6 Operation
K-375 / K-376 / K-377
Operation Manual, Version E
121
7 1 2
Before sample determination (colorimetry)
∙ Set up the receiving vessel as described in Section 5.9.2
∙ Rinse the titration hoses (Path: System Preparation
Buret functions
Buret function “Dose”).
∙ Preheate the system (Path: System Preparation
Setpoint colorimetric sensor
Preheating
before Setpoint), see also chapter “6.6.1 System Preparation”.
∙ Perform Setpoint determinations as described in chapter “6.6.1 System Preparation” (Path:
System Preparation
Setpoint colorimetric sensor)
∙ Prime the system (Path: System Preparation
Priming), see also chapter “6.6.1 System Prepara-
tion”.
∙ Submerge the sensor into the measuring medium at least up to the measuring cell.
NOTE
All glass parts must be warm before the analysis begins. Therefore a preheating of the system is
necessary if more than 15 minutes pass between two determinations (Path: System Preparation
Preheating). Cleaning between samples is not necessary, unless sample deposits are found in the
splash protector. (Path: System Preparation
Cleaning).
