NBA-2/NBE-2 Bypass Level Switch

Brand: KOBOLD Instruments, Inc.

KOBOLD bypass level switches of model NBA/NBE are used when, for example, level monitoring in the bypass is needed due to lack of space (with agitators) or at high temperatures.

The instrument comprises a metal housing with internally mounted magnetic level switch and operates on the principle of communicating tubes.

As soon as the housing of the bypass level switch is filled about half way with liquid, the float moves to the top and operates with the internal ring magnet a changeover contact fitted in the measuring tube.

Solenoid valves, signal lamps or pumps are switched by the changeover contact by means of suitable electrical auxiliaries (relay, contactor relay).

Specifications

Ambient Temperature Range

  • -25° to 80° C (-13° to 176° F)

Applications

  • Safe Level Monitoring

Approvals & Certifications

  • CE

BSP Connection

  • G 3/8" Female - NBA
  • 1/2" BSPT Male - NBE

Cable Entry

  • M16 × 1.5

Cable Length

  • 0.016 to 0.03 feet (5 to 9 metres)

Connection Material

  • Aluminum
  • Plastic

Current

  • Maximum

Dimensions

  • 1.97" × 1.77" × 1.18" (50 × 45 × 30 mm), Aluminum - Electrical Connection Box (NBA)
  • Ø 3.15" (80 mm), Plastic - Electrical Connection Box (NBE)

Electrical Connectors

  • M16 × 1.5

Electrical Contacts

  • Changeover Contact

Electrical Rating

  • Maximum

Enclosure, Body Material

  • Aluminum
  • Stainless Steel

Environmental Protection

  • IP65

Hysteresis

  • 0.28" (7 mm)

Materials of Construction

  • 316Ti Stainless Steel - Measuring Tube & Float
  • Rhodium - Contact Material

Maximum System Pressure

  • psi: 145 (bar: 10, kPa: 1,000)

Output

  • Relay

Process Temperature

  • -40° to 90° C (-40° to 194° F)

Screw Material

  • PTFE - Drain Screw

Seat / Seal Material

  • NBR
  • PTFE

Switch Type

  • Single-Pole Change-Over Switch

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