3
STAGE 1
CONDITIONING
Condition your tester by
immersing it in tap water for at
least 30 minutes before use.
DO NOT
use de-ionized water.
CALIBRATING THE
TEMPERATURE
Before taking measurements, it
is important to calibrate your
tester to read accurately. This
procedure is only done once in
a long while as the calibration
for temperature will remain
accurate unless used under
severe conditions.
FOLLOW THESE STEPS:
1.
Press the
ON
key
The tester is now in
Measurement mode.
2.
Place a standard
thermometer in the sample for
reference. If using a mercury
thermometer, allow some time
to reach correct reading.
3.
Then place tester into the
same sample. Allow some time
for sensor to stabilize.
4.
Press
MODE
to select the pH
measuring mode. Then press
the
CAL
key.
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