General Tools and Instruments HT50 v.1 - Manual (Page 13)

result in too much essentially identical data being stored in
memory, potentially limiting its capacity to capture important
events such as an unexpected excursion of temperature or
humidity. Conversely, using the longest sampling time setting
of 12 hours will likely cause important events to go
undetected.
If you are an experienced data logger, you already know how
to choose the optimum sampling time for your application. If
you are a novice, pick a sampling time closer to the minimum
sampling time than the maximum, on the assumption that the
HT50 probably has enough memory (8000 pairs of humidity
and temperature readings, if you choose not to log IR
thermometer measurements) to store all the data you ask the
meter to log—unless you use it to log data for months, rather
than weeks or days.
If you wish, you can also drag the sliders shown in the figure to
set—from top to bottom— high and low alarm setpoints for
(ambient) temperature, humidity, and IRT (surface) temperature.
Once you have chosen your data logging parameters, click
Setup. A window will appear advising that “The device is set
up successfully.” Clicking Setup also synchronizes the HT50’s
internal clock with your computer’s clock, giving all data logs
to be captured an absolute time reference.
You can now unplug the HT50 from your computer’s USB port.
The unit is in “standby” mode, ready to begin logging data.
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