NAVI D-25 Instruction Manual page 64

D-52/53/54/55
4.
Start the calibration by pressing the CAL key.
HOLD is displayed and the calibration is completed.
To redo the calibration, press the CAL key once
more.
5.
Press the MEAS key to enter the Measurement
mode.
If any calibration error occurs, take it as a indication that
the electrode has gone bad. Replace the old electrode
with a new one.
2 Taking Measurements
2.8 Conductivity measurement (D-54)
53