SMC PF3W7 Digital Flow Switch for Water, 3-Color Display, Integrated Display - PF3W721-N12-BT-F

Item #:

PF3W721-N12-BT-F

Brand:

SMC

SMC PF3W7 Digital Flow Switch for Water, 3-Color Display, Integrated Display - PF3W721-N12-BT-F

Ask an Expert

Our tech experts are ready to help!

1-866-4 JJSTECH (1-866-455-7832)

Email Us

Share this product:

Description

PF3W7 Digital Flow Switch for Water, 3-Color Display, Integrated Display by SMC

Series PF3W digital flow switch is perfect for applications requiring a constantly monitored flow of cooling or cleaning water. The PF3W series has been improved both in design and operating performance over the PF2W flow switch. Depending on the selected model, the PF3W is up to 40% smaller in volume, offering improved piping space and flexibility. Designed to work with fluids up to 90°C, these switches incorporate a built-in temperature sensor so both flow and fluid temperature can be effectively monitored at the same time. Further improvements include the addition of 2 screens, incorporating 3-color numerical displays which can also be rotated in both clockwise and counter-clockwise directions, thereby offering even better display visibility during operation. Available as non-grease type and with analogue output if required, the PF3W meets IP 65 enclosure protection standards and is both RoHS and CE compliant.

Digital flow switch for water applications
Integrated display type
Flow rate range: 0.5-4(L/min) ~ 10-100(L/min)
3-color, 2-screen display
Port sizes: 3/8, 1/2, 3/4, 1

Product contains:

3-Color Digital Flow SWITCH for Water
21 (50 to 250 L/min)
N (NPT)
12 (1 1/4)
B (OUT1: PNP, OUT2: PNP)
T (Temperature Sensor)
Lead Wire w/M8 Connector, 3m
F (Instantaneous Flow Rate: Gal/min; Accumulated Flow: Gal: Temp: °F)

Specifications

Specifications of body (Metal attachment)

Model			PF3W704	PF3W720	PF3W740	PF3W711	PF3W721
Applicable fluid			Water and ethylene glycol solution with a viscosity of 3mPa•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 (Displays 0.00 when the value is below 0.35 L/min)	1.7 to 22.0 L/min (Displays 0.0 when the value is below 1.7 L/min)	3.5 to 55.0 L/min (Displays 0.0 when the value is below 3.5 L/min)	7 to 140 L/min (Displays 0 when the value is below 7 L/min)	20 to 350 L/min (Displays 0 when the value is below 20 L/min)
Switch point 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
Min. setting unit			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 °C (No freezing and condensation)				0 to 70 °C (No freezing and condensation)
Display unit			L/min for real-time flow and L for accumulated flow
Accuracy			±3%F.S. max. Display and analogue output
Repeatability			±2%F.S. max *^2**
Temperature characteristics			±5%F.S. max. (25 °C reference)
*Operating pressure range ^3**			Refer to graph of operating pressure and proof pressure
*Proof pressure ^3**			Refer to graph of operating pressure and proof pressure
Pressure loss			Refer to graph of pressure loss
*Accumulated flow range ^4**			99999999.9 L		999999999 L
			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 max. (at 80 mA load current) PNP: 1.5 V max. (at 80 mA load current)
	*Response time ^2 ^5*		0.5 s/1 s/2 s
	Output protection		Short circuit protection
	Output mode	Flow	Selects one of the output (hysteresis or window comparator mode), the output for the accumulated flow and the accumulated pulse output.
		Temp	Selects the output for fluid temperature (hysteresis mode or window comparator mode).
Analogue output	*Response time ^6**		0.5 s/1 s/2 s
	Voltage output		Output voltage: 1 to 5 V Output impedance: 1 kΩ
	Current output		Output current: 4 to 20 mA Maximum load impedance: 300 Ω for 12 VDC, 600 Ω for 24 VDC
Hysteresis			Variable
External input			Voltage free input of 0.4 V or less (reed or solid state type) for 30 ms or longer
Display method			2-screen display (Main screen: 4-digit, 7-segment, 2-colour; red/green, Sub screen: 6-digit, 11-segment, White) Display updating frequency 5 times/sec.
Indicator light			Output 1 and 2: Orange
Power supply voltage			12 to 24 VDC ±10%
Current consumption			50 mA max.
Environment	Enclosure		IP65
	Operating temperature range		0 to 50 °C (No freezing and condensation)
	Operating humidity range		Operation, Storage: 35 to 85%R.H. (No condensation)
	*Withstand voltage ^7**		1000 VAC, for 1 minute between the terminals and housing
	Insulation resistance		50 MΩ min. (with 500 VDC) between the terminals and housing
Standards and regulations			CE marking, UL (CSA), RoHS
Material of wetted part			PPS, SUS304, FKM, SCS13				PPS, SUS304, FKM
			Grease free
*Piping port size ^8**			3/8	3/8, 1/2	1/2, 3/4	3/4, 1	11/4, 11/2
Weight	Flow switch only		210 g	260 g	410 g	720 g	890 g
	With temperature sensor		285 g	335 g	530 g	860 g	1075 g
	With flow adjustment valve		310 g	360 g	610 g	-	-
	With temperature sensor and flow adjustment valve		385 g	435 g	730 g	-	-
	With lead wire		+85 g

Specifications of temperature sensor:

Items	Specifications
Rated temperature range	0 to 100 °C ^*1
Setting/display temperature range	-10 to 110 °C
Min. setting/display unit	1 °C
Display unit	°C
Display accuracy	±2 °C
Analogue output accuracy	±3%F.S.
Response time	7 s ^*2
Ambient temperature characteristics	±5%F.S.

Specifications of body (Vinyl chloride piping):

Model			PF3W711	PF3W721
Applicable fluid			Water and ethylene glycol solution with a viscosity of 3mPas(3 cP) or less ^*1
Detection method			Karman vortex
Rated flow range			10 to 100 L/min	30 to 350 L/min
Display flow range			7 to 140 L/min (Displays 0 when the value is below 7 L/min)	20 to 350 L/min (Displays 0 when the value is below 20 L/min)
Switch point range			7 to 140 L/min	20 to 350 L/min
Min. setting unit			1 L/min	2 L/min
Conversion of accumulated pulse (Pulse width = 50ms)			1 L/pulse
Fluid temperature			0 to 70 °C (No freezing and condensation)
Display unit			L/min for real-time flow and L for accumulated flow
Accuracy			±3%F.S. max. Display and analogue output
Repeatability			±2%F.S. max. ^*2
Temperature characteristics			±5%F.S. max. (25 °C reference)
*Operating pressure range ^3**			Refer to graph of operating pressure and proof pressure
*Proof pressure ^3**			Refer to graph of operating pressure and proof pressure
Pressure loss			Refer to graph of pressure loss
*Accumulated flow range ^4**			999999999 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 max. (at 80 mA load current) PNP: 1.5 V max. (at 80 mA load current)
	*Response time ^{2 5}*		0.5 s/1 s/2 s
	Output protection		Short circuit protection
	Output mode	Flow	Selects one of the output (hysteresis or window comparator mode), the output for the accumulated flow and the accumulated pulse output.
		emp.	Selects the output for fluid temperature (hysteresis or window comparator mode).
Analogue output	*Response time ^6**		0.5 s/1 s/2 s
	Voltage output		Output voltage: 1 to 5 V, Output impedance: 1 kΩ
	Current output		Output current: 4 to 20 mA Maximum load impedance: 300 Ω for 12 VDC, 600 Ω for 24 VDC
Hysteresis			Variable
External input			Voltage free input of 0.4 V or less (reed or solid state type) for 30 ms or longer
Display method			2-screen display (Main screen: 4-digit, 7-segment, 2-colour; red/green, Sub screen: 6-digit, 11-segment, White) Display updating frequency 5 times/sec.
Indicator light			Output 1 and 2: Orange
Power supply voltage			12 to 24 VDC ±10%
Current consumption			50 mA max.
Environment	Enclosure		IP65
	Operating temperature range		0 to 50 °C (No freezing and condensation)
	Operating humidity range		Operation, Storage: 35 to 85%R.H. (No condensation)
	Withstand voltage		1000 VAC, for 1 minute between the terminals and housing
	Insulation resistance		50 MΩ min. (with 500VDC) between the terminals and housing
Standards and regulations			CE marking, UL (CSA), RoHS
Material of wetted part			PPS, FKM, CPVC
			Grease free
*Piping port size ^7**			25 A	30 A
Weight	Without lead wire		285 g	340 g
	With lead wire		370 g	425 g

Flow specification of the specified order (flow unit: gal):

Model		PF3W704	PF3W720	PF3W740	PF3W711	PF3W721
Rated flow range		0.13 to 1.06 gal/min	0.53 to 4.23 gal/min	1.3 to 10.6 gal/min	2.6 to 26.4 gal/min	13 to 66 gal/min
Instantaneous flow	Display flow range	0.09 to 1.45 gal/min (Flow under 0.09L/min is displayed as "0.00".)	0.45 to 5.81 gal/min (Flow under 0.45 L/min is displayed as "0.00".)	0.9 to 14.5 gal/min (Flow under 0.9 L/min is displayed as "0.0".)	1.8 to 37.0 gal/min (Flow under 1.8 L/min is displayed as "0.0".)	5 to 92 gal/min (Flow under 5 L/min is displayed as "0".)
	Setting flow range	0.09 to 1.45 gal/min	0.45 to 5.81 gal/min	0.9 to 14.5 gal/min	1.8 to 37.0 gal/min	5 to 92 gal/min
	Min. setting/display unit	0.01 gal/min		0.1 gal/min		1 gal/min
Accumulated flow	Setting/display flow unit	99999999.9 gal	999999999 gal
Accumulated flow	Min. setting/diplay unit	0.1 gal	1 gal
Conversion of accumulated pulse		0.01 gal/pulse	0.05 gal/pulse	0.1 gal/pulse	0.5 gal/pulse	1 gal/pulse

Temperature specification of the specified order (temp. unit: °F):

Rated temperature range ^*	32 to 212 °F
Setting/display temperature range	14 to 230 °F
Min. setting/display unit	1 o°F

Specifications: lead wire with M8 connector (ZS-40-A)

Items		Specifications
Conductor	Nominal cross section area	AWG23
Conductor	Outside diameter	Approx. 0.72 mm
Insulator	Outside diameter	Approx. 1.14 mm
Insulator	Colours	Brown, White, Black, Blue
Sheath	Outer diameter	Φ3.4 mm

Datasheets & User Manuals

$1,338.31

Write a Review

SMC PF3W7 Digital Flow Switch for Water, 3-Color Display, Integrated Display - PF3W721-N12-BT-F

Ask an Expert