Metrohm 750 Autosampler - Manual (Page 30)

3.4 Manual injection
750 Autosampler
27
MANUAL INJECTION
à Needle Depth POS4
Needle depth
Entry of the position to which the transfer needle is lowered at the
injection of the sample. The positions correspond to the following
displacement volumes (see also section 1.2):
POS1
310 µ L
POS3
590 µ L
POS2 450 µ L POS4 730 µ L
If sample vessels closed with 6.2743.030 filter stoppers are used then
immersion depth "
POS4
" must not be selected..
MANUAL INJECTION
à Run Injection
Run injection
After confirmation with <ENTER> the injection valve is switched
to the "FILL" position, the transfer needle is moved to the given
sample vial and lowered to the selected position. When the sam-
ple loop has been filled the injection valve is returned to the
"INJECT" position. The following display appears while the injec-
tion is being carried out automatically:
MANUAL INJECTION
Vial # N
Needle Depth POS M
SAMPLE INJECTED Manual injection running
The given sample position number N and the selected nee-
dle depth position M are displayed. When the valve has
switched to the "INJECT" position " SAMPLE INJECTED " is addi-
tionally shown in the bottom line for a short time, after which
the following display appears:
MANUAL INJECTION
COMPLETED
Manual injection completed
When the injection has been completed the transfer needle
remains in the sample vial. Further injections can now be
started from the same sample vial, for which a new immer-
sion depth must be selected.