75
11 Supplement
VEGAPULS SR 68 • 4 … 20 mA/HART - two-wire
38294-EN-160707
Process conditions
For the process conditions, please also note the specifications on the type label. The lowest value
always applies.
Seal
Antenna impedance
cone
Process temperature (measured on the process
fitting)
FKM (SHS FPM 70C3
GLT)
PTFE
-40 … +130 °C (-40 … +266 °F)
FFKM (Kalrez 6375)
PFFE
-20 … +130 °C (-4 … +266 °F)
PEEK
-20 … +250 °C (-4 … +482 °F)
FFKM (Kalrez 2035)
PFFE
-15 … +130 °C (5 … +266 °F)
PEEK
-15 … +210 °C (5 … +410 °F)
FFKM (Kalrez 6230)
PFFE
-15 … +130 °C (5 … +266 °F)
PEEK
-15 … +250 °C (5 … +482 °F)
Vessel pressure - horn antenna
Ʋ
Antenna impedance cone PTFE
-1 … 40 bar/-100 … 4000 kPa (-14.5 … 580 psi)
Ʋ
Antenna impedance cone PEEK
-1 … 100 bar/-100 … 10000 kPa (-14.5 … 1450 psi)
Vessel pressure with swivelling holder
-1 … 1 bar (-100 … 100 kPa/-14.5 … 14.5 psig), not
sealing
Vessel pressure relating to the flange
nominal pressure stage
see supplementary instructions manual "
Flanges ac-
cording to DIN-EN-ASME-JIS
"
Vibration resistance
Ʋ
Horn antenna
4 g at 5 … 200 Hz according to EN 60068-2-6 (vibration
with resonance)
Ʋ
Parabolic antenna
1 g at 5 … 200 Hz according to EN 60068-2-6 (vibration
with resonance)
Shock resistance
Ʋ
Horn antenna
100 g, 6 ms according to EN 60068-2-27 (mechanical
shock)
Ʋ
Parabolic antenna
25 g, 6 ms according to EN 60068-2-27 (mechanical
shock)
Data on rinsing air connection
Max. permissible pressure
6 bar (87.02 psig)
Air volume with horn antenna, depending on pressure (recommended area)
Pressure
Without reflux valve
With reflux valve
0.5 bar (7.25 psig)
3.3 m
3
/h
1.2 m
3
/h
0.6 bar (8.70 psig)
3.5 m
3
/h
1.4 m
3
/h
0.7 bar (10.15 psig)
3.7 m
3
/h
1.7 m
3
/h
0.8 bar (11.60 psig)
3.9 m
3
/h
1.8 m
3
/h
0.9 bar (13.05 psig)
4.0 m
3
/h
2.1 m
3
/h
1 bar (14.5 psig)
4.2 m
3
/h
2.2 m
3
/h