UTC UDI-28 User Manual page 4

Care should be taken to charge on a fireproof surface, such as brick or in a hot (warm) environment.
Do not charge the UDI-28™ when lying on an ignitable surface. If you left the UDI-28™ in a warm
environment or open to sun light, DO NOT CHARGE IT, wait until it will be cooled to a temperature of less
than 30 centigrade. Do not charge batteries near flammable items or liquids
Keep a dry fire extinguisher nearby - or a large bucket of dry sand, which is a cheap and effective
extinguisher. Do not charge inside an automobile, especially while driving.
The UDI-28™ should NEVER be left unattended while charging.
Handling Cautions:
New cells may have a high initial charge, and care must always be taken to insure that the cap of the
UDI-28™ is completely sealed. DO NOT REPLACE BATTERIES. If the batteries performances are low,
please send it to the authorized dealer for repair or replacement.
Charging cycles:
The Batteries should work in good condition for approximately 500 charging cycles. We strongly
recommend that every year you'll send the UDI-28™ for batteries test in order to measure their stability
and charging cycles. Please remember, every charging cycle shorten the batteries lifetime and there is an
ageing process with the Lithium chemistry, thus, it is important to safely dive with batteries that will enable
you to complete the dive.
COMPASS DISCLAIMER
The UDI-28 contains 3-D Magneto Impedance sensor. Combined with software, it generates the North
magnetic direction. Common sense must be used at all times when navigating, therefore it should only be
considered as aids to navigation. The UTC' policy of continuous improvement may result in changes to
product specification without prior notice. It is advised to visit www.utc-digital.com from time to time and
to download updates for new algorithm and compensation factors for this sensor.
This compass is intended for professional dive use only; It should not be used for industrial or professional
measurements. The compass' accuracy is highly dependent on the environment, for example, soft or hard
metal will highly alter the real measurement. Thus, it is advised not to use the compass in the vicinity of
any metals. UTC does not assume any responsibility for losses or claims by third parties that might arise
through the use of this compass.
PRESET LISTS DISCLAIMER - TABLE TAG
Please ensure that prior to any dive, all UDI-28™ devices and boat units, in the same network, include
the same user list and messages list. Text messaging communications will only function properly if those
lists are identical.
To ensure that the lists are identical, each UDI-28™ has a Table Tag value, which is a unique code for
each specific UDI-28™ lists.
Make sure that each UDI-28™ device and boat unit has the same Table Tag value.
The Table Tag value is displayed in the About UDI screen.
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