Performing the (re)filling
The following menu appears:
Select MANUAL ENTRY. The display will then appear
as follows:
NaOH
Steam
Dil. H2O
<<== ==>>
Select DIL.H
2
O and hold the operating control knob
depressed until water flows into the sample vessel.
Select NaOH and hold the operating control knob
depressed until sodium hydroxide flows into the sample
vessel.
Now select ==>> to proceed to the next menu.
Select H
3
BO
3
and hold the operating control knob
depressed until boric acid flows into the titration vessel.
Select DrainSample and hold the operating control
knob depressed until the liquid in the sample vessel has
been drained.
Select DrainTitr and hold the operating control knob
depressed until the liquid in the titratiopn vessel has
been drained.
Press the quick-release fastener (4.22) down and
remove the sample vessel.
Push the PTFE steam delivery tube into its retaining
notch (4.21).
By repeatedly pressing <<== you will return to the main
menu.
Test run
Especially reliable and reproducible results will be
obtained if you perform a „warm-up“ distillation without
sample before starting your daily analyses.
In the course of this first „warm-up“ distillation, the
steam will come in contact with cold glass compo-
nents, leading to a higher degree of condensate
formation. This could lead to excessive dilution of an
actual sample and to an excessive volume of liquid in
the sample vessel.
The introduction of steam at a temperture of approx.
106°C results in noises, which can be loud. These
noises are no cause for concern. With utilization of
our high-quality behrotest
®
sample digestion vessels,
models SR 3i, KJ 500 or KJ 750, the risk of glass
breakage is minimal.
Open the water tap.
Inserting the glass vessel
Glass can break and cause injury! In work-
ing with glass components, observe all
appropriate safety precautions.
Risk of burns and injuries! When working
with acids and bases, follow the safety
guidance in the pertinent Safety Data
Sheets.
Insert the steam delivery tube into an empty sample
vessel. Press the quick release fastener (4.22) down
and insert the sample vessel.
Check to insure that the sample vessel is firmly seated
against the Viton stopper (4.26).
Switching the steam distillation apparatus on
Close the protective door and turn the apparatus on
using the MAIN SWITCH.
Following the initialization, the main menu appears:
The menu selection Start is highlighted.
Starting the test run
Caution! Sample vessel is hot! During the
distillation and for a short time thereafter,
do not touch any parts of the distillation
system behind the plexiglass door.
Select Options in the main menu.
Distilling
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