Instruction manual

11
7. Press the V or W key to select the next buffer
value you want to calibrate (pH 4.00, 7.00 or
10.00).
See Figure 12.
8. Rinse the probe with de-ionized water or a
rinse solution, and place it in the next pH
buffer.
9. Follow steps 5 to 8 for additional calibration
points (up to 3 values).
10. When calibration is complete, press
CAL/MEAS to return to pH measurement
mode.
NOTES
To exit from pH Calibration mode without confirming calibration, DO NOT press ENTER in
step 6. Press CAL/MEAS instead.
If the selected buffer value is not within ±0.50 pH from the measured pH value:
The electrode and buffer icon blink and the ERR annunciator appears in the lower left corner
of the display. These indicators also flash if the buffer used is not the same as the buffer
value on the secondary display.
Figure 12 - Next calibration point