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Calibration steps
1) Power on the meter, then press “Cal.” to start the calibration
process. Press “OK” to continue with the calibration or “BACK” to
cancel.
2) The display will highlight the current calibration standard re-
quired. Insert the required NTU calibration standard in to the col-
orimeter tank. Place the shade cover over the
colorimetric tube then
press “READ” to start the calibration.
3) Repeat step 2 for each highlighted calibration standard.
4) Once all calibration standards have been processed, press “OK”
to complete the calibration and return to the main screen. Press
“SHIFT” to switch back to a different calibration standard.
5) Once complete, the test reading will be displayed. Press “Back”
to return to the main menu.