Endress+Hauser prowirl 70 - EEx d Connection Diagrams

Connection examples for the EEx ib version (continued)
Connection examples for the EEx d version (Prowirl 70 ****-*******C***)
1
+
2
-
3
P
1
+
2
–
3
+P
7
1
9
3
L+
L-
L+
L-
7
8
2
3
mA
+
8888
-
xa019y06
switching amplifier
(e.g. Stahl 9250/05-10)
intrinsically safe power supply
(e.g. Stahl 9303/15-22-11)
electronic
counter
Note!
Not for use with electro
mechanical counters!
Hazardous area Safe area
Fig. 6
Connection simultaneous outputs
4...20 mA and Open Collector
4-20 mA
1
+
2
-
3
P
1
+
2
–
3
–
+
Hazardous area Safe area
4...20 mA
Power supply:
12...36 V
18,5...36 V (HART/Intensor)
Imax = 20 mA
xa019y07
Note!
For EEx d version, the Open
Collector output (terminal 3) is not
available.
Fig. 7
Connection 4...20 mA
1
+
2
-
3
P
1
+
2
–
3
ESC DIAGS.
+
-
E
ENDRESS+HAUSER
COMPART DXF 351
F1 F2 F3
Compart DXF 351
1+
2-
20 mA
4mA
non-scalable
Vortex frequency
1...2850 Hz
pulse width 0,18 ms
Hazardous area Safe area
xa019y08
Note!
HART communication not available
when using PFM output
Fig. 8
PFM two-wire current pulse
output
en
Prowirl 70
8 Endress+Hauser