3-Colour Display Digital Flow Switch for Water, PF3W Series (PF3W520S-N04-1)

SMC

Product Details:

Manufacturer part number: PF3W520S-N04-1

Brand: SMC

Price: 495.98 €

Delivery time: 26 Days

Technical Data:

Type: [Flow Switch] Flow Switch for Water

Flow Rate Range (Max. Value): 10～Less than 50 L/min

Sensor/Monitor Configuration: [Separate Type, Connector Joint] Separated sensor

Output Method: Analog

Analog Output Specification: Voltage

(i)Remark

See catalog for specification details.
Product pictures are representations. Refer to the catalog for details.

Part Number

Once your search is narrowed to one product,
the corresponding part number is displayed here.

PF3W520S-N04-1

Product specification
Part Numbers
Catalog

3-Color Display, Digital Flow Switch for Water, PF3W Series Specifications

How to Order

Specifications (Integrated Display)

Model			PF3W704	PF3W720	PF3W740	PF3W711	PF3W721
Applicable fluid			Water and ethylene glycol aqueous solution (with viscosity of 3 mPa・s [3 cP] or less)^∗1
Detection method			Karman vortex
Rated flow range			0.5 to 4 L/min	2 to 16 L/min	5 to 40 L/min	10 to 100 L/min	50 to 250 L/min
Display flow range			0.35 to 5.50 L/min (Flow under 0.35 L/min is displayed as “0.00”)	1.7 to 22.0 L/min (Flow under 1.7 L/min is displayed as “0.0”)	3.5 to 55.0 L/min (Flow under 3.5 L/min is displayed as “0.0”)	7 to 140 L/min (Flow under 7 L/min is displayed as “0”)	20 to 350 L/min (Flow under 20 L/min is displayed as “0”)
Set flow range			0.35 to 5.50 L/min	1.7 to 22.0 L/min	3.5 to 55.0 L/min	7 to 140 L/min	20 to 350 L/min
Smallest settable increment			0.01 L/min	0.1 L/min		1 L/min	2 L/min
Conversion of accumulated pulse (Pulse width: 50 ms)			0.05 L/pulse	0.1 L/pulse	0.5 L/pulse	1 L/pulse	2 L/pulse
Fluid temperature			0 to 90℃ (No freezing or condensation)				0 to 70°C (No freezing or condensation)
Display unit			Instantaneous flow: L/min, Accumulated flow: L
Accuracy			Display value: ±3% F.S. Analog output: ±3% F.S.
Repeatability			±2% F.S.^∗2
Temperature characteristics			±5% F.S. (25℃ standard)
Operating pressure range^∗3			0 to 1 MPa
Proof pressure^∗3			1.5 MPa
Pressure loss (without flow adjustment valve			45 kPa or less at the maximum flow				60 kPa or less at the maximum flow
Accumulated flow range^∗4			99999999.9 L		999999999 L
Accumulated flow range^∗4			By 0.1 L	By 0.5 L	By 1 L
Switch output			NPN or PNP open collector output
	Max. load current		80 mA
	Max. applied voltage		28 VDC
	Internal voltage drop		NPN: 1 V or less (at load current of 80 mA) PNP: 1.5 V or less (at load current of 80 mA)
	Response time^∗2, 5		0.5 s/1 s/2 s
	Output protection		Short-circuit protection
	Output mode	Flow rate	Select from Hysteresis, Window comparator, Accumulated output, or Accumulated pulse output modes.
	Output mode	Temperature	Select from Hysteresis mode or Window comparator mode.
Analog output	Response time^∗6		0.5 s/1 s/2 s (linked with the switch output)
	Voltage output		Voltage output: 1 to 5 V Output impedance: 1 kΩ
	Current output		Output current: 4 to 20 mA Max. load impedance: 300Ω for 12 VDC, 600Ω for 24 VDC
Hysteresis			Variable
External input			Voltage free input: 0.4 V or less (Reed or Solid state), input for 30 ms or longer
Display method			2-screen display (Main screen: 4-digit, 7-segment, 2-color, Red/Green Sub screen: 6-digit, 11-segment, White) Display values updated 5 times per second
Indicator light			Output 1, Output 2: Orange
Power supply voltage			12 to 24 VDC ±10%
Current consumption			50 mA or less
Environment	Enclosure		IP65
	Operating temperature range		0 to 50℃ (No freezing or condensation)
	Operating humidity range		Operation, Storage: 35 to 85% R.H. (No condensation)
	Withstand voltage^∗7		1000 VAC for 1 minute between terminals and housing
	Insulation resistance		50 MΩ or more (500 VDC measured via megohmmeter) between terminals and housing
Standards and regulations			CE/UKCA marking, UL (CSA)
Wetted parts material^∗8			PPS, Stainless steel 304, FKM, SCS13
Wetted parts material^∗8			Non-grease
Piping port size^∗9			3/8	3/8, 1/2	1/2, 3/4	3/4, 1	1 1/4, 1 1/2
Weight	Without temperature sensor/ Without flow adjustment valve		210 g	260 g	410 g	720 g	890 g
	With temperature sensor/ Without flow adjustment valve		285 g	335 g	530 g	860 g	1075 g
	Without temperature sensor/ With flow adjustment valve		310 g	360 g	610 g	-	-
	With temperature sensor/ With flow adjustment valve		385 g	435 g	730 g	-	-
	With lead wire with connector		+85 g

∗1 Refer to the graph of measurable range for ethylene glycol aqueous solution on page 10. Measurement is possible as long as the fluid does not corrode the wetted parts and viscosity is 3 mPa・s (3 cP) or less. Be aware that water leakage may occur due to internal seal shrinkage or swelling depending on the type of fluid.
∗2 If 0.5 s is selected for the response time of the switch output, the repeatability will be ±3% F.S.
∗3 The operating pressure range and proof pressure may change according to the fluid temperature. Refer to the graphs on page 8.
∗4 Cleared when the power supply is turned off. The hold function can be selected. (Intervals of 2 or 5 minutes can be selected.)
If the 5-minute interval is selected, the life of the memory element (electronic parts) is limited to 1 million times. (If energized for 24 hours, life is calculated as 5 minutes x 1 million = 5 million minutes = about 9.5 years.) Therefore, if using the hold function, calculate the memory life for your operating conditions, and use within this life.
∗5 The response time when the set value is 90% in relation to the step input (The response time is 7 s when it is output by the temperature sensor.)
∗6 The response time until the set value reaches 90% in relation to the step input (The response time is 7 s when it is analog output by the temperature sensor.)
∗7 When the temperature sensor is used, it will be 250 VAC.
∗8 For details, refer to “Wetted Parts Construction” on page 10.
∗9 When the piping diameter or piping passage is restricted, the specifications may not be satisfied.
∗ Products with tiny scratches, marks, or display color or brightness variations which do not affect the performance of the product are verified as conforming products.

Specifications (Remote Sensor Unit)

Model		PF3W504	PF3W520	PF3W540	PF3W511	PF3W521
Applicable fluid		Water and ethylene glycol aqueous solution (with viscosity of 3 mPa・s [3 cP] or less)^*1
Detection method		Karman vortex
Rated flow range		0.5 to 4 L/min	2 to 16 L/min	5 to 40 L/min	10 to 100 L/min	50 to 250 L/min
Fluid temperature		0 to 90℃ (No freezing or condensation)				0 to 70℃ (No freezing or condensation)
Accuracy		±3% F.S.
Repeatability		±2% F.S.
Temperature characteristics		±5% F.S. (25℃ standard)
Operating pressure range^*2		0 to 1 MPa^*2
Proof pressure^*2		1.5 MPa
Pressure loss (without flow adjustment valve)		45 kPa or less at the maximum flow				60 kPa or less at the maximum flow
Analog output	Response time^*3	1 s
	Voltage output	Voltage output: 1 to 5 V Output impedance: 1 kΩ
	Current output	Output current: 4 to 20 mA Max. load impedance: 300Ω for 12 VDC, 600Ω for 24 VDC
Indicator light		For power supply status, flow rate indicator (Blinking speed changes in response to flow rate.), and other error indicator
Power supply voltage		12 to 24 VDC ±10%
Current consumption		30 mA or less
Environment	Enclosure	IP65
	Operating temperature range	0 to 50℃ (No freezing or condensation)
	Operating humidity range	Operation, Storage: 35 to 85% R.H. (No condensation)
	Withstand voltage^*4	1000 VAC for 1 minute between terminals and housing
	Insulation resistance	50 MΩ or more (500 VDC measured via megohmmeter) between terminals and housing
Standards and regulations		CE/UKCA marking, UL (CSA)
Wetted parts material^*5		PPS, Stainless steel 304, FKM, SCS13
Wetted parts material^*5		Non-grease
Piping port size^*6		3/8	3/8, 1/2	1/2, 3/4	3/4, 1	1 1/4, 1 1/2
Weight	Without temperature sensor/ Without flow adjustment valve	195 g	245 g	395 g	705 g	875 g
	With temperature sensor/ Without flow adjustment valve	270 g	320 g	515 g	840 g	1060 g
	Without temperature sensor/ With flow adjustment valve	295 g	345 g	595 g	-	-
	With temperature sensor/ With flow adjustment valve	370 g	415 g	715 g	-	-
	With lead wire with connector	+85 g

Constructions

No.	Description	Material	Note
1	Attachment	SCS13	Stainless steel 304 equivalent PF3W704/720/740/711/504/520/540/511
1	Attachment	Stainless steel 304	PF3W721/521
2	Seal	FKM
3	Body	PPS
4	Sensor	PPS
5	Temperature sensor	Stainless steel 304
6	Temperature sensor body	Stainless steel 304
7	Flow adjustment valve body	PPS
8	Flow adjustment valve cover	PPS
9	Flow adjustment valve shaft	Stainless steel 304
10	Shaft support	PPS
11	Seal	FKM
12	Seal	FKM

Dimensions

PF3W704/720/740/711/721 Integrated display

(mm)

Pin no.	Pin name
1	DC (+)
2	OUT2
3	DC (-)
4	OUT1

PF3W504/520/540/511/521 Remote sensor unit

Model	Port Size (Rc, NPT, G)	A	AA	B	D	DD	E	F	G	H	J	K	L	N	P	Bracket dimensions
Model	Port Size (Rc, NPT, G)	A	AA	B	D	DD	E	F	G	H	J	K	L	N	P	S	T	U	V	W	WX	Y	Z
PF3W704/504	3/8	70	50	30	60	45.6	40.6	15.2	24	14	35	26	18	13.6	ø2.7depth 14	S	T	U	V	W	WX	Y	24	22	32	40	50	4.5	5	1.5
PF3W720/520	3/8, 1/2	78	54	30	60	45.6	40.6	15.2	27	18	39	30	18	13.6	ø2.7 depth 12	28	22	32	40	50	4.5	5	1.5
PF3W740/540	1/2, 3/4	98	71	38	68	53.6	48.6	19.2	32	28	49	35	28	16.8	ø2.7 depth 12	34	30	42	48	58	4.5	5	1.5
PF3W711/511	3/4, 1	124	92	46	77	62.6	57.6	23.0	41	42	63	48	28	18.0	ø3.5 depth 14	44	36	48	58	70	5.5	7	2.0
PF3W721/521	1 1/4, 1 1/2	104	74	56	91	76.6	71.6	28.5	54	31	52	39.5	25	27.5	ø3.5 depth 14	-	-	-	-	-	-	-	-
	G1 1/4	108	76							33	54	41.5
	G1 1/2	112	78							35	56	43.5

PF3W704/720/740/711/721--T
Integrated display: With temperature sensor

PF3W504/520/540/511/521--T
Remote sensor unit: With temperature sensor

(mm)

Model	A	AA
PF3W704/504-□-□T	81	50
PF3W720/520-□-□T	89	54
PF3W740/540-□-□T	109	71
PF3W711/511-□-□T	135	92
PF3W721/521-□-□T	115	74
PF3W721/521-F12-□T	119	76
PF3W721/521-F14-□T	123	78

PF3W704S/720S/740S
Integrated display: With flow adjustment valve

PF3W504S/520S/540S
Remote sensor unit: With flow adjustment valve

(mm)

Model	A	AA	B	D	F	K	L	N	P	Q	Q Number of rotations	Bracket dimensions
Model	A	AA	B	D	F	K	L	N	P	Q	Q Number of rotations	S	T
PF3W704S/504S	104	50	63.6 (Max. 68.6)	70.2	34	58.5	18	13.6	ø2.7 depth 10	ø19	6	S	T	56.5	22
PF3W720S/520S	112	54	63.6 (Max. 68.6)	74.2	34	62.5	18	13.6	ø2.7 depth 10	ø19	6	60.5	22
PF3W740S/540S	142	71	75.25 (Max. 81)	94.5	44	79.0	28	16.8	ø2.7 depth 10	ø28	7	78.0	30

PF3W704S/720S/740S--T
Integrated display:
With temperature sensor and flow adjustment valve

PF3W504S/520S/540S--T
Remote sensor unit:
With temperature sensor and flow adjustment valveImage

(mm)

Model	A	AA	D	K	S
PF3W704S/504S-□-□T	115	50	81.2	69.5	67.5
PF3W720S/520S-□-□T	123	54	85.2	73.5	71.5
PF3W740S/540S-□-□T	153	71	105.5	90.0	89.0

ZS-40-A
Lead wire with M8 connector

Lead Wire Specifications

Pin no.	Pin name	Wire color
1	DC (+)	Brown
2	OUT2	White
3	DC (-)	Blue
4	OUT1	Black

Conductor	Nominal cross section	AWG23
Conductor	O.D.	Approx. 0.7 mm
Insulator	Material	Heat-resistant PVC
	O.D.	Approx. 1.1 mm
	Color	Brown, White, Black, Blue
Sheath	Material	Heat- and oil-resistant PVC
Finished O.D.		ø4

*4-wire type lead wire with M8 connector used for the PF3W series
*For wiring, refer to the “Operation Manual” on the SMC website (http://www.smcworld.com).

Data to be displayed: 30; 45; 60

Part Number
PF3W520S-N04-1

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	Type	Flow Rate Range (Max. Value) (L/min)	Sensor/Monitor Configuration	Output Method	Analog Output Specification	Pipe Port Type	Plumbing Thread Type	Nominal Pipe Thread Size	Pressure Resistance (MPa)	Operating Temperature Range (℃)	Operating Humidity Range (%)	No. of Inputs	No. of Outputs	Analog Voltage Output (V)	Pipe Connection Direction	Liquid contact parts material	Mounting Hole	Display	Lamp	Acquired Standards	Bracket	Lead Wire	Calibration Certificate included	Flow rate control valve	Temperature Sensor	Unit Specifications (Instantaneous Flow Rate)	Unit Specifications (Integrated Flow Rate)	Unit Specifications (Temperature)	Custom-made Specifications	Rating Flow Range (L/min)	Output Specification	Analog Current Output (mA)	Tube outer diameter (mm)
	495.98 €	1		26 Days	[Flow Switch] Flow Switch for Water	10～Less than 50	[Separate Type, Connector Joint] Separated sensor	Analog	Voltage	Female Thread	[NPT] NPT	[1/2] 1/2	1.5	0～50	35～85	1	1	[1 to 5 V DC] 1 to 5 V	2 Directions	Resin + Metal	Available	Digital	Available	CE	None	Lead wire with M8 connector available (3 m)	Without calibration certificate	Available	Without temperature sensor	L/min	None	°C	None	2 to 16	None	None	-

Basic information

Fluid Type	Water	Pressure Type	Standard	Flow Rate Type	Standard
Power Supply Type	DC	Power Supply Voltage(V)	12 to 24 ±10%	Protective Structure	IP65

This page is 3-Colour Display Digital Flow Switch for Water, PF3W Series, part number PF3W520S-N04-1.
You can find the detail information about specifications and dimensions on part number PF3W520S-N04-1.

Configure

1Suggestion of an applicable part number.

View Part Numbers

Some specification is not specified yet.

The part number is completed.

Basic Attributes

Tube outer diameter(mm)
- 25 A
- 30 A
Clear
Type
- PF3W5□
- PF3W5□S
- PF3W7□
- PF3W7□S
Clear
Type
- Flow Switch
  - Flow Switch
  - Flow Switch for Water
Clear
Flow Rate Range (Max. Value)(L/min)
- to less than 10
- 10～Less than 50
- 100～Less than 500
Clear
Sensor/Monitor Configuration
- Integrated Type
  - Display Integrated
- Separate Type, Connector Joint
  - Separated sensor
Clear
Output Method
- NPN Open Collector
- PNP Open Collector
- Analog
- Switch
Clear
Analog Output Specification
- Voltage
- Current
Clear
Pipe Port Type
- Female Thread
- Direct Mount
  - Direct Mount
Clear
Plumbing Thread Type
- Rc (R)
  - Rc
- G
  - G
- NPT
  - NPT
Clear
Nominal Pipe Thread Size
- 3/8
  - 3/8
- 1/2
  - 1/2
- 3/4
  - 3/4
- 1
  - 1
- 1 1/4
- 1 1/2
  - 1 1/2
Clear
No. of Inputs
- 1
- 2
Clear
No. of Outputs
- 1
- 2
Clear
Analog Voltage Output(V)
- 1 to 5 V DC
  - 1 to 5 V
Clear
Pipe Connection Direction
2 Directions
Clear
Liquid contact parts material
- Resin
  - Resin
- Resin + Metal
Clear
Bracket
None

With Bracket
Clear
Lead Wire
- No lead wire with M8 connector
- Lead wire with M8 connector available (3 m)
- None
Clear
Calibration Certificate included
- Calibration certificate available
- Without calibration certificate
Clear
Flow rate control valve
- Available
- None
- With flow adjustment valve
Clear
Temperature Sensor
- With temperature sensor
- Without temperature sensor
Clear
Unit Specifications (Instantaneous Flow Rate)
- L/min
- L/min (gal/min)
- gal/min
Clear
Unit Specifications (Integrated Flow Rate)
- L
- None
- gal
Clear
Unit Specifications (Temperature)
- °C
- ℃／℉
- ℉
Clear
Custom-made Specifications
- Analog 4 to 20 mA 2 outputs
- None
- Pipe material brass specifications
- Seal material: EPDM
Clear
Rating Flow Range(L/min)
- 0.5 to 4
- 2 to 16
- 5 to 40
- 10 to 100
- 30 to 250
- 50 to 250
Clear
Output Specification
- Cumulative value, peak value, bottom value can be selected for reset
- IO-link / switch output (N/P)
- None
Clear
Analog Current Output(mA)
- 4 to 20
- None
Clear
Filter by CAD data type
- 2D
- 3D
Clear

Filter by standard shipping days

All

4 Days or Less

5 Days or Less

7 Days or Less

16 Days or Less

17 Days or Less

22 Days or Less

24 Days or Less

26 Days or Less

55 Days or Less

68 Days or Less
Reset

Optional Attributes

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Variation of this product

Part Number
PF3W504-03-1N
PF3W504-03-1T
PF3W504-03-1T-R
PF3W520S-N04-1T
PF3W520S-N04-1T-R
PF3W520S-N04-1T-RA

Standard Unit Price	Minimum order quantity	Standard Shipping Days ?	Type	Flow Rate Range (Max. Value) (L/min)	Sensor/Monitor Configuration	Output Method	Analog Output Specification	Pipe Port Type	Plumbing Thread Type	Nominal Pipe Thread Size	Pressure Resistance (MPa)	Operating Temperature Range (℃)	Operating Humidity Range (%)	No. of Inputs	No. of Outputs	Analog Voltage Output (V)	Pipe Connection Direction	Liquid contact parts material	Mounting Hole	Display	Lamp	Acquired Standards	Bracket	Lead Wire	Calibration Certificate included	Flow rate control valve	Temperature Sensor	Unit Specifications (Instantaneous Flow Rate)	Unit Specifications (Integrated Flow Rate)	Unit Specifications (Temperature)	Custom-made Specifications	Rating Flow Range (L/min)	Output Specification	Analog Current Output (mA)	Tube outer diameter (mm)
411.23 €	1	26 Days	[Flow Switch] Flow Switch for Water	to less than 10	[Separate Type, Connector Joint] Separated sensor	Analog	Voltage	Female Thread	[Rc (R)] Rc	[3/8] 3/8	1.5	0～50	35～85	1	1	[1 to 5 V DC] 1 to 5 V	2 Directions	Resin + Metal	Available	Digital	Available	CE	None	No lead wire with M8 connector	Without calibration certificate	None	Without temperature sensor	L/min	None	°C	None	0.5 to 4	None	None	-
515.61 €	1	26 Days	[Flow Switch] Flow Switch for Water	to less than 10	[Separate Type, Connector Joint] Separated sensor	Analog	Voltage	Female Thread	[Rc (R)] Rc	[3/8] 3/8	1.5	-	35～85	1	2	[1 to 5 V DC] 1 to 5 V	2 Directions	Resin + Metal	Available	Digital	Available	CE	None	Lead wire with M8 connector available (3 m)	Without calibration certificate	None	With temperature sensor	L/min	None	°C	None	0.5 to 4	None	None	-
526.44 €	1	26 Days	[Flow Switch] Flow Switch for Water	to less than 10	[Separate Type, Connector Joint] Separated sensor	Analog	Voltage	Female Thread	[Rc (R)] Rc	[3/8] 3/8	1.5	-	35～85	1	2	[1 to 5 V DC] 1 to 5 V	2 Directions	Resin + Metal	Available	Digital	Available	CE	With Bracket	Lead wire with M8 connector available (3 m)	Without calibration certificate	None	With temperature sensor	L/min	None	°C	None	0.5 to 4	None	None	-
572.53 €	1	26 Days	[Flow Switch] Flow Switch for Water	10～Less than 50	[Separate Type, Connector Joint] Separated sensor	Analog	Voltage	Female Thread	[NPT] NPT	[1/2] 1/2	1.5	-	35～85	1	2	[1 to 5 V DC] 1 to 5 V	2 Directions	Resin + Metal	Available	Digital	Available	CE	None	Lead wire with M8 connector available (3 m)	Without calibration certificate	Available	With temperature sensor	L/min	None	°C	None	2 to 16	None	None	-
594.23 €	1	26 Days	[Flow Switch] Flow Switch for Water	10～Less than 50	[Separate Type, Connector Joint] Separated sensor	Analog	Voltage	Female Thread	[NPT] NPT	[1/2] 1/2	1.5	0～50	35～85	1	2	[1 to 5 V DC] 1 to 5 V	2 Directions	Resin + Metal	Available	Digital	Available	CE	With Bracket	Lead wire with M8 connector available (3 m)	Without calibration certificate	Available	With temperature sensor	L/min	None	°C	None	2 to 16	None	None	-
640.35 €	1	26 Days	[Flow Switch] Flow Switch for Water	10～Less than 50	[Separate Type, Connector Joint] Separated sensor	Analog	Voltage	Female Thread	[NPT] NPT	[1/2] 1/2	1.5	-	35～85	1	2	[1 to 5 V DC] 1 to 5 V	2 Directions	Resin + Metal	Available	Digital	Available	CE	With Bracket	Lead wire with M8 connector available (3 m)	Calibration certificate available	Available	With temperature sensor	L/min	None	°C	None	2 to 16	None	None	-