Metrohm MVA-21 - Manual (Page 6)

Application Bulletin 403/1 e
Installation instruction for MVA-21
Dosing rate port 1 Maximum mL/L
Dosing rate port 2 Maximum mL/L
Dosing rate Fill port Maximum mL/L
Dosing rate special port Maximum mL/L
Tubing parameters
Port Length Diameter
Dosing port 1 Port 1 138 cm 2 mm
Dosing port 2 Port 3 0 cm 2 mm
Fill port Port 2 25 cm 2 mm
Special port Port 4 0 cm 2 mm
Valve disk
Rotating direction automatic
3.3.2. Dosing unit at 800 Dosino (2) and 800 Dosino (3)
Dosing Unit name as used in the viva method templates.
800 Dosino (MSB 2) 894/D2 2mL Brightener
800 Dosino (MSB 3) 894/D3 2mL Suppressor
Parameters for preparation
Dosing port Prep/empty Dosing port 2
Dosing rate port 1 2.0 mL/L
Dosing rate port 2 maximum mL/L
Dosing rate Fill port Maximum mL/L
Dosing rate special port Maximum mL/L
Tubing parameters
Port Length Diameter
Dosing port 1 Port 1 80 cm 0.3 mm
Dosing port 2 Port 3 0 cm 2 mm
Fill port Port 2 55 cm 2 mm
Special port Port 4 0 cm 2 mm
Valve disk
Rotating direction automatic
3.3.3. Dosing unit at 800 Dosino (4)
Dosing Unit name as used in the viva method templates.
800 Dosino (MSB 4) 894/D4 2mL Std or sample
Parameters for preparation
Dosing port Prep/empty Dosing port 2
Dosing rate port 1 2.0 mL/L
Dosing rate port 2 maximum mL/L
Dosing rate Fill port 4.0 mL/L
Dosing rate special port maximum mL/L
Tubing parameters
Port Length Diameter
Dosing port 1 Port 1 80 cm 0.3 mm
Dosing port 2 Port 3 0 cm 2 mm
Fill port Port 2 230 cm 1 mm
Special port Port 4 0 cm 2 mm
Valve disk
Rotating direction automatic
3.4. Solutions
Solutions that should automatically be dosed have to be
defined in the viva «Configuration» and need to be
assigned to the Dosing Unit which is used for the dosing.
The following table shows the solution names and assigned
Dosing Units as used in the viva method templates.
Solution name Dosing Unit
VMS 894/D1 50mL VMS
Brightener concentrate 894/D2 2mL Brightener
Suppressor concentrate 894/D3 2mL Suppressor
Std or sample 894/D4 2mL Std or sample
S OLUTION TYPE for «VMS» and «Suppressor concentrate»
has to be A UXILIARY SOLUTION , for «Brightener concentrate»
and «Std or sample» it is S TANDARD SOLUTION .
For a step by step description please see the Tutorial
chapter «5.1.4 Define solutions».
3.5. Devices – 858 Professional Sample Processor for
CVS
The «858 Professional Sample Processor for CVS» is
automatically recognized by the viva software. When an
instrument is connected for the first time it needs to be
entered in the viva «Configuration». The corresponding
dialogue will pop up automatically.
Device name* 858 Professional Sample Processor 1
* as used in the example method
For a step by step description please see the Tutorial
chapter «6.1.1 Configuring the instrument».
3.5.1. Tower
Tower parameters
Max. stroke path 130 mm
Min. beaker radius Off
Lift rate 25 mm/s mm/s
Axial distance 166.0 mm
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