3 PH220-en-US_v3.5 3/21
Meter Description
1. Battery Compartment (under holster)
2. Rubber Holster
3. LCD Display
4. Function buttons
5. Electrode input
Basic Display Description
1. Measurement value
2. Battery status
3. Units of measure
4. Temperature units
5. Solution temperature
Note that there are other more specialized displays discussed later in the appropriate sections of
this manual.
Order of Operations
1. Calibrate the instrument as described in the Calibration section.
2. Select the temperature units of measure as explained in the pH measurement instructions.
3. Carefully follow all step by step instructions and electrode cleaning/rinsing
recommendations. Slight deviations in procedures can significantly affect test results.
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