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Digital Flow Switch For Air PF2A Series (PF2A721-03-27)

Digital Flow Switch For Air PF2A Series PF2A721-03-27

SMC

SMC

[Features]
・ Digital flow rate setting and detection are possible
・ Available in 2 types: integrated display type and separate type
・ It supports switch output, integrated pulse output, and analog output
・ Instantaneous flow rate and integrated flow rate can be switched
・ 2 independent flow rates can be set
・ Protective structure IP65

(i)Caution

  • See catalog for specification details.
  • Product pictures are representations. CAD data is not supported for some model numbers.

PDF

Part Number

Configured Part Number is shown.

PF2A721-03-27

Specifications of Digital Flow Switch for Air PF2A Series

External appearance of PF2A7 Series (Integrated display type)

External appearance of PF2A7 Series (Integrated display type)

External appearance of PF2A5 Series (Remote type / sensor part)

External appearance of PF2A5 Series (Remote type / sensor part)

Specifications of PF2A7

ModelPF2A710PF2A750PF2A711PF2A721PF2A751
Measured fluidAir, nitrogen
Flow rate measurement range0.5 to 10.5 L/min2.5 to 52.5 L/min5 to 105 L/min10 to 210 L/min25 to 525 L/min
Set flow rate range0.5 to 10.5 L/min2.5 to 52.5 L/min5 to 105 L/min10 to 210 L/min25 to 525 L/min
Rated flow range1 to 10 L/min5 to 50 L/min10 to 100 L/min20 to 200 L/min50 to 500 L/min
Minimum Unit Setting0.1 L/min0.5 L/min1 L/min2 L/min5 L/min
Accumulated pulse flow rate exchange value (pulse width: 50 ms)0.1 L/pulse0.5 L/pulse1 L/pulse2 L/pulse5 L/pulse
Display unit *1, 2)Instantaneous flow rateL/min, CFM × 10^-2L/min, CFM x 10^-1
Accumulated flow rateL, ft^3 × 10^-1
Operating Fluid Temperature0 to 50°C
Accuracy *3)±5% F.S.
Repeatability±1% F.S.±2% F.S.
Temperature characteristics±3% F.S. (15 to 35°C, 25°C reference), ±5% F.S. (0 to 50°C, 25°C reference)
Current Consumption150 mA or less160 mA or less170 mA or less
Weight *4)250 g290 g
Port size (Rc, NPT, G)1/8, 1/43/81/2
Detection TypeHeat type
Indicator light3-digit 7-segment LED
Operating Pressure Range-50 kPa to 0.5 MPa-50 kPa to 0.75 MPa
Withstand pressure1.0 MPa
Accumulated Flow Rate Range *5)0 to 999,999 L
Output Specifications *6)Switch outputNPN open collector: Maximum load current: 80 mA, Internal voltage drop: 1 V or less (with load current of 80 mA), Maximum applied voltage: 30 V, 2 outputs
PNP open collector maximum load current: 80 mA, internal voltage drop: 1.5 V or less (with load current of 80 mA), 2 outputs
Accumulated pulse outputNPN or PNP open collector (same as switch output)
Indicator lightLight up when output is turned ON, OUT1: green, OUT2: red
Response Time1 s or less
HysteresisHysteresis mode: Variable (It can be set from 0) Window comparator mode *7): Fixed (3 digits)
Power supply voltage12 to 24 V AC ±10%
EnvironmentProtective EnclosureIP65
Operating temperature rangeDuring operation: 0 to 50°C, during storage: -25 to 85℃ (However, no freezing or condensation)
Withstand Voltage1,000 V AC for 1 min. between terminals and housing
Insulation Resistance50 MΩ or more (500 V DC measured via insulation resistance tester) between terminals and housing
Certification, standards, etc.CE

*1) For digital flow switch with the unit switching function (For the type without the unit switching function, fixed SI unit [L/min or L, m^3, m^3 × 10^3] will be set. )
*2) The flow rate display can be switched between the basic condition of 0°C and 101.3 kPa and the basic condition (ANR) of 20°C, 101.3 kPa and 65% RH.
*3) A straight section that is 8 times or more the pipe diameter should be provided to the pipe on the IN side of the product. If not, the accuracy may fluctuate by ±5% F.S. or more.
*4) It does not include lead.
*5) The accumulated flow rate value is reset when the power supply is turned off.
*6) Switch output and accumulated pulse output can be selected during the initial setting.
*7) Window comparator mode: Since the hysteresis (H) will reach 3 digits, separate P_1, P_2 or n_1, n_2 by 7 digits or more. (In the case of OUT2, n_1 and n_2 will become n_3 and n_4, and P_1 and P_2 will become P_3 and P_4.)
*8) All flow switches comply with CE marking.
*9) For wiring and thread standard, refer to the instruction manual.
*10) Even in striving to improve the quality, products may have small scratches, smears or variations in display color and brightness, etc., that do not affect the performance, verified as conforming products.

Specifications of PF2A5

ModelPF2A510PF2A550PF2A511PF2A521PF2A551
Measured fluidAir, nitrogen
Detection TypeHeat type
Rated flow range1 to 10 L/min5 to 50 L/min10 to 100 L/min20 to 200 L/min50 to 500 L/min
Operating Pressure Range-50 kPa to 0.5 MPa-50 kPa to 0.75 MPa
Withstand pressure1.0 MPa
Operating Fluid Temperature0 to 50°C
Accuracy *1, 2)±5% F.S.
Repeatability *1)±1% F.S. (Connect with PF2A3□□), ±3% F.S. (Connect with PF2A2□□)
Temperature characteristics±2%F.S. (15 to 35°C, 25°C standard)
±3%F.S. (0 to 50°C, 25°C reference)
Output Specifications *3)Output for monitorAnalog voltage output (non-linear) output impedance 1 kΩ monitor section PF2A3□□ output
Analog outputVoltage output 1 to 5 V (Within the rated flow rate range)
Accuracy: ±5% F.S., minimum load impedance: 100 kΩ (Output Impedance: 1 kΩ)
Current output 4 to 20 mA (Within the rated flow rate range)
Accuracy: ±5% F.S., maximum load impedance: 300 Ω or less (12 V DC), 600 Ω or less (DC24V)
Power supply voltage12 to 24 V AC ±10%
Current Consumption100 mA or less110 mA or less
EnvironmentProtective EnclosureIP65
Operating temperature rangeDuring operation: 0 to 50°C, During storage: -25 to 85°C (No freezing or condensation)
Withstand Voltage1,000 V AC for 1 min. between terminals and housing
Insulation Resistance50 MΩ or more (500 V DC measured via insulation resistance tester) between terminals and housing
Certification, standards, etc.CE
Weight *4)200 g240 g
Port size (Rc, NPT, G)1/8, 1/43/81/2

*1) Total accuracy when combined with PF2A2□□/3□□.
*2) It can be provided a straight pipe section 8 times or more the pipe diameter on the IN side of the product. If not, the accuracy may fluctuate by ±5% F.S. or more.
*3) The output method is selected by default.
*4) It does not include lead. (add 20 g for models with analog output [when current or voltage output has been selected])
*5) The flow rate unit is based on 0°C and 101.3 kPa.
*6) All sensor parts comply with CE marking.
*7) For wiring and thread standard, refer to the instruction manual.
*8) Even in striving to improve the quality, products may have small scratches, smears or variations in display color and brightness, etc., that do not affect the performance, verified as conforming products.

Dimensions

For air, integrated display type

 

(Units: mm)

 

Dimensional drawing of PF2A710/750

Dimensional drawing of PF2A710/750

Connector pin number of PF2A710/750

Connector pin number of PF2A710/750

Pin name

  • 1: DC (+)
  • 2: OUT2
  • 3: DC (–)
  • 4: OUT1
Dimensional drawing of PF2A711/721/751

Dimensional drawing of PF2A711/721/751

* It can be provided a straight pipe section 8 times or more the pipe diameter on the inlet side of the switch.

For air, remote type / sensor type

 

(Units: mm)

 

Dimensional drawing of PF2A510/550

Dimensional drawing of PF2A510/550

Connector pin number of PF2A510/550

Connector pin number of PF2A510/550

Pin name

  • 1：DC（+）
  • 2: NC / Analog output
  • 3: DC (–)
  • 4: OUT

All output specification dimensions

  • Output only for monitor unit / A: 42 mm, B: 62 mm
  • Monitor output + analog output / A: 52 mm, B: 72 mm
Dimensional drawing of PF2A511/522/551

Dimensional drawing of PF2A511/522/551

All output specification dimensions

  • Monitor output only / A: 48 mm, B: 62 mm
  • Monitor output + analog output / A: 58 mm, B: 72 mm

* It can be provided a straight pipe section 8 times or more the pipe diameter on the inlet side of the switch.

Structural drawing of fluid contact part / sensor part

Structural drawing of PF2A710/750/PF2A510/550

Structural drawing of PF2A710/750/PF2A510/550

  • 1: Attachment/Material ADC
  • 2: Seal/Material NBR
  • 3: Mesh/Material SUS
  • 4: Body/Material PBT
  • 5: Sensor/Material PBT
Structural drawing of PF2A711/721/751 / PF2A511/521/551

Structural drawing of PF2A711/721/751 / PF2A511/521/551

  • 1: Attachment/Material ADC
  • 2: Seal/Material NBR
  • 3: Spacer/Material PBT
  • 4: Mesh/Material SUS
  • 5: Body/Material PBT
  • 6: Sensor/Material PBT

Notes

  • *Refer to the SMC catalog for product information other than what is detailed above.
  • *The product image is a representative image only.
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  1. 1
Part Number
PF2A721-03-27
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipSensor, Monitor Structure Output Method Analog Output Specification Pipe Port Type Plumbing Thread Type Plumbing Thread Nominal Number of Output Points Analog Voltage Output
(V) 		Analog Current Output
(mA) 		Power Supply Voltage
(V) 		Liquid contact parts material Display Protection Structure Unit Specifications Lead Wire Rated Pressure Range Rating Flow Range
(L/min) 		Sensor type Accessory Option Output Specification Accuracy
(%F.S.) 		Contact configuration CE compliant

SGD 775.13

1 Piece(s) 32 Day(s) [Integrated Type] Display IntegratedNPN Open Collector / Pulse-Female Thread[Rc (R)] Rc[3/8] 3/82--[12~24] 12 to 24 ±10%[Resin] PBT-IP65With unit conversion functionLead wire with M12 connector 3 m-50 kPa to 0.75 MPa20 to 200---NPN open collector 2 outputs±5% F.S.--

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  1. 1
 

Basic Information

Type Flow Switch Fluid Type Air / Nitrogen Gas Pressure Resistant(MPa) 1
Power Supply Type DC

Please check the type/dimensions/specifications of the part PF2A721-03-27 in the Digital Flow Switch For Air PF2A Series series.

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Specification/Dimensions

  • Output Method

    • NPN Open Collector
    • PNP Open Collector
    • Analog
    • Pulse

    Clear

  • Analog Output Specification

    • Voltage
    • Current

    Clear

  • Analog Voltage Output(V)

    • DC1-5V
      • 1-5V

    Clear

  • Sensor type

    • PF2A510／550
    • PF2A510／550／511／521／551-□-1
    • PF2A511/521/551
    • PF2A511／521／551

    Clear

  • Accessory

    • Power supply output cable (2 m)

    Clear

  • Option

    • Connector (e-con) 1 pc.
    • Connector for sensor connection (4 pcs.)
    • Front protective cover + panel mount / connector for sensor connection (4 pcs.)
    • Panel mount / Connector for sensor connection (4 pcs.)
    • Front protective cover + Panel mount
    • None
    • Panel mount

    Clear

  • Contact configuration

    • 1ab

    Clear

  • CE compliant

    • Available

    Clear

  • type

    • PF2A20
    • PF2A3
    • PF2A310
    • PF2A5
    • PF2A521
    • PF2A551
    • PF2A7
    • PF2A710
    • PF2A711
    • PF2A721
    • PF2A750
    • PF2A751

    Clear

  • Sensor, Monitor Structure

    • Integrated Type
      • Display Integrated
    • Separate Type, Connector Connection
      • Remote type monitor unit
      • Separate Type, Connector Joint
      • Separated sensor

    Clear

  • Pipe Port Type

    • Female Thread

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  • Plumbing Thread Type

    • Rc (R)
      • Rc
    • G
      • G
    • NPT
      • NPT

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  • Plumbing Thread Nominal

    • 1/8
      • 1/8
    • 1/4
      • 1/4
    • 3/8
      • 3/8
    • 1/2
      • 1/2

    Clear

  • Number of Output Points

    • 1
    • 2
    • 4

    Clear

  • Power Supply Voltage(V)

    • 12~24
      • 12 to 24 ±10%
    • 24
      • 24±10%

    Clear

  • Liquid contact parts material

    • Resin
      • PBT

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  • Unit Specifications

    • SI unit fixed
    • With unit conversion function

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  • Lead Wire

    • Lead wire with M12 connector 3 m
    • Without lead wire

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  • Rated Pressure Range

    • -50 kPa to 0.5 MPa
    • -50 kPa to 0.75 MPa

    Clear

  • Rating Flow Range(L/min)

    • 0.5 to 52.5
    • 0.5 to 525.0
    • 1 to 10
    • 5 to 50
    • 5.0 to 525.0
    • 10 to 100
    • 20 to 200
    • 50 to 500

    Clear

  • Output Specification

    • Monitor output + analog output (1 to 5 V)
    • Output for monitor unit + analog output (1 to 5 V)
    • NPN open collector 2 outputs
    • PNP open collector 2 outputs
    • NPN open collector 4 outputs
    • PNP open collector 4 outputs
    • Monitor output + analog output (4 to 20 mA)
    • Output for monitor unit + analog output (4 to 20 mA)
    • Output for monitor

    Clear

  • Accuracy(%F.S.)

    • ±5
    • ±5% F.S.
    • ± 5

    Clear

  • CAD

    • 2D
    • 3D

    Clear

Days to Ship

    • All
    • 32 Day(s) or Less

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Specify Alterations

Similar Part Numbers

Part Number
PF2A200-A4C
PF2A200-B
PF2A200-B4C
PF2A721-03-27-M
PF2A721-03-27N
PF2A721-03-27N-M
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipSensor, Monitor Structure Output Method Analog Output Specification Pipe Port Type Plumbing Thread Type Plumbing Thread Nominal Number of Output Points Analog Voltage Output
(V) 		Analog Current Output
(mA) 		Power Supply Voltage
(V) 		Liquid contact parts material Display Protection Structure Unit Specifications Lead Wire Rated Pressure Range Rating Flow Range
(L/min) 		Sensor type Accessory Option Output Specification Accuracy
(%F.S.) 		Contact configuration CE compliant

SGD 491.17

1 Piece(s) 32 Day(s) [Separate Type, Connector Connection] Remote type monitor unitNPN Open Collector / Pulse----4--[24] 24±10%-DigitalIP40With unit conversion function--0.5 to 525.0PF2A510／550／511／521／551-□-1Power supply output cable (2 m)Panel mount / Connector for sensor connection (4 pcs.)NPN open collector 4 outputs±5--

SGD 478.33

1 Piece(s) 32 Day(s) [Separate Type, Connector Connection] Remote type monitor unitNPN Open Collector / Pulse----4--[24] 24±10%-DigitalIP40With unit conversion function--0.5 to 525.0PF2A510／550／511／521／551-□-1Power supply output cable (2 m)Front protective cover + Panel mountNPN open collector 4 outputs±5--

SGD 497.47

1 Piece(s) 32 Day(s) [Separate Type, Connector Connection] Remote type monitor unitNPN Open Collector / Pulse----4--[24] 24±10%-DigitalIP40With unit conversion function--0.5 to 525.0PF2A510／550／511／521／551-□-1Power supply output cable (2 m)Front protective cover + panel mount / connector for sensor connection (4 pcs.)NPN open collector 4 outputs±5--

-

1 Piece(s) Quote [Integrated Type] Display IntegratedNPN Open Collector / Pulse-Female Thread[Rc (R)] Rc[3/8] 3/82--[12~24] 12 to 24 ±10%[Resin] PBT-IP65SI unit fixedLead wire with M12 connector 3 m-50 kPa to 0.75 MPa20 to 200---NPN open collector 2 outputs±5% F.S.--

SGD 738.50

1 Piece(s) 32 Day(s) [Integrated Type] Display IntegratedNPN Open Collector / Pulse-Female Thread[Rc (R)] Rc[3/8] 3/82--[12~24] 12 to 24 ±10%[Resin] PBT-IP65With unit conversion functionWithout lead wire-50 kPa to 0.75 MPa20 to 200---NPN open collector 2 outputs±5--

SGD 738.50

1 Piece(s) 32 Day(s) [Integrated Type] Display IntegratedNPN Open Collector / Pulse-Female Thread[Rc (R)] Rc[3/8] 3/82--[12~24] 12 to 24 ±10%[Resin] PBT-IP65SI unit fixedWithout lead wire-50 kPa to 0.75 MPa20 to 200---NPN open collector 2 outputs±5--

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