VEGA VEGAFLEX 83 4 … 20 mA_HART - four-wire PFA insulated - Manual (Page 11)

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3 Product description
VEGAFLEX 83 • 4 … 20 mA/HART - four-wire
41835-EN-130314
The instrument can be supplied in two different electronics versions.
Each electronics version can be identified via the product code on the
type label as well as on the electronics.
•
Standard electronics with operating voltage 90 … 253 V AC;
50/60 Hz: Typ FX80B.-
•
Standard electronics with supply voltage 9.6 … 48 V DC;
20 … 42 V AC: Type FX80I.-
The scope of delivery encompasses:
•
Sensor
•
Documentation
– this operating instructions manual
– Test certificate measuring accuracy (optional)
– Operating instructions manual "Display and adjustment mod-
ule" (optional)
– Supplementary instructions "GSM/GPRS radio module"
(optional)
– Supplementary instructions manual "Heating for display and
adjustment module" (optional)
– Supplementary instructions manual "Plug connector for con-
tinuously measuring sensors" (optional)
– Ex-specific "Safety instructions" (with Ex versions)
– if necessary, further certificates
3.2 Principle of operation
The VEGAFLEX 83 is a level sensor with coated cable or rod probe
for continuous level or interface measurement, particularly suitable for
applications in the chemical industry.
High frequency microwave pulses are guided along a steel cable or
a rod. Upon reaching the product surface, the microwave pulses are
reflected. The running time is evaluated by the instrument and output-
ted as level.
Versions
Scope of delivery
Application area
Functional principle -
level measurement