Xylem WL16 WATER LEVEL LOGGERS - Manual (Page 24)

Global Water
800-876-1172 • globalw.com
- 24 -
The calibration of channel one to a water level sensor is discussed in the following
example where it is not possible to calibrate the sensor over its full range. The water
level sensor shown is designed to measure over the range of 0-15 feet but a water
column of 15 feet may not be available. The sensors can calibrated over any range
such as 0 to 8 feet, even when it is desirable to measure beyond these limits.
Enable: If the “Enable” box at the top of a column is checked,
data for that channel will be shown in the historical record and
be available for export to Excel. The data
for all the analog channels is always being
recorded whether the channel is enabled
or not.
Units: This field shows the units that will
appear at the top of the data column for
that channel in the historical record as well
as the display of data in the main screen.
Click on the field to enter the unit or select
from a predefined list.
High EU: The High EU field is the engineering unit where the
highest output from the sensor is achieved during the calibration process, in this
case a water level of 8 feet.
Low EU: The Low EU field is the engineering unit where the lowest output from the
sensor is achieved during the calibration process, in this case a water level of zero.
High Raw: This is the raw data value as measured by the WL16 Data Logger that
corresponds to the High EU value and is automatically set by the calibration process.
In this case, the raw data value returned by the logger at a water level of 8 feet.
Low Raw: This is the raw data value as measured by the logger that corresponds to
the Low EU value and is automatically set by the calibration process. In this case,
the raw data value returned by a water level of zero.