7 Maintenance
K-375 / K-376 / K-377
Operation Manual, Version E
127
7 2 6
Cleaning colorimetric sensor and mesh
∙ Rinse the sensor and the protection mesh thoroughly with distilled water
∙ Use only soft tissues to wipe the mirror surface and make sure no foreign material is on it, as this
would involve the danger of the surface getting scratched
∙ Exchange the mesh when it is deformed
7.3 Monthly maintenance
7 3 1
Calibrating the pump
It is recommended to calibrate the pumps with the same volume as used for the methods.
To perform the calibration a graduated cylinder is needed.
Example H
2
O pump
Path: System Preparation Pump Calibration
∙ Select H
2
O for “Pump”
∙ Enter the quantity to be dosed (e. g. 50 mL)
for the parameter “Dose volume”. (The last
measured volume is always shown under “Cali-
bration volume”)
∙ Press
Start
to start dosing H
2
O.
