Uwatec Xtender Instruction Manual
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Uwatec Xtender Instruction Manual

Uwatec Xtender Instruction Manual

Wrist dive computer
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  • Page 3: Table Of Contents

    Contents 1. Overview 4. Description of functions common to all modes 1-1. Function Overview 4-1. Clock function 1-2. Operation keys 1-3. Settings when the system is reset p3 4-2. Daily alarm / time tone function 4-3. Altitude measurement judgment 2. Display and Operation function Specifications 4-4.

  • Page 4: Overview

    1. Overview 1.1 Function Overview Xtender is a mobile dive computer for underwater diving that measures depth during dives and, based on the measured values, calculates and dis- plays a variety of dive data, including such critical data as a diver's body oxygen level and the level of nitrogen that has dissolved into the diver's body.

  • Page 5: Operation Keys

    1-2. Operation keys • There are four keys for user operations: the A key, B key, C key, and D key. • The E key serves as a water detection switch. 1-3. Settings when the system is reset Item State Mode Time mode Time...

  • Page 6: Display And Operation Specifications

    2. Display and Operation Specifications 2-1. LCD Panel Layout 2-2. Function of operation keys • Operations are performed with the push-keys (the A key, B key, C key, and D key) and the water detection switch (E key). Main Function A key Changes the mode B key...

  • Page 7: Description Of Mode States & Operation Display

    3. Description of Mode States & Operation Display 3-1. Time mode • Time mode is the default state during normal use and during surface intervals. • All display segments flash when the dive computer is locked in the out-of- range state or when it is locked in the decompression stop violation state. •...
  • Page 8 3-1-3. Description of Time mode functions Key Entry / State Time Surface interval of under 10 minutes ¡ A key To Alarm mode B key To Time Set mode Invalid (audible alarm) C key pressed Time demand display ¡ and backlight on ¡...

  • Page 9: Time Set Mode

    backlight goes off 2 to 3 seconds after the key is first pressed.) • If a mode changing key is pressed while the backlight is on, the backlight immediately goes off and the selected mode is invoked. (4) Alarm test function •Simultaneously press the C key and D key to test the audible alarm.
  • Page 10 3-2-3. Description of Time Set mode functions Current month & day Current year Current time (reset digit flashes) (1) Selecting columns to be adjusted • Press the C key to select the column to be adjusted. Key Entry Set MInutes Set Hour Set Year Set Month...
  • Page 11 Key Entry Set Seconds Set Year Set Day /State MInutes Hour Month Time Format C & D key Fully illuminat- ¡ ¡ ¡ ¡ ¡ ¡ ed display No key operated To Time mode ¡ ¡ ¡ ¡ ¡ ¡ for 2–3 minutes E key: water detec- To Dive mode...
  • Page 12 minute column shows 59 minutes, a one is added to the number in the hour column.The day, month, and year columns are similarly increment- ed. For example, if the seconds column is reset on December 31, 2003, at 23 hours, 59 minutes, and 45 seconds, the time will change to January 1, 2004, 0 hours, 0, minutes, 0 seconds.

  • Page 13: Alarm Mode

    d) Adjusting the year display The year can be set from 2003 up to 2050. (After passing 2050, the year display loops back to 2003.) Leap years are automatically detected. (3) Carrying of numbers during adjustments • Numbers are carried over normally. •...
  • Page 14 Time tone flag (currently hidden) Daily alarm clock Mode character Daily alarm display flag 3-3- Mode Current time indicator NItrox flag operations Key Entry / State Alarm Mode A key To Dual Time mode To Time mode after key operation *1 B key To Alarm Set mode C key...

  • Page 15: Alarm Set Mode

    3-3-3. Description of Alarm mode functions (1) Daily alarm/time tone setting function • Pressing the C key switches the daily alarm and time tone ON/OFF. (Daily alarm : Time tone) = (OFF:OFF) ¡ (ON:OFF) ¡ (OFF:ON) ¡ (ON:ON) ¡ (OFF:OFF) ¡ …(loop) •...
  • Page 16 3-4-2. Key operations Key Entry / State Daily Alarm Daily Alarm Minute column setting Hour column setting ¡ A key Invalid ¡ B key To Alarm mode C key To daily alarm hour To daily alarm minute column setting column setting D key 00 –...

  • Page 17: Dual Time Mode

    (2) Adjustment method • A value of 1 is added each time the D key is pressed. • Adjustments are speeded up if the D key is held down for 1 to 2 seconds. • If the daily alarm is OFF at the time the daily alarm clock setting is changed, the daily alarm is automatically turned ON.
  • Page 18 3-5-2. Key operations Surface Interval Key Entry/State Dual Time When Locked of Under 10 min. A key To Dive Plan mode To Dive Log mode ¡ To Time mode To Time mode after key operation after key operation B key To Dual Time Set Invalid To Dual Time Set...

  • Page 19: Dual Time Set Mode

    (2) Dual time selector function • Press the C key to toggle between the time zones (dual times). • If the surface interval is less than 10 minutes, dual time cannot be switched, and an alarm sounds when the C key is ON. 3-6.
  • Page 20 3-6-2. Key operations Key Entry / State Dual Time Set A key Invalid B key To Dual Time mode C key Dual time clock UP (30 min) C key pressed and held Dual time clock UP (fast-forward) D key Dual time clock DOWN (30 min) D key pressed and held Dual time clock DOWN (fast-forward) No key operated for 2 - 3 minutes...

  • Page 21: Dive Plan Mode

    be added and all C key entries are ignored. (There is no particular beep or other sound to indicate when C key entries are being ignored.) • Time loops between December 31, 2050 and January 1, 2003. • Hold down either the C key or the D key to speed up (fast-forward) adjust- ments.
  • Page 22 3-7-2. Key operations Surface Interval Key Entry / State Dive Plan of Under 10 min. A key To Dive Log mode ¡ To Time mode after key operation B key To Dive Set mode Invalid (audible alarm) However, if FO2 is in the default state, Dive Set mode can be accessed B key pressed and held...
  • Page 23 3-7-3. Description of Dive Plan mode functions (1) Depth rank selection function • Each time the C key is pressed, 3 m (10 ft) is added [from 9 m (30 ft) up to 48 m (160 ft)]. 9 m (30 ft) ¡ 12 m (40 ft) ¡ ¡ 45 m (150 ft) ¡ 48 m (160 ft) (no loop) •...

  • Page 24: Dive Set Mode

    temperature display units between meters and degrees Celsius (m & °C) and feet and degrees Fahrenheit (ft & °F). (The default setting is m & °C). • The Dive Set mode screen appears once the B key is pressed. The unit display changes if the B key is held down continuously.
  • Page 25 3-8-1. Display Pt Setting FO2 Setting USF Setting PO2 Max. Depth Mode indicator 3-8-2. Key operations Key Entry FO2 Setting User Safety Factor Profile Time (Pt) (USF) Setting Setting ¡ ¡ A key Invalid ¡ ¡ B key To Dive Plan mode C key To USF setting To Pt setting...
  • Page 26 Key Entry FO2 Setting User Safety Factor Profile Time (Pt) (USF) Setting Setting No key operated To Time mode ¡ ¡ for2 - 3 minutes E key: water detec- To Dive mode ¡ ¡ tion switch E key (when BLD is Invalid (audible ¡...

  • Page 27: Dive Log Mode

    • Press the D key from the default state to invoke the Air setting. • When FO2 is set to any percentage from 22% to 99%, the NX flag lights up when the dive computer is in Time mode, Alarm mode, Dual Time mode, Dive Plan mode, Dive Set mode, or Dive mode.
  • Page 28 3-9-1. Display <History Display> <Screen 1> Dive number Total number Mode character of dives Indicator Dive date Total dive time Log number (hours) Altitude rank Dive start Unit indicator time Mode Total dive time indicator (minutes) <Screen 2> <Screen 3> Dive time Average depth Lowest...
  • Page 29 3-9-2. Key operations Key entry Dive Log *1 Surface Interval of No log data, under 10 min. EEPROM error A key To Dive Profile mode ¡ ¡ To Time mode after key operation B key To History Clear mode Invalid Invalid when pressed while the (Audible alarm...
  • Page 30 3-9-3. Description of Dive Log mode functions (1) Memory recall function • The following history data and log data saved in Dive mode are displayed: Total number of dives Lowest water temperature Total dive time Log number FO2 concentration PGT level at end of dive Dive date Oxygen limit indicator at end of dive Altitude rank at dive start...
  • Page 31 • History data and log data are saved in memory if the diver descends to a depth of 1.5 m (5 ft) or more and stays at that depth for 3 minutes or more when the dive computer is in Dive mode. •...
  • Page 32 Ex. 1) If Screen 2 of log number 5 is displayed, then the dive computer moves as follows: 5-2 ¡ 5-1 ¡ 4-1 ¡ 3-1 ¡ 2-1 ¡ 1-1 Ex. 2) If Screen 3 of log 17 is displayed, the dive computer moves as follows: 17-3 ¡...
  • Page 33 • PO2 warning. If a PO2 warning is issued even one time, a PO2 warning is saved in memory and the PO2 flag flashs when the log is displayed. • OLI warning. If the OLI reaches 8 even one time, an OLI warning is saved in memory and the OLI flag flashs when the log is displayed.

  • Page 34: History Clear Mode

    3-10. History Clear mode • History Clear mode individually deletes history data (total number of dives and total dive times). • History Clear mode cannot be accessed if the surface interval is less than 10 minutes, if there is no log data, or if an EEPROM access error has occurred. 3-10-1.

  • Page 35: Dive Profile Mode

    3-10-2. Key operations Key Entry / State History Clear A key Invalid B key To Dive Log mode history screen C key is pressed & held Clear total number of dives for 4 - 5 sec. D key is pressed & held Clear total dive time for 4 - 5 sec.
  • Page 36 • Profile data is saved sequentially for each log. The dive computer holds profile data for a maximum of 30 dives. If more dives are performed, or if the memory becomes full, the oldest data is cleared from memory. 3-11-1. Display Log date Dive time display Log number...
  • Page 37 3-11-2. Key operations Key Entry Dive Profile Surface Interval No log data, of under 10 min. EEPROM error Every 2 seconds. Display changes (DIVE.T Bar display ¡ count increases) ¡ ¡ A key To Time mode B key To PC Transfer mode Invalid (audible Invalid alarm)
  • Page 38 3-11-3. Description of Dive Profile mode functions (1) Memory recall function • Displays depth data and dive time saved in Dive mode at intervals determined by the profile time set. • The following log data is also displayed in the log saved in that profile. (Data limits are the same as those in Dive Log mode.) 0 FO2 0 Log No.

  • Page 39: Pc Transfer Mode

    3-12. PC Transfer mode • A mode in which dive computer data can be transferred between a PC and the dive computer. • PC Transfer mode cannot be accessed if the surface interval is less than 10 minutes, if there is no log data, or if an EEPROM access error has occurred. •...

  • Page 40: Dive Mode

    3-12-3. Description of PC Transfer mode functions (1) PC transfer function • Transfers data from the dive computer to a PC, or from a PC to the dive computer. 3-13. Dive mode • A mode that indicates conditions during a dive, Dive mode includes the non- decompression state, the decompression state, Safety Stop state, and the out- of-range state.
  • Page 41 3-13-1. Display <No-decompression Dive State> <Safety Stop State> Non-decompression Flashing limit Dive time level Safety stop time indicator Current Current depth depth Oxygen limit indicator NITROX flag <Decompression Dive State> Flashing Decompression stop time Decompression stop depth Total ascent time PGT level = 9 PO2 display Daily alarm flag...
  • Page 42 <Dive Demand A> <Dive Demand C> Flashing Current water temp. Dive time Current time Max. depth 3-13-2. Key operations Key Entry / State Non-decompression Decompression dive state, dive state decompression stop violation state A key pressed and Dive Demand A and ¡...
  • Page 43 3-13-3. Description of Dive mode functions < Functions common to all states > (1) EL backlight function • In Dive mode, pressing the A key, C key, or D key causes the backlight to come on for 2 to 3 seconds. (The A key and C key also invoke the demand display at this time.) •...
  • Page 44 • Measurement stop: counting continues until the log is finalized upon the elapse of a 10-minute surface interval. • A dive time of 3 minutes or more is considered to be one dive, and the dive number is incremented by a value of 1. At this point, log data can be saved in memory.
  • Page 45 (8) PO2 indicator function • Displays the PO2 level. • The PO2 indicator appears only if the FO2 setting has been set to 22% or higher (nitrox), and when FO2 setting is Air, the display does not appear. • The display appears at a depth of 1.5 m or greater and disappears at a depth of 1.4 m or less.
  • Page 46 beyond the measureable range, the total dive time will be saved in the history as 600 minutes. • If the total number of dives has exceeded 999, then the counter rolls over from 999 back to 0 ¡ 1 and the data is saved. •...
  • Page 47 mode when the E key is OFF and the depth is 1.4 m or less, the lock state is reset, and the same processing is performed as when a surface interval of 48 hours has elapsed. (This reset operation also works even if the surface interval is less than 10 minutes.) •...
  • Page 48 • While PO2 is 1.4 or 1.5, the PO2 flag stays continuously lit. • If PO2 reaches or exceeds 1.6, an audible alarm sounds twice, for three sec- onds each time, and the PO2 value, PO2 flag, and OLI bar graph (all 8) flash. Flashing continues until the PO2 falls back to 1.5 or less.
  • Page 49 at 1.5 m or more and stays in Dive mode even after the water detection switch is turned OFF. Since leaving Dive mode requires an ascent to an altitude of 1400 m or less versus the measured altitude, the reset function was enabled. Dive information at the time a reset is performed is not logged.
  • Page 50 a 3-minute safety stop will begin after a decompression stop at 3 m is finished. • If the dive computer is set to display feet, the safety stop clock starts at a depth of 20 ft. <Functions in the decompression dive state> •...
  • Page 51 • If a decompression stop violation warning is issued even once, the decompression stop violation is saved in log data. • When the dive computer is in the decompression stop violation state, even if a depth of 1.4 m or less is detected and the dive computer detects that the E key is OFF, the display will continue to indicate a decompression stop violation (until the log is finalized).
  • Page 52 Ascent rate warning If the ascent rate is too rapid, the diver is notified by a display such as that shown below and by an audible alarm. The display and alarm continue until the diver returns to a safe ascent rate or reaches a depth of 1.4 m or less. If two consecutive ascent rate warnings are issued, the warnings are logged.
  • Page 53 If the current depth is shallower than the indicated decompression stop depth, the diver is notified by a display such as that shown below and by an audible alarm. The display and alarm stop if the diver returns to or below the indicated depth. If the diver does not return to the indicated depth, the warning continues, and if the diver ascends, the display is locked when the log is finalized.
  • Page 54 When the oxygen limited indicator (an indicator of the calculated body oxygen level) reaches 7, the OLI bar graph (7 bars) flashes for 15 seconds and an audible alarm sounds twice, for three seconds each time. When the oxygen limited indicator reaches 8, an audible alarm sounds twice, for three seconds each time, and the OLI bar graph (8 bars) stays continuously flashed until the OLI level reaches 7.
  • Page 55 When the FO2 is air, the PO2 indicator and PO2 warning are not invoked, but if the FO2 is 22% or greater (including when in the default state), the PO2 indicator and PO2 warning are invoked. The PO2 warning has two stages. When PO2 increases to 1.4 or 1.5, the PO2 value and PO2 flag flash for 15 seconds, and an audible alarm sounds twice, for three seconds each time.

  • Page 56: Locked States

    When the E key comes ON and causes Dive mode to be accessed while the FO2 setting is in the default state, an alarm sounds twice, for three seconds each time. Default warnings are not saved in the log. 3-14. Locked states The NX flag flashes and an audible alarm sounds twice, for 3 seconds each time.
  • Page 57 3-14-1. Display < Out-of-Range Lock State > < Decompression Stop Violation Lock State > Fully flashing display Nine PGT bars + DECO flag...
  • Page 58 3-14-2. Key operations Key Entry / State Decompression stop violation lock state (PGT1 – 9 and DECO flags lit), and out-of-range state locked *1 A key Changes the mode *2 To Time mode after key operation However, Dive Plan mode is skipped and cannot be accessed.

  • Page 59: Description Of Functions Common To All Modes

    4. Description of functions common to all modes 4-1. Clock function 4-1-1. Hours, minutes, seconds • The time is displayed in hours, minutes, and seconds in either the 12-hour clock format or the 24-hour format. • Time is carried over as shown in the following table. 12-Hour Clock Display 24-Hour Clock Display PM 11:59(59)

  • Page 60: Altitude Measurement Judgment Function

    4-1-2. Calendar • The day rolls over when the clock rolls over from 23:59 (59) to 0:00(00). • Month end January, March, May, July, August, October, December: 31 days April, June, September, November: 30 days February: 28 days (29 days in a leap year) 4-1-3.
  • Page 61 • Altitude ranks and altitudes are displayed as shown in the following table. Altitude Rank Altitude Altitude Rank Display 1000 m or less None 700 – 1800 m Lights at rank 1 1500 – 2600 m Lights at rank 2 2300 –...

  • Page 62: Audible Alarms

    4-4. Audible alarms Function Conditions Alarm Time Time tone Sounds every hour on the hour while the time Time tone tone setting is ON Daily alarm Sounds at the set alarm clock time when the Audible alarm alarm setting is ON Normal: 20 sec.
  • Page 63 Function Conditions Alarm Time OLI warning • When OLI increases and reaches 7 • When OLI reaches 8 PO2 warning • When PO2 increases and reaches 1.4, 1.5 Audible alarm for • When PO2 reaches 1.6 3 sec. x 2 Default warning Sounds when Dive mode is accessed when FO2 is - -%...

  • Page 64: Bld Detection Function

    after the alarm starts for it to be turned off. Turning off the alarm also causes the flag to stop flashing and become solidly lit. * Alarms in Dive mode stop when both a depth of 1.4 m or less is reached and the E key goes OFF.

  • Page 65: Surface Interval Display Function P63

    4-6. Surface interval display function • After accessing Time mode from Dive mode, the display is invoked by a time demand. • Measurement range: 0:00 – 48:00 • One minute after the elapse of 48:00, a bar display "- -:- -" appears. •...

  • Page 66: Auto Return Function

    ing the A key after any of the other keys has been pressed (for example, after the B key was pressed to return from the set mode, after the C key was pressed to change a setting, or after the D key was pressed to turn on the backlight) while in Alarm mode, Dual Time mode, Dive Plan mode, or Dive Log mode (modes other than Time mode and Dive mode).
  • Page 70 SCUBAPRO UWATEC 1166 Fesler Street El Cajon, CA 92020 619/402-1023 www.scubapro-uwatec.com 10/04 © 2004 by Johnson Outdoors Inc.

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