Product Description

SMC PF3W740-04-F-M

The SMC PF3W740-04-F-M is a high-precision digital flow switch designed for monitoring water and water-soluble coolants. It features a clear, 3-color, 2-screen integrated display that allows for simultaneous monitoring of instantaneous flow and set values. This model is suitable for a flow rate range of 4 to 40 L/min and utilizes Rc1/2 port connections. It offers versatile control capabilities with two NPN open collector outputs and a selectable analog output (1-5V or 4-20mA). The PF3W740-04-F-M is ideal for applications requiring accurate flow measurement and control, boasting a robust IP65 enclosure and easy-to-read display for various industrial environments.

Technical Specifications:

Applicable Fluid: Water, Ethylene glycol aqueous solution
Fluid Temperature Range: 0 to 90°C (No freezing)
Operating Pressure Range: 0 to 1.0 MPa
Rated Flow Range: 4 to 40 L/min
Port Size: Rc1/2
Display: Integrated 3-color, 2-screen display (4-digit 7-segment LED)
Switch Output: 2 NPN open collector outputs
Analog Output: 1 to 5 V or 4 to 20 mA (selectable)
Power Supply Voltage: 12 to 24 VDC ±10%
Current Consumption: 55 mA or less (at 24 VDC, without load)
Enclosure Rating: IP65
Unit Display: L/min (Flow rate – fixed SI unit)
Wetted Parts Material: Body: PPS; O-ring: FKM; Sensor Body: Stainless Steel 304; Fitting: C3604BD (Brass)
Repeatability (Switch output): ±1% F.S.
Response Time (Switch output): Selectable from 0.5s to 60s