LeveLine
®
Instruction Manual
10401-01026 Rev D
2.11. Level Data Correction
The LeveLine
®
Loggers simply log temperature and air/water pressure. In order to translate
these values into actual water levels, the data must be merged and corrected. This is taken
care of under the 'Level Data Correction' tab.
If you have logged water pressure data using an ABS (absolute) type Level Logger, it is
normal practice (though not essential) to have logged this data concurrently with local air
pressure using a BARO (barometric pressure) type logger.
If you have logged water pressure data using a GAUGE (vented) type Level Logger,
separate barometric pressure data is not required for level correction.
2.11.1. Loading Logged Data
Prior to any data correction, the data for correction must be loaded into LeveLink
™
as
Data can be loaded either directly from a LeveLine
®
Logger, or from a LeveLine
®
Meter that
has previously been used to retrieve data from a Logger in the field.
Alternatively, data that has been previously retrieved and saved to your PC can be re-
opened as described in section
If you plan to correct water pressure data logged using an ABS (absolute) type Level
Logger, you should load your water pressure data into LeveLink
™
under the Level Logger
Data tab. You should then load your associated air pressure data (if available) into
LeveLink
™
under the Baro Logger Data tab.
If you plan to correct water pressure data logged using a GAUGE (vented) type Level
Logger, you should load your water pressure data into LeveLink
™
under the Level Logger
Data tab. No associated barometric pressure is necessary.
Once your data is loaded into LeveLink
™
, click the 'Level Data Correction' tab.
2.11.2. Selecting Corrections
On initial entry to the Level Data Correction tab, the data box and charts will be blank. In
order to bring corrected data in from the Logged Data tabs, you must first choose the type
of correction and averaging to apply. The choices are shown below.
© 2019 Aquaread
®
Ltd.
www.aquaread.com
Page 35 of 90
