User Manual Part 2

IS-900 User Guide Page 99 of 159
Additional possible risks of harm.
While tracking technology has been used for many years, the range of sensors
that are used to calculate positional and angular data continues to develop.
Over the last twenty years as considerable amount of research has been
conducted into possible side effects induced in users of real time computing
systems that include various types of tracking sensors. This research has
reported the symptoms described below from some users of these systems.
The IS-900 is designed using the latest sensor technologies and we believe
that the possibility of such symptoms occurring is minimized. However, it is
not possible to design for the individual characteristics of each user and it is
possible that users will experience one or more of the side effects described
below. Historic research shows that the effects or symptoms ordinarily occur
during and immediately after use and should diminish quickly once the user
stops using the system.
We want you to make an informed and responsible choice about using the IS-
900. Accordingly, we warn you that even if you read and follow the User
Instructions, you may experience one or more of the following effects or
symptoms when using an IS-900 with a personal display: eye strain, altered
vision, eye or muscle twitching, headaches, neck and shoulder strain, nausea
and vomiting, disorientation, dizziness, impaired balance and stability,
drowsiness, fainting, fatigue, sweating, extreme paleness, impaired hand-eye
or other co-ordination.
Each effect or symptom, if it occurs, should be temporary and may last from a
few minutes to 30 minutes.
Tracker Use Guidelines
Keep the IS-900 MicroTrax tracking devices still for the first 10
seconds after starting your application software.
It is recommended, though not required, that you wait for the
MicroTrax devices to warm up (it achieves optimal performance after
warming up for at least 15-20 minutes).
The IS-900 system is tuned for normal head & hand motion. Avoid
shaking/vibration. Remember, this precision instrument uses angular
rate sensors, which sense smooth, regular movement very well.
If you keep these guidelines in mind, your IS-900 system will deliver superb
performance.