3
2
Preparation Before First Use
2.1
Pull out the battery insulation slip, and take off the probe cap.
2.2
Rinse off the probe in clean water, then shake off excess water.
2.3
Calibrate EC at 2.77 EC. For calibration tutorial, refer to Section 3.
3
EC Calibration
3.1
Power on and remove the probe cap. Rinse the probe with clean
water and shake-dry, then submerge it in the 2.77 EC standard
solution;
shake the probe in the solution up and down for a
few seconds
to remove potential air bubbles, then let it stand.
3.2
Hold
until screen turns green. The pen starts automatic
calibration. Wait for "
Good
" to show up (in 10-15 seconds),
indicating the calibration is completed, then the pen returns to
measurement mode.
Short press any key while calibrating (in green screen) to cancel calibration and return to
measurement.
3.3
icon will show up on the lower left corner indicating the
tester is successfully calibrated.
will disappear in 30 days
after calibration, reminding you to re-calibrate EC. We
recommend calibrating the EC once every month to ensure the
accuracy. If you feel like the accuracy might be off, simply test
