User Guide

PH BUFFER SELECTION

A one point pH calibration at a value different from standard

buffer is possible by directly entering the desired calibration

value.

• Pour a small quantity of the calibra-

tion solution in a beaker and then

press CAL to enter the calibration

mode.

• After the correct password is entered,

the control action stops and the pri-

mary LCD will display the pH value

using the current offset and slope,

with the "CAL" and "

BUF

" indicators

lit and the probe indicator " " blink-

ing.

• Press SETUP and the pH value on

the secondary LCD will start blink-

ing.

• By the ,  and  keys select the pH calibration value

of the buffer.

• Immerse the electrodes in the buffer solution.

• When the reading is stable press CFM to confirm the cali-

bration.

Note During calibration with pH buffer solutions different from stan-

dard, the stability check function is not active. No “CAL” or

BUF

" indicators will blink, hence wait for the reading to stabi-

lize after having immersed the electrode in the calibration

solution.

Note If the wrong password is entered the system reverts back and

restarts displaying the pH value.

Note Calibration can be aborted by pressing SETUP before CFM .

Calibration is restarted with no changes to calibration data.