Stafford, Texas

NIVOMAG Series, Magnetic Float Level Switch

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NIVOMAG Series, Magnetic Float Level Switch

NIVOMAG MK-200 Series magnetic float level switches are used for point level detection and level control of liquids in all types of vessels. The NIVOMAG uses a non contact coupling system, created by the permanent magnet of the float placed in the tank that can activate the microswitch situated in the housing mounted on the outside. The great variety of both the top and side mounted versions makes it easy to install the switch in any tank at any location.

Hysteresis Configurations
For the simplest level switching you can select models with fixed hysteresis, while for level control applications we offer NIVOMAG switches with adjustable hysteresis. Models with rubber or silicon sleeves can be applied for contaminated liquids. You can fit the Nivomag switch with an MMK type tester, to check the switching function even when the liquid levels aren’t changing.

  • Magnetic coupling between the switch and the float
  • Operation without external power supply
  • Side or top mounted versions
  • Underwater housing
  • Fixed or variable hysteresis
  • Max. 482°F medium temperature Explosion proof version
  • SIL1

Description

  • Operation without power supply
  • Micro-switch separated from the process
  • All wetted parts stainless steel
  • Side or top mounting
  • Fixed or adjustable switch differential
  • Submersible versions
  • Various process connections
  • Operational check via optional tester
  • Flame-proof variants available
  • SIL1 approval
  • 5 year warranty

Applications

  • Liquids with minimum 0.7 specific gravity
  • Fail-safe and control level switches in closed tanks
  • Ballast tanks of ships
  • Chemical industry
  • Food and beverage
  • Power plants
  • Oil industry
  • Water industry, water tanks, feedwater tanks
  • Overflow protection
  • Level controls
  • Supplementary fail safe switch if combined with other devices
  • Fuel tanks

MKK Tester and Counter Flange

Am MMK tester device can be mounted between the housing and the counter flange. The tester is used to check the correct operation of switch without dismantling or true level change. The counter flange is to be welded to the tank. Screws are connected to the housing.

Top and Side Mounting Options

Side The hysteresis can be adjusted by positioning the rings on the rod. By positioning the counterweight the different rod lengths can be compensated.

Top The hysteresis can be adjusted between the maximum and minimum values of the range by changing the position of the pins.

NIVOMAG Magnetic Float Level Switch Specifications

Ambient temperature −4…+176 °F
Process temperature −122…+482°F
Process pressure up to 363 psig
Output 250 V AC, 10 A NO/NC
Process connection flanges or 2″ thread
Ingress protection IP65, IP68
Approvals ATEX, IEC Ex, INMETRO, DNV (Marine), BV (Marine), SIL1

NIVOMAG Magnetic Float Level Switch Model Line-Up

NIVOMAG MK-21 MK-22 MK-23

Fixed hysteresis

X

Adjustable hysteresis

X X

Straight arm

X X X

L or Z arm

X

Side mounted

X X

Top mounted

X X

Submersible

X X X

Rubber protection sleeve

X

Flanged process connection

X X

X

Threaded process connection

X

Ex version

X X X
Tester X X