Aeris A300 XT Manuale utente
1
A300/A300 XT OPERATING MANUAL
© 2002 Design, 2012 Doc. No. 12-7255-r01 (5/14/12)
A300
with FREE DIVE MODE
A300 XT
with ANALOG PRESSURE GAUGE
DIVE COMPUTER
OPERATING MANUAL
2
A300/A300 XT OPERATING MANUAL
© 2002 Design, 2012 Doc. No. 12-7255-r01 (5/14/12)
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A300/A300 XT OPERATING MANUAL
© 2002 Design, 2012 Doc. No. 12-7255-r01 (5/14/12)
NOTICES
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 AERIS/2002 Design.
A300 / A300 XT Operating Manual, Doc. No. 12-7255
© 2002 Design, 2012
San Leandro, CA USA 94577
TRADEMARK, TRADE NAME, AND SERVICE MARK NOTICE
AERIS, the AERIS logo type, A300, A300 XT, the A300 logo, the A300 XT logo, Diver Replaceable Batteries, Graphic Diver Interface, Tissue Loading Bar Graph (TLBG), Pre Dive Planning Sequence (PDPS),
Set Point, Control Console, and ACI (AERIS Computer Interface) are all registered and unregistered trademarks, trade names, and service marks of AERIS. All rights are reserved.
PATENT NOTICE
U.S. Patents have been issued, or applied for, to protect the following design features: Data Sensing and Processing Device (U.S. Patent no. 4,882,678), Ascent Rate Meter (U.S. Patent no. 5,156,055),
Scuba Air Device (U.S. Patent no. 6,201,478). Other patents pending. User Setable Display (U.S. Patent no. 5,845,235) is owned by Suunto Oy (Finland).
LIMITED TWO-YEAR WARRANTY
For details, refer to the Product Warranty Registration Card provided. Register on-line at www.diveaeris.com
DECOMPRESSION MODEL
The programs within the A300 and A300 XT simulate the absorption of nitrogen into the body by using a mathematical model. This model is merely a way to apply a limited set of data to a large range of
experiences. The dive computer model is based upon the latest research and experiments in decompression theory. Still, using the A300 or A300 XT, just as using the U.S. Navy (or other) No
Decompression Tables, is no guarantee of avoiding decompression sickness, i.e. “the bends.” Every diver’s physiology is different, and can even vary from day to day. No machine can
predict how your body will react to a particular dive profile.
Welcome
to
AERIS
and
THANK YOU
for choosing the
A300 / A300 XT
4
A300/A300 XT OPERATING MANUAL
© 2002 Design, 2012 Doc. No. 12-7255-r01 (5/14/12)
FEATURES
AND
FUNCTIONS
(Also see Dive Mode Features, page 21.)
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A300/A300 XT OPERATING MANUAL
© 2002 Design, 2012 Doc. No. 12-7255-r01 (5/14/12)
DISPLAY ICONS
- - - Time
- - - Surface Interval
- - - Plan Mode
- - - Elapsed Dive Time
- - - NDC Time
- - - Deco Stop Time
- - - Safety Stop
- - - Deco Stop
- - - Go Down to Stop
- - - Go Up to Stop
- - - Go Up
Icons:
SET = Setting Mode
FLY = Time to Fly
Battery = Low Voltage
O2% = % of O2 saturation
CF = Conservative Factor is on
Z+ = Algorithm selected
DSAT = Algorithm selected
M, FT = Depth units
MAX = Max Depth
FO2 = value is FO2 setting
# = Dive recently conducted
SAT = Time to Desaturate
PO2 = value is PO2 level
TAT = Total Deco Ascent Time
SS = Safety Stop
M, FT = Depth units
O2 = O2 Time Remaining
NX = FO2 is set for Nitrox
LAST = Data is for the Last dive
STOP = Stop Depth required
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A300/A300 XT OPERATING MANUAL
© 2002 Design, 2012 Doc. No. 12-7255-r01 (5/14/12)
Fig. 2 - NORM SURF MAIN
Fig. 1 - DIAGNOSTIC
OVERVIEW
The A300 model features FREE Dive mode as well as NORM, TECH, and GAUG modes.
The A300xt model features a Tank Pressure alarm (actuated by an reed switch) for an analog pressure
gauge mounted in the same console as the dive computer module.
NORM mode is intended for the casual diver who plans to use a single gas and does not yet wish to
configure the numerous settings and alarms, many are factory set at predetermined fixed values.
TECH mode allows the user to configure all settings and alarm values using the control buttons or PCI
program, and set up and switch between multiple gasses.
GAUG mode is for those using the units as digital gauges with no Ni-O2 calculations.
FREE mode (A300 only) is for those using the unit for breath hold activities without scuba.
ACTIVATION & DIAGNOSTICS
A momentary press/release of any button will activate the unit. It will not activate at a depth deeper
than 5 FT (1.5 M) or at an Altitude higher than 14,000 feet.
The unit has contacts that will cause it to activate and enter Dive Mode upon descent to 5 FT (1.5 M)
for 5 seconds.
The contacts are the buttons and the pins of the PCI (PC Interface) data port. Conductivity between
any button and any pin (being wet) will satisfy the activation bridge.
Upon wake up, the unit will check for depth once per second. If depth is not sensed within 10 minutes,
it will enter PSM (Power Saver Mode). Once a dive is made, it will continue checking for depth until
the Time to Fly and Time to Desaturate counters reach 0:00 (hr:min), 24 hours post dive max, and the
unit shuts Off.
Immediately following manual (push button) activation (not if by wet activation), all segments of the
LCD are displayed (Fig. 1) followed by a countdown from 8, -, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 (approx 3
sec). If sensor readings and battery voltage are within tolerance, the NORM Surface Main screen is
displayed (Fig. 2).
If any value is not acceptable, the failure description will flash for 5 seconds for each type failure. If
more than one failure is sensed, the failures will be presented sequentially in the following order.
EEP >> Eeprom error; CAL >> Calibration error; ALT >> higher than 14000 feet or deeper
than 5 feet; BAT >> Battery voltage too low (icon flashing); A-D >> A/d over range
Once the unit is activated, regardless of what mode it is in, it will enter the selected Dive Mode upon
descent to 5 FT (1.5 M) for 5 seconds.
By accessing the Set OP MOD selection (Fig. 3) in the SET group, the Operating Mode can be
changed from NORM to TECH, GAUG, or FREE (A300 only).
Once a mode is selected, operation remains in that mode until changed.
Once a dive is made in GAUG mode, operation locks into GAUG for 24 hours after surfacing.
While the Surface Main screen is displayed, access to other modes and screens is allowed. They will
remain on display for 2 minutes or until a button is pressed to access another mode or screen.
Fig. 3 - TO ACCESS SET
OPERATING MODE
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A300/A300 XT OPERATING MANUAL
© 2002 Design, 2012 Doc. No. 12-7255-r01 (5/14/12)
AUDIBLE ALARM
While operating in NOR, TEC, or GAU mode, the Audible will emit 1 beep per second for 10 seconds when alarms strike, unless it is set Off. During that
time, the Audible can be acknowledged and silenced by pressing the S button (less than 2 seconds).
An LED Warning Light, on the housing, is synchronized with the Audible and flashes as the Audible sounds. It will turn Off when the Alarm is silenced. The
Audible and LED will not be active if the Audible is set OFF (a group A setting).
Situations that will activate the 10 second Alarm include -
** Items apply only in NORM/TECH modes.
*** Items apply only in TECH mode.
• Low Pressure, at 500 PSI (35 BAR) (A300 XT only).
• Descent deeper than the Depth Alarm Set Point.
• Dive Time Remaining at the Set Point**.
• Elapsed Dive Time at the Set Point.
• PO2 (for Gas in use) level at .20 < Set Point and again at the Set Point**.
• O2 accumulation at 240 OTU (80%), then again at 300 OTU (100%)**.
• TLBG at the Set Point**.
• Ascent Rate exceeds 60 FPM (18 MPM) when deeper than 60 FT (18 M), or 30 FPM (9 MPM) at 60 FT (18 M) and shallower.
• Entry into Decompression Mode (Deco)**.
• Conditional Violation (above a required Deco Stop Depth < 5 minutes)**.
• Delayed Violation (above a required Deco Stop Depth => 5 minutes)**.
• Delayed Violation (a Deco Stop Depth > 60 FT/18 M is required)**.
• Delayed Violation (Depth > 330 FT/100 M in NORM/TECH, > 400 FT/120 M in GAUG).
• A Gas Switch would expose the diver to PO2 => 1.60 ATA***.
A single short beep (which cannot be disabled) sounds when -
• After 5 minutes on the surface after the Violation dive.
3 short beeps sound when -
• 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 every 30 seconds during dive.
• FREE - descent deeper than the Depth Alarm Set Points (1, 2, 3).
• FREE - Delayed Violation (Depth > 330 FT/100 M).
• FREE - CDT counts down to 0:00.
• FREE - TLBG at 14 segments.
• FREE - Violation, entry into Deco.
During the following situations, the audible will not turn off when acknowledged -
• Delayed Violations.
• Deco Stop Depth Violation => 70 FT/21 M stop required.
• FREE mode alarms.
PC INTERFACE
Interface with a PC, to allow uploading settings and downloading data, is accomplished by connecting the unit to a PC USB Port using the special USB
Interface Cable.
The software program together with the USB Driver required is on the ACI (AERIS Computer Interface) CD, and can be downloaded from the AERIS web
site. The program's HELP** serves as the user manual which can be printed for personal use.
**Prior to attempting to Download data from your unit or Upload Settings to it, review the HELP section of the ACI program. Recommended is to print
those sections of HELP that you consider appropriate for your Interface activities.
The Settings Upload portion of the ACI program can be used to set/change the Set Alarms group, Set Utilities group (Utilities), Set Time, etc. using the same
Interface System. FO2 related items must be set using the control buttons.
Information available for retrieval (download) from the unit to the PC Download portion of the program includes dive data such as number, surface interval
time, maximum depth, elapsed dive time, no deco status, start date/time, lowest temperature under water, sampling rate, dive profile, and Set Points.
The ACI program also allows upgrade of select versions of the unit's firmware (operating system software) after which the unit resets all operating data.
Since the upgrades require reset of the unit, they are blocked during 24 hours after dives.
• Refer to page 45 for more details relating to PC Interface.
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A300/A300 XT OPERATING MANUAL
© 2002 Design, 2012 Doc. No. 12-7255-r01 (5/14/12)
POWER SUPPLY
• Battery >> (1) 3 vdc, CR2450, Lithium.
• Shelf life >> up to 5 years.
• Use life >> 100 dive hours if (1) 1 hour dive per dive day up to 300 dive hours if (3) 1 hour dives per dive day.
• Use life >> 300 dive hours if (2) 1 hour dives per dive day.
• Replacement >> by user (annual recommended).
BATTERY STATUS INDICATION
• Warning >> icon on solid (Fig. 4a) when < 2.75 volts, battery change recommended.
• Alarm >> icon on flashing (Fig. 5) when < 2.50 volts, change the battery.
When the voltage is below that required for normal operation (< 2.50 volts), the graphics CHG and BAT will alternate and the
Battery icon (shell only with no inner bar) will flash once per second for 5 seconds, then the unit will shut off.
The Backlight will be disabled and not activate (on the surface or during the dive) when Battery voltage is below the warning
level (< 2.75 volts).
If a Low Battery Warning condition (< 2.75 volts) occurs during a dive, the system will continue to operate with normal displays
and functions throughout that dive.
The Low Battery icon will not be displayed during dives (underwater). It will be displayed when the unit enters Surface Mode.
If a Low Battery Alarm condition (< 2.50 volts) occured during the dive, the graphics CHG and BAT will alternate after 10 min-
utes on the surface, then the unit will shut Off.
LOW BATTERY WHILE ON THE SURFACE
<= 2.75 volts (warning level)
• Backlight is completely disabled.
• Battery icon (shell with inner bar) appears solid.
• If a dive is started, the icon is not displayed on the dive mode screens.
• All functions continue to be available.
<=2.50 volts (Too Low - alarm level)
• Battery icon (shell only) will flash for 5 seconds then the unit shuts off completely.
LOW BATTERY DURING A DIVE
<= 2.75 volts (warning level)
• Backlight is completely disabled.
• All other functions continue to be available.
• Battery icon is not displayed on the dive mode screens.
• Battery icon (shell with inner bar) appears solid upon entry into Surface Mode.
<= 2.50 volts (Too Low - alarm level)
• Backlight is completely disabled.
• All other functions continue to be available during the dive.
• Battery icon is not displayed on the dive mode screens.
• Upon surfacing, the Battery icon (shell only) flashes and the graphics CHG and BAT alternate for 10 minutes, then the unit
shuts Off completely.
BATTERY CHANGE
While the battery is being replaced, calculations and Set Points will be held in non volatile memory. Time and Date may need to
be adjusted after the battery is installed.
PSM (POWER SAVER MODE)
Once 10 minutes elapse while the unit is activated and on the surface prior to conducting any dives, or once 10 minutes elapse
after the post dive transition period* has ended, the unit enters PSM (Power Saver Mode).
PSM turns the display off (Fig. 6) until a button is pressed at which time it turns back on.
During the time that the screen is off, all operations continue as normal in the background with current updated information
displayed as soon as the screen comes on again.
*Transition Period (upon surfacing) -
• Operation shifts from Dive Mode to Surface Mode upon ascent to 2 FT (0.6 M) for 1 second.
• Making a descent during the first 10 minutes after surfacing from a NORM, TECH, or GAUG dive is a continuation of that
dive; or the first minute after surfacing from a FREE dive (A300 only).
• A descent made after the 10 minute (or 1 minute) interval has elapsed is then considered a new dive.
• During the first 10 minutes (or 1 minute) after surfacing, the Surface Main screen will be displayed with Surface Interval
time. Surface ALTs can be accessed to view other information pertaining to that dive.
Fig. 4 - LOW BATTERY
WARNING
a
Fig. 5 - LOW BATTERY
ALARM
(after surfacing)
Fig. 6 - PSM
9
A300/A300 XT OPERATING MANUAL
© 2002 Design, 2012 Doc. No. 12-7255-r01 (5/14/12)
NORM/TECH
SURFACE MODES
10
A300/A300 XT OPERATING MANUAL
© 2002 Design, 2012 Doc. No. 12-7255-r01 (5/14/12)
NORM/TECH SURFACE MODE
The SURF MAIN screen of the mode selected will remain on display for 10 minutes during which time the unit will enter that type
Dive Mode upon descent to 5 FT (1.5 M) for 5 seconds.
The unit will enter Post Dive Surface Mode for that Mode upon ascent to 2 FT (0.6 M) for 1 second and display the Surface Main
with the Surface Mode (clock/wave) icon flashing.
Access to SURF ALT screens is allowed during the first 10 minutes with access to other surface modes/screens blocked until
10 minutes elapse.
Exception is for Violations.
When the 10 minute post dive surface Interval time has elapsed, access to other Surface modes/screens is allowed. If
another 10 minutes of no action elapses, operation will enter PSM.
NORM/TECH SURFACE SEQUENCE
Sequence >> SURF MAIN >> ALT 1 > ALT 2 > ALT 3 > FLY/DESAT > PLAN > LOG > SET > HIST > ID.
• A (< 2 sec) to step forward through the Surface sequence.
• A (hold) to scroll forward through the Surface sequence (4/sec).
• M (< 2 sec) to step back through the Surface sequence.
• S (< 2 sec) to access selections.
• S (2 sec) to step back from a selection to the previous selection or sequence item.
• M (2 sec), or if no button is pressed during a period of 2 minutes, to revert to SURF MAIN*.
• S (press) to activate the Smartglo Backlight.
*ALTs revert to the Main after 10 seconds of no button action.
- - - - - - - - - -
Some of the descriptions that follow only apply to TECH mode.
Some are also shared by GAUG and FREE modes, which will be referenced back in those sections.
NORM/TECH SURF MAIN, information includes (Fig. 7, 8):
> SI (hr:min) with clock/wave icon; if no dive yet, this is time since activation.
> Dive number with # icon; that operating period, up to 24 (0 if no dive made yet).
> Graphic NOR or TEC (operating mode).
> Battery icon, if voltage is low.
> CF icon, if set On.
> Z+ or DSAT icon, the algorithm selected.
> Gas 1 (tank) icon; start gas, default gas 10 minutes after a dive.
> NX icon, if FO2 is set for Nitrox.
> TLBG with icon, if any nitrogen after dives.
• A (< 2 sec) to step forward to ALT 1, then step through the Surface Sequence.
• A (hold) to scroll forward through the Sequence (4/sec).
• M (< 2 sec) to access ID-SN, then step back through the Sequence.
• S (press) to activate Smartglo Backlight.
NORM/TECH SURF ALT 1, information includes (Fig. 9):
> Max Depth* with FT (or M) and MAX icons.
> Elapsed Dive Time* (hr:min) with wave/clock icon.
> LAST icon, indicating that data is from the dive previously conducted.
*Dashes if no previous dive.
• A (< 2 sec) to step forward to ALT 2.
• M (< 2 sec) to step back to Main.
• 10 sec, or M (2 sec), revert to Main.
• S (press) to activate Backlight.
NORM/TECH SURF ALT 2, information includes (Fig. 10):
> Time of Day (hr:min) with AM (or PM) icon, no icon if 24 hour format.
> Temperature with °F (or °C) icon.
> Altitude level graphic, if L2 (to L7), blank if Sea level.
• A (< 2 sec) to step forward to ALT 3 (if Nitrox), or access FLY (if Air).
• M (< 2 sec) to step back to ALT 1.
• 10 sec, or M (2 sec), revert to Main.
• S (press) to activate Backlight.
Fig. 8 - TECH SURF MAIN
(after dive 2)
Fig. 7 - NORM SURF MAIN
(no dive yet, set for Nitrox)
Fig. 9 - NORM/TECH
SURF ALT 1
Fig. 10 - NORM/TECH
SURF ALT 2
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