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Thermal Flow Switches

FSW-420 & FSW-430 Series

FSW-420 & FSW-430 Series:Thermal Flow Switches

Thermal Flow Switches

£302.00 FSW-433

CE
  • Automatic Scaling and Set-Point
  • No Moving Parts
  • Pushbutton Re-Scaling if Needed
  • Easy to Install
  • Normally Open Standard, Normally Closed Available
Variable Area Flowmeters, Rotameters & Switches - View related products

Description

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 it’s 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
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
Protection Class: IP67
Housing: Anodised aluminium
Sensor Material: 303 stainless steel
Tube Housing (FSW-430 series): Polyacetal
Mounting (FSW-420 Series): ½ NPT
Connection Tube OD:
    FSW-431: 6 mm
    FSW-432: 8 mm
    FSW-433: 12 mm
Electrical Connection: M12 male socket 4-pin, 2 m 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)

Place Order(Specify Model Number)
Part Number/Desc.
Availability
Price
Description
Qty
Normally Open Valves
FSW-421
Star
Availability: 1 week  
£218.00   
flow switch, 12.5 mm insertion length
 
FSW-422
Star
Availability:  
Consult Sales  
flow switch 50.5 mm insertion length
 
 
FSW-431
Star
Availability:  
£302.00   
In-line flow switch 6 mm tube
 
 
FSW-432
Star
Availability:  
£302.00   
In-line flow switch 8 mm tube
 
 
FSW-433
Star
Availability: 1 week  
£302.00   
In-line flow switch 12 mm tube
 
Normally Closed Valves
FSW-421-NC
Star
Availability:  
£218.00   
flow switch, 12.5 mm insertion length, normally closed
 
 
FSW-422-NC
Star
Availability:  
Consult Sales  
flow switch, 50.5 mm insertion length, normally closed
 
 
FSW-431-NC
Star
Availability:  
Consult Sales  
In-line flow switch 6 mm tube, normally closed
 
 
FSW-432-NC
Star
Availability:  
Consult Sales  
In-line flow switch 8 mm tube, normally closed
 
 
FSW-433-NC
Star
Availability:  
Consult Sales  
In-line flow switch 12 mm tube, normally closed
 
 
Accessories
FSW-400-CABLE-2M
Star
Availability: 1 week  
£16.75   
FSW-400 Series connection cable 2m
 
FSW-400-CABLE-4M
Star
Availability:  
£23.50   
FSW-400 Series connection cable 4m
 
 
Note: Comes complete with operator's manual and pre-wired 2m cable.
Ordering Example: (1) FSW-431 Flow switch and mating connector, 6 mm tube, £302.00