Myron-l PS6FCE User Manual download pdf (Page 24)

b. pH Gain Calibration

Important: Always calibrate or verify your Po o l Pr o with a pH 7 buffer

solution before adjusting the gain with acid or base buffers, i.e., 4 and/or

10, etc. Either acid or base solution can be used for the 2nd point “Gain”

calibration and then the opposite for the 3rd point. The display will verify

that a buffer is in the sensor well by displaying either “Acd” or “bAS”.

1. The pH calibration mode is initiated by either completion of the

pH Zero Calibration, or verifying 7 buffer and pressing the

twice while in pH measurement mode.

2. At this point the “CAL”, “BUFFER” and “Acd” or “bAS”

annunciators will be displayed (see Figures 6 and 7).

NOTE: If the “Acd” and “bAS” indicators are blinking, the unit is indicating

an error and needs either an acid or base solution present in the sensor

well

3. Rinse sensor well 3 times with acid or base buffer solution.

4. Rell sensor well again with same buffer solution.

5. Press

until display agrees with buffer value.

6. Press

to accept 2nd point of calibration. Now the

display indicates the next type of buffer to be used.

Single point Gain Calibration is complete. You may continue for the 3rd

point of Calibration (2nd Gain) or exit by pressing any measurement key.

Figure 6

BUFFER

CAL

Figure 7

BUFFER

CAL

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Myron-l PS6FCE User Manual Page 24