5.2 Battery Compartment Inspection
Frequently check for leaks in the battery compartment. This is important espe-
cially after the battery has been replaced. If you find moisture inside the trans-
parent battery compartment lid, there is a leak.
A leak must be corrected without delay, as moisture will seriously damage the
computer, even beyond repair. TUSA does not take any responsibility for dam-
age caused by moisture in the battery compartment, if the instructions of this
manual are not carefully followed.
In case of a leak immediately bring the
IQ-400
to an authorized TUSA dealer/
distributor.
6. T
ECHNICAL
D
ESCRIPTION
6.1 Operating Principles
The TUSA
IQ-400
is a multi-functional sport diving instrument, which pro-
vides information on depths, times and decompression requirements. Its elec-
tronic microprocessor mathematically models the absorption and release of
nitrogen during all phases of diving, including ascents, surface intervals and
repetitive dives.
No-Decompression Limits
The no-decompression limits displayed by the
IQ-400
upon activation are for
most dives to a single depth slightly more conservative than those permitted by
the U.S. Navy tables, Tables 6.1-2.
36
WARNING
DO NOT ATTEMPT TO USE THE
IQ-400
WITHOUT
FIRST READING THE ENTIRE OWNER’S MANUAL!
The IQ-400 must be activated before diving and operated cor-
rectly to provide accurate and correct information.
!
!
