SMC PF2W720-04-27-M

Description

SMC PF2W720-04-27-M

Digital Flow Switch For Water PF2W Series (PF2W720-04-27-M)

Product Description

Integrated and remote type flow switch.
[Features]
· Has switch output, accumulated pulse output and analog output.
· Can switch between accumulated flow rate and instantaneous flow rate.
· Water-resistant construction conforming to IP65.

Configured Specifications

    • Type [Flow Switches] Flow Switch for Water
    • Fluid Type Water
    • Flow Rate Range (Max. Value) 10~Less than 50
    • Sensor, Monitor Structure [Integrated Type] Display Integrated
    • Output Method NPN Open Collector / Pulse
    • Analog Output Specification
    • Pipe Port Type Female Thread
    • Plumbing Thread Type [Rc (R)] Rc
    • Plumbing Thread Nominal [1/2] 1/2
    • Pressure Resistant 1.5
    • Number of Input Points
    • Number of Output Points 2
    • Analog Voltage Output 
    • Analog Current Output
    • Power Supply Type DC
    • Power Supply Voltage [12~24] 12 to 24 ±10%
    • Liquid contact parts material [Resin] Resin
    • Acquired Standards
    • Protection Structure IP65
    • Unit Specifications With unit conversion function
    • Lead Wire Lead wire with M12 connector 3 m
    • Rating Flow Range 2 to 16
    • Applicable Sensors
    • Option
    • Output Specification NPN open collector 2 outputs
    • Accuracy ±5% F.S.
    • Connection
    • Operating Fluid Temperature

PF2W7 Specifications

Model PF2W704 PF2W720 PF2W740 PF2W711
Measured fluid Water
Flow rate measurement range 0.35 to 4.5 L/min 1.7 to 17.0 L/min 3.5 to 45 L/min 7 to 110 L/min
Set flow rate range 0.35 to 4.5 L/min 1.7 to 17.0 L/min 3.5 to 45 L/min 7 to 110 L/min
Rated flow range 0.5 to 4 L/min 2 to 16 L/min 5 to 40 L/min 10 to 100 L/min
Minimum set unit 0.05 L/min 0.1 L/min 0.5 L/min 1 L/min
Accumulated pulse flow rate exchange value (pulse width: 50 ms) 0.05 L/pulse 0.1 L/pulse 0.5 L/pulse 1 L/pulse
Working fluid temperature 0 to 50°C
Accuracy ±5% F.S. ±3% F.S.
Repeatability ±3% F.S. ±2% F.S.
Temperature characteristics Note 1) ±5% F.S. (0 to 50°C, 25°C reference)
Current consumption (without load) 70 mA or less 80 mA or less
Weight Note 2) 460 g 520 g 700 g 1,150 g
Port size (Rc, NPT, G) 3/8 3/8, 1/2 1/2, 3/4 3/4, 1
Detection type Karman vortex type
Indicator light 3-digit, 7-segment LED
Display unitsNote 3) Instantaneous flow rate L/min, gal (US) / min
Accumulated flow rate L, gal (US)
Operating pressure range 0 to 1 MPa
Pressure resistance 1.5 MPa
Accumulated flow rate rangeNote 4) 0 to 999,999 L
Ambient temperature range During operation: 0 to 50°C, During storage: -25 to 85°C (No freezing or condensation)
Output specificationsNote 5) Switch output NPN 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 output NPN or PNP open collector (same as switch output)
Status LEDs Light up when output is turned ON, OUT1: green, OUT2: red
Response time 1 s or less
Hysteresis Hysteresis mode: Variable (can be set from 0), Window comparator modeNote 6): 3-digit fixed
Power supply voltage 12 to 24 V AC ±10%
Environmental resistance Enclosure IP65
Operating temperature range 0 to 50°C
Withstand Voltage 1,000 V AC for 1 minute between terminals and housing
Insulation Resistance 50 MΩ or more (500 V DC measured via megohmmeter) between terminals and housing
Noise resistance 1,000 V p-p, pulse width 1 μs, rise time 1 ns

Note 1) PF2W711 is 15 to 35°C, 25°C reference is ±3% F.S. or less.
Note 2) Does not include lead wire.
Note 3) For digital flow switch unit switching function (Fixed SI unit [L/min or L] will be set for switch types without the unit switching function.)
Note 4) Accumulated flow rate is reset when the power supply is turned OFF.
Note 5) Switch output and accumulated pulse output can be selected during initial setting.
Note 6) Window comparator mode: Since hysteresis (H) will reach 3 digits, keep P_1 and P_2 or n_1 and n_2 separated by 7 digits or more. (In the case of OUT2, n_1 and n_2 will become n_3 and n_4, P_1 and P_2 will become P_3 and P_4.)
Note 7) All flow switches conform to the CE marking.

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