Milwaukee MW600 User Manual
PROBE POLARIZATION:
• A dissolved oxygen probe must be polarized to function
properly.
• To polarize the probe, the fully assambled probe must be
connected to the meter and the meter must be on.
• During polarization (and during measurement), approximately
800 mV is applied to the cathode and anode inside the
membrane and a chemical reaction occurs. During the
polarization period excess oxygen in the electrolyte is
consumed. During this phase, probe movement that “moves”
the electrolyte will yield jumpy measurements. When a probe
is totally polarized moving the probe will not effect the
measurement.
membrane and a chemical reaction occurs. During the
polarization period excess oxygen in the electrolyte is
consumed. During this phase, probe movement that “moves”
the electrolyte will yield jumpy measurements. When a probe
is totally polarized moving the probe will not effect the
measurement.
• When the meter is turned off, the probe will revert to it’s
prepolarized state. Before using again, the probe will have
to be repolarized.
to be repolarized.
CALIBRATION PROCEDURE:
The calibration is very simple and fast.
• Make sure the probe is ready for measurements
(see Probe Preparation), i.e. the membrane is
filled with electrolyte and the probe is connected
to the meter.
filled with electrolyte and the probe is connected
to the meter.
• Switch the meter on by pressing the ON/OFF
key.
• For an accurate calibration, it is recommended
to wait at least 15 minutes to ensure polarization
of the probe.
of the probe.
• Remove the protective cap from the D.O. probe.
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