Datasheet
22
PF2W504, 520-(N)-
PF2W540-(N)-
48.2
60
L
44
54
40
50
6
34
23
B
1.6
2-Port size
4
A
2-ø3.4
43
(44.2)
21
4
3
Connector pin numbers
4-ø4.5
Model
PF2W504
PF2W520
L dimension
100
106
50
60
48.2
60
120
4-ø4.5
50
40
1.6
23
34
55
B
2-Port size
A
(44.2)
Main Circuit
6
Wiring
Pin no.
1
2
3
4
Pin description
DC(+)
NC/Analog output
DC(–)
OUT
Load is an analog input equipment such as a voltmeter.
PF2W5--1 (With voltage output type)
Load is an analog input equipment such as a voltmeter.
PF2W5--2 (With voltage output type)
Digital Flow Switch
Series PF2W
For Water
Dimensions: Remote Type Sensor Unit for Water
Flow direction
Flow direction
Internal circuits and wiring examples
Brown
White
Display unit
(PF2W3
0/31)
Black
Switch
output
Blue
12 to
24 VDC
12 to
24 VDC
NC
Brown
White
Display unit
(PF2W3
0/31)
Black
Switch
output
Blue
+
–
+
–
Main circuitMain circuit
Main circuitMain circuit
1
2
4
3
2
4
3
1
6
8
7
5
1
2
4
3
2
4
3
1
6
8
7
5
Sensor unit
Sensor unit
PF2W5-
Load
Analog
output
to are the terminal numbers.
12 to
24 VDC
Brown
White
Display unit
(PF2W3
0/31)
Black
Switch
output
Blue
+
–
Main circuit
Main circuit
1
2
4
3
2
4
3
1
6
8
7
5
Sensor unit
Load
Analog
output
Black (4) OUT (Output for
display unit)
White (2) NC/Analog output
Brown (1) DC(+)
Blue (3) DC(–)
∗ Use this sensor by connecting it to a SMC remote
type display unit Series PF2W2/3.
Output specification
Output for display
unit only
Output for display unit +
Analog output
B
62
72
A
42
52
(mm)
Output specification
Output for display
unit only
Output for display unit +
Analog output
B
62
72
A
42
52
(mm)