Metrohm 746 VA Trace Analyzer - Manual (Page 185)

5.3 Set Up
746 VA Trace Analyzer / 747 VA Stand
5-34
Parameter Range; Default value / Meaning
S## User-defined sample rack
A## User-defined standard rack
B## User-defined standard rack
Homepos. Home position (position 0,0 at extreme right rear)
Measpos. Measurement position, position of the needle in the
measuring vessel
Washpos. Wash position, position of the needle during washing
Wastepo. Waste position, position of the needle when solution is
expelled
Valid entries display only
Number of rack positions
Display of the number of rack positions entered for the selected rack.
V.sample max 1...999 mL; 10 mL
Maximum sample volume
Maximum volume of the sample vessels for the selected rack.
Rack pos. display only
Rack position
Display of the position number (consecutive numbering).
X-pos./mm 0...337.5 mm; 0 mm
X position
Needle position in the x direction in mm (resolution 0.125 mm).
This is the distance which the needle has to travel from the home
position to the center of the sample vessel or to the special position in
the x direction.
Y-pos./mm 0...225 mm; 0 mm
Y position
Needle position in the y direction in mm (resolution 0.125 mm).
This is the distance which the needle has to travel from the home
position to the center of the sample vessel or to the special position in
the y direction.
Z-pos./mm 0...128.5 mm; 0 mm
Z position
Needle position in the z direction in mm (resolution 0.05 mm).
This is the maximum distance which the needle may travel from the
home position to the bottom of the sample vessel in the z direction.
Speed slow, medium, fast; slow
Transfer speed
Speed at which the solution is transferred at the selected position with
the large syringe (siphoning off or addition).
slow 9 mL/min for viscous or surfactant-containing
solutions
medium 22 mL/min for aqueous solutions
fast 50 mL/min suitable only for waste position
Wastepo.