Manual
11
5.7
Conductivity calibration
For calibration, a conductivity standard solution is necessary, e. g. 1.413mS standard solution for a
measurement range of 2 mS, 80 µS standard solution for a measurement range of 200 µS and 12.88 mS
for a measurement range of 20mS.
To carry out a conductivity calibration:
1.Put the plug of the conductivity probe into the CD socket (15)
2.Switch on the device.
3.
Select the “Cd“ measurement mode.
4.Hold the handle of the probe and dip the complete probe head into the solution.
6.Shake the probe to make sure that the air bubble escapes from the probe head.
6.The display will show the conductivity value.
7.Push the REC button anad the Hold button at the same time until the following is displayed:
8.Push the Enter button. The measurement value will be shown on the upper and on the lower side of the
display.
9.Use the arrow buttons to set the upper value exactly to the value of the standard solution.
value of the stadard solution
10.Push the Enter button so that the data are saved and the calibration is finished.
Note:
If you only want to carry out a one-point calibration, it is sufficient to calibrate the measurement
range of 2 mS. If you make a calibration with several points, you must first calibrate the range of 2 mS
and afterwards the other ranges.
5.8
Salt content measurement
To measure the salt content:
1.Put the plug of the conductivity probe into the CD socket (15)
2.Switch on the device.
3.
Select the “SALt“ measurement mode.
4.Hold the handle of the probe and dip the complete probe head into the solution.
6.Shake the probe to make sure that the air bubble escapes from the probe head.
6.The display will show the salt content in % (1 % is equivalent to 10 g/kg).
5.9
Calibration of the salt content measurement
If you have already carried out a calibration of the conductivity measurement, a calibration oft he salt
content measurement is not necessary.
5.10 Dissolved oxygen measurement
CAUTION:
When first using the probe along with the meter, urgently calibrate before starting with the
measurement. In order to ensure exact measurements, it is recommended to carry out a calibration
before every measurement.