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Thermal Dispersion Flow Switches for Use With Gases

$229.69

Item# FST-321-SPST

 This item is available for quick shipping
Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $229.69
10-24 $218.21
25-49 $213.61
50-99 $204.42
100-199 $199.83
200+ $195.24

In stock

Lead Time ( If not in Stock): 3 weeks

Thermal Dispersion Flow Switches for Use With Gases FST-321-SPST FST-321-SPST
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  • Measure Mass Flow of Gases
  • High Reliability, No Moving Parts
  • Effectively Monitor Critical Gas Flows
  • May Be Used in Small Piping or Large Ducts
  • 1 AMP SPST Relay Standard

Product info

Media Type
Gas
Velocity Range
1 to 90 FPS
Accuracy
±5%
Max Operating Pressure
150 psi
Max Process Temperature
60 °C (140 °F)
Process Connection Type
NPT Male
Process Connection Size
3/4" to 1 1/2"
Wetted Materials
PP, PVDF
Switch Rating and Type
1 A SPST Relay
Supply Power
12 to 36 Vdc
Wire Length
10'
Features
Switch Type Selectable, NO or NC

Product Specs

  • Maximum Pressure 150
  • Switch Operation Selectable NO or NC states

OMEGA’s FST-320 Series thermal dispersion flow switches, especially designed for use with gases, sense changes in the heat transfer characteristics of the gases. Flow velocities from 1 to 90 fps are effectively monitored. The flow switch incorporates a standard SPST Relay switch output for control flexibility. The OMEGA® LVCN-131 and LVCN-141 controllers can easily be interfaced to perform a variety of control functions. The FST-320 family of sensors can be easily installed in line sizes ranging from 3/4 to 12'.

SPECIFICATIONS
Range: 1 to 90 fps
Accuracy: ±5% of setpoint at constant temperature and flowrate
Response time: 10 seconds after initial 30 sec warm up
Setpoint Drift with Fluid Temperature: 0.5% per °C
Voltage Input: 12-36 Vdc @ 60 mA
Contact Output: 1 A SPST Relay, selectable NO or NC states
Fluid Temperature: 0 to 60°C (32 to 140°F)
Max Fluid Pressure: 150 psi @ 25°C (77°F) derated @ 1.667 psi per °C above 25°C (77°F)
Wetted Materials: PP with PVDF
Cable Length: 3 m (10 ft)
Max Cable Length: 305 m (1000 ft)
Dimensions:76.2 or 114.3 x 26.7 mm dia.(3.0 or 4.5 x 1.05')

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