Metrohm 711 Liquino - Manual (Page 143)

5. The 711 Liquino in synthesis laboratories
711 Liquino, Instructions for use 137
Two useful and simple methods for auxiliary tasks which are often
repeated:
Pumping a chemical back from the dosing cylinder into the storage vessel
(excerpt from the method):
mode: XDOS user met hod: BACK1
par amet er s
>XDOS par amet er
XDOS t ype: vol ume&r at e
vol ume 10. 0 mL
f eed r at e max mL/ mi n
t emp. measur i ng: of f
f i l l r at e max mL/ mi n
aut o f i l l : of f
>XDOS dosi ng uni t s
set up: si ngl e
dosi ng dr i ve: DOS1
dos. uni t : def aul t
por t use. : cust om
dosi ng por t 2
f i l l i ng por t 4
wast e por t 2
← One method for each connected Dosino
← Total volume of the
dosing cylinder
← No refilling
← Dosing unit address
← Important! Special port allocations. In this case the rea-
gent is dosed into the storage vessel.
If required air will be aspirated from the storage vessel.
Rinsing the dosing unit with an inert solvent without disassembling the
dosing unit. Connect the solvent to Port 3 with the tubing (excerpt from
the method):
mode: XDOS user met hod: RI NSE1
par amet er s
>XDOS par amet er
XDOS t ype: vol ume&r at e
vol ume 20. 0 mL
f eed r at e max mL/ mi n
t emp. measur i ng: of f
f i l l r at e max mL/ mi n
aut o f i l l : of f
>XDOS dosi ng uni t s
set up: si ngl e
dosi ng dr i ve: DOS1
dos. uni t : RI NSE
por t use: cust om
dosi ng por t 1
f i l l i ng por t 3
wast e por t 1
← One method for each connected Dosino
← Enter 2 to 3 times the cylinder volume
← No refilling
← Dosing unit address
← Special dosing unit defined, s. below
← Important! Special Port allocations.
Dosing via Port1, but aspirate solvent via Port 1.
After the above rinsing method has been carried out, press
<EXCHANGE> in order to prepare the dosing unit for disassembly. The
dosing cylinder remains filled with solvent. If this is not required then you
can empty all tubing automatically by pressing <EMPTY>. If the dip
tube in the storage vessel under the Dosino is not emptied then a spe-
cial dosing unit can be defined (e.g. RINSE, see above method) in which
the tubing length 0 mm is given for Port 2. For configuration see follow-
ing page.
4 2
1 3
4 2
1 3