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Bracket

None

R (Bracket)

R (w/Bracket)

Calibration Certificate

A (Calibration Certificate)

A (w/Calibration Certificate)

A (w/Certificate)

CE-compliant

Q (CE-compliant)

Flow Adjustment Valve

S (Flow Adjustment Valve)

w/o Flow Adjustment Valve

S (w/Flow Adjustment Valve)

w/o Flow Adjustment

S (w/Flow Adjustment)

Flow Range

20 (2~16 l/min)

40 (5~40 l/min)

04 (0.5~4 l/min)

11 (10~100 l/min)

04 (0.4~4L/min)

0 (PF2W504: 0.5~4, PF2W520: 2~16, PF2W540: 5~40)

20 (1.8~20 l/min)

40 (4~40 l/min)

3 (PF2W511: 10~100)

Lead Wire

Lead Wire w/M8 Connector, 3m

N (w/o Lead Wire w/M8 Connector)

Power Supply/Output Connection Lead Wire, 2m

w/Lead Wire and M8 Connector, 3 m

Power Supply/Output Connection Lead Wire, 2m)

N (w/o Lead Wire and M8 Connector)

N (w/o Power Supply/Output Connection Lead Wire)

Q (w/M12-M8 Conversion Lead Wire, 0.1 m)

with Lead Wire with M8 Connector, 3 m

N (None)

Q (w/M12 -M8 Conversion Lead Wire, 0.1 m)

Made to Order

X109 (EPDM Seal Material)

X128 (Analog 4 to 20mA 2 Output Type)

X445 (IO-Link Compatible)

X143 (Piping Material Brass)

Neon Lamp

0 (w/o Neon Lamp)

6 [LED Light (Green for 24VDC)]

5 [LED Light (Red for 24VDC)]

1 [Neon Lamp (for 110VAC Red)]

2 [Neon Lamp (for 110VAC Green)]

4 [Neon Lamp (for 220VAC Green)]

3 [Neon Lamp (for 220VAC Red)]

Option

Lead Wire w/M12 Connector; L/min Unit Specification

T (Panel Mount Adapter)

V (Panel Mount Adapter+Front Protective Cover)

2 (Lead Wire w/M12 Connector; Bracket; L/min Unit Specification)

7 (Bracket; gal/min Unit Specification)

6 (Lead Wire w/M12 Connector; Bracket; gal/min Unit Specification)

5 (gal/min Unit Specification)

C (e-con Connector x 1 pc.)

3 (Bracket; L/min Unit Specification)

1 (L/min Unit Specification)

4 (Lead Wire w/M12 Connector; gal/min Unit Specification)

Output Specification

B (OUT1: PNP; OUT2: PNP)

F (OUT1: PNP; OUT2: Analog 4 to 20mA)

1 (OUT1: Analog 1 to 5V)

E (OUT1: PNP; OUT2: Analog 1 to 5V)

A (OUT1: NPN; OUT2: NPN)

67 (PNP Open Collector 2 Outputs)

C (OUT1: NPN; OUT2: Analog 1 to 5V)

2 (OUT1: Analog 4 to 20mA)

27 (NPN Open Collector 2 Outputs)

D (OUT1: NPN; OUT2: Analog 4 to 20mA)

2 (Pulse Output + Analog Output (4~20mA))

1 (Pulse Output + Analog Output (1~5V))

Pulse Output Only

J (OUT1: Analog 1 to 5V; OUT2: Analog 1 to 5V)

1 (PNP Open Collector 2 Outputs)

0 (NPN Open Collector 2 Outputs)

K (OUT1: Analog 4 to 20mA; OUT2: Analog 4 to 20mA)

L (Out 1: IO-Link: Switch Output, N/P, Out 2: None; Temperature Sensor )

G (OUT1: NPN; OUT2: External Input)

Port Size

04 (1/2)

03 (3/8)

06 (3/4)

10 (1)

14 (1 1/2)

3 (3/8; Applicable to LFE1)

12 (1 1/4)

6 (3/4; Applicable to LFE2)

4 (1/2; Applicable to LFE1)

8 (1; Applicable to LFE3)

10 (1")

03 (TSJ3/8, Compression Fitting)

04 (TSJ1/2, Compression Fitting)

Rated Flow Range

20 (2 to 16 L/min)

40 (5 to 40 L/min)

04 (0.5 to 4L/min)

11 (10 to 100 L/min)

21 (50 to 250 L/min)

1 (0.5 to 20 L/min)

2 (2.5 to 100 L/min)

3 (5 to 200 L/min)

04 (0.5 to 4 L/min)

Set Flow

10 (1~10l/min)

20 (10~20l/min)

50 (20~50l/min)

1 (20 to 1500 l/min)

0 (14 to 60 l/min)

3 (36 to 2600 l/min)

Temperature sensor

T (Temperature Sensor)

T (OUT2: Analog 1 to 5V, w/Temperature Sensor)

Terminal Box

1 [Terminal Box (Contact 1ab)]

0 [w/o Terminal Box (Contact 1ab)]

6 [Terminal Box (For 24VDC, +COM, Contact 1a)]

8 [Terminal Box (For 24VDC, -COM, Contact 1a)]

5 [Terminal Box (For 24VDC, +COM, Contact 1b)]

2 [Terminal Box (Contact 2b)

7 [Terminal Box (For 24VDC, -COM, Contact 1b)]

Thread

N (NPT)

F (G)

Rc(PT)

N (NPT Thread)

F (G thread)

F [G(PF)]

Unit

Unit Change Function

M (S1 Fixed Unit)

Unit Specification

M (Instantaneous Flow Rate: L/min; Accumulated Flow: L; Temp: °C)

F (Instantaneous Flow Rate: Gal/min; Accumulated Flow: Gal; Temp: °F)

G (Instantaneous Flow Rate: Gal/min; Accumulated Flow: Gal; Temp: °C)

J (Instantaneous Flow Rate: L/min; Accumulated Flow: L; Temp: °F)

M (Instantaneous Flow: L/min, Accumulated Flow: L,Temperature: °C)

M (Instantaneous Flow: L/min; Accumulated Flow: L; Temperature: °C)

Instantaneous Flow: L/min, Temperature: °C

G (Instantaneous Flow: gal/min; Accumulated Flow: gal; Temperature: °C)

Units on Label

Instantaneous Flow Rate: L/min; Accumulated Flow: L; Temp: °C

Wiring Specification

3m Lead Wire w/Connector

N (w/o Lead Wire)

PF2W520-04N-1

DIGITAL FLOW SWITCH, WATER, PF2W, IFW, DIGITAL FLOW SWITCH FOR WATER

PF2W520-F03-2

PF2W520-N03N-1

PF2W520-N03N-2

PF2W520-N04N-1

DIGITAL FLOW SWITCH, WATER, PF2W, IFW, Digital Flow Switch for Water

PF2W520T-04-2

PF2W520T-N03-1

PF2W520T-N03N-2

PF2W520T-N04-1

PF2W540-04-2

PF2W540-04N-1

PF2W540-06N

PF2W540-F04-2

PF2W540-N04

PF2W540-N04N

PF2W540T-04

PF2W540T-04-1

PF2W540T-F06-2

PF2W540T-N06-2

PF2W704-F03-27

Pneumatics

Sensors &amp; Switches

Liquid Flow Devices