Preparing To Measure; Sessions And Studies; Table 5-2: Sessions And Studies Explained - 3M SP-SE-2-1/1 User Manual

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Preparing to measure

Sessions and Studies

Preparing to measure
Sessions and Studies
efore you begin running a session/study, there are a couple items to consider:
B
The following components explain how the data is stored on the instrument.
Storing Data
Session
Studies
Session and
Study Scenario

CAUTION: The memory card should not be inserted or removed during a study—
you can lose data.
Understanding sessions and studies
•
Adjusting the measurement range before running a study
•
Calibrating the instrument
•
A session is comprised of one or more studies and uses data
derived or accumulated from those studies to arrive at session
results. The measurements in a session are the same ones
made in each study in the session. For example, the maximum
SPL determined for each study in a session is compared to the
maximums for each other study in the session to determine the
maximum SPL for the entire session. Likewise, an average or an
accumulation for a study is continued using data from
subsequent studies in the session to arrive at the corresponding
average or accumulation for the entire session.
Studies are periods in a session during which measurements
are acquired, processed and saved by the instrument. The
duration of each study period is called the study's run time.
You will be running a sound test in a machine shop. Your main
objective is to determine the noise in three different work areas
of the plant which include two different machinist areas and a
welding area. You set the SoundPro to run and pause three
times at one-hour intervals. When the tests are completed, you
upload the data into QSP-II. The tests will store as one
"Session" under "Downloaded" node and each one-hour test is
denoted as a "Study".

Table 5-2: Sessions and studies explained

Explanations
Models SE and DL