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

T
he type label contains the most important data for identification and
use of the instrument:
l A rticle number
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.
4 … 20 mA/HART two-wire electronics for voltage supply and
measured value transmission on the same cable.
T he supply voltage range can differ depending on the instrument
version.
T he data for power supply are specified in chapter "Technical data".
T
he optional 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 "Technical data".
T he optional heating requires its own operating voltage. You can find
details in the supplementary instructions manual "Heating for indicat-
ing and adjustment module".
T his function is generally not available for approved instruments.
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
Type label
Application area
Functional principle
Voltage supply
8 VEGAFLEX 65 • 4 … 20 mA/HART - two-wire
3 P roduct description
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