Watch User's Guide D9

Table 5.1. Audible and visual alarm types
Alarm reasonAlarm type
Dive computer is activated.Short single beep
Dive computer automatically returns to the TIME mode.
Cylinder pressure reaches 50 bar/725 psi. The cylinder
pressure display will start to blink.
Three beeps with a three
second interval
Cylinder pressure reaches the selected alarm
pressure.
Calculated remaining air time reaches zero.
No-decompression dive turns into a decompression
stop dive. An arrow pointing upwards and the blinking
ascent warning ASC TIME will appear.
Three beeps with a three
second interval and activated
backlight
Maximum allowed ascent rate, 10 m per min/33 ft per
min, is exceeded. Ascent rate bar graph blinks and
STOP warning appears.
Continuous beeps and
activated backlight
Decompression ceiling depth is exceeded. An error
warning Er and a downward pointing arrow appear.
You should immediately descend to, or below, the
ceiling. The instrument will otherwise enter a
permenant Error mode within three minutes, indicated
by a permanent Er.
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