SWK Variable Area Flowmeter

Brand: KOBOLD Instruments, Inc.

KOBOLD flow meters and monitors of model SWK operate on the known suspended float principle, however without using the generally known conical measuring tube.

An orifice float moves in the direction of flow against the force of a spring in a cylindrical guide tube. The float contains a permanent magnet which operates a floating sealed contact (reed contact) mounted on the outside. The instruments are small and can be mounted in any orientation.

Model SWK flow switches are ideally suited for monitoring low flows.

Specifications

Applications

  • Cooling Circuits
  • Glass-Melting Tanks
  • Induction Furnaces
  • Infusion Pumps
  • Lubricant Circuits
  • Machine Tools
  • Paper Machines
  • Welding Machines

Approvals & Certifications

  • ATEX - Zone 1

BSP Connection

  • G 1/2" Female

Electrical Connectors

  • 1 m PVC Cable
  • Changeover Contact

Electrical Contacts

  • Normally Open

Electrical Rating

  • Changeover Contact: 100 Vac/dc, 0.5 A, 5 W/VA, Maximum
  • Switch Contact: Bistable Reed Contact 230 Vac/dc, 3 A, 60 W/VA, Maximum

Enclosure / Body Material

  • 304 Stainless Steel
  • Brass ms 58, Nickel-Plated
  • PVC

Environmental Protection

  • IP54
  • IP68

Hysteresis

  • 3 mm on Scale - Switching Hysterisis

Materials of Construction

  • 304L Stainless Steel - Float Material
  • Brass ms 58 - Float Material
  • Ceramic - Magnets
  • PVC - Float Material

Maximum System Pressure

  • psi: 3,626 (kPa: 25,000, bar: 250)

Mounting Position

  • Any Orientation

Repeatability

  • ± 4 % of Full Scale - Indicator
  • ≤ ± 2.5 % of Full Scale - Contact

Ring Material

  • 304 Stainless Steel - Butt Rings
  • Brass ms 58- Butt Rings
  • PVC - Butt Rings

Spring Material

  • 301 Stainless Steel - Compression Spring

Switch Point Range

  • Water: 0.05 to 24 L/minute

Temperature Range

  • Maximum

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