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
-
x
a01
9y
06
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
x
a01
9y
07
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
HAUSER
COMPART DXF 351
F1
F2
F3
Compart DXF 351
1+
2-
20 mA
4 mA
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
Hauser
