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Home | Products | Level | Level Switches | Magnetic Coupling | NIVOMAG

NIVOMAG – Magnetic Coupling Level Switches

Fixed and adjustable differential models

Features

  • 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 models
  • SIL1 approval
Brand: NIVELCO
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  • Product Details
  • Technical Specs
  • Ordering Information
  • Documents
https://www.intech.co.nz/wp-content/uploads/2019/11/nivomag.mp4

NIVOMAG MK-200 series magnetic float level switches are used for point level detection and level control of liquids in all types of vessels.

Operation principle: the permanent magnet of the float activates the output microswitch by a non-contact coupling system.

The great variety of both the top and side mounted versions makes it easy to install the switch in any tank at any location. For the simplest level switching you can select models with fixed hysteresis, while for level control application 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.

Applications

  • Liquids with min. 0.7 kg/dm3 density
  • Fail-safe and control level switches in closed tanks
  • Power stations, chemical, petrochemical and pharmaceutical industry
  • Ballast tanks on ships

TYPENivomag MK-200 Series
Nominal pressure2,5 MPa (25 bar) [MKU: 0,2/2,5 MPa (2 bar/25 bar)] [MKA-231,6 MPa (16 bar)]
Medium temperaturesee temperature diagram
Ambient temperature–20°C…+80°C, , Ex version: see temperature specification for Ex version table
Liquid densitymin. 0,7–0,85 kg/dm3, see table
FloatCylindrical except MKA-230: Ball Float
Switch hysteresisFixed (MKA/MKU/MKG/MKV/MKS/MKZ
Adjustable (MKA-22 and MKA-23)
Protrusion lengthsee arm length table
Material of wetted   partsStainless steel (1.4571, 1.3960, 1,4404), and MKG: rubber, MKS: silicone
Housing materialPaint coated aluminium
Switch action1 micro-switch with 1 closing and 1 opening contact (NO and NC) *
Switch ratingStandard 250 V AC12 10 A; 220 V DC13 0,6 A
Ex version 250 V AC12 2,5 A; 220 V DC13 0,3 A
Electrical connectionM20x1,5 cable gland, terminal (MKU, MKV, MKZ integrated cable NSSHöu-J 5x1,5 mm2, Ø15 mm) **
Ingress ProtectionIP65 (MKU, MKV, MKZ IP68 up to 20 m underwater)
Electrical protectionClass I.
Safety integrity levelSIL1
Ex markingATEX II2 G EEx dme IIC T2…T6
Mass1,8 – 3,5 kg

* NO and NC terminals should be connected to equipotential circuits
** Cable length should be specified when ordered

  • Nivomag Magnetic Level Switches - Brochure 1.49 MB
  • Nivomag Magnetic Level Switches - Manual 355.42 KB
  • MFF - Nivomag Counter Flange -Technical Drawing 24.05 KB

Product Range

Product Range:
CodeSpecificationsPriceQuantity
MKA-210-0

Fixed differential level switch. Side/Top Mount, square flange. 202mm protrusion length

$620.00
MKA-21B-0

Fixed differential level switch. Side/Top Mount with 2″BSP connection. 189mm protrusion length

$620.00
MKG-210-0

Fixed differential level switch. Side/Top Mount, square flange, 202mm protrusion length, with Rubber Protection Sleeve (Medium 0~100°C)

$736.00
MKS-210-0

Fixed differential level switch. Side/Top Mount, square flange, 202mm protrusion length, with Silicone Protection Sleeve (Medium 0~200°C)

$774.00
MKA-210-4

Fixed differential level switch. Side/Top Mount, square flange, with “L” or “Z” profile

$718.00
MKA-220-0

Adjustable differential level switch. side mount, square flange. 254mm protrusion length

$845.00
MKA-230-1

Adjustable differential level switch. Top Mount. 1265 mm protrusion length / 1000mm Arm length

$925.00
MFF-110

Steel Counter Flange

$145.00
MFF-111

Steel Counter Flange – for units with MMK-110 Tester

$158.00
MFF-120

Stainless steel Counter Flange

$185.00
MFF-121

Stainless Steel Counter Flange – for units with MMK-120 Tester

$196.00
MMK-110

Steel Test Plunger

$260.00
MMK-120

Stainless steel Test Plunger

$389.00
All prices are in NZ$, and GST exclusive and are subject to change without notice.

Intech Instruments Ltd are the New Zealand distributor for Nivelco products. Please contact the Nivelco distributor in your country if you require sales or service support for Nivelco products.

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