VEGA VEGASON 62 4 … 20 mA_HART - four-wire - Manual (Page 40)

40
10 Supplement
VEGASON 62 • 4 … 20 mA/HART - four-wire
28779-EN-130417
10 Supplement
10.1 Technical data
General data
Materials, wetted parts
Ʋ Process fitting, transducer PVDF
Ʋ Seal transducer/process fitting EPDM, FKM (Viton)
Materials, non-wetted parts
Ʋ Housing Plastic PBT (polyester), Alu die-casting powder-coated,
316L
Ʋ Seal between housing and housing
cover
NBR (stainless steel housing), silicone (Alu/plastic hous-
ing)
Ʋ Inspection window in housing cover Polycarbonate
Ʋ Ground terminal 316Ti/316L
Weight 1.8 … 4 kg (4 … 8.8 lbs), depending on the process
fitting and housing
Max. torque mounting boss 25 Nm
Output variable
Output signal
4 … 20 mA/HART (active)
HART output values
Ʋ HART value (Primary Value) Distance to the level
Ʋ HART value (Secondary Value) Temperature
Ʋ HART value (3rd Value) Distance to the level - scaled
Resolution 1.6 µA
Failure signal current output (adjustable) mA-value unchanged 20.5 mA, 22 mA, < 3.6 mA
Current limitation
22 mA
Load < 500 Ω 4)
Damping (63 % of the input variable) 0 … 999 s, adjustable
Met NAMUR recommendation NE 43
Input variable
Measured variable
distance between lower edge of the transducer and
product surface
Measuring range
Ʋ Liquids up to 8 m (26.25 ft)
Ʋ Bulk solids up to 3.5 m (11.48 ft)
Dead band 0.4 m (1.312 ft)
Reference conditions to measuring accuracy (according to DIN EN 60770-1)
Reference conditions according to DIN EN 61298-1
Ʋ Temperature +18 … +30 °C (+64 … +86 °F)
4) With inductive load ohmic share min. 25 Ω/mH.