Thermal Flow Switches
Description
The easy to install, FSW-420/30 series of thermal flow switches has no moving parts and monitors your relative flow rate for applications where the actual flow rate is not important. This CE compliant product features automatic scaling and set-point with pushbutton re-scaling. Perfect for industries involving flow and temperature control or alarm and applications involving automation and process cooling.
Specs
* Media: Liquids * Low Flow Set Point: Pre-set to 50% (field adjustable) * Operating Temperature: -20 to 80°C (-4 to 176°F) * Response Time: 25 seconds (typical) * Repeatability: 1% * Hysteresis: 10% of set-point value typical * Range: FSW-420 Series: 0 to 150 cm/sec FSW-431: 0 to 2.25 L/min FSW-432: 0 to 5.1 L/min FSW-433: 0 to 14.1 L/min * Operating Pressure: 30 Bar (450 psi) * Protection Class: NEMA 6 (IP67) * Housing: Anodized aluminum * Sensor Material: 303 stainless steel * Tube Housing (FSW-430 series): Polyacetal * Mounting (FSW-420 Series): ½ NPT * Connection Tube OD: FSW-431: 6 mm (0.24") FSW-432: 8 mm (0.31") FSW-433: 12 mm (0.47") * Electrical Connection: M12 male socket 4-pin, 2 m (7') cable with M12 connector and pigtail leads * Supply Voltage: 20 to 30 Vdc (short circuit protected) * Switching Current: <200 mA * Power Consumption: 6 W max * Initial Operation: 15 seconds