K-Patents PR-23 - Manual (Page 141)

9 Sensor specifications 133
1
2
3
13
14
N L
24
21
22
23
31 L
32
33
N
11
12
3
1
2
51
52
53
54
55
2
1
3
5
4
6
8
7
9
11
10
12
13 14
1
2
+ve
-ve
+ve
-ve
-vs +vs
INDICA
TING
T
RANSMITTER
STR
4-20mA
-
RELA
Y 1
mA
OUTPUT
2
+
SUPPL
Y
RELA
Y 2
100-240V
AC/50-60Hz
4-20mA
- mA
OUTPUT
1
+
SENSOR
A
PR-23
SWITCHES
ISOLA
T
OR
UNIT
SAFE
A
REA
HAZARDOUS
A
REA
SENSOR
24VDC
24VDC
OPTIONAL
EXTERNAL
POWER
SUPPL
Y
24VDC
+
-
Figure 9.38 Intrinsically safe wiring, PR-23-...-IA