User's Manual

USER MANUAL – ActivDuo Active RFID Tags
Configuration No. Wavetrend Technologies Ltd Master File Name Issue Date Page
00000-0000-150-1 User Manual ActivDuo Tag-00.8-UM-LT 3 DECEMBER 2008 14 OF 42
1.5.2 W-Series Life Spans
Battery life spans for a W-Series tag are very much determined on the amount of tag data the user selects
the tag to transmit. For the purposes of this section, the best case life span figures are given for Class 1 tags
which transmit the least amount of data, while the worst case life span figures are given for tags that are
programmed to transmit the full amount of data possible.
The W-Series ActivDuo tag will typically give the user greater than 6 years 2 months of continuous use when
set to transmit at its default Status Tx rate of 10 seconds, and is configured to carry L-Series type data (Class
5) and experiences movement for less than 10% of its functional life.
The tag will give the user at least 5 years of continuous use even if it is exposed to movement of up to 90%
of its total functional life span when the Alert Tx rate is set to the default rate of 1.5 seconds.
For other Alert Tx rates less than 1.5 seconds, and where the tag moves for more than 10% of its total
functional life span, the tag battery life span will be reduced, due to the greater number of transmissions
initiated during its life span.
At worst the tag will offer a user over 2 years of continuous use when set to the shortest Alert Tx rate (0.4s)
and when it moves for up to 90% of its functional life span.
1.5.3 End of Life
The tag will continue to transmit its data signals at a constant strength until the battery is exhausted, at which
point the tag will cease transmitting. The battery loses less than 1% of its power for every year in storage.
The battery has a maximum specified shelf life of 8 years, in the case of where the tag is never activated.
The tag’s Battery Age Counter value is transmitted with every signal (L-Series) or can be selected to be
transmitted, if required, (W-Series). By monitoring the value of the age counter, the recipient RFID software
system can alert the user to the fact that the tag is nearing the end of its functional life.
1.5.4 Keeping Tags in Stock
It is recommended that ActivDuo tags be kept in stock for less than two years after purchase from
Wavetrend. The oldest tags held in stock should always be sold on, used or activated first. Tags should not
be activated if they are to be held in stock. Activate tags only when needed for use. If tags are to be used on
occasions, deactivate them when they are in storage between uses to maximize their useful life.
1.6 ActivDuo Tag Accessories
1.6.1 Tag Attachment Kits
Most of the ActivDuo Tags can be attached to most types of assets using the Tag Attachment Kits supplied
by Wavetrend. The attachment kit consists of 10 very high bond (VHB), double-sided adhesive pads, with
most being made of clear gel, while the TG800-A-IH pads are made of VHB gel-foam pads. The VHB pads
are cut to match the size of the tag.
The VHB gel pads will take 24 hours to cure and reach maximum adhesion to both the tag and the asset.
Within this time period it will be easier to remove the tag if it needs repositioning or has been affixed to an
asset in error. If the tag & gel pad are removed from the asset soon after first being affixed to the asset, it is
not recommended to try reuse the gel pad as it will not adhere to the asset surface as well for the second
time. Replace the pad.
The VHB pads will not adhere to wet, greasy, dusty or rough surfaces (such as wood, concrete etc.)