Metrohm MVA-21 User Manual
Application Bulletin 403/1 e
Installation ins truction for MVA-21: 894 Profession al CVS fully automat ed for CVS determinations
The «MVA-21» is a fully automated system for the
determination of suppressor and brightener in plating
solutions.
• PC controlled operation.
• Manual operations:
o Filling of the sample vials on the Sample
Processor with suppressor standard solution,
plating bath samples and rinsing solution.
• Automatic addition of 4 solutions: VMS, brightener
concentrate, suppressor conc entrat e and suppressor
standard or plating bath sample.
• Automatic rinsing of the measuring vessel.
• Method change during the determination series is
possible.
• Applications:
o Analysis of suppressor concentration in plating
baths with CVS.
o Analysis of brightener concentration in plating
baths with CVS.
Content
1. Instruments and accessories .......................................... 2
2. System setup .................................................................. 2
2.1. Electrical connections ......................................... 2
2.2. Tubing connections for rinsing and draining of the
measuring vessel ................................................ 3
2.3. Tubing connections for automatic dosing of
standard solutions and auxiliar y solution s ........... 4
3. viva Configuration ........................................................... 5
3.1. Devices – 894 Profesional CVS .......................... 5
3.2. Sensors/Electrodes ............................................. 5
3.3. Dosing units ........................................................ 5
3.4. Solutions ............................................................. 6
3.5. Devices – 858 Professional Sample Processor for
CVS ..................................................................... 6
3.6. Needle adjustment .............................................. 7
4. viva «Method» ................................................................ 8
4.1. Method run .......................................................... 8
4.2. Evaluation ........................................................... 9
5. Operation...................................................................... 10
5.1. Suppressor determinat ion seri es ...................... 10
5.2. Brightener determination series ........................ 11
6. Remarks ....................................................................... 12
6.1. Single additive setup ......................................... 12
6.2. Combination of applications .............................. 12
Fig 1 MVA-21
Page 1 of 12
6.3. Storing dosing units........................................... 12
6.4. Storing electrodes ............................................. 12
6.5. Waste container ................................................ 12
Application Bulletin 403/1 e
Installation instruction for MVA-21
Professional CVS Systems
Sample Processor
1
6.2141.300
Remote cable
1
6.5339.0x0
CVS Electrodes kit
viva
1. Instruments and accessories
Quantity Article number
1 2.894.1210
2 2.800.0010 800 Dosino
1 2.843.0240
1 2.858.0110
1 6.5339.500
1 6.6065.10X
894 Professional CVS
semiautomated
Membrane Pump Station for
858 Professional CVS
Equipment with 2 Dosing
Units for VA/CVS
1.0
2. System setup
2.1. Electrical connections
Page 2 of 12
Fig 2 Electrical connections
Please note! The cable 6.2141.300 has to be connected to
«Remote 2» of the 843 Pump Station.
Application Bulletin 403/1 e
Installation instruction for MVA-21
2.2. Tubing connections for rinsing and draining of
the measuring vessel
Fig 3: Tubing connections for rinsing and draining of the measuring
vessel
Page 3 of 12
Fig 4: Detailed view of the measuring head
Application Bulletin 403/1 e
Installation instruction for MVA-21
2.3. Tubing connections for automatic dosing of
standard solutions and auxiliary solutions
Fig 5: Tubing connections for automatic dosing of standard
solutions and auxiliary solutions
Fig 7: Detailed view of the measuring head
Fig 6: Detailed view to mount the T-connector
Page 4 of 12
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