BEHR S5 - Starting the Automatic Distillation; Interrupting or Terminating Program; Ending the Automatic Distillation

– 20 –
behr S 5
249101
Starting the automatic distillation
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.
Press the operating control knob briefly to start the dis-
tillation.
The display shows the status of the program execution
and the remaining time.
Interrupting or terminating the
distillation program
You can interrupt or terminate the distillation program
at any time during the course of program execution by
pressing the operating control knob.
Distillation will be interrupted, and this menu will appear:
ManualEntry
Function
terminate
<<== back ==>>
Now the device waits for your decision. You can abol-
ish this distillation; but you can also try to correct some
mistake and then go on distilling. In order to do the cor-
rections, you can even access the ManualEntry menu,
perform some manual entries and then return to this
menu.
Select
Manual
Entry
in order to go to the ManualEntry
menu, e. g. to deliver an additional
amount of a reagent. When you have
finished there, return to this menu by
selecting <<== until you are back here.
==>> In order to permanently terminate the
program. Your will be returned to the
main menu.
<<== In order to continue the program.
Ending the automatic distillation
Caution! Sample vessel is hot!
After distillation do not touch the sample
vessel by hand. Use the crucible tongs or a
suitable kind of protection.
After completion of the distillation program, depress the
quick-release fastener and remove the sample vessel.
Push the PTFE steam delivery tube into its retaining
notch.
— Sodium hydroxide and - to a lesser extent – boric
acid attack the pumps and tubing. It is therefore
advisable, following the last distillation every day
to rinse the delivery lines (pumps and tubing).
The pH electrode must not be left standing dry;
it would dry out and become useless. The proce-
dures you should follow are described on
page 22 in the section „Before shutting the S 5
down.“
Do not forget to refill the reagent lines and pumps
before using the apparatus again.
Distilling