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VibraFox GVG 12

vibration level switch for liquids

  • compact design
  • WHG approval
  • maintenance-free
  • high resistance to chemicals
  • versatile process connections
  • Commissioning without calibration

Suitable for detecting limit levels in liquids with a maximum dynamic viscosity of 10,000 mPa ⋅ s and a minimum density of 0.7 kg/dm3. Specially useful in cases in which floating switches cannot be used due to currents, turbulence or adherence. Ideally suited as an overflow alarm or for dry-run protection. Due to the WHG approval, VibraFox® can be used as part of an approved overfill prevention system.

The vibration fork of VibraFox® is excited to its resonance frequency. When the fork comes into contact with the medium, there is a change in frequency which is detected by the electronics and converted into a switching signal. The unique evaluation electronics enable the application of the system even under adverse conditions, e.g. in vibrating tanks or with turbulent liquid surfaces.

Installation lengthPart no.
Vibration level switch VibraFox GVG 1264 mm56168
Vibration level switch VibraFox GVG 1267 mm56169
  • in-stock items
  • manufactured goods

Density of medium
0.7 − 2.5 kg/dm³
dynamic viscosity of the medium
0.1 mPa ∙ sec − 10000 mPa ∙ sec
Flow rate
max. 6 m/s (max. at a viscosity of 10,000 mPa ⋅ s)
Operating temperature range
Medium:
-40/+100 °C
Ambient:
-40/+70 °C
Process pressure
-1/+64 bar
Process connection
G¾A
Housing
Stainless steel 316 L
cap:
PEI
Vibration fork:
Stainless steel 316 L
Supply voltage
3-wire: DC 10 − 55 V
load current
3-wire: max. 250 mA
Power input
3-wire: max. 0.6 W max.
Output
3-wire: transistor (PNP)
Switching delay
after transition dry - wetted: 0.5 s,
nach Austauchen: 0,5 s
Switching point
installation from top: 11 mm,
Einbau von unten: 34 mm
(in water at 25 °C)
Switching hysteresis
vertical installation: Approx. 2 mm,
Einbau horizontal: 2 mm
(in water at 25 °C)
visual indication
Bi-colour LED green/red
Function test
with test magnet (included)
Electrical connection
Connector and junction box as per ISO 4400 (DIN 43650-A), IP 65 (EN 60529)
approval for construction products
DIBt: Z-65.11-412

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