Performing a measurement
1. Press on “
ON/OFF
”.
2. Remove the protective cover and set the tester in the solution to be measured.
3. Stir with the tester in the solution until the value in the display has stabilized.
4. The pH measurement is complete.
5. Rinse the electrode with clean water and the tester is ready for the next measurement.
Maintenance
The electrode has to be kept moist at all times.
This can be done easily by dripping a couple of drops of the keep-in solution (KCL), pH 7 or
pH 4 in the protective cover.
DO NOT USE DISTILLED OR DEIONIZED WATER AS KEEP-IN SOLUTION.
Replacing the batteries
If the display shows the error message “Eb”, then the batteries should be replaced.
Open the battery compartment on the top of the tester.
Place the batteries according to the polarity (the + and the -), as indicated in the battery
compartment.
ERROR messages
“Er” - The value is outside the range of the meter.
“Ec” - The calibration solution is (too) dirty, use clean calibration solution.
“Eb” - The batteries should be replaced.