18
5. The appropriately circled indicator (L, M or H) will appear on the display
when a calibration has been completed within one power on cycle.
6. For a two or three point calibration, repeat steps 1-5 with the remaining
buffers.
7. When the TRACER is turned off, the circled indicator con
fi
guration and the
calibration data will be memorized.
MEASUREMENT
1. For small samples
fi
ll a sample cup to the 20 mL line with the test sample.
Sample depth must be greater than or equal to 1.5 inches.
2. Press the ON/OFF button. (8888 and then SELF CAL will appear in the
display during the initial diagnostics).
3. Press and hold the MODE/HOLD button to scroll to the pH mode.
4. Immerse the TRACER electrode in the sample. Make sure the electrode is
completely submersed.
5. Slowly stir the sample with the TRACER to remove air bubbles.
6. The reading will
fl
ash until it has stabilized. This may take several seconds
depending on the buffer capacity of the sample.
7. Rinse the electrode in distilled water. Replace the cap.
