9 Operating menus
n User qualification: instructed user, see
Ä Chapter 3.4 ‘Users' qualifications’
on page 14
A1617
▶CELLCONST
ℂ CAL
STOP
Fig. 22: Overview of the first level menus
9.1 Calibrating
[CAL]
the con‐
ductivity sensor
The following calibration functions are
available depending on the type of sensor:
n Calibration of the cell constant
n Calibration of the temperature coeffi‐
cient
Correct sensor operation
–
Correct measuring and metering
is only possible if the sensor is
working perfectly
–
Observe the operating instruc‐
tions for the sensor
Operating menus
55