Orion Benchtop pH/ISE Meter Instruction Manual
Other Measurement Modes
51
D. Orion 525Aplus, 720Aplus, 920Aplus
Redox Measurements
Measurements with redox (oxidation-reduction potential) electrode(s) are
performed in the millivolt or relative millivolt modes. Perform the
following steps
1. Securely connect electrode(s) to input 1 or 2.
2. For Orion 920Aplus only:
a. Identify the electrode type as REDOX. Press 2nd then electrode id.
b. Select 25, redox, then press yes
3. Press mode until mV is displayed. Measure redox potentials
directly from the meter display.
4. To set redox potential to a predetermined value, press mode until
mV is displayed. Follow instructions for setting the relative
millivolt offset.
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