SMC Networks PFA Series - Page 29

Dimensions/Remote Type Sensor Unit
for Water
PFW504/520
PFW540
48.2
60
L
44 54
40
50
34
17
56
1.6
6
2-Port size
4
42
2-ø3.4
43
Flow direction
(43.5)
21
43
Connector pin numbers
4-ø4.5
Model
PFW504
PFW520
Dimension L
100
106
Pin no.
1
2
3
4
Pin description
DC (+)
N C
DC (–)
OUT
50 60
78.2
120
4-ø4.5
50
40
1.6
23
34
62
34
2-Port size
48
(43.5)
Flow direction
Main circuit
Brown (1) DC (+)
Black (4) OUT
Blue (3) DC (–)
Wiring
∗ Use this sensor by connecting it with the SMC
remote type display unit series PFW3.
(1), (3), and (4) are connector pin numbers.
, , and are the series PFW3 terminal
numbers.
25
For Water
Digital Flow Switch Series PFW