5.
Press (Note 1) and wait until “STDBY” sign disappears and mV sign ceases
twinkling, which means calibration is complete and calibration data is stored. It will go
back to measurement mode automatically with relay & analog output on and ready for new
measurement.
6.
Remove the electrode and rinse it with distilled water, and then put it into sample solution
Note:
(1) After calibration is complete, it is a must to press to confirm that calibration
data has been stored. If without pressing it, calibration data will not be stored and it
will go back to measurement mode in 20 minutes automatically and a new
measurement still follows previous calibration data.
(2) If a sign “ “ and measuring value are shown in turn on display, it suggests
that CALIB knob has reached mechanical boundary. For further adjustment, it is
available for user to turn the knob in a reverse way. If it still fails to reach desired
calibration value, it is recommended to use new ORP standard buffers or conduct
maintenance for ORP electrodes. Replace the ORP electrode if above all method fails.
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