In-Situ Level TROLL 400/500/700/700H Operators Manual - Manual (Page 57)

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Using BaroMerge Software
BaroMerge Software is used to post-correct absolute (non-vented) level sensor data to
eliminate barometric pressure effects from the measurements. BaroMerge Software can
be accessed through the Win-Situ 5 Software Tools menu. BaroMerge provides three
options to correct data.
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Fixed Correction—A single offset value is applied to all selected log data. Use
this option if you know the barometric pressure of the site during the log, and know
that it did not change.
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Manual Entry—Specify two or more correction values to apply to the log data.
Use this option if you wish to manually enter a data set of barometric pressure
values.
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BaroTROLL log file—Absolute level sensor data points are individually corrected
to reflect barometric pressure changes that were logged by a BaroTROLL
instrument during the approximate time period.
BaroMerge Input—BaroTROLL File
Log files that contain absolute data can be barometrically compensated using values
logged by the In-Situ Inc. BaroTROLL Instrument. Select this method when you have
access to a BaroTROLL log file covering approximately the same time period as the
data file you intend to correct.
To use this correction method, you need the name of the BaroTROLL log file and the
name(s) of the absolute log file(s) you want to correct.