NEK Conductive Level Switch

Brand: KOBOLD Instruments, Inc.

The KOBOLD level switch of model NEK is a complete functional unit which is specially designed for monitoring conductive liquids under extreme conditions.

Due to the design without any moving or protruding parts, the switches are very suitable for monitoring critical media with, for example, solid content, negligible density or high viscosity.

The double-thread allows a variety of installations. The length of the shaft can be extended by attaching an additional protective tube. The instruments operate on the conductive principle of measurement.

The conductive medium touches both electrodes causing a negligible alternating current to flow; the output state changes.

Specifications

Applications

  • Chemical Tanks
  • Fresh Water Tanks
  • Mixing Vessels
  • Run-Dry Protection for Pumps

BSP Connection

  • 3/4" BSPT Male

Cable Length

  • 6.56 feet (2 metres)

Cable Material

  • PVC

Delay Time

  • 0.5 second - Dry / Wet & Wet / Dry Switch-in

Electrical Contacts

  • Changeover Contact

Electrical Protection

  • Short Circuit

Enclosure / Body Material

  • Polypropylene
  • PPS

Environmental Protection

  • IP68

Materials of Construction

  • 316Ti Stainless Steel - Electrodes

Maximum System Pressure

  • psi: 290 (kPa: 2,000, bar: 20) - PPS
  • psi: 87 (kPa: 600, bar: 6) - Polypropylene

NPT Connection

  • 3/4" NPT Male

Operating Temperature

  • -25° to 60° C (-13° to 140° F) at Polypropylene
  • -25° to 85° C (-13° to 185° F) at PPS

Output

  • Maximum

Power Requirement

  • Maximum

Resistance

  • 50 kiloohms - Sensitivity

Supply Voltage

  • < 20 mA
  • 18-29 Vdc

Switch Type

  • Changeover Switch
  • NPN or PNP

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