Metrohm 813 Compact Autosampler - Manual (Page 27)

3 Operation
813 Compact Autosampler
21
3.2 Configuration
To select a method or to define the work position switch on the
813 Compact Autosampler while holding down the <HOLD>
key. The green LED blinks once a second while you can enter the
desired settings.
Keyboard functions for configuration:
(after Power on while <HOLD> depressed, green LED
blinks)
START
Accepts the setting of a value and moves on to the next value.
HOLD
Selection of method or manual lift movement for the definition of
the work position.
STOP
RESET
Cancels a setting or closes the configuration mode after a
settings is accepted with <START>.
Four different Autosampler methods are available. They
apply to the following tasks:
Single injection with air gap in after each determination, the
needle will be drawn out of the sample.
Single injection without air gap, the needle rests in the sam-
ple during the determination.
Double injection of each sample, no air gap, the needle re-
mains in the sample during the determination.
Triple injection of each sample, no air gap, the needle re-
mains in the sample during the determination.
Before running the 813 Compact Autosampler for the first time,
the work position of the lift has to be set correctly. The work
position defines the position of the suction needle while aspirat-
ing the sample. It depends mainly from the size of the sample
tubes.