NSV Vibrating Level Switch

Brand: KOBOLD Instruments, Inc.

The level monitor model NSV has decisive advantages, especially with bulk goods with low bulk density. Vibrations are induced in a stainless steel fork by a piezoelectric crystal. If the medium comes into contact with the vibrating fork, this vibration is damped.

This damping is detected in a pluggable evaluation module and transformed into a potential-free limit contact.

In addition to the standard version NSV-8200, the devices can also be provided for vertical installation with an extended neck pipe (NSV-8201).

The maximum length of the neck pipe is 3,000 mm. The plug-in evaluation module can be changed easily so that the devices are really easy to maintain.

Operation can be set for maximum or minimum security by means of a selector switch (A and B). The respective switching status of the relay is indicated by a LED.


Ambient Temperature Range

  • -20° to 60° C (-4° to 140° F)


  • Animal Feed, Milk Powder, Flour, Insulation
  • Cement
  • Flour, Food & Sugar
  • Grain
  • Plastic Granulate

Approvals & Certifications

  • ATEX
  • Ex

BSP Connection

  • G 1-1/2"

Connection Material

  • 303 Stainless Steel

Electrical Connectors

  • Cable Gland

Enclosure / Body Material

  • Polycarbonate

Environmental Protection

  • IP65

Input Power

  • Maximum


  • 118" (3,000 mm) - Maximum

Materials of Construction

  • 303 Stainless Steel - Fork Material

Maximum System Pressure

  • psi: 362.6 (kPa: 2500, bar: 25) at 20° C (68° F)

Output Format

  • Relay Output

Process Temperature

  • -20° to 80° C (-4° to 176° F)

Relay Output

  • 250 Vac, 1 A


  • 350° Turnable

Supply Voltage

  • 18-36 Vdc
  • 24-230 Vac, 50 & 60 Hz

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