6
TECHNICAL/FUNCTIONAL
CHARACTERISTICS
TECHNICAL CHARACTERISTICS
DEPTH MEASUREMENT:
Maximum displayed depth: 150 m (495 ft).
Measurement resolution: 10 cm in the 0-100 m
range / 1 m in the 100-150 m range.
Temperature compensation of the measurement.
Measurement accuracy: from 0 to 80 m, ±1% of
full scale.
Calibration in fresh water.
Difference in sea water: 2.5%.
TEMPERATURE MEASUREMENT:
Measurement range: -10 / +50 °C (14/122°F).
Measurement resolution: 1°C.
Measurement accuracy: ±2°C (±2°F).
ALGORITHM:
11 tissues from 2.5 to 480.
Deterministic-exponential algorithm, with M
values (low bubble) derived from the Rogers
and Powell studies conducted using Doppler
methods (modified Haldanean).
Deterministic-exponential algorithm, with M
values (low bubble) derived from the Rogers
and Powell studies conducted using Doppler
methods (modified Haldanean).
Display backlight: timer-controlled and
permanent
Power supply: 2 alkaline 1.5 V batteries (type
AAA) easily replaceable by the user.
Battery life:
Approximately 12 months with 50 dives
and occasional use of the backlight.
Approximately 10 dives with the backlight
always on.
Operating temperature: from -10 to +50°C
(14/122°F).
Storage temperature: from -20 to +70°C
(-4 /+158°F).
FUNCTIONAL CHARACTERISTICS
Operating modes:
“Air”.
"Nitrox".
"Bottom Time".
Stop Mode: lockout in case of omitted stop
and/or uncontrolled ascent (unless disabled by
the user).
Depth display: meters/feet.
Temperature display: °C/°F.
Fresh/sea water selection: manual.
Altitude programs:
P0 (0-700 m) (0-2300 ft).
P1 (700-1500 m) (2300-4900 ft).
P2 (1500-2400) (4900-7900 ft).
P3 (above 2400 m) (above 7900 ft).
Decompression stops: up to 24 meters (79 feet).
Differentiated ascent rate: from 10 to 18
m/min (33 to 59 ft/min).
Audible alarms, which can be disabled:
Low battery.
Deco stop depth violation.
Excessive ascent rate.
No decompression limits reached.
Maximum permitted depth for the
programmed value of max PPO2.
Simulator mode.
Scrolling of no-decompression limits: from 12
to 48 meters (39 to 157 feet).
Calendar clock: Year, month, date, hour,
minutes (leap year management).
PC Interface: Optical, with RS232 serial
adapter.
User programmable parameters (via the buttons
or the PC interface):
"Air"/"Nitrox"/"Bottom Time".
Percentage Oxygen in Breathing Mix (from
21% to 50% in increments of 1%).
Max PPO2 (from 1.2 to 1.6 bar) (from 17.4
to 23.2 psi).
Altitude program.
Temperature measurement unit: °C / F.
Depth measurement unit: meters / feet.
Fresh/sea water.
Audible alarms (on/off).
Stop mode on uncontrolled ascent
(on/off).
Calendar clock settings.
Clear residual nitrogen memory.
History:
Total number of dives logged.
Total dive hours and minutes logged.
Greatest depth logged.
Coldest temperature logged.
Dives stored in logbook: 50 with profile for a
maximum of approximately 38 hours.
Profile point interval: 20 Sec.
Data stored in logbook:
Start date and time of the dive (year,
month, date, hour and min).
Dive settings:
Operating mode: "Air", "Nitrox",
"Bottom Time".
Salt/Fresh.
Darwin.qxd 29/03/2002 16.45 Pagina 6
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