VEGA VEGAFLEX 55P (Profibus PA) - Manual (Page 44)

44 VEGAFLEX 55P (Profibus PA)
Technical data
Characteristics
Min. span between full and empty adjustment
- digital output signal 10 mm
Adjustment time 1) > 1 s (depending on parameter setting)
Ambient conditions
Vessel pressure -1 … 40 bar
Ambient temperature on the housing -40°C … +60°C
Process temperature -40°C … +150°C
Storage and transport temperature -40°C … +80°C
Protection IP 66/IP 67 (meets both protection classes)
Protection class
- two-wire sensor
II
- four-wire sensor I
Overvoltage category III
Min. dielectric constant
ε
r
> 1.5
Process fittings
VEGAFLEX 55 G 3 /
4
A, 3 /
4
“ NPT, G 1A, 1“ NPT, G 1 1 /
2
A, 1 1 /
2
“ NPT
1.4435 (stst) or Hastelloy C22 plated flanges
Ex technical data
Ex-Zone 0 nach ATEX II 1/2 G
Ex Zone 0 EEx ia IIC T 6 nach ATEX II 1/2 G
Ex Zone 0 EEx d ia IIC T 6 nach ATEX II 1/2 G
The permissible operating data of VEGAFLEX sensors for Ex areas are stated in the certifi-
cate.
Materials
Housing PBT (Valox) or
Aluminium (powder coated)
Coaxial rod 1.4435 (stst: 316L) or Hastelloy C22
Connection cables
Two-wire sensor
- power supply and signal via one two-wire cable.
The line resistance depends on the supply voltage (see diagram).
Cross-section area of conductor general 2.5 mm 2
Ground connection max. 4 mm 2
Cable entry 2 x M20 x 1.5 (cable diameter 5 … 9 mm)
2 x 1 /
2
“ NPT with ExD housing
1) The adjustment time (also actuating, response time or adjustment period) is the time required by the sensor
to output the level correctly (with max. 10 % deviation) after a sudden level change.