Spectrum 2120, Product Manual, Page: 5 / 16

5
Calibration
The procedure for calibrating the meter is given in
the accompanying meter instruction manual.
Taking and Data Logging Measurements
When the probe is inserted in soil or water, the me-
ter’s LCD will immediately begin indicating the pH.
When this value stabilizes, the meter locks on to that
value and the LCD will display READY in the upper
right corner. To capture this value with
the data logger, press the
HOLD/
ENTER
button followed by the
Print
button. The
Print
button is on the
lower right corner of the keypad next to
the
Range
button.
The LED also indicates whether the data logger is
receiving the GPS signal. See
GPS Connection
(p.
10) for more details.
Print button