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884 Professional VA
Metrohm 884 Professional VA User Manual
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884 Pr
ofessional V
A
Manual – Short Instructions
8.884.8004EN / 2019-09-20
2
Table of Contents
Default Chapter
5
Table of Contents
5
1 Introduction
11
About These Short Instructions
11
Instrument Description
12
Instrument Versions
13
Intended Use
14
About the Documentation
15
Figures
15
Further Information and Literature
15
Symbols and Conventions
15
References
16
Safety Instructions
17
General Notes on Safety
17
Flammable Solvents and Chemicals
17
Electrical Safety
17
Personnel Safety
18
Metallic Liquid Mercury
19
Tubing and Capillary Connections
19
Recycling and Disposal
20
2 Overview of the Instrument
21
Front
21
Figure 1 Front 884 Professional VA
21
Rear
22
Figure 2 884 Professional VA Rear
22
MME Measuring Head
24
MME Measuring Head Overview
24
Figure 3 MME Measuring Head - Overview
24
MME Measuring Head Connector Plate and Measuring Head Insert
25
Figure 4 MME Measuring Head Connector Plate
25
Figure 5 MME Measuring Head Insert
27
Tubing Connector (Measuring Head Arm)
28
Figure 6 Tubing Connector (Measuring Head Arm)
28
RDE Measuring Head
30
RDE Measuring Head Overview
30
Figure 7 RDE Measuring Head - Overview
30
RDE Measuring Head Connector Plate and Measuring Head Insert
31
Figure 8 RDE Measuring Head Connector Plate
31
Figure 9 RDE Measuring Head Insert
33
Tubing Connector (Measuring Head Arm)
35
Figure 10 Tubing Connector (Measuring Head Arm)
35
SPE Measuring Head
36
SPE Measuring Head Overview
36
Figure 11 SPE Measuring Head - Overview
36
SPE Measuring Head Connector Plate and Measuring Head Insert
37
Figure 12 SPE Measuring Head Connector Plate
37
Figure 13 SPE Measuring Head Insert
39
Tubing Connector (Measuring Head Arm)
40
Figure 14 Tubing Connector (Measuring Head Arm)
40
3 Installation
42
Setting up the Instrument
42
Packaging
42
Checks
42
Location
42
Equipping the MME Measuring Head
42
Preparing the MME Measuring Head
43
Figure 15 Removing the Stopper from the Pipetting Opening
43
Figure 16 Removing the Measuring Head Cover
44
Figure 17 Inserting the Gas Inlet
45
Figure 18 Connecting the Gas Inlet
46
Figure 19 Screwing in the Flexible Shaft
46
Figure 20 Inserting and Connecting the Stirrer
47
Preparing Electrodes and Inserting Them in the MME Measuring Head
48
Figure 21 Inserting the Stopper
48
Figure 22 Inserting the Working Electrode
50
Figure 23 Connecting the Working Electrode
51
Figure 24 Connecting the Inert Gas Inlet
52
Figure 25 Assembling the Reference Electrode with the Electrolyte Vessel
54
Figure 26 Connecting a Reference Electrode
55
Figure 27 Structure of the Auxiliary Electrodes
56
Inserting the MME Measuring Head
58
Figure 28 Connecting the Auxiliary Electrode
58
Figure 29 Installing the Measuring Head Cover
59
Figure 30 Inserting the Stopper in the Pipetting Opening
59
Figure 31 Do Not Touch the Drive Disk
60
Connecting the Inert Gas Supply
61
Figure 32 Inserting the Measuring Head
61
Figure 33 Gas Washing Glass
62
Figure 34 Nipple for Inert Gas Supply
62
Equipping the RDE Measuring Head
63
Preparing the RDE Measuring Head
63
Figure 35 Removing the Stopper from the Pipetting Opening
63
Figure 36 Removing the Measuring Head Cover
64
Figure 37 Inserting the Gas Inlet
65
Preparing Electrodes and Inserting Them in the RDE Measuring Head
66
Figure 38 Connecting the Gas Inlet
66
Figure 39 Removing the Protective Cap from the Electrode Tip
67
Figure 40 Tightening the Electrode Tip to the Driving Axle
67
Figure 41 Working Electrode, Installed
67
Figure 42 Fastening the Drive Belt
68
Figure 43 Connecting the Working Electrode
69
Figure 44 Assembling the Reference Electrode with the Electrolyte Vessel
70
Figure 45 Connecting a Reference Electrode
71
Figure 46 Connecting the Auxiliary Electrode
72
Inserting the RDE Measuring Head
73
Figure 47 Installing the Measuring Head Cover
73
Figure 48 Inserting the Stopper in the Pipetting Opening
74
Connecting the Inert Gas Supply
75
Figure 49 Do Not Touch the Drive Disk
75
Figure 50 Inserting the Measuring Head
75
Figure 51 Gas Washing Glass
76
Equipping the SPE Measuring Head
77
Preparing the SPE Measuring Head
77
Figure 52 Nipple for Inert Gas Supply
77
Figure 53 Removing the Stopper from the Pipetting Opening
78
Figure 54 Removing the Measuring Head Cover
78
Figure 55 Inserting the Gas Inlet
79
Figure 56 Connecting the Gas Inlet
80
Figure 57 Screwing in the Flexible Shaft
80
Figure 58 Inserting and Connecting the Stirrer
81
Preparing the Electrode and Inserting It in the SPE Measuring Head
82
Figure 59 Inserting the Stopper
82
Figure 60 Inserting the Electrode Holder
84
Figure 61 Aligning the Electrode
85
Figure 62 Connecting the Working Electrode
86
Figure 63 Connecting a Reference Electrode
87
Inserting the SPE Measuring Head
88
Figure 64 Connecting the Auxiliary Electrode
88
Figure 65 Installing the Measuring Head Cover
89
Figure 66 Inserting the Stopper in the Pipetting Opening
89
Figure 67 Do Not Touch the Drive Disk
90
Connecting the Inert Gas Supply
91
Figure 68 Inserting the Measuring Head
91
Figure 69 Gas Washing Glass
92
Figure 70 Nipple for Inert Gas Supply
92
Connecting Instruments Electrically
93
Connecting the Instrument to the Power Grid
93
Connecting the 884 Professional VA
94
Connecting an 800 Dosino
95
Figure 71 Connecting a Dosing Device to an MSB Socket
96
4 Start-Up
100
5 Operation and Maintenance
103
Replacing the Measuring Head
103
Figure 72 Removing the Measuring Head
104
Figure 73 Rear WASTE Connector
104
Figure 74 Do Not Touch the Drive Disk
105
Performing a Dummy Cell Test
106
Figure 75 Dummy Cell Test - Ideal Curve Progression
107
6 Troubleshooting
108
List of Faults
108
General Problems
108
884 Professional VA for VA Trace Analysis
109
884 Professional VA for CVS
119
7 Appendix
121
Tubing Lengths in the Measuring Head Arm
121
Status" LED - Various Instrument Statuses
121
8 Accessories
122
4
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Metrohm 884 Professional VA Specifications
General
Brand
Metrohm
Model
884 Professional VA
Category
Laboratory Equipment
Language
English
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