User Guide

OFFSET AND SLOPE DIRECT SELECTION

Whenever the pH electrode offset and slope parameters are

known, it is possible to directly calibrate the meter entering

the electrode parameters.

• Press the “CAL DATA” and then “SETUP”. The LCD will

show the default offset of -5.0 mV.

• Using the ,  and  enter the electrode offset param-

eter (the value must be between -100 and +100 mV).

• Confirm the value by pressing CFM.

If offset is invalid the “WRONG”

indicator will blink on the LCD.

• The LCD will then show the default

slope for Hanna electrodes: 57.5

mV/pH.

Note If CAL DATA or LCD are pressed before CFM, calibration is

aborted without changing the data of previous calibration.

• Using the ,  and  enter the electrode slope param-

eter (the value must be between +40 and +80 mV/pH).

• Confirm the value by pressing CFM. If

slope is invalid the “WRONG” indi-

cator will blink on the LCD.

Note Press LCD or CAL DATA to exit cali-

bration. The slope will be set to the

default value (57.5 mV/pH).

Note Calibration data can be viewed pressing CAL DATA while in

normal mode but no pH buffer values will be displayed dur-

ing the data scrolling on LCD.