8
3 Product description
VEGASWING 63 • Two-wire 8/16 mA
29232-EN-180704
With the serial number, you can access the delivery data of the instru-
ment via "www.vega.com", "
VEGA Tools
" and "
Instrument search
".
You can find the serial number on the inside of the instrument as well
as on the type label on the outside.
3.2 Principle of operation
VEGASWING 63 is a point level sensor with tuning fork for point 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, VEGASWING 63 is virtually
unaffected by the chemical and physical properties of the liquid.
It functions even under difficult conditions such as turbulence, air bub-
bles, foam generation, buildup, strong external vibration or changing
products.
Function monitoring
The electronics module of VEGASWING 63 continuously monitors the
following criteria via frequency evaluation:
•
Strong corrosion or damage on the tuning fork
•
Loss of vibration
•
Line break to the piezo drive
If one of these faults is detected, the electronics signals it via a
defined current to the signal conditioning instrument. The connection
cable to the sensor is also monitored for line break and short-circuit.
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, transferred as a current value to the processing system and
converted there into a switching command.
Depending on your requirements, VEGASWING 63 with two-wire
electronics can be connected to different signal conditioning instru-
ments. Compatible signal conditioning instruments are listed in
chapter "
Technical data
".
The data for power supply are specified in chapter "
Technical data
".
3.3 Adjustment
The switching condition of VEGASWING 63 with plastic housing can
be checked when the housing is closed (signal lamp). With the basic
setting, products with a density ≥ 0.7 g/cm³ (0.025 lbs/in³) can be de-
tected. The instrument can be adapted if products with lower density
are to be measured.
Application area
Functional principle
Voltage supply
