BUCHI KjelSampler K-377 - Manual (Page 70)

6 Operation
70 K-375/376/377 Operation Manual, Version B
6 .6 .1 System Preparation
Within the area System Preparation all tasks related to the preparation of the system, like Preheating,
Priming, Cleaning, and Aspiration can be defined and performed. In addition periodic tasks like elec-
trode or pump calibration and certain manual tasks related to burets, a sampler, or pH measurement
can be performed.
Preparative Tasks
(screenshot stretched)
The System Preparation dialog is subdivided in two
sections:
Preparative Tasks
• Preheating
• Priming
• Cleaning
• Aspiration
Periodic Tasks
• Calibration pH Electrode
• Buret functions
• Pump Calibration
• Sampler functions
• Measuring pH or mV
Preheating
The glass parts of the distillation system have to
be preheated prior to analysis. This is done by
means of a clean and empty sample tube. It is
recommended to perform a preheating, when the
glassware has cooled down. A status message on
the status view will inform the user if preheating is
required.
If an auto sampler is configured under “Settings”,
select either “Unit only” or “Via Sampler” for
“Preheating cycle”.
For “Unit only” only the glassware and tubing of the
K-375 device is heated up. With the option “Via
Sampler” also glassware and tubing of a connected
sampler can be included for the heat-up procedure.
The duration of the preheating procedure (“Distillation
time”) can not be changed.
Press START to start the preheating procedure.