7
Logging Interval
Intervals refer to temperature data points. A logging interval is recorded and plotted depending on how a tag is programmed. Each logging interval is
plotted on a temperature curve graph and denotes time / temperature information per data point.
LRT
The acronym for last recorded temperature. This value is the last temperature the tag recorded in the tracking interval or logging interval (whichever was
most recent).
Maximum Excursion Count
The maximum number of excursions that a tag will record. TrekView Tags track a maximum of 48 excursions.
Maximum Logging Time
The maximum amount of time that a tag will plot data points on a curve graph. The logging interval is programmable. If the logging interval is pro-
grammed to plot a point every minute, the maximum logging time is 2 days, 18 hours, 40 minutes. After this time has expired, the log will end but the tag
will continue to track for excursions and will continue to record data in the histogram.
Maximum Tracking Time
TrekView Tags have a maximum tracking time of up to three years. The tracking time refers to a temperature reading taken every minute and stored in
the temperature bins of the histogram. The storage of tracked temperatures are not related to the logging interval. The histogram feature is an additional
memory function that stores temperatures and can capture excursions that a logging interval may fail to capture. (i.e., The histogram will continue to fi ll
even if the log is full.)
MKT
The acronym for mean kinetic temperature. It is a simplifi ed way of expressing the overall effect of temperature fl uctuations during storage or transit of
perishable goods. The value chosen for calculating the MKT is deltaTH = 75.0. This value was chosen as it is in range of 60–100 KJ/mol, which is com-
mon for many pharmaceutical and biological solids and liquids.
Off Mode
In this state, a TrekView Tag is not recording, in standby mode or soaking. The tag is off. This condition is the lowest power state and is the proper mode
for TrekView storage.
Order of Magnitude
Orders of magnitude are generally used to make very approximate comparisons, but refl ect deceptively large differences.
Newly Confi gured Tag
A tag that has a new confi guration (a confi guration that has not been used before).
Reader
A transceiver device that can both send and receive wireless commands with a TrekView Tag.
Record Time
The total time a tag has been recording.
Recording Mode
In this state, the tag is recording time and temperature.
RFID
The acronym for radio frequency identifi cation. TrekView Tags are temperature data loggers with an RFID interface. TrekView tags communicate with a
TrekView Reader by refl ecting information back to the reader. This feature enables data download and tag activation without the reader making contact
with a TrekView Tag. RFID also allows for rapid data download. A full 4,000-point data log can be downloaded in 0.5 seconds.
Run Time
The total operation time for a tag’s use (including sleep time, soaking time and recording time).
GLOSSARY OF TERMS
Summary of Contents for Trekview
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