BUCHI KjelSampler K-377 - Manual (Page 75)

6 Operation
75 K-375/376/377 Operation Manual, Version B
Pump calibration
Select the pump to be calibrated (H
2
O, NaOH or
H
3
BO
3
).
Enter the target “Dose volume”, e.g. 50 mL.
Press START to start the calibration procedure.
Measure the actually dosed volume and enter it as
calibration volume in the displayed screen. Repeat
the calibration procedure, until the measured and
the dosed volume correspond.
An acceptable difference at 50 mL is ±5 mL.
NOTE
H
2
O and NaOH can be dosed into the sample
tube and then poured into a graduated cylinder for
measurement.
The H
3
BO
3
can be dosed directly into the receiving
vessel and then poured into a graduated cylinder.
Sampler functions
The actions “Move to zero position” and “Move to
service position” are available for both sampler types
(1-tray and 2-tray). For a 2-tray sampler the arm is
moved to the corresponding zero or service position
of the tray, the arm is actually positioned in.
For a 2-tray sampler it is also possible to move the
arm of the sampler with “Move to tray A” from tray B
to the zero position of tray A and vice versa.
Press START to move the arm to the selected posi-
tion.