TSI Incorporated Q-TRAK Plus 8552, Operation And Service Manual

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Operation 23
If…. Then….
no start time was set… …the Q-T
RAK
Plus monitor begins
logging immediately after the
↵
key
is pressed.
This happens no matter what is
entered for the start date.
a test start time was set, but no start
date… …the Q-T
RAK
Plus monitor begins
at the next specified time,
regardless of the date.
a start time and start date have been
set that are in the future… …the Q-T
RAK
Plus monitor will
display the time and date of the
next test and the next test ID.
the test start date and/or time has
passed…
…pressing the
↵
key has no
impact. The program will never
execute (no data will be logged).
no test length is set… …the Q-T
RAK
Plus monitor
samples continuously until the
↵
key is pressed or until the memory
is full.
↵
was pressed during sampling…
…the program stops data logging
(unless the keypad is locked out).
When a pre-programmed test
sequence ends… …the Q-T
RAK
Plus monitor
automatically returns to the Survey
Mode.
Memory Considerations
The Q-T
RAK
TM
Plus IAQ Monitor has a great deal of memory and
will not normally run out. The instrument contains separate
memory for the single points and for the logged tests (filling up the
memory for one type of data will have no affect on the other type).
The Q-T
RAK
Plus monitor can store approximately 440 separate
single points; in addition to 48,671 logged data points separated by
as many as 110 tests. That is, the instrument can also store
approximately 811 hours (33 days) of logged tests, when recording
at 1 minute logging intervals (the number of hours of logged tests
may be more or less, depending upon the logging interval).
The total test time should be considered when selecting a logging
interval. Shorter logging intervals use memory more quickly than
longer intervals. The logging interval and the available memory
determine the maximum possible duration of a data logging session.
Maximum logging duration
=
%memory available
x
48,671
x
logging interval