Xylem PL200-G WATER PRESSURE DATA LOGGER - Manual (Page 23)

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Decimal Places: From the pull-down menu, select the
number of decimal places to the right of the decimal
point that should appear in the historical data and in the
numerical data field at the bottom of the bar graph.
Calibrate: The “Calibrate” button provides a simple 4-step process for calibrating
the logger to a particular sensor. Click the Calibrate button and follow the menu
instructions.
Click on the High EU field and enter the
high engineering unit that will be used to
calibrate the logger, not the highest reading
the sensor can output. In this example, a
pressure of 100 psi is used to calibrate
the logger, even though the sensor can
measure up to 200 psi.
Click Next.
Place the sensor in the condition that will
cause it to output the level corresponding
to the high EU entered in the previous menu.
Wait for the data reading to stabilize.
Click Next.
Click on the Low EU field and enter the
low engineering unit that will be used
to calibrate the logger, not necessarily
the lowest reading the sensor can output.
In this example, the value is zero psi.
Click Next.
Place the sensor in the condition that will
cause it to output the level corresponding
to the low EU entered in the previous menu.
Wait for the data reading to stabilize.
Click Next to complete the calibration.