22
Calibration
The detector is calibrated in the factory with respect to conductivity and temperature. The
conductivity can, if required, be re-calibrated by the user, for example after the measurement
cell has been changed. At the same time, for every possible condition of flow, three
calibration solutions with increasing salt content are injected one after another. In each
case, after the measurement cell value has stabilised, the calibration command is issued (via
the chromatography data system or the terminal). To avoid electrical contact with the
measurement electrode, which would distort the measurement value, the needle involved
must not be inserted into the screw joint at a depth of more than 12 mm or 0.5 inches. The
recommended calibration points are shown in Annexe 3.
Fig. 10: Calibration with syringe
1 Detector
2 Tubing with screw-on ferrule
3 Syringe with blunt needle
max. 12 mm / 0.5 in. deep!
1
2
3
