Electrical connections________________________________________________________________
Vaisala _________________________________________________________________________ 27
Examples of connections
FIGURE
4-3
STAHL 9160/13-11-11
(galvanic isolator).
FIGURE
4-4
STAHL 9001/51-280-091-141
(zener barrier).
Make the connection
between the
- terminals always
when using a
galvanic isolator !
STAHL 9160/13-11-11
-Ch2+
HMT360 Connection
HAZARDOUS AREA
-Ch1+
board
SAFE AREA
Load Ch1
Load Ch2
V+
V-
18...31,2VDC
V-
V+
18...31,2VDC
12
10
10
12
7
9
1
2
9
2
1
7
(+)
(-)
(-)
(+)
HAZARDOUS AREA
SAFE AREA
HMT360 Connection
board
-Ch1+
-Ch2+
Load Ch2
20...35 VDC
20...35 VDC
Load Ch1
STAHL 9001/51-280-091-141
1
2
2
1
4
3
3
4
