM (or GAUG) SURF MAIN screen. Pressing the L button will activate the Backlight. HISTORY 2, information includes (Fig.
WARNING: Prior to diving with the GEO, you must also read and understand the Oceanic Dive Computer Safety and Reference Manual, Doc. No. 12-2262, which provides Important Warnings and Safety Recommendations as well as general product information.
OVERVIEW OF DISPLAYED SYMBOLS AND ICONS SYMBOLS MEANING MAX Maximum Depth (or PO2) FT (or M) Depth Units (Feet or Meters) SURF TIME Surface Interval Time, NORM/GAUG (hr:min) or FREE (hr:min:sec) TIME O2 O2 Dive Time Remaining (hr:min) TIME NDC No Decompression Dive Time Remaining (hr:min) TIME TAT Total Ascent Time Deco Stops plus vertical ascent Times (hr:min) FO2 FO2 Set Point STOP TIME Deco Stop Time (hr:min) or safety Stop Time (min:sec) DIVE TIME Elapsed Dive Time, NORM/GAUG (hr:min)
DIVE TIME REMAINING (DTR) One of the most important pieces of information on Oceanic dive computers is the Dive Time Remaining numeric display. The GEO constantly monitors No Decompression status and Oxygen Accumulation. The Dive Time Remaining display will indicate the No Deco Time or O2 Time, whichever Time is the least amount available. No Decompression Dive Time Remaining (NDC) NDC is the maximum amount of time that you can stay at your present Depth before entering a Decompression situation.
a The algorithm used is based upon Haldanes theory using maximum allowable nitrogen levels developed by Merrill Spencer. Repetitive diving control is based upon experiments designed and conducted by Dr. Ray Rogers and Dr. Michael Powell in 1987. Fig. 65 - O2BG Diving Science and Technology ® (DSAT), a corporate ® affiliate of PADI , commissioned these experiments.
VARIABLE ASCENT RATE Alerts associated with Ascent Rate are based upon 2 sets of speeds which change at a reference depth of 60 FT (18 M). WARNING: At depths greater than 60 FT (18 M), Ascent Rates should not exceed 60 FPM (18 MPM). At depths of 60 FT (18 M) and shallower, Rates should not exceed 30 FPM (9 MPM). Ascent Rate Warning At depths deeper than 60 FT (18 M), a Warning (Fig. 67) will be given when Ascent Rates exceed 50 FPM (15 MPM). until the Ascent is slowed.
ELAPSED DIVE TIME The maximum duration that Elapsed Dive Time will be displayed is 9 hours and 59 minutes (9:59). In the event that the GEO is at depth for a greater time, it will cease operation as a Dive Computer and revert to operation as a Watch, displaying the Main Time screen. CONTROL OF DISPLAYS During Dive Modes, there is a Main (Default) Display of important information relevant to the specific mode that the GEO is operating in (No Deco, Deco, GAUG, FREE, etc.).
WARNING: Prior to diving with the GEO, you must also read and understand the Oceanic Dive Computer Safety and Reference Manual, Doc. No. 12-2262, which provides Important Warnings and Safety Recommendations as well as general product information.
WET ACTIVATION CONTACTS The Wet Contact Dive Mode Activation feature is active any time WET ACTIVATION is set ON. The GEO is configured with contacts that will automatically activate Dive Mode when the space between the contacts is bridged by a conductive material (immersed in water) and it Fig. 68 - WATCH TIME senses a Depth of 5 FT (1.5 M) for 5 seconds. The contacts are the pins of the PC Interface Data Port and the stems of the Push Buttons.
NORM NO DECOMPRESSION DIVE MODE When the Wet Activation feature is set ON, the GEO will enter the NORM No Decompression Dive Mode any time a descent is made to 5 FT (1.5 M) for 5 seconds. When the Wet Activation feature is set OFF, the GEO will not enter Dive Mode upon descent unless it is operating in one of the NORM Dive Computer modes (menus) at that time. Modes such as Surface Mode, Plan, Fly, etc. At any time during the dive Press the L button to activate the Backlight.
NORM NO DECO DIVE ALT DISPLAY, information provided includes (Fig. 71) > Bar Graph representing O2 Accumulated with graphic > Max Depth with MAX and FT (or M) icons. > FO2 Set Point with FO2 icon, if FO2 is set for Nitrox. O2BG, if FO2 is set for Nitrox. Fig. 71 - NORM NO DECO ALT > PO2 (x.xx ATA) with PO2 icon, if FO2 is set for Nitrox. > Nx icon, if FO2 is set for Nitrox. The display will revert to the MAIN Display after 5 Press/release the A button to view the Secondary Display.
NORM DIVE NO DECO SAFETY STOP Upon ascending to 5 FT (1.5 M) below the Safety Stop Depth set on any No Decompression dive in which Depth exceeded 30 FT (9 M), a short beep will be emitted and a Safety Stop at the Depth set will appear on the display with a countdown timer that begins at the Safety Stop Time set. The Safety Stop will be displayed until the countdown times out (0:00 min:sec), or you descend below 30 FT (10 M), or you breach the surface.
NO DECO SAFETY STOP ALT 1 DISPLAY, information includes (Fig. 74) > TLBG representing Nitrogen loading. > Graphics SAFE, STOP, and xxF or xxM (value of the Stop > Current Depth with FT (or M) icon. > Dive Time Remaining (hr:min) with TIME and NDC (or O2) > Elapsed Dive Time (hr:min) with DIVE and TIME icons. > Nx icon, if FO2 is set for Nitrox. The display will revert to the MAIN Display after 5 Press/release the A button to view the ALT 2 Display. Depth set) scrolling at the top. Fig.
DECOMPRESSION DIVE MODE The GEO is designed to help you by providing a representation of how close you are to entering Decompression. Decompression Dive Mode activates when the theoretical No Decompression time and depth limits are exceeded. Upon Entry into DECO Mode, the Audible Alarm will sound, Fig. 76 - DECO ENTRY the red LED Warning Light will flash, and the graphic message DECO > STOP will scroll each 3/4 second On and 1/4 second Off, until acknowledged or for 10 seconds.
The amount of decompression Credit Time that you receive is dependent on Depth, with slightly less Credit given the deeper you are below the Stop Depth indicated. You should stay slightly deeper than the Required Stop Depth indicated until the next shallower Stop Depth appears. Then, you can slowly ascend to, but not shallower than that indicated Stop Depth. DECO STOP MAIN DISPLAY (Default), information provided includes (Fig. 78) > TLBG, all 5 segments indicating DECO.
DECO STOP ALT 1 DISPLAY, information provided includes (Fig. 79) > TLBG, all 5 segments indicating DECO. > Graphic message DECO > STOP > xxF (or xxM), > Current Depth with FT (or M) icon. > Total Ascent Time (hr:min) with TIME and TAT icons. scrolling, indicating the Stop Depth required. > Elapsed Dive Time (hr:min) with DIVE and TIME icons. > Nx icon, if FO2 is set for Nitrox.
SECONDARY DISPLAY, information includes (Fig. 81) > Day of the Week graphic (MON, TUE, etc.) > Time of Day (hr:min). This will be the Watch Time selected (MAIN or ALTERNATE). Fig. 81 - SECONDARY > Temperature with degrees icon and graphic F (or C). The display will revert to the MAIN Display after 5 seconds or if the A button is pressed/released.
No off gassing Credit will be given while above a Required 1 Stop Depth, and for each minute above it 1 / minutes of 2 Penalty Time will be added to Required Stop Time and TAT (Total Ascent Time). The added Penalty (decompression) Time will have to be worked off first, before obtaining off gassing credit will be given. Once the Penalty Time is worked off, and off gassing Credit begins, required Deco Stop Depths and Time will decrease toward zero.
DELAYED VIOLATION #2 (Fig. 84) The GEO cannot calculate Decompression times for Stop Depths much greater than 60 FT (18 M) and offers no indication of how much time spent underwater would result in the need for a greater Stop Depth. If the Decompression obligation requires a Deco Stop Depth Fig. 84 - DELAYED VIOLATION #2 MAIN between 60 FT (18 M) and 70 FT (21 M), the TLBG will flash and the graphic message DECO > STOP > 60F (18M) will scroll at the top of the display.
Upon ascending above 330 FT (100 M), the Current Depth display will be restored, however Max Depth will only display 3 dashes for the remainder of that dive. Also, the Log for that dive will display 3 dashes as the Max Depth achieved. IMMEDIATE VIOLATION AND VIOLA GAUGE MODE If a Decompression Ceiling Stop Depth much greater than 60 FT (18 M) is required, an Immediate Violation Mode will be entered. This situation would be preceded by entering Delayed Violation Mode #2.
The GEO will also enter an Immediate Violation Mode (Violation Gauge Mode) 5 minutes after surfacing from a dive in which a Delayed Violation occurred. Violation Gauge Mode on the Surface does not allow access to the SET F, PLAN, FLY, and SAT features/screens. The countdown timer that appears when you try to access Time to Fly does not represent Time to Fly. It is only provided to inform you of the time remaining before normal Dive Computer operation can resume with full features and functions.
HIGH PO2 When partial pressure of oxygen (PO2) becomes equal to, or greater than, 0.20 ATA less than the PO2 Alarm Set Point (a SET A Group setting); the Audible Alarm will sound, the red LED warning light will flash, and the message HIGH > PO2 will scroll until the Alarm is acknowledged/silenced. The graphic PO2 and UP Arrow will appear solid on the MAIN Display (Fig. 88) as a warning until PO2 decreases. After the Alarm is silenced, the graphic message UP > HIGH > PO2 will scroll.
HIGH OXYGEN ACCUMULATION The O2 Bar Graph displays either oxygen accumulated during that nitrox dive, or during the repetitive nitrox dives you conduct during that 24 hour period, whichever of the two is greater at that time. The O2 Bar Graph allows you to monitor how close you are coming to the limits of oxygen exposure.
SUMMARY OF NORM/GAUG WARNING AND ALARM MESSAGES MESSAGE MEANING DECO > STOP > xxF (M) Entry into Decompression Mode. DOWN > TO > xxF (M) Above a Required Decompression Stop Depth. DECO > STOP > 60F (18M) Deco Stop greater than 60 FT (18 M) required. UP > HIGH > PO2 High PO2 alarm while in No Deco Mode. HIGH > PO2 High PO2 alarm while in Deco Mode. UP > HIGH > O2 High O2 alarm. TOO > DEEP Depth alarm. UP > VIOL Deco Stop greater than 70 FT (21 M) required.
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WARNING: Prior to diving with the GEO, you must also read and understand the Oceanic Dive Computer Safety and Reference Manual, Doc. No. 12-2262, which provides Important Warnings and Safety Recommendations as well as general product information.
POST DIVE SURFACE MODE When you ascend to 2 FT (0.6 M), the GEO will enter Surface Mode and begin counting your Surface Interval. TRANSITION PERIOD If you descend during the first 10 minutes after surfacing (referred to as the Transition Period), time underwater will be considered a continuation of that dive. The time at the surface (if less than 10 minutes) will not be added as Dive Time. Transition Period information on the surface includes (Fig. 90): > TLBG, representing Nitrogen loading.
To view that dive's Log during the Transition Period Press/release the A button (< 2 seconds) to access the Press/release the S button (< 2 seconds) to view the Log Press/release the S button (< 2 seconds) again to view the Press/release the S button (< 2 seconds) again to view the Preview screen (Fig. 91). Data 1 screen. Log Data 2 screen. Log Data 3 screen. Press/release the S button (< 2 seconds) again to return to The screen will revert to the NORM Surface Main after 2 Fig.
To activate the Backlight Press the L button at any time. To access NORM PLAN Mode (refer to page 59) Press/release the A button. The Planning Sequence now displays adjusted No Decompression Limits based on residual nitrogen and accumulated oxygen calculated to be remaining from the previous dives. To access the FLY Mode (refer to page 62) Press/release the A button 2 times. To access the DESAT Mode (refer to page 63) Press/release the A button 3 times.
UPLOADING SETTINGS AND DOWNLOADING DATA The GEO is configured with a Data Port located on the back of the left side that enables it to be connected to a PC through a USB port using the OceanLog Interface Cable. A USB Driver is provided on the program CD as part of the Interface System. The Settings Upload portion of the OceanLog program can be used to set/change the Main Time, Date, Set A group (Alarms), and Set U group (Utilities) using the same Interface System.
PC compatibility requirements: IBM , or compatible, Personal Computer with USB Port Intel Microsoft Super VGA card or compatible video graphics adaptor (256 color or 16MB of available RAM ® ® Pentium 200 MHz or better microprocessor ® Windows ® 98 Second Edition, ME, NT, 2000, or XP greater) with a minimum 800 X 600 pixel screen area of display settings 20MB of available hard drive storage Mouse CD Rom drive Printer For software updates, refer to the Oceanic web si
WARNING: Prior to diving with the GEO, you must also read and understand the Oceanic Dive Computer Safety and Reference Manual, Doc. No. 12-2262, which provides Important Warnings and Safety Recommendations as well as general product information.
GAUGE MODE When Gauge Mode (GAUG) is selected as the Dive Computer Operating Mode, the GEO will operate as a Digital Depth Gauge/Timer without performing nitrogen and oxygen calculations. To access GAUG Operating Mode while Watch MAIN TIME is displayed, press the M button 2 times (2 seconds each time); or while the NORM SURF MAIN screen is displayed, press the M button 1 time for 2 seconds.
Press/release the A button to access Fly, Log, and History. Depress/hold the A button for 2 seconds to view the Depress/hold the A and S buttons simultaneously for 2 Press the L button to activate the Backlight. Secondary Display. seconds to access the SET menu (F > A > U). When GAUG Operating Mode is selected and upon descending to 5 FT (1.5 M) for 5 seconds, the GEO will enter GAUG DIVE Mode.
GAUG DIVE ALT DISPLAY, information provided includes (Fig. 95) - Fig. 95 - GAUG DIVE ALT > Graphic GAUG. > Max Depth with MAX and FT (or M) icons. > Elapsed Dive Time (hr:min) with DIVE and TIME icons. Press/release the A button to access the Secondary The display will revert to the MAIN Display after 5 display. seconds unless the A button is pressed/released. SECONDARY DISPLAY, information includes (Fig. 96) > Day of the Week graphic (MON, TUE, etc.) > Time of Day (hr:min).
WARNING: Prior to diving with the GEO, you must also read and understand the Oceanic Dive Computer Safety and Reference Manual, Doc. No. 12-2262, which provides Important Warnings and Safety Recommendations as well as general product information.
FREE DIVE MODE When FREE (Free Dive Mode) is selected as the Operating Mode, the GEO will operate as a Digital Depth Gauge with select features. Nitrogen calculations are based upon a default FO2 of AIR and the amount remaining during 24 hours is carried over between FREE and NORM Operating Modes.
Press the L button to activate the Backlight. FREE Mode uses the Depress the A button for 2 seconds to access the FREE NORM/GAUG SURF ALT Display from which you can access the >> Time/Date Press/release the A button momentarily (< 2 seconds) to >> Wet Activation access the FREE SURF CDT (Countdown Timer) Status Display allowing you to Set/Start/Stop the CDT. settings for - Secondary Display .
The display will revert to the FREE SURF MAIN screen after 5 seconds if the A button is not pressed. SECONDARY DISPLAY, information includes (Fig. 90) > Day of the Week graphic (MON, TUE, etc.) > Time of Day (hr:min). This will be the Watch Time selected (MAIN or ALTERNATE). Fig. 99 - SECONDARY > Temperature with degrees icon and graphic F (or C). The display will revert to the MAIN Display after 5 seconds or if the A button is pressed/released.
Press/release the S button momentarily (< 2 seconds) to > If a Time has been set, a toggle from OFF to ON will Start does not affect the CD Timer indicated by the colon flashing. the FREE CDT. > An ON/OFF toggle is prevented when S is operated to toggle between ON and OFF. The Set Point for the Watch CDT acknowledge/silence the Watch Daily Alarm.
NOTE: During a dive, the CDT can be turned OFF (stopped) and ON (started), but not Set. SET FREE CDT STATUS DISPLAY (SURFACE ONLY), information provided includes (Fig. 102) - Fig. 101 - SET FREE CDT > Graphic TIMR, solid. > Timer setting (min:sec) with the TIME icon, colon solid, > Graphic SEt, solid. Depressing/holding the S button while the MINUTE Set MINUTE Set Point flashing.
Pressing the A button momentarily (< 2 sec), or depressing the M button for 2 seconds, or if no button is pressed The Set Point for the NORM/ during a period of 2 minutes, the display will revert to the GAUG EDT FREE SURF MAIN screen. Alarm does not affect the FREE EDT Alarm. FREE EDT (ELAPSED DIVE TIME) ALARM The FREE EDT Alarm is factory set for 30 seconds.
Pressing/releasing the S button momentarily (< 2 seconds) will toggle the Set Pressing/releasing the A button momentarily (< 2 sec) will accept the setting Depressing the M button for 2 seconds, or if no button is pressed during a Point between OFF and ON. and access the SET FREE DEPTH ALARM 1 screen. period of 2 minutes, the display will revert to the FREE SURF MAIN screen.
SET FREE DEPTH ALARM 1 (FDA1) DISPLAY, information provided includes (Fig. 104) - The Set Point for the NORM/ > Graphic FDA1. GAUG Depth > Depth Alarm value, flashing if ON is displayed, with MAX Alarm does not and FT (or M) icons. affect the FREE > Set Point ON or OFF, flashing. Pressing/releasing the S button momentarily (< 2 seconds) Pressing/releasing the A button momentarily (< 2 seconds) Depth Alarms. will toggle the Set Point between ON and OFF. will accept the ON/OFF settings.
The range of Depressing the M button for 2 seconds, or if no button is available FDA 2 pressed during a period of 2 minutes, the display will Set Points begins revert the FREE SURF MAIN screen. at the next FT/M value greater than the FDA 1 Alarm Set Point. SET FREE DEPTH ALARM 2 (FDA2) DISPLAY, information provided includes (Fig. 105) > Graphic FDA2. > Depth alarm value, flashing if ON is displayed, with MAX > Set Point ON or OFF, flashing.
Pressing and holding the S button will scroll through the The range of Set Points at a rate of 4 Set Points per second until available FDA 3 released. Set Points begins Pressing the A button momentarily (< 2 sec) will accept the at the next FT/M Depth Setting and advance to SET FDA 3. value greater Depressing the M button for 2 seconds, or if no button is pressed during a period of 2 minutes, the display will than the FDA 2 Alarm Set Point. revert the FREE SURF MAIN screen.
Pressing/releasing the S button momentarily and repeatedly (< 2 seconds each time) will step through the Set Points from 50 to 330 FT (12 to 100 M) in increments of 10 FT (1 M) at a rate of 1 Set Point per press of the button. Pressing and holding the S button will scroll through the Set Points at a rate of 4 Set Points per second until released. Pressing the A button momentarily (< 2 sec) will accept the Depth Setting and the display will revert the FREE SURF MAIN screen.
FREE DIVE CDT STATUS DISPLAY, information provided includes > Graphic TIMR > Remaining Countdown time (hr:min:sec) with the TIME icon; and colon flashing if ON and a CD is in progress, 0:00 with the colon flashing if ON and no time is remaining. If OFF, the CD Time previously set will be displayed with the colon solid (Fig. 108). > Graphic ON (or OFF), flashing Pressing/releasing the S button momentarily (< 2 seconds) will toggle between ON and OFF. Fig.
FREE CDT (Count Down Timer) Alert When the FREE CDT decreases to 0:00 (min:sec), 3 short beeps will sound 3 times and the message TIMR will appear on the display 3 times momentarily (Fig. 110), then revert to the message FREE. FREE DEPTH Alarm(s) Fig. 110 - FREE CDT ALERT When Depth reaches the FREE DEPTH ALARM 1 Set Point selected, 3 short beeps will sound 3 times, the red LED will flash, and the message DPTH will appear on the display 3 times momentarily (Fig. 111), then revert to the message FREE.
FREE TLBG (Tissue Loading Bar Graph) Alarm While diving in FREE DIVE Mode, nitrogen accumulation from the FREE Dives and any previous NORM SCUBA Dives conducted within 24 hours is displayed as the TLBG. When Nitrogen Loading increases to the Caution level indicated by 4 segments displayed as the TLBG, the UP Arrow appears solid, 3 short beeps will sound 3 times, the red LED will flash, and the message UP > HIGH > NI will appear on Fig. 113 - FREE TLBG ALARM the display (Fig. 113).
Upon surfacing, the UP Arrow will be removed, however, the Full TLBG will continue to flash for 24 hours and dive computer operation will revert to FREE Permanent Violation Mode (Fig. 115) until a full 24 hours elapse with no diving. Access to Watch Mode will be allowed, but access to NORM or GAUG will be blocked. Fig.
WARNING: Prior to diving with the GEO, you must also read and understand the Oceanic Dive Computer Safety and Reference Manual, Doc. No. 12-2262, which provides Important Warnings and Safety Recommendations as well as general product information.
CARE AND CLEANING Protect your GEO from shock, excessive temperatures, exposure to chemicals, and tampering. Protect the lens against scratches with a Instrument Lens Protector. Small scratches will naturally disappear underwater. Soak and rinse the GEO in fresh water at the end of each day of diving, and check to ensure that the areas around the Low Pressure (Depth) Sensor (Fig. 116a), PC Interface Data Port (Fig. 116b), and Buttons are free of debris or obstructions.
To Obtain Service: Take your GEO to an Authorized Oceanic Dealer or send it to the nearest Oceanic Regional Distributor Facility (page 173). To return your GEO to Oceanic: Record all dive data in the Log and/or download the data in memory. All data will be erased during factory service. Package it using a protective cushioning material.
As an additional precautionary measure to prevent formation of moisture in the Battery Compartment, it is recommended that the Battery be changed in an environment equivalent to the local outdoor temperature and humidity (e.g., do not change the Battery in an air conditioned environment then take it outside during a hot sunny day). Fig. 117 - BATTERY HATCH REMOVAL (using tool) Inspect the Buttons, Lens, and Housing to ensure they are not cracked or damaged.
Lift the Hatch with O-ring up and away from the Housing. Using care not to damage the Contact (Fig. 119a), slide the Battery up and out of the Left side of the Battery Compartment. Discard the Battery according to local regulations governing disposal of Lithium batteries. CAUTION: DO NOT allow a metal object to short circuit the top of the Battery which is positive (+) to the negative ( - ) contact of the Battery Compartment.
Closely examine the threads of the Battery Hatch and Housing for any signs of damage that might prevent proper threading. Closely examine the inside of the Battery Compartment for any signs of corrosion indicating entrance of moisture into the unit. Fig. 120 - BATTERY INSTALLATION If corrosion is found, return the GEO to an Authorized Oceanic Dealer, and DO NOT attempt to use it until it has received factory service.
NOTE: The Hatch O-ring must be a genuine Oceanic part that can be purchased from an Authorized Oceanic Dealer. Use of any other O-ring will void the warranty. Carefully place the Battery Hatch (with O-ring) into position on the rim of the Battery Compartment, then press it evenly and completely down into place. Fig. 122 - HATCH INSTALLATION (using tool) Maintain the Battery Hatch securely in place and turn it counter clockwise 10 degrees using the special Battery Hatch tool provided (Fig.
ALTITUDE SENSING AND ADJUSTMENT Prior to the first dive of a series of repetitive dives, ALTITUDE (i.e., Ambient Pressure) is measured upon activation of Dive Surface Mode and every 15 minutes until a dive is made or operation reverts to Main Time after 2 hours. > While it is operating in Watch Modes after a dive, measurements are taken > Measurements are only taken when the unit is dry. > Two readings are taken, the second reading 5 seconds after the first.
When the Conservative Factor feature is set ON, allowable dive times are calculated based upon the next higher 3,000 foot (915 meter) Altitude. All adjustments for Altitudes greater than 11,000 feet (3,355 meters) are then made to allowable dive times for 14,000 feet (4,270 meters). If the Conservative Factor is set ON while at Sea Level, calculations are based upon an Altitude of 3,000 feet. The GEO will not function as a Dive Computer above 14,000 feet (4,270 meters).
METRIC NO DECOMPRESSION LIMITS (HOURS:MINUTES) AT ALTITUDE Altitude (meters) 0` 611` to 916` 1221` to 610` to 915` to 1526` 1831` 2136` to 1220` 1525` 1830` to to 2135` 2440` 2441` 2746` 3051` to 2745` to 3356` to to 3050` 3355` 3661` 3966` to 3660` to 3965` 4270` Depth (meters) 9 4:43 3:51 3:37 3:24 3:10 2:58 2:48 2:39 2:31 2:24 2:18 2:12 2:07 12 2:24 2:03 1:52 1:44 1:37 1:30 1:25 1:21 1:17 1:13 1:10 1:07 1:04 15 1:25 1:10 1:06 1:03 1:00 0:57 0:
SPECIFICATIONS CAN BE USED AS Watch Dive Computer (Air or Nitrox) Digital Depth Gauge/Timer Free Dive activity NO DECOMPRESSION MODEL Basis: Modified Haldanean Algorithm 12 tissue compartments Data Base: Diving Science and Technology (DSAT) Rogers/Powell Dive Computer Performance: Tissue compartment halftimes (mins.
SPECIFICATIONS (CONTINUED) Set U Group (Utilities): Wet Activation (On/Off) Units (Imperial / Metric) Safety Stop Time, Depth (Off/3/5 minutes, 10/15/20 FT, 3/4/5/6 M) Conservative Factor (On/Off) Backlight Duration (0/5/10 seconds) Sampling Rate (2/15/30/60 seconds) Factory Settings: On Imperial 3:00 (min:) Off :05 (sec) 15 (sec) Serial Number Factory set actual NORM No Decompression Dive Displays: Main (default) - TLBG, Elapsed Dive Time (hr:min), Dive Time Remaining (hr:min), Current Depth
SPECIFICATIONS (CONTINUED) FREE Dive Displays: Main (default) - Mode graphic FREE, Elapsed Dive Time (min:sec), Dive Time Remaining (hr:min), Depth CDT Status - graphic TIMR (Timer), Timer Setting (On/Off), Countdown Time Remaining (min:sec) Secondary - Day of Week, Temperature, Time of Day (hr:min) NUMERIC DISPLAYS: Dive Number Current Depth Maximum Depth FO2 Set Point PO2 Value Dive Time Remaining Total Ascent Time No Deco Safety Stop Time Decompression Stop Time Norm/Gaug Elaps
SPECIFICATIONS (CONTINUED) BAR GRAPH Tissue Loading Bar Graph: No Decompression zone Decompression zone segments 1 to 4 5 (all) Oxygen (O2) Bar Graph: Normal zone Danger zone segments 1 to 4 5 (all) OPERATIONAL PERFORMANCE Function: Depth Timers Accuracy: ±1% of full scale 1 second per day Dive Counter: NORM/GAUG numbers/displays Dives #1 to 24, FREE numbers Dives #1 to 99, 0 if no dive made yet Resets to Dive #1, upon diving (after 24 hours with no dives) NORM/GAUG Dive Log Mode: S
SPECIFICATIONS (CONTINUED) Power: Battery Shelf life Replacement Use Life 1 - 3 vdc, CR2430, Lithium battery Up to 7 years (when shipped from factory in Deep Sleep mode) User replaceable (annual recommended) 1 year or 300 dive hours if 2 - 1 hour dives per dive day Battery Indicator: Warning - icon on solid < 2.75 volts >2.50 volts, Battery change recommended Alarm - icon on flashing at <= 2.
WARNINGS: Ensure that you know which Operating Mode is selected (NORM, GAUG, or FREE) prior to commencing any dive. Conducting Free dives within a 24 hour period after conducting SCUBA dives, combined with the effects of multiple rapid Free Dive ascents, increases your risk of decompression sickness. Such activities may result in accelerated entry into decompression which could cause serious injury or death.
ERROR (RESET DURING A DIVE) If for any reason, the GEO shuts Off then turns On again for any reason during any Dive, the message ERR (Error) will be displayed with the Up Arrow and current Depth (Fig. 124). If this occurs, it is highly recommended that you terminate the dive and begin a safe ascent to the surface. Fig. 124 -ERROR WHILE DIVING Upon surfacing, and any time thereafter, when access to Dive Computer Operating Mode is attempted from Watch Mode, only the message ERR will be displayed (Fig.
INSPECTION / SERVICE RECORD Serial Number: _________________________________ Firmware Revision: _________________________________ Date of Purchase: Purchased from : ____________ __________________________ Below to be filled in by an Authorized Oceanic Dealer: Date 138 Service Performed Dealer / Technician
OCEANIC WORLD WIDE OCEANIC USA 2002 Davis Street San Leandro, CA 94577 Tel: 510/562-0500 Fax: 510/569-5404 Web site: http://www.OceanicWorldwide.com service@oceanicusa.com Oceanic Central/North Europe Wendelstein, Germany Tel: 09129-9099780 Fax: 09129-9099789 E-mail: office@oceanic.de Oceanic Diving Australia Pty. Ltd Sorrento, Victoria, Australia Tel: 61-3-5984-4770 Fax: 61-3-5984-4307 E-mail: sales@oceanicaus.com.
® OCEANIC USA 2002 Davis Street San Leandro, CA Tel: 94577 510-562-0500 Fax: 510-569-5404 http://www.OceanicWorldwide.com ©2002 Design, 2006 Doc. No.
