Metrohm MVA-20 User Manual
Application Bulletin 402/1 e
Installation ins truction for MVA-20: 894 Profession al CVS fully automat ed for CVS determinations
The «MVA-20» is a fully automated system for the
determination of suppressor and brightener in plating
solutions in small sample series.
• PC controlled operation.
• Manual operations:
o Filling of the sample vials on the Autosampler
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 auxiliary solutions .............. 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 – 919 IC Autosampler plus for CVS ......... 6
4. viva «Method» ................................................................ 8
4.1. Method run ............................................................. 8
4.2. Evaluation .............................................................. 9
5. Operation...................................................................... 10
5.1. Suppre ssor determi nation series ......................... 10
5.2. Brightener determination series ........................... 11
6. Remarks ....................................................................... 12
6.1. Single additiv e set up ............................................ 12
6.2. Combination of applications ................................. 12
6.3. Storing dosing units ............................................. 12
Fig. 1: MVA-20
Page 1 of 12
6.4. Storing electrodes ................................................ 12
6.5. Waste containe r ................................................... 12
Application Bulletin 402/1 e
Installation instruction for MVA-20
Systems
CVS
1
6.2141.300
Remote cable
1
6.5339.0X0
CVS electrode kit
1. Instruments and accessories
Quantity Article number
1 2.894.1210
2 2.800.0010 800 Dosino
1 2.843.0240
1 2.919.0120
1 6.5339.500
1 6.6065.10X viva 1.0
894 Professional CVS
semiautomated
843 Membrane Pump
Station for Professional CVS
919 IC Autosampler plus for
Equipment with 2 Dosing
Units for VA/CVS
2. System setup
2.1. Electrical connections
Fig. 2: Electrical connections
Please note! The cable 6.2141.300 has to be connected to
«Remote 2» of the 843 Pump Station.
Page 2 of 12
Application Bulletin 402/1 e
Installation instruction for MVA-20
2.2. Tubing connections for rinsing and draining of the
measuring vessel
Fig. 3: Tubing connections for rinsing and draining of the measuring
vessel
Fig. 4: Detailed view of the measuring head
Page 3 of 12
Application Bulletin 402/1 e
Installation instruction for MVA-20
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 how to mount the T-connector
Page 4 of 12
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