Datasheet
Connector
Piping port
(OUT side)
Piping port
(IN side)
Temperature sensor
(When the unit with temperature
sensor is selected)
Bracket
(Option)
Lead wire with
M8 connector
(Option)
Lock ring
POWER indicator
FLOW indicator
Flow adjustment valve
(When the unit with
flow adjustment valve
is selected)
Flow adjustment knob
Main screen
(2-colour display)
UP button
Output display
(Indicator light)
SET button
DOWN button
Unit displaySub screen
u
i
o
!0
!3
!2
!1
w
qrw
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t
w
Description
Wetted Parts Construction
Attachment
Seal
Body
Sensor
Temperature sensor body
Flow adjustment valve body
Flow adjustment valve cover
Flow adjustment valve shaft
Shaft support
O-ring
Cap seal
Y seal
Temperature sensor
No. Description
1
2
3
4
5
6
7
8
9
10
11
12
13
Material Note
SCS13
FKM
PPS
PPS
Stainless steel 304
PPS
PPS
Stainless steel 304
PPS
FKM
FKM
FKM
Stainless
steel 304
Stainless steel 304 equivalent
With brazing
)(
JIS Z 3261: BAg-7,
ISO 3677: B-Ag56CuZnSn-620/650
Description Function
Main screen (2-colour display)
Sub screen
Output display (Indicator light)
Unit display
UP button
SET button
DOWN button
Displays the flow, status of setting mode, and error code.
Displays the output status of OUT1 and OUT2. When ON: Orange light turns on.
Displays the unit selected.
Selects the mode and the display shown on the sub screen, and increases the ON/OFF set values.
Press this button to change the mode and to set a set value.
Selects the mode and the display shown on the sub screen, and decreases the ON/OFF set values.
Displays the accumulated flow, set value, peak/bottom value, fluid temperature, and line name.
In the setting mode, the set status is displayed. (Refer to page 21 for details.)
Description Function
Connector
Lead wire with M8 connector
Piping port
Bracket
Temperature sensor
Flow adjustment valve
Flow adjustment knob
Lock ring
POWER indicator
FLOW indicator
Remote sensor unit
(With temperature sensor and flow adjustment valve)
Integrated display
(With temperature sensor and flow adjustment valve)
Component Parts
Connects the lead wire.
Supplies power to the product and ensures output.
Connects to the piping. Inlet piping goes to the IN side, and outlet piping goes to the OUT side.
Mounting bracket for installation of the product
Detects the fluid temperature.
Orifice mechanism to adjust the flow rate.
Adjusts the flow rate.
Fixes the flow adjustment knob in place.
Indicates the power supply status, indicates product specifications and indicates errors.
Main unit
Display
Blinks at a cycle proportional to the flow rate or indicates errors. Turns off when
below rated flow.
Series PF3W
PF3W704/504
PF3W720/520
PF3W740/540
PF3W711/511
A
70
78
98
124
3/8
3/8, 1/2
1/2, 3/4
3/4, 1
AA
50
54
71
92
B
30
30
38
46
D
60
60
68
77
DD
45.6
45.6
53.6
62.6
E
40.6
40.6
48.6
57.6
F
15.2
15.2
19.2
23.0
G
24
27
32
41
H
14
18
28
42
J
35
39
49
63
K
26
30
35
48
L
18
18
28
28
N
13.6
13.6
16.8
18.0
P
ø2.7 depth 14
ø2.7 depth 12
ø2.7 depth 12
ø3.5 depth 14
S
24
28
34
44
T
22
22
30
36
U
32
32
42
48
V
40
40
48
58
W
50
50
58
70
WX
4.5
4.5
4.5
5.5
Y
5
5
5
7
Z
1.5
1.5
1.5
2.0
Model
Port size
(Rc, NPT, G)
IN OUT
OUT
IN
2 x piping port
2 x piping port
42
H
DD
J
K
AA
Z
W
V
30
U
T
S
N
L
Y
1.4
D
E
F
B
A
(35.5)
G
H
42
J
A
30
B
ST
U
V
W
F
E
G
Y
N
KL
(35.5)
Z
4 x
P
4 x
WX
50
4 x
P
4 x
WX
PF3W704/720/740/711
Integrated display
PF3W504/520/540/511
Remote sensor unit
AA
13
24
Pin no. Pin name
1
2
3
4
DC (+)
OUT2
DC (–)
OUT1
Connector
pin number
Example
(mm)
Bracket dimensions
3-Colour Display Digital Flow Switch for PVC Piping
PF3W
3-Colour Display Digital Flow Monitor for Water
PF3W3
3-Colour Display Digital Flow Switch for Water
PF3W
Function
Details
3-colour display
Digital Flow Switch for Water
Series
PF3W
Dimensions
8