Metrohm 711 Liquino User Manual
Page 60
3.2 Tutorial
711 Liquino, Instructions for use
54
SEQ method editing
As the sub-methods have now been defined and stored, the SEQ method
can now be assembled.
*
MODE
-
X
DOS NR
SELECT
P
•
The SEQ mode must first be activated. This sets all method parameters
to standard values. Press the <MODE> key and then <SELECT> until
‘SEQ’ appears in the display:
Di spl ay:
mode sel ect : SEQ
ENTER
YES
•
Press <ENTER>. The instrument is now in the SEQ mode.
Di spl ay:
SEQ * * * * * * * *
r eady 0. 000 mL
PARAM
B
<ENTER>
<SELECT>
<ENTER>
<SELECT>
<ENTER>
<SELECT>
<ENTER>
•
The <PARAM> key is used to access the parameter menu, where all
the possible settings for a SEQ method can be found.
Di spl ay:
par amet er s
>SEQ sequence
•
In the submenu ‘SEQ sequence’ previously defined and stored XDOS
methods can be assembled to form a sequence and the correspond-
ing pauses inserted. Press <ENTER> to open the submenu.
Di spl ay:
>SEQ sequence st ep 1
command: NO OPERATI ON
•
"1. Temperature-controlled acidification of aniline with semi-
concentrated hydrochloric acid (temperature below approx. 10 °C)“.
Use the <SELECT> key to choose the command ‘METHOD’ and con-
firm with <ENTER>.
Di spl ay:
>SEQ sequence st ep 1
met hod:
Press the <SELECT> key until the name of the method which has
been stored for the acidification appears. Press <ENTER> to accept
the selection.
Di spl ay:
>SEQ sequence st ep 2
command: NO OPERATI ON
•
"2. Pause for 5 minutes for cooling down to 0 °C.“
The <SELECT> key can now be used to select the command ‘PAUSE’
and confirm it with <ENTER>.
Di spl ay:
>SEQ sequence st ep 2
pause 00: 00: 00
Enter a pause of ’00:05:00’. (If a mistake is made press the <CLEAR>
key to delete the value and repeat the entry.)
<SELECT>
<ENTER>
Di spl ay:
>SEQ sequence st ep 3
command: NO OPERATI ON
•
"3. Temperature-controlled diazotization (temperature below 5 °C).“
Select the command ‘METHOD’ as in step 1 and then the XDOS meth-
od which has been stored for diazotization. Confirm each with
<ENTER>.
Di spl ay:
>SEQ sequence st ep 4