Myron L PS6 - Manual (Page 20)

16
b. pH Gain Calibration
Important: Always calibrate or verify your P
ool
P
ro
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 7 and 8).
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. Refill sensor well again with same buffer solution.
5. Press or 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 7
BUFFER
pH
CAL
Figure 8
pH
BUFFER
CAL