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SP170 Series Thermal Dispersion Flow Switch

Brand: FineTek

Thermal dispersion flow switches measure the velocity of a liquid inside a pipe or channel. 

The switch’s probe contains two key components – a heating sensor and temperature sensor. 

The heating sensor is positioned closest to the flowing liquid and provides a consistent heat. 

The temperature sensor measures the temperature emitted from the heating sensor. 

When liquid is flowing, there is a temperature difference between the two sensors. 

The temperature difference has an inverse relationship with the flow velocity (fast flowing liquids will result in greater heat differences and vice versa). 

Since the device contains no moving parts, has no wear and tear and maintains a long lifespan.
Features
  • High sensitivity and accuracy
  • Suitable for corrosive and hazardous conditions
  • Able to be calibrated for liquids with different densities and impurities
  • Suitable for complex locations with easy installation
  • Customized probe lengths available
  • Three different output signals options

1 - 1 of 1 Part Numbers
SP170 SERIES
SP170 SERIES
  • Model - Explosion-Proof Model
  • Material - 304 Stainless Steel
  • Connection Size - 1/2" (15A)
  • Connection Type - PT
  • Output - SPDT, 3 A / 250 vac
  • Length - 1 Custom Length: Millimeters
1 - 1 of 1 Part Numbers

Specifications

Brand

Ambient Temperature Range

  • -20° to 80° C (-4° to 176° F)

Approvals & Certifications

  • CE
  • Ex NEPSI: GYJ12.1521x

BSP Connection

  • 1” BSP Male (25 A)
  • 1/2” BSP Male (15 A)
  • G 1/2” Male

Consumption

  • Power Consumption: 60 mA - Max.

Electrical Contacts

  • Normally Closed & Normally Open

Enclosure, Body Material

  • 304 Stainless Steel

Environmental Protection

  • Explosion-proof
  • IP67

Indication

  • Flow Velocity: Led Indication

Measuring Range

  • Oil: 3 to 300 cm/sec
  • Water: 1 to 150 cm/sec

Media

  • Oil
  • Water

NPT Connection

  • 1” NPT Male (25 A)
  • 1/2” NPT Male (15 A)

Operating Pressure

  • psi: 1,450 (kPa: 10,000, bar: 100) - Max.

Operating Temperature

  • -20° to 80° C (-4° to 176° F)

Operating Voltages

  • 19-30 Vdc

Output

  • 5 A at 250 Vac
  • Relay: 3 A at 250 Vac

PT/PF/PS (JIS) Connection

  • 1” PF Male (25 A)
  • 1” PT Male (25 A)
  • 1/2” PF Male (15 A)
  • 1/2” PT Male (25 A)

Sensor, Probe Style

  • Thermal, Calorimetric

Switch Type

  • SPDT

Update Time

  • Warm-Up Time: 15 seconds

Wetted Materials

  • 304 Stainless Steel
  • 316 Stainless Steel
  • 316L Stainless Steel

  • Cooling Pipes Flow Control
  • HVAC Systems
  • Hydro Electric Plants
  • Optics & Semi-Conductor Manufacturing Industry
  • Pharmaceutical
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