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Thermal Flow Switches

FSW-420 & FSW-430 Series   
1 year warranty CE
 
Thermal Flow Switches
FSW-420 & FSW-430 Series:Thermal Flow Switches
Click for larger image.
   
$450.00  FSW-433
Automatic Scaling and Set-Point
No Moving Parts
Pushbutton Re-Scaling if Needed
Easy to Install
Normally Open Standard, Normally Closed Available

View related products - Variable Area Flowmeters, Rotameters & Switches

Click to scroll below to order See Specs PDF Manuals View a printer friendly page

The FSW-420/30 Series monitors your relative flow rate for applications where the actual flow rate is not important. The FSW-420/30 series is easy to install and use. Just put it into the pipe and itís ready to go. The FSW-420/30 series sets your present flow-rate at 100% at power up. Relative flow rate is indicated by the 7 LED lights. When the flow rate drops to 50%, an alarm goes off. If you prefer, you can adjust the alarm point to fit your needs. A green output indicating LED is also included.

SPECIFICATIONS
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
Output: PNP normally open (closed with flow), optional normally closed (open with flow)


To Order (Specify Model Number)    
expand list What Other People Bought: When you see this icon, click on it to expand a list of products that other people have bought when they purchased this model.
 Part Number   Availability   Price   Description    Qty.
 Normally Open Valves
    FSW-421 In Stock   $325.00    Insertion flow switch, 12.5 mm (0.5") insertion length  
    FSW-431 In Stock   $450.00    In-line flow switch 6 mm (0.24") tube  
    FSW-432 In Stock   $450.00    In-line flow switch 8 mm (0.31") tube  
    FSW-433 In Stock   $450.00    In-line flow switch 12 mm (0.47") tube  
 Normally Closed Valves
    FSW-421-NC In Stock   $325.00    Insertion flow switch, 12.5 mm (0.5") insertion length, normally closed  
    FSW-422-NC    Consult sales   Insertion flow switch, extended length, normally closed  
 Accessories
    FSW-400-CABLE-2M    Consult sales   FSW-400 Series connection cable 2m (7')  
    FSW-400-CABLE-4M In Stock   $35.00    FSW-400 Series connection cable 4m (13')  
Click to expand/minimize a list of what others bought with the 70A-1  70A-1 In Stock   $25.00    audible alarm  
Click to expand/minimize a list of what others bought with the PSU-93  PSU-93 In Stock   $40.00    power supply  
All dollar amounts on this site are shown in US currency.

 Note: Comes complete with operator's manual and pre-wired 2m(6/5') cable.

Standard valves are Normally Open. For optional Normally Closed valves, add "-NC" to model number, no additional charge.


 Ordering Example: (1) FSW-431 Flow switch and mating connector, 6 mm (0.24"), $450.00,  plus (1) PSU-93 Power supply , $40.00,  plus (1) 70A-1 Audible alarm, $25.00, $450.00 + 40.00 + 25.00 = $515.00

   
Keywords:Thermal Flow Switches, thermal flow measurement

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