1. FOR
YOUR SAFETY
Always remember that The Diver is Responsible for His or Her Own Safety!
When used properly the IQ-400 is an outstanding tool for assisting properly
trained, certified divers in planning and executing standard and multi-level sport
dives within the described no-decompression limits. It is Not a Substitute for
Certified Scuba Instruction including training in the principles of decompression.
Do Not attempt to use the TUSA IQ-400 without reading this entire
Instruction Manual. If you have any questions about the manual or the IQ-
400, contact your TUSA dealer before diving with the IQ-400.
Back-Up Instruments
Sharing the IQ-400
No dive computer can take into account dives made without the computer.
Thus any diving activity 48 hours prior to initial use of the computer may give
misleading information and must be avoided.
Personal/ High Altitude Adjustment
More information about this is given in Section 3.5, “Personal Adjustment and
High Altitude Dives”.
6
WARNING
USE BACK-UP INSTRUMENTS!
Make certain that you use back-up instrumentation including a
depth gauge, submersible pressure gauge, timer or watch, and
have access to decompression tables whenever diving with the
IQ-400.
WARNING
THE IQ-400 SHOULD NEVER BE TRADED OR SHARED
BETWEEN USERS WHILE IT IS IN OPERATION!
Its information will not apply to someone who has not been wear-
ing it throughout a dive or sequence of repetitive dives. Its dive
profiles must match that of the user. If it is left on the surface dur-
ing any dive, it will give inaccurate information for subsequent
dives.
