Vaisala HUMICAP HMT360 SERIES, Safety Manual

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CH1
+ -
CH2
+ -
ON
OFF
HAZARDOUS AREA SAFE AREA
HMT360 Connection board
STAHL
9160/13-11-11
+
-
-
+
DC Power supply
Controller
7
9
-
+
10 2
12 1
4-20 mA
24 Vdc
4-20 mA
7
9
10
2
12 1
Figure 3 Example Connection to STAHL 9160/13-11-11 Galvanic Isolator
CH1
+ -
CH2
+ -
ON
OFF
HAZARDOUS AREA SAFE AREA
HMT360 Connection board
STAHL
9001/51-280-091-141
+
-
-
+
DC Power supply
-
+
Controller
4
3 1
2
4
3 1
2
4-20 mA
4-20 mA
4-20 mA
24 Vdc
Figure 4 Example Connection to STAHL 9001/51-280-091-141 (Zener Barrier)
8 M210483EN-J