Chapter 3
12
until samples are taken in one of the LOG modes. Turning the Q-T
RAK
off will
not
erase data. Use the
SAMPLE
key to start and stop a sample.
LOG Modes:
There are three LOG modes: LOG 1, LOG 2, and LOG 3. When one of
these modes is selected using the
SAMPLING MODE
key, the LOG
mode number is listed at the top of the display. The LOG modes allow
you to record data points for later retrieval and analysis using the
software provided with the instrument.
Use the
SAMPLE
key to start and stop recording. The word
“RECORDING” appears at the top of the display when recording is in
progress. Use the
CO
2
,
TEMP
HUMIDITY, or CO
keys to select which
measurement is displayed during recording.
The frequency that data is recorded can be set for LOG 1 mode with the
LOGGING INTERVAL
key. Use T
RAK
P
RO
software for LOG 2 and
LOG 3 modes.
Data recorded using one of the LOG modes can only be erased by using
the
CLEAR MEMORY
key. Turning the Q-T
RAK
off
will not
erase
data. Recording another sample with one of the LOG modes, without
clearing memory first, causes new data to be added to the existing data
(using a new test ID).
CLEAR MEMORY Key
Use the
CLEAR MEMORY
key to erase all data. The
CLEAR MEMORY
key will
not
respond unless the Q-T
RAK
is first put into one of the three
LOG modes by using the
SAMPLING MODE
key.
Note
: You should first download your data to your computer through the
T
RAK
P
RO
software. There is only one block of memory in the
Q-T
RAK
. Clearing the memory for one LOG mode clears memory for
all LOG modes.
To clear memory, press and hold the
CLEAR MEMORY
key until the
countdown reaches zero, then release quickly. This prevents accidental
erasure of data. Releasing the key too soon or too late prevents memory
from being cleared … try again.
LOGGING INTERVAL Key
Use the
LOGGING INTERVAL
key to view or set the frequency/averaging
period for recording data in LOG 1 mode or to view the current interval
setting in LOG 2 and LOG 3 mode. Use T
RAK
P
RO
software to set the
logging interval for LOG 2 and LOG 3 mode. The
LOGGING INTERVAL
