VEGA VEGAPULS 41 4 … 20 mA; HART compact sensor - Manual (Page 54)

54 VEGAPULS 41 – 4 … 20 mA
26620-EN-041227
Technical data
Ambient conditions
Vessel pressure -100 … 300 kPa (-1 … 3 bar)
Ambient temperature on the housing
- 4 … 20 mA two-wire sensor -40°C … +80°C
- 4 … 20 mA four-wire sensor -40°C … +80°C
- 4 … 20 mA four-wire sensor Ex d ia -40°C … +60°C
Process temperature (flange temp.) -40°C … +130°C
Storage and transport temperature -60°C … +80°C
Protection IP 66 and IP 67
Protection class
- two-wire sensor II
- four-wire sensor I
Overvoltage category III
Ex-technical data
Comprehensive data in the safety instructions manual (yellow binder)
WHG approvals
VEGAPULS 41 radar sensors are approved as part of an overfill protection system for
stationary vessels storing water-endangering liquids.
Materials
Housing PBT (Valox) or
Aluminium die casting (GD-AlSi 10 Mg)
Connection housing with Exd version Aluminium mould casting (GK-AlSi 7 Mg)
Process flange PVDF
Antenna (wetted parts) TFM-PTFE
Connection cables
Two-wire sensors power supply and signal via one
two-wire cable
Four-wire sensors power supply and signal separated
Electrical connection
- cable entry for Aluminium and plastic housing:
one cable entry (four-wire: two cable entries)
and spring-loaded terminal connection
up to max. 2.5 mm
2 wire cross-section
- plug connection optional for plastic housing:
four-pole, polarity reversal-proof screwed plug
connection (four-wire: tow plug connections)
Cable entry
- ia terminal compartment 1 … 2 x M20 x 1.5 (cable-ø 5 … 9 mm) or
1 … 2 x ½“ NPT EEx d (cable-ø 3.1 … 8.7 mm
or 0.12 … 0.34 inch)
- Exd terminal compartment
(pressure-tight encapsulated) 1 x½“ NPT EEx d (cable-ø 3.1 … 8.7 mm or
0.12 … 0.34 inch)
Ground connection max. 4 mm²
Intermediate housing between
process flange and housing 1.4435