VEGA VEGAPULS 45 4 … 20 mA; HART compact sensor - Manual (Page 56)

56 VEGAPULS 42, 44 and 45 – 4 … 20 mA
Technical data
Ambient conditions
Vessel pressure -100 … 1600 kPa (-1 … 16 bar) at PN 16
-100 … 4000 kPa (-1 … 40 bar) at PN 40
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.) -25 °C … +150 °C (option -40 °C … +150 °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
All VEGAPULS 42, 44 and 45 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 1.4435
Antenna (wetted parts) 1.4435 and PTFE
Antenna seal with horn and pipe antennas
- standard Viton (-20 °C)
- option Kalrez, Viton for low temperature (-40 °C)
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: two 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