AquaLab TDL 5 MENUS
Mode
Users may choose between single, continuous, custom, or low emit-
ting mode by pushing the save button.
Single Mode: Single mode reads the sample once, after which the
instrument notifies you that it is finished and the water activity and
temperature display on the screen.
Continuous Mode: Continuous mode reads your sample until you
open the chamber lid or stop the test using the stop button. AquaLab
reads the sample, displays the water activity and temperature, then
begins another read cycle without further input from the user. Be-
tween samples, the machine signals you with beeps. This mode elimi-
nates the possibility of moisture exchange with the environment out-
side the chamber in between readings. A time on the bottom left of
the screen tracks the cumulative read time. All readings taken dur-
ing continuous mode are saved on the instrument memory if the auto
save feature is selected (see Auto Save below). If AquaLab is con-
nected to a computer using AquaLink 4 (See Section 11), all readings
taken during continuous mode download to the AquaLink 4 software.
Custom Mode: Custom mode allows a sample to be read mul-
tiple times until a desired level of stability is achieved. The user
determines how many consecutive tests they want to be within a
given water activity stability setting. For instance, the customer can
choose to have four consecutive tests be within ±0.001 a
w
. The in-
strument continues to run tests until it records four consecutive tests
within ±0.001 a
w
, then it stops and reports the value of the final test.
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