Uwatec Xtender User manual
1. Overview p2
1-1. Function Overview p2
1-2. Operation keys p3
1-3. Settings when the system is reset p3
2. Display and Operation
Specifications p4
2-1. LCD Panel Layout p4
2-2. Function of operation keys p4
3. Description of Mode States &
Operation Display p5
3-1. Time mode p5
3-2. Time Set mode p7
3-3. Alarm mode p11
3-4. Alarm Set mode p13
3-5. Dual Time mode p15
3-6. Dual Time Set mode p17
3-7. Dive Plan mode p19
3-8. Dive Set mode p22
3-9. Dive Log mode p25
3-10. History Clear mode p32
3-11. Dive Profile mode p33
3-12. PC Transfer mode p37
3-13. Dive mode p38
3-14. Locked states p54
4. Description of functions common
to all modes p57
4-1. Clock function p57
4-2. Daily alarm / time tone function p58
4-3. Altitude measurement judgment
function p58
4-4. Audible alarms p60
4-5. BLD detection function p62
4-6. Surface interval display function p63
4-7. Desaturation time display
function p63
4-8. PGT level and oxygen limited
indicator display function p63
4-9. Jump function p63
4-10. Auto return function p64
4-11. Display unit selector function p64
4-12. Default setting function p64
1
Contents
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. The functions of the dive computer are outlined below.
•Clock function: internal full-auto calendar clock (with auto leap year recognition
and auto month-end recognition)
• Daily alarm function
• Time tone function
•Dual time function
• 12-hour clock/ 24-hour clock selector function
• EL backlight function
•Dive data functions:
depth measurement
dive time measurement
water temperature measurement
surface interval count
alarms
•Log memory function: Saves and displays logs for up to 30 dives
• History function: Saves and displays the total number of dives (up to 999) and
total dive time (up to 999 hours and 59 minutes)
• Profile function: Saves depths at set times during a dive, and displays
• Profile time (Pt) setting function
•PC download function: Transfers log and profile data to a PC
• Altitude measurement / altitude rank function
• User safety factor (USF) setting function
• m/ft selector function
2
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
3
Item State
Mode Time mode
Time 12:00 00 sec. AM (12-hour clock)
Time (dual time) 12:00 00 sec. AM (12-hour clock)
Daily alarm 12:00 AM (chime: off)
Time tone Off
Ascent rate warning alarm On
Calendar January 1, 2003
Depth 0 m
Altitude rank Determined by measured value
after reset
FO2 setting Air (21%)
Inert gas level (PGT) 0 (none)
Oxygen limit indicator (OLI) 0 (none)
Desaturation time (DESAT) 0 (none)
Profile time (Pt) 30 sec.
User safety factor (USF) 0
Units m / °C (Celsius)
Log memory Continued from before
History memory Continued from before
Profile memory Continued from before
Other data memory All cleared (0)
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).
4
Key Main Function
A key Changes the mode
B key Lock button
C key Changes the column to be adjusted / UP button
D key EL backlight button / DOWN button
E key To Dive mode
Returns from Dive mode (at a depth of 1.4 m or less)
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.
• The demand displays for the dual time clock, DESAT, and surface interval
interfaces appear while the C key is pressed.3-1-1. Display
3-1-2.Key operations
5
<Normal> <Surface Interval State>
<Time Demand display (Normal)> <Time Demand display (Surface Interval)>
Current day of
the week
Current
Month & day
Current time
Time tone flag
Daily alarm
flag Oxygen limited indicator
PGT level Battery
(currently hidden)
Dual
time Mode
indicator
Desaturation
Time
Surface interval
Nitrox flag
Altitude rank
3-1-3.Description of Time mode functions
(1) Clock function
• Keeps time, and displays a calendar and the current time.
(2) Demand display function
• Press the C key to invoke the demand display.
(3) EL backlight function
• The electroluminescent backlight illuminates for 2 to 3 seconds after the C key
or D key is pressed.
• When the C key is entered, the demand display simultaneously appears.
• Continuously pressed and held keys are ignored. (The backlight illuminates for
2 to 3 seconds from the time the key is first pressed.)
• Input from the C and D key is ignored while the backlight is illuminated. (The
6
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
→
D key Backlight on
→
C & D key Alarm test
→
E key: water detection switch
To Dive mode
→
E key (when BLD is detected,
an altitude rank error occurs,
locked in the decompression
stop violation state, locked in
the out-of-range state)
Invalid (audible alarm
sounds while ON)
→
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.
(5) Lock state reset function
•In the out-of-range lock state and decompression stop violation lock state,
simultaneously press and hold the C key and D key for 15 seconds to clear the
lock state and access the normal state.
3-2. Time Set mode
• Time Set mode is used to set the current time, the current date, and the time
format (12- or 24-hour clock).
• Time Set mode cannot be accessed until a surface interval of at least 10
minutes has elapsed.
3-2-1.Display
3-2-2.Key operations
7
3-2-3.Description of Time Set mode functions
(1) Selecting columns to be adjusted
• Press the C key to select the column to be adjusted.
8
Current year
Current time
(reset digit flashes)
Current
month & day
Key Entry
/State
Set
Seconds
Set MInutes Set Hour Set Ye a r Set Month Set Day Set Time
Format
A key Invalid
→→→→→→
B key To Time
mode
→→→→→→
Ckey
To
minute
setting
To hour
setting
To year
setting
To month
setting
To d ay
setting
To clock
format
setting
To seconds
setting
Dkey Reset 00–59
MInute
setting
0–23
Hour
setting
2003-2050 Year
setting
1–12 Month
setting
Day
setting
Toggle
between 12h
& 24h
D key
pressed Invalid
Minute setting
(Fast-forward)
Hour setting
(Fast-forward)
Year setting
(Fast-forward)
Month setting
(Fast-forward)
Day setting
(Fast-forward)
Invalid
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