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Oceanic GEO Operating Manual

Other manuals for GEO: Operating Manual
Manual is about: Watch

Summary of GEO

  • Page 1

    Geo watch / dive computer operating manual.

  • Page 2: Full Lcd

    2 full lcd 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...

  • Page 3

    3 contents full lcd .............................................................................................................................................................. 2 warranty, notices, decompression model ...................................................................................

  • Page 4

    4 contents (continued) dive computer surface sequence and operating modes ............................................................. 37 dc operating modes ................................................................................................................................. 38 surface m...

  • Page 5

    5 contents (continued) overview of dive mode information ...................................................................................................... 71 displayed symbols and icons ................................................................................................................

  • Page 6

    6 contents (continued) free dive operating mode ....................................................................................................................... 105 free surface mode .................................................................................................................

  • Page 7

    7 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, transla...

  • Page 8

    8 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. However, they ...

  • Page 9

    9 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 and general features and displays.

  • Page 10

    10 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 a...

  • Page 11

    11 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. The m button is used to access 4 other modes that include alternate time mode, countdown timer, chr...

  • Page 12

    12 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. Entering ...

  • Page 13

    13 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 i...

  • Page 14

    14 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. It will turn off when...

  • Page 15

    15 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...

  • Page 16

    16 note: extensive use of the backlight reduces estimated battery life. Also, the backlight does not operate during a low battery condi- tion or when the geo is connected to a pc. Power supply the geo utilizes one 3 volt cr2430 lithium battery. When used as a dive computer, the battery should operat...

  • Page 17

    17 watch features and displays 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..

  • Page 18

    18 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 presses (less than 2 seconds each) of the m button is - main time > alternate time > countdown timer >...

  • Page 19

    19 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 alter- nate). Main time, information displayed includes: > ti...

  • Page 20

    20 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 da...

  • Page 21

    21  pressing the a button momentarily ( 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 ( time) will step through the time/date settings, bypassing those that don't require setting. Set hour and minute the...

  • Page 22

    22 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...

  • Page 23

    23  pressing and releasing the a button momentarily ( seconds) will save the set point and/or advance to the main time screen. Note: day of the week is set automatically based upon the date that has been set. Alternate time  pressing and releasing the m button momentarily ( seconds) while the main...

  • Page 24

    24  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 mo...

  • Page 25

    25 if no button is pressed during a period of 2 minutes, the unit will revert to the main time screen. Watch countdown timer (hr:min) pressing the m button momentarily 2 times ( while the local default time screen is displayed will access the countdown timer screen, displaying the remaining count- d...

  • Page 26

    26  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 loca...

  • Page 27

    27 chronograph (stop watch/lap timer)  pressing and releasing the m button momentarily 3 times ( 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 ( se...

  • Page 28

    28  pressing and releasing the m button momentarily ( 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. I...

  • Page 29

    29 > 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 revert to t...

  • Page 30

    30  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 ( seconds) will save the minute set point and/or advance to the daily...

  • Page 31

    31 dive computer features and displays 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..

  • Page 32

    32 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 decom- pression or decompression status. As your de...

  • Page 33

    33 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 s...

  • Page 34

    34 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 (described later) are...

  • Page 35

    35 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 lo...

  • Page 36

    36 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 messag...

  • Page 37

    37 dive computer surface sequence and operating modes 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..

  • Page 38

    38 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. ...

  • Page 39

    39  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 ope...

  • Page 40

    40 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 load...

  • Page 41

    41 norm surf main - button operations:  pressing the l button will activate the backlight.  repeat press/release of the a button ( 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 su...

  • Page 42

    42 norm surf alternate, information includes (fig. 34): > bar graph with the graphic o2bg, representing oxygen accumulation. > fo2 set point with fo2 icon. > nx icon.  the display will revert to the norm surf main screen after 5 seconds unless the a button is pressed.  pressing and releasing the a...

  • Page 43

    43 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 re- peated simultaneous 2 second presses of the a and s buttons. Set a (alarms) and set u (utilities) set points can also be set/ ch...

  • Page 44

    44 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, ...

  • Page 45

    45 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 ni...

  • Page 46

    46  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.  the scroll will stop when the button is released, or momentarily at 32% (even if the button is held depressed).  depr...

  • Page 47

    47 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. > set a settings remain at the values set until changed. > depressing the a and s buttons simultaneously for 4 seconds whil...

  • Page 48

    48  pressing and releasing the s button ( toggle between on and off.  pressing and releasing the a button momentarily ( 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 ( other ...

  • Page 49

    49  pressing and releasing the a button momentarily ( 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 ( other set a screens.  pressing the a and s buttons simultaneously for 2 se...

  • Page 50

    50  pressing and releasing the a button momentarily and repeatedly ( 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 min...

  • Page 51

    51  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. Set norm dt...

  • Page 52

    52  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. Set norm po2 alarm, information includes (fig. 46): > graphics po2 and ata with max icon. > set point value (x.Xx ata) flashing, wit...

  • Page 53

    53 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...

  • Page 54

    54 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 on and off.  pressing and releasing the a button momentarily ( seconds) will save the setting and/or advance to the set units scre...

  • Page 55

    55  pressing and releasing the a button momentarily ( 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 ( each time) will step through the other set u screens.  depressing the a and s buttons simu...

  • Page 56

    56  pressing and releasing the a button momentarily ( safety stop settings and/or advance to the set cons screen with the set point flashing.  pressing the a button momentarily and repeatedly ( through the other set u screens.  depressing the a and s buttons simultaneously for 2 seconds will save...

  • Page 57

    57  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 ...

  • Page 58

    58 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 ( seconds) will step through the set points of 2, 15, 30, 60 (seconds).  pressing and releasing the a button ( a...

  • Page 59

    59  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 ...

  • Page 60

    60  while the plan lead-in screen is displayed, pressing and releasing the s button momentarily and repeatedly ( 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. The pdp...

  • Page 61

    61 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 ( to access the first screen (30 ft/9 m) of the pdps. Pdps, inf...

  • Page 62

    62 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. Ac...

  • Page 63

    63  pressing and releasing the a button momentarily ( to sat mode.  depressing and holding the m button for 2 seconds will revert to the norm (or gaug) surf main screen.  if no button is pressed during a 2 minute period, operation will revert to the norm (or gaug) surf main screen.  pressing the...

  • Page 64

    64  depressing and releasing the a button momentarily and repeatedly 3 times ( 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 co...

  • Page 65

    65 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 ...

  • Page 66

    66 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 alte...

  • Page 67

    67 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 sur...

  • Page 68

    68  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...

  • Page 69

    69 norm/gaug history mode history mode displays accumulative information for up to 9999 dives, 9999 dive hours, and the maximum depth achieved. History information is retained indefinitely. Battery removal will not affect the history data stored for viewing.  10 minutes after a non violation norm d...

  • Page 70

    70  pressing and releasing the a button momentarily ( 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 ...

  • Page 71

    71 overview of dive mode information 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..

  • Page 72

    72 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 ta...

  • Page 73

    73 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 accumula- tion. The dive time remaining display will indicate the no deco time or o2 time,...

  • Page 74

    74 the algorithm used is based upon haldane’s 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. Diving science and technology ® (dsat), a corporate ...

  • Page 75

    75 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...

  • Page 76

    76 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, display- ing the main time screen. Control of ...

  • Page 77

    77 norm type dive modes 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..

  • Page 78

    78 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 sense...

  • Page 79

    79 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 operat...

  • Page 80

    80 norm no deco dive alt display, information pro- vided includes (fig. 71) - > bar graph representing o2 accumulated with graphic o2bg, if fo2 is set for nitrox. > max depth with max and ft (or m) icons. > fo2 set point with fo2 icon, if fo2 is set for nitrox. > po2 (x.Xx ata) with po2 icon, if fo2...

  • Page 81

    81 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 safet...

  • Page 82

    82 no deco safety stop alt 1 display, information in- cludes (fig. 74) > tlbg representing nitrogen loading. > graphics safe, stop, and xxf or xxm (value of the stop depth set) scrolling at the top. > current depth with ft (or m) icon. > dive time remaining (hr:min) with time and ndc (or o2) icons. ...

  • Page 83

    83 decompression dive mode the geo is designed to help you by providing a representa- tion 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 sou...

  • Page 84

    84 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 slow...

  • Page 85

    85 deco stop alt 1 display, information provided includes (fig. 79) - > tlbg, all 5 segments indicating deco. > graphic message deco > stop > xxf (or xxm), scrolling, indicating the stop depth required. > current depth with ft (or m) icon. > total ascent time (hr:min) with time and tat icons. > elap...

  • Page 86

    86 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). > temperature with degrees icon and graphic f (or c).  the display will revert to the main display after 5 seconds or i...

  • Page 87

    87 no off gassing credit will be given while above a required stop depth, and for each minute above it 1 1 / 2 minutes of 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 gassin...

  • Page 88

    88 delayed violation #2 (fig. 84) the geo cannot calculate decompression times for stop depths much greater than 60 ft (18 m) and offers no indica- tion 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 bet...

  • Page 89

    89 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 ce...

  • Page 90

    90 the geo will also enter an immediate violation mode (viola- tion 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 w...

  • Page 91

    91 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...

  • Page 92

    92 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 ...

  • Page 93

    93 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...

  • Page 94

    94 (this page intentionally left blank.).

  • Page 95

    95 norm post dive modes 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..

  • Page 96

    96 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 ...

  • Page 97

    97 to view that dive's log during the transition period -  press/release the a button ( preview screen (fig. 91).  press/release the s button ( data 1 screen.  press/release the s button ( log data 2 screen.  press/release the s button ( log data 3 screen.  press/release the s button ( the norm...

  • Page 98

    98 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 previ...

  • Page 99

    99 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 settin...

  • Page 100

    100 pc compatibility requirements:  ibm ® , or compatible, personal computer with usb port  intel ® pentium 200 mhz or better microprocessor  microsoft ® windows ® 98 second edition, me, nt, 2000, or xp  super vga card or compatible video graphics adaptor (256 color or greater) with a minimum 80...

  • Page 101

    101 gauge operating mode 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..

  • Page 102

    102 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 ea...

  • Page 103

    103  press/release the a button to access fly, log, and history.  depress/hold the a button for 2 seconds to view the secondary display.  depress/hold the a and s buttons simultaneously for 2 seconds to access the set menu (f > a > u).  press the l button to activate the backlight. When gaug ope...

  • Page 104

    104 gaug dive alt display, information provided includes (fig. 95) - > 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 display.  the display will revert to the main display after 5 se...

  • Page 105

    105 free dive operating mode 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..

  • Page 106

    106 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 mode...

  • Page 107

    107  press the l button to activate the backlight.  depress the a button for 2 seconds to access the free surf alt display from which you can access the secondary display .  press/release the a button momentarily ( access the free surf cdt (countdown timer) status display allowing you to set/star...

  • Page 108

    108 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). > temperature with...

  • Page 109

    109  press/release the s button momentarily ( toggle between on and off. > if a time has been set, a toggle from off to on will start the cd timer indicated by the colon flashing. > an on/off toggle is prevented when s is operated to acknowledge/silence the watch daily alarm.  pressing the a butto...

  • Page 110

    110 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) - > graphic timr, solid. > timer setting (min:sec) with the time icon, colon solid, minute set point flashing. > graphic se...

  • Page 111

    111  pressing the a button momentarily ( the m button for 2 seconds, or if no button is pressed during a period of 2 minutes, the display will revert to the free surf main screen. Free edt (elapsed dive time) alarm the free edt alarm is factory set for 30 seconds. When set on, the alarm will sound ...

  • Page 112

    112  pressing/releasing the s button momentarily ( point between off and on.  pressing/releasing the a button momentarily ( and access the set free depth alarm 1 screen.  depressing the m button for 2 seconds, or if no button is pressed during a period of 2 minutes, the display will revert to the...

  • Page 113

    113 set free depth alarm 1 (fda1) display, information provided includes (fig. 104) - > graphic fda1. > depth alarm value, flashing if on is displayed, with max and ft (or m) icons. > set point on or off, flashing.  pressing/releasing the s button momentarily ( will toggle the set point between on ...

  • Page 114

    114  depressing the m button for 2 seconds, or if no button is pressed during a period of 2 minutes, the display will revert the free surf main screen. Set free depth alarm 2 (fda2) display, information provided includes (fig. 105) - > graphic fda2. > depth alarm value, flashing if on is displayed,...

  • Page 115

    115  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 ( depth setting and advance to set fda 3.  depressing the m button for 2 seconds, or if no button is pressed during a period of 2 minut...

  • Page 116

    116  pressing/releasing the s button momentarily and repeatedly ( 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 unt...

  • Page 117

    117 free dive cdt status display, information provided in- cludes - > 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 dis...

  • Page 118

    118 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) when depth reaches the free depth alarm 1 set poi...

  • Page 119

    119 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 indi- cated by 4 segments displayed as t...

  • Page 120

    120 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 ga...

  • Page 121

    121 reference 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..

  • Page 122

    122 care and cleaning protect your geo from shock, excessive temperatures, expo- sure 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 ...

  • Page 123

    123 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.  pack...

  • Page 124

    124 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 tak...

  • Page 125

    125  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 a...

  • Page 126

    126  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.  if corrosion is found, return the geo to...

  • Page 127

    127 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 completel...

  • Page 128

    128 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 ...

  • Page 129

    129 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 conse...

  • Page 130

    130 metric no decompression limits (hours:minutes) at altitude altitude 0` 611` 916` 1221` 1526` 1831` 2136` 2441` 2746` 3051` 3356` 3661` 3966` (meters) to to to to to to to to to to to to to 610` 915` 1220` 1525` 1830` 2135` 2440` 2745` 3050` 3355` 3660` 3965` 4270` depth (meters) 9 4:43 3:51 3:37...

  • Page 131

    131 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 halftime...

  • Page 132

    132 set u group (utilities): factory settings: wet activation (on/off) on units (imperial / metric) imperial safety stop time, depth (off/3/5 minutes, 10/15/20 ft, 3/4/5/6 m) 3:00 (min:) conservative factor (on/off) off backlight duration (0/5/10 seconds) :05 (sec) sampling rate (2/15/30/60 seconds)...

  • Page 133

    133 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: rang...

  • Page 134

    134 specifications (continued) bar graph tissue loading bar graph: segments oxygen (o2) bar graph: segments no decompression zone 1 to 4 normal zone 1 to 4 decompression zone 5 (all) danger zone 5 (all) operational performance function: accuracy: depth ±1% of full scale timers 1 second per day dive ...

  • Page 135

    135 power: • battery 1 - 3 vdc, cr2430, lithium battery • shelf life up to 7 years (when shipped from factory in deep sleep mode) • replacement user replaceable (annual recommended) • use life 1 year or 300 dive hours if 2 - 1 hour dives per dive day battery indicator: warning - icon on solid 2.50 v...

  • Page 136

    136 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 ...

  • Page 137

    137 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. Upon sur...

  • Page 138

    138 inspection / service record serial number: _________________________________ firmware revision: _________________________________ date of purchase: ____________ purchased from : __________________________ below to be filled in by an authorized oceanic dealer: date service performed dealer / tech...

  • Page 139

    139 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 so...

  • Page 140

    Oceanic® usa 2002 davis street san leandro, ca 94577 tel: 510-562-0500 fax: 510-569-5404 http://www.Oceanicworldwide.Com ©2002 design, 2006 doc. No. 12-2734-r01 (10/20/06).