Metrohm 840 PC Control 5.0 / Touch Control - Manual (Page 328)

6.5 Liquid handling – schematic process
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PC Control / Touch Control
6.5 Liquid handling – schematic process
6.5.1 Port definitions of the dosing unit
VENT
Port 1
Port 2
Port 4
Port 3
Fig. 6.5: Port occupancy of the Dosing unit
VENT – is intended for venting the storage bottle and is normally fit-
ted with an adsorber tube (filled with a drying agent).
Port 1 – is side-mounted; its default definition is as dosing port 1.
Port 2 – is located at the base; its default definition is as filling port
and it is normally fitted with a riser tube.
Port 3 – is side-mounted; its default definition is as dosing port 2.
Port 4 – is located at the base; its default definition is as air inlet port
for emptying the tubing system.
6.5.2 Pipetting equipment
Together with an 800 Dosino as the dosing drive (or "pipetting pump")
the USB Sample Processor is exceedingly suitable for pipetting liquids
in a volume range between 0.1 and 10 mL.
Necessary equipment
• USB Sample Processor with 786 Swing Head
• Swing Head with transfer head (e. g. 6.1462.030 or 6.1462.040)
• 800 Dosino with 2 mL, 5 mL, 10 mL or 20 mL dosing unit
• 6.1562.020 Pipetting tubing (3 mL) or 6.1562.100 (10 mL) with
drawn-out tip
• Any sample rack
• Possibly 6.2001.070 Support Stand with titration cell