Metrohm 730 Sample Changer - Manuel (Page 36)

3.1 Tutorial
730 Sample Changer, Introduction 33
<START>
Display: 4 CTL:Rm: START device1
• In this line the Titrino that is connected via the remote interface
is started.
Display: 5 SCN:Rm : end1
• In this line the SCAN command is used to check the end of the
titration. The Titrino sends a signal (EOD) at the end of the titra-
tion. Afterwards the sample changer will complete the sample
sequence.
• After you have started the command you can interrupt it with
<STOP> in case you do not want to wait for the completion of
the titration. Otherwise wait for device1 to send the EOD-Pulse.
Tracing may be continued without pressing the <STOP> key.
<START> Display: 6 STIR: 1 : off s
• In this line stirrer 1 is turned off.
HOLD
LEARN
<ENTER>
Display: 7 LIFT: 1 : rinse mm
• In this line the lift on tower 1 is put into the rinsing position.
• With this command you can become acquainted with the
LEARN mode. It allows the user to manually set the parameters
of a command on a trial basis.
• Press <LEARN> to access the LEARN mode. The blinking
LEARN-LED indicates that the 730 Sample Changer is ready to
execute the command.
• Now move the lift into the desired position with the <ê> and
<é> keys. You will notice that the current lift position is always
indicated "live". During execution of the command the LEARN-
LED is lit continuously. Accept the lift position that has been set
by pressing <ENTER> and thereby exit the LEARN mode. The
LEARN LED goes off again.
HOLD
LEARN
HOLD
LEARN
Display: 8 PUMP 1.1 : 2 s
• In this line pump 1 on tower 1 is switched on to rinse the elec-
trode and titrating tip for 2 seconds.
• Here, you can use the LEARN mode to optimize the rinsing time
too.
• In this case, as with the other "teachable" commands (the LIFT
command is an exception), pressing the LEARN key causes
immediate execution of the corresponding command. The
elapsed time is also displayed here "live". By pressing the
<LEARN> key again the command can be interrupted.
• The blinking LED indicates that the sample changer is still in the
LEARN mode. If you now switch the pump back on with the
<LEARN> key, you will see that the "live" value (rinsing time) is
now added to the existing value.