VEGA VEGAFLEX 65 4 … 20 mA_HART four-wire - Manual (Page 8)

l S erial number
l T echnical data
l A rticle numbers, documentation
l SIL identification (with SIL rating ex works)
W ith the serial number, you can access the delivery data of the
instrument via www.vega.com, "VEGA Tools" and "serial number
search". In addition to the type label outside, you can also find the
serial number on the inside of the instrument.
3 .2 Principle of operation
VEGAFLEX 65 is a level sensor with pipe probe for continuous level
measurement.
I t is designed for industrial use in all areas of process technology and
can be used in liquids.
H igh frequency microwave pulses are guided along a steel rope or a
rod. Upon reaching the product surface, the microwave pulses are
reflected. The running time is evaluated by the instrument and
outputted as distance.
F our-wire electronics with separate power supply.
T he supply voltage range can differ depending on the instrument
version.
T he data for power supply are specified in chapter "Technical data".
M easured value transmission is carried out via the 4 … 20 mA/HART
output separate from power supply.
T he background lighting of the indicating and adjustment module is
powered by the sensor. A certain level of operating voltage is required
for this. You can find the exact voltage specifications in chapter
"T
echnical data".
3 .3 Operation
T he instrument can be adjusted with the following adjustment media:
l W
ith indicating and adjustment module
l
with the suitable VEGA DTM in conjunction with an adjustment
software according to the FDT/DTM standard, e.g. PACTware and
PC
l
with manufacturer-specific adjustment programs AMS™ or PDM
l W ith a HART handheld
Application range
Functional principle
Voltage supply
8 VEGAFLEX 65 • 4 … 20 mA/HART - four-wire
3 P roduct description
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