Kobold SWK Variable Area Flow Meter Low Volume

Description

Kobold SWK Variable Area Flow Meter Low Volume 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.

Kobold SWK Applications

• Lubricant circuits
• Paper-making machines
• Machine tools
• Glass-melting tanks
• Cooling circuits
• Welding machines
• Induction furnaces
• Pumps

SWK-2 Variable Area Flow Switch

• Measuring / switching range: 0.05 – 0.1 … 13 – 24 l/min water
• Connection: G ½ female thread
• Material: brass, stainless steel
• pmax: 250 bar
• tmax: 100°C
• Accuracy: ±4 % of full scale
• Reed contact, pointer indicator

• Measuring / switching range: 0.2 – 0.8 …13 – 24 l/min water
• Connection: G ½ female thread
• Material: PVC
• pmax: 6 bar
• tmax: 60°C
• Accuracy: ±4 % of full scale
• Reed contact

Specifications

• Housing:
  • SWK-x1..: brass nickel plated, Ms 58
  • SWK-x2..: stainless steel, 1.4301
  • SWK-13..: PVC
• Connections: G ½ female
• Float:
  • SWK-x1..: brass, Ms 58
  • SWK-x2..: stainless steel, 1.4301
  • SWK-13..: PVC
• Magnets: ceramic
• Compression spring: stainless steel 1.4310
• Gaskets: none
• Butt rings:
  • SWK-x1..: brass, Ms 58
  • SWK-x2..: stainless steel, 1.4301
  • SWK-13..: PVC
• Max. temperature:
  • SWK-x1..,
  • SWK-x2: 100°C
  • SWK-13..: 60°C
• Max. pressure:
  • SWK-x1..,
  • SWK-x2: 250 bar
  • SWK-13..: 6 bar
• Installation position: any position
  • Switch contact: bistable reed contact
  • N/O contact with increasing flow rate
  • max. 230 VAC/DC, max. 3 A
  • max. 60 W/VA
• Changeover contact: (SWK-xxxxU)
  • max. 100 VAC/DC, max. 0.5 A,
  • max. 5W/VA
• Electr. connection: 1 m PVC cable
• Switching hysteresis: 3 mm on scale (mean value)
• Repeatability:
  ? 2.5% (contact)
  ± 4% of full scale (indicator)
• Protection: IP 68 (contact), IP54 (indicator)
• Ex range: ATEX-Zone 1 as »simple apparatus«

Download Datasheet: Kobold SWK Variable Area Switch Low Volume

Reference : www.kobold.com

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