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An IQ-600 displaying an “Out of Range”
Warning is incapable of displaying other
critical information such as depth, time,
Ascent Rate, PO
2
, OLI and Deco Stop
Violations, and required decompression
stops. For this reason, you should not—
under any circumstance—use a IQ-600 in
such a way that would cause the Out-of-
Range Warning to be displayed. Under such
conditions, the risk of serious personal
injury or death would be substantial.
Again, so long as you use your IQ-600 within normal recre-
ational diving depth and time limits, the odds that an Out-of-
Range Warning will take place are almost nonexistent.
Nevertheless, should you manage to do so, the computer will
remain unusable for the next 24 hours.
To exit this mode: Assuming you have no Decompression Stop
or Out-of-Range violations, your IQ-600 will exit Dive Mode and
return to Surface Mode automatically upon ascent.
2.07 How the IQ-600 Measures Actual
Bottom, Surface Interval Times
Although the IQ-600 automatically enters Dive Mode as soon
as you take it under water, it does not begin to record Actual
Bottom Time (ABT) until you descend below 5 ft/1.5m.
Conversely, it assumes Actual Bottom Time ends and Surface
Interval Time (SIT) begins as soon as you ascend above 5
ft/1.5m.
