Thermo Fisher Scientific CyberScan pH 1500 - Manual (Page 42)

Instruction Manual CyberScan pH1500
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6 mV OR RELATIVE mV OPERATION
6.1 Absolute mV
Millivolts (mV) measurement is used primarily for measuring redox
potential (also known as ORP, oxidation reduction potential). You will
normally use a platinum ORP electrode, combined with a reference
electrode, to measure redox potential (ORP) of a test sample. ORP
measurements indicate the oxidizing or reducing capability of a
solution. You can also use ORP values to monitor or control solutions
requiring a set amount of oxidants or reductants. Calibration of ORP
is not necessary. However it is essential to cross-reference using
known Quinhydrone or Pre-treatment ORP solutions to ensure good
working condition and response of ORP electrode being used from
time to time.
1.
Press mode key until your meter displays the mV mode.
2.
Immerse the electrode in a sample solution.
3.
The stable icon appears when reading stabilizes. The reading
may be recorded at this time by storing into meter’s memory
using ▲ save key.