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Liquid Flow Switches

FST-200 Series

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^$ 160.00 FST-211-SPST

•	High Reliability — No Moving Parts
•	Very Low Flow Detection–Down to 0.04 FPS Liquids
•	Use in 1 /8 " through 12" Pipe or Tubing
•	SPST Relay Standard
•	Excellent for Pump and Valve Monitoring of Critical Flows
•	Sensor Must Be Kept Wet In Pipe

View related products - Variable Area Flowmeters and Rotameters

OMEGA ® FST-200 Series flow switches use thermal dispersion technology to create a very accurate and economical method of sensing flow. Monitor fluids from 0.4 to 1.2 specific gravity, 1 to 300 cp, and pulsating flow from 10 to 100 pulses per minute. The sensors incorporate two temperature probes, one of which is heated. The flow of liquid reduces the temperature of the heated probe, decreasing the temperature differential with the non-heated probe. The probe must be wet at all times in application. OMEGA’s LVCN Series of controllers can easily be interfaced to perform a variety of control functions (requires additional power supply).

Please download PDF below for complete product specifications

To Order (Specify Model Number)

Part Number	Availability	Price	Description	RoHS	Qty.

FST-211-SPST		$160.00	Thermal dispersion flow switch, 1/2" to 1 1/2" pipe size with 1 AMP relay		Qty
FST-212-SPST		$260.00	Thermal dispersion flow switch, 1/2" to 1 1/2" pipe size with 1 AMP relay		Qty
FST-221-SPST		$170.00	Thermal dispersion flow switch, 2" to 12" pipe size with 1 AMP relay		Qty
FST-222-SPST		$270.00	Thermal dispersion flow switch, 2" to 12" pipe size with 1 AMP relay		Qty

Flow Switch Fittings for use with 76mm (3") Sensor Only - Used for Pulsating Flow

FT-51		$40.00	Flow switch fittings		Qty
FT-52	1 Week	$80.00	Flow switch fittings		Qty

† All dollar amounts on this site are shown in US currency.

Note: Two extended cable lengths available for 7.62 m (25') add “-25” or for 15.24 m (50') add “-50”. Add $1.00 per foot for PP/Ryton. Add $2.00 per foot for PVDF. Sizes above 1 /2 " fit into 3 /4" NPT fitting adaptor. Comes with complete operator’s manual.
(OPTIONS SHOWN IN THIS "NOTE" ABOVE ARE PRICED IN US$)
Ordering Example: (1) FST-211-SPST Thermal dispersion flow switch with 1 AMP relay = $160

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Keywords:Air/Liquid Flow Switch and Flow Switch with Compact Relay Controller