User Guide

• If an offset calibration has been

made, the instrument will turn to

“slope” calibration (as indicated by

the “SLO” message on the second-

ary display. The slope value is shown

on the primary LCD and the first digit

is blinking to permit modifications).

• Press the  or  key to modify the value or  key to move

to the next digit.

• Once selected the desired value, press CFM to confirm.

• After confirmation the instrument will turn back to normal

mode.

• If the slope is invalid, the ”WRONG” indicator will blink

on the LCD.

Note Press DISPLAY or (ALT+) CAL DATA to exit calibration. The

slope will be set to the default value (57.5 mV/pH).

Note After direct selection of offset and slope, calibration data can

be viewed by pressing (ALT+) CAL DATA while in normal

mode, but no pH-buffer values will be displayed during the

data scrolling on the LCD.