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5. When the "WAIT" icon disappears, the reading is then "LOCK" and
will not respond to further changes from the sample. The mV value
is the sample reading.
[Note: For samples that are inherently unstable, the unit will not
AUTOLOCK. In this case, use the pH NON- AUTOLOCK mode for
measurements.]
b. Measurement in the mV NON-AUTOLOCK mode
1. Connect the optional combination ORP electrode to the BNC
connector of the unit.
2. Press "Mode" key until "mV" icon lights up.
3. Rinse electrode with distilled water and immerse it in sample to be
measured.
4. Allow sufficient time for the display to stabilize. The instrument will
display the mV value of the sample.
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