User Guide

34
OFFSET AND SLOPE DIRECT SELECTION
It is possible to edit directly the values of the offset and the
slope to calibrate the instrument (for pH).
• Press (ALT+) CAL DATA entering the last calibration data
scrolling and then press (ALT+) SETUP.
• A password entry is required. If a wrong password is con-
firmed, the instrument reverts back to the normal mode.
• Otherwise, if correct password is con-
firmed, the LCD will appear as
follows: the secondary LCD shows
“OFF” to indicate “offset” while the
primary one shows offset default
value. The first digit on the primary
LCD is blinking, and it is possible to
change it by pressing  or  key.
• Pressing the  key will move
to the second digit while the
first one will be fixed.
• Pressing repeatedly the  key will move cyclically through
the digits of the primary LCD.
• Once selected the desired value, press CFM to confirm the
calibration offset.
• If the offset is invalid, the “WRONG”
indicator will blink on the display.
Note If DISPLAY or (ALT+) CAL DATA are pressed before CFM,
calibration is aborted without changing the previous calibra-
tion data.