SMC Corporation of America
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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

PF3W is a digital flow sensor that constantly monitors water or coolant flow.  PF3W refreshes the design and operating performance of the legacy PF2W model.  This is the remote version of PF3W7, with a display.  One or two analog outputs are available, depending on whether the optional temperature sensor is selected.  Additional options include a mounting bracket, flow adjustment valve and

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3-color display Digital Flow Switch for Water Series PF3W RoHS How to Order Remote sensor unit Output specification/Temperature sensor Remote sensor unit/Unit printed on label Symbol Temperature oC Symbol OUT1 Flow rate OUT2 Temperature Temperature sensor 1 2 1T Instantaneous flow rate L/min L/min (gal/min) For how to order of remote monitor unit, refer to page 18. Nil Analog 1 to 5 V

of rotations PF3W704S/504S PF3W720S/520S PF3W740S/540S 6 56.5 22 63.6 (Max. 68.6) 104 50 70.2 34 58.5 18 13.6 2.7 depth 10 19 6 60.5 22 63.6 (Max. 68.6) 112 54 74.2 34 62.5 18 13.6 2.7 depth 10 19 7 78.0 30 75.25 (Max. 81) 142 71 94.5 44 79.0 28 16.8 2.7 depth 10 28 8 Series PF3W Dimensions PF3W704S/720S/740S-;-;T Integrated display: With temperature sensor and flow adjustment valve PF3W504S

) Basic type and flow adjustment valve and temperature sensor Symbol A AA D K S Model PF3W504S--T 115 50 81.2 69.5 67.5 PF3W520S--T 123 54 85.2 73.5 71.5 PF3W540S--T 153 71 105.5 90 89 -45No.PF-OMN0010-J PF3W511-U25/PF3W521-U30 (Vinyl chloride piping) Piping port A B D E F J K L N P Q 25 A 154 46 77 57.6 23 77 63 28 18 3.5 depth 14 32 32 A 146 56 91 71.6 28.5 73 60.5 25 27.5 3.5 depth 14

Rated Flow Range: 04 (0.5 to 4 L/min), Flow Adjustment Valve: S (w/Flow Adjustment Valve), Thread: N (NPT), Port Size: 03 (3/8), Output Specification/Temperature Sensor: 1T (Out 1 Flow Rate: Analog 1 to 5 V; Out 2 Temperature: Analog 1 to 5 V; Temperature Sensor: w/Temperature Sensor), Lead Wire: N (w/o Lead Wire and M8 Connector), Unit Specification: Instantaneous Flow: L/min, Temperature

Rated Flow Range: 04 (0.5 to 4L/min), Flow Adjustment Valve: S (Flow Adjustment Valve), Thread: N (NPT), Port Size: 03 (3/8), Output Specification: 1 (OUT1: Analog 1 to 5V), Temperature Sensor: T (OUT2: Analog 1 to 5V, w/Temperature Sensor), Lead Wire: N (w/o Lead Wire w/M8 Connector), Units on Label: G (Instantaneous Flow Rate: Gal/min; Accumulated Flow: Gal; Temp: °C), Bracket: R (Bracket

Rated Flow Range: 04 (0.5 to 4L/min), Flow Adjustment Valve: S (Flow Adjustment Valve), Thread: N (NPT), Port Size: 03 (3/8), Output Specification: 1 (OUT1: Analog 1 to 5V), Temperature Sensor: T (OUT2: Analog 1 to 5V, w/Temperature Sensor), Lead Wire: N (w/o Lead Wire w/M8 Connector), Units on Label: G (Instantaneous Flow Rate: Gal/min; Accumulated Flow: Gal; Temp: °C)

Rated Flow Range: 04 (0.5 to 4L/min), Flow Adjustment Valve: S (Flow Adjustment Valve), Thread: N (NPT), Port Size: 03 (3/8), Output Specification: 1 (OUT1: Analog 1 to 5V), Temperature Sensor: T (OUT2: Analog 1 to 5V, w/Temperature Sensor), Lead Wire: N (w/o Lead Wire w/M8 Connector), Units on Label: Instantaneous Flow Rate: L/min; Accumulated Flow: L; Temp: °C, Bracket: R (Bracket), Calibration

Rated Flow Range: 0.5 to 4 L/min, Flow Adjustment Valve: w/Flow Adjustment Valve, Thread: NPT, Port Size: 3/8, Output Specification/Temperature Sensor: Out 1 Flow Rate: Analog 1 to 5 V; Out 2 Temperature: Analog 1 to 5 V; Temperature Sensor: w/Temperature Sensor, Lead Wire: w/o Lead Wire and M8 Connector, Unit Specification: Instantaneous Flow: L/min, Temperature: °C, Bracket: w/Bracket,

Rated Flow Range: 0.5 to 4L/min, Flow Adjustment Valve: Flow Adjustment Valve, Thread: NPT, Port Size: 3/8, Output Specification: OUT1: Analog 1 to 5V, Temperature Sensor: OUT2: Analog 1 to 5V, w/Temperature Sensor, Lead Wire: w/o Lead Wire w/M8 Connector, Units on Label: Instantaneous Flow Rate: Gal/min; Accumulated Flow: Gal; Temp: °C, Bracket: Bracket, Calibration Certificate: -, Made

Rated Flow Range: 0.5 to 4L/min, Flow Adjustment Valve: Flow Adjustment Valve, Thread: NPT, Port Size: 3/8, Output Specification: OUT1: Analog 1 to 5V, Temperature Sensor: OUT2: Analog 1 to 5V, w/Temperature Sensor, Lead Wire: w/o Lead Wire w/M8 Connector, Units on Label: Instantaneous Flow Rate: Gal/min; Accumulated Flow: Gal; Temp: °C, Bracket: -, Calibration Certificate: -, Made to Order

Rated Flow Range: 0.5 to 4L/min, Flow Adjustment Valve: Flow Adjustment Valve, Thread: NPT, Port Size: 3/8, Output Specification: OUT1: Analog 1 to 5V, Temperature Sensor: OUT2: Analog 1 to 5V, w/Temperature Sensor, Lead Wire: w/o Lead Wire w/M8 Connector, Units on Label: Instantaneous Flow Rate: L/min; Accumulated Flow: L; Temp: °C, Bracket: Bracket, Calibration Certificate: Calibration