Burkert Type 8112 Manual de usuario Pagina 8
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l Article numbers, documentation
In addition to the type label outside on the instrument, you find the
serial number also inside the instrument.
3.2 Principle of operation
LEVEL SWITCH 8112 is a point level sensor with tuning fork for level
detection.
It is designed for industrial use in all areas of process technology and
can be used in liquids.
Typical applications are overfill and dry run protection. The small
tuning fork allows use in all kinds of tanks and vessels. Thanks to its
simple and rugged measuring system, LEVEL SWITCH 8112 is
virtually unaffected by the chemical and physical properties of the
liquid.
It functions even under difficult conditions such as turbulence, air
bubbles, foam generation, buildup, strong external vibration or
changing products.
Fault monitoring
The electronics module of LEVEL SWITCH 8112 continuously
monitors via frequency evaluation the following criteria:
l Strong corrosion or damage on the tuning fork
l Loss of vibration
l Line break to the pie zo drive
If one of these faults is detected or if the power supply fails, the
electronics takes on a defined output st atus (safe condition).
The tuning fork is piezoelectrically energised and vibrates at its
mechanical resonance frequency of approx. 1200 Hz. The piezos are
fixed mechanically and are hence not subject to temperature shock
limitations. The frequency changes when the tuning fork is covered by
the medium. This change is detected by the integrated electronics
module and converted into a switching command.
LEVEL SWITCH 8112 is a compact instrument, i.e. it can be operated
without external evaluation system. The integrated electronics
evaluates the level signal and outputs a switching signal. With this
switching signal, a connected device can be operated directly (e.g. a
warning system, a pump etc.).
The data for power supply are specified in chapter "Technical data".
Appli
cation area
Func
tional principle
Volta
ge supply
8 LEVEL SWITCH 8112 • with NAMUR output
3 Product description
32052-EN-120418
- Operating Instructions 1
- Contents 2
- 1 About this document 4
- 2 For your safety 5
- 2.6 CE conformity 6
- 2.7 SIL conformity 6
- 3 Product description 7
- 3.2 Principle of operation 8
- 3.3 Operation 9
- 3.4 Storage and transport 9
- 4 Mounting 10
- 32052-EN-120418 11
- 5 Connecting to power supply 17
- 6 Set up 20
- 6.3 Function chart 21
- 7.1 Maintenance 23
- 7.2 Remove interferences 23
- 8 Dismounting 25
- 9 Supplement 26
- 9.2 Dimensions 33
- , options 35
- Bedienungsanleitung 37
- Inhaltsverzeichnis 38
- 32052-DE-120412 39
- 1 Zu diesem Dokum 40
- 2 Zu Ihrer Sicherheit 41
- 2.5 Sicherheitsk 42
- 2.6 C E-Konformität 42
- 2.7 SIL-Konformität 42
- 3 Produktbeschreibung 43
- 3.2 Arbeitsweise 44
- 3.3 Bedienung 45
- 3.4 L agerung und Transport 45
- 4 Montieren 46
- 4.2 Montagehinweise 50
- 5 An die Spannungs 53
- 6 In Betrieb nehmen 56
- 6.3 Funktionstabelle 58
- 7 Instandhalten 59
- 7.3 Elektronik austauschen 60
- 8 Ausbauen 61
- 9 Anhang 62
- Einfluss der Proze 64
- Einfluss des Prozessdrucks 65
- 9.2 Maße 69
- 34 LEVEL 70
- - Optionen 71
- Mise en service 73
- Table des matières 74
- 1 À propos de ce document 76
- 2 Pour votre sécurité 77
- 2.6 Conformité CE 78
- 2.7 Conformité SIL 78
- 3 Description du produit 79
- 3.2 Procédé de fonctionnement 80
- 3.3 Réglage 81
- 3.4 Stockage et transport 81
- 4 Montage 83
- 4.2 Consignes de montage 87
- 5.2 Étapes de raccordement 90
- 6 Mise en service 93
- 6.2 Éléments de réglage 94
- 6.3 Tableau de fonctionnement 95
- 7.2 Éliminer des défauts 97
- 8 Démonter 99
- 9 Annexe 100
- 32052-FR-120524 101
- 9.2 Encombrement 107
- LEVEL SWITCH 8112 108
- - Options 109
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