Metrohm 774 Oven Sample Processor - Manual (Page 12)

1 Overview
774 Oven Sample Processor, Instructions for use 6
1.3.5 Guide head
The tower of the 774 Oven Sample
Processor is equipped with infrared
beaker sensors which detect the
presence of a vial in front of the
tower. This "beaker test" is carried
out after every MOVE command.
1.3.6 Sample rack
Cond .
Pos.
Warning!
If sample vials on the racks have just been processed
they could have a temperature above 200°C!
The removable sample rack offers
space for 35 sample vials and a con-
ditioning vessel. A snap-in mechanism
ensures that the rack base is blocked
when the rack is removed so that no
sample vials can fall out. When the
rack is replaced this block is removed
so that the upper part of the rack with
the sample vials can be rotated.
The rack can only be exchanged in the
base position (recess in front of the
tower). The sample rack is moved to
the base position by pressing the
<RACK> key.
When replacing the rack take care that
it is positioned correctly. The guide
bolts of the turntable must be located
in the openings provided for them in
the sample rack. The recess of the
rack must surround the oven block.
Guide rod
(adjustable)
Infrared
sensors
Hollow needle
(injection needle)
Hollow needle with
Luer connection
(exhaust)
Needle adapter
made of PEEK
Heated transfer hose
(outlet heating)
Gas supply
(gas inlet)
Special position 1 (for conditioning vial)
Openings for
guide bolts
Grip