Vega VEGASCAN 850 User Manual Page 54
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54 VEGASCAN 850
We recommend a screening on both ends,
see the following sketch. Screening is a good
preventative measure against future sources
of interference. However, you must make
sure that no ground potential currents flow
through the sensor cable shields. Ground
potential currents can be avoided by poten-
tial equalisation cables. When grounding at
both ends, it is possible to connect the cable
shield on one side (e.g. in the switching cabi-
net) via a capacitor (e.g. 0.1 µF; 250 V) to the
ground potential. Use a low-resistance
ground connection (foundation, plate or
mains earth).
Electrical connection
PC
on
BA
850
2
2
Linear (serial) arrangement of sensors
Grounding of the cable screen on both ends, at the end of each sensor line via a ground ca-
pacitor.
Note Ex protection!
In Ex applications, grounding on both ends is
not allowed due to potential losses. If an
instrument is used in hazardous areas, the
respective regulations, conformity certificates
and type approvals for systems in Ex areas
must be noted (e.g. DIN 0165).
Please note the approval documents with the
safety data sheet attached to the Ex sensors.
- Operating Instructions 1
- Contents 2
- Safety information 2
- Note Ex area 2
- VEGASCAN 850 3 3
- 1 Product description 4
- Output signal 5
- Display of measured values 5
- 1.2 Application features 6
- 1.3 Adjustment 6
- VEGASCAN 850 7 7
- 2 Types and versions 8
- Common features 9
- 10 VEGASCAN 850 10
- 2.3 Type code, VEGASCAN 850 11
- 2.4 Type code, sensors 12
- 2.5 Approvals 13
- Configuration A 14
- Configuration B 16
- Configuration C 17
- 3 Technical data 18
- VEGASCAN 850 19 19
- 20 VEGASCAN 850 20
- VEGASCAN 850 21 21
- 22 VEGASCAN 850 22
- VEGASCAN 850 23 23
- 24 VEGASCAN 850 24
- 3.2 Dimensions 25
- Adjustment module MINICOM 26
- VEGASON 51 27
- VEGASON 52 28
- VEGASON 53 29
- VEGASON 54 … 56 in version A 30
- VEGASON 54 … 56 in version B 31
- VEGASON 54 … 56 in Version C 32
- VEGASON 54 … 56 in version D 33
- 4 Mounting and installation 34
- VEGASON 54 … 56, version C, D 35
- Measuring range 36
- Beam angle and false echoes 37
- 38 VEGASCAN 850 38
- 4.3 Measurement of liquids 39
- Dished tank ceiling 40
- < 400 mm 41
- 4.4 Measurement of solids 42
- Mounting boss 43
- 4.5 Socket extensions 44
- Measurement in a tube 45
- 4.6 Flow measurement 46
- 4.7 False echoes 47
- Overflow basin 48
- 4.8 Incorrect mounting 49
- Strong heat fluctuations 50
- Min. distance to the medium 50
- VEGASCAN 850 51 51
- < 100 mm 52
- 5 Electrical connection 53
- 54 VEGASCAN 850 54
- Electrical connection 55
- Radial arrangement of sensors 55
- 5.2 Connection of the sensor 56
- VEGASCAN 850 57 57
- VEGASCAN 850 58
- 5.6 Connection of the PC to 59
- 6.1 Adjustment methods 60
- 6.2 Adjustment with the PC 61
- Planning 62
- Configuration/Program/ 62
- User access 62
- Configuration 63
- Access protection activated“ 64
- VEGASCAN 850 65 65
- 66 VEGASCAN 850 66
- Create new 67
- Parameter adjustment 1 68
- VEGASCAN 850 69 69
- 70 VEGASCAN 850 70
- Sensor optimisation 71
- Echo curve 72
- False echo storage 73
- Sensor optimisa 73
- 74 VEGASCAN 850 74
- Parameter adjustment 2 75
- 76 VEGASCAN 850 76
- Linearisation -- user 77
- 78 VEGASCAN 850 78
- All dimensions are 79
- Tank calculation 79
- 80 VEGASCAN 850 80
- VEGASCAN 850 81 81
- Simulation 82
- Show measured value 82
- VEGASCAN 850 83 83
- 84 VEGASCAN 850 84
- Services/Backup/Signal 85
- Services/ 85
- Backup/Sensors 85
- 1. Measurement in gases 86
- 2. Operating range 86
- 4. False echo storage 87
- 5. Useful and noise level 87
- 3. Meas. conditions 87
- 88 VEGASCAN 850 88
- VEGASCAN 850 89 89
- 7 Diagnostics 90
- VEGASCAN 850 91 91
- ISO 9001 92
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