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NIVOMAG MK-200 Magnetic Level Switch
Brand: Nivelco Process Control Co.NIVOMAG MK-200 series magnetic float level switches are used for point level detection and level control of liquids in all types of vessels.
Measurement principal: a non contact coupling system is realized 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.
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.
Features- Operation 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
Specifications
Ambient Temperature Range
- -20° to 80° C (-4° to 176° F)
Approvals & Certifications
- Safety Integrity Level SIL 1
Approvals & Certifications
- ATEX II2 G EEx dme IIC T2 to T6
- CE 1418
- DNV
- GL
- RoHS
- TÜV
BSP Connection
- 2” BSP Male
Diameter
- Float (Arm Length): 2.04” to 4.88” (52 to 124 mm)
Electrical Connectors
- M20 x 1.5 Cable Gland
- Terminals - MKU, MKV, MKZ Integrated Cable
Electrical Contacts
- Normally Closed
- Normally Open
Electrical Rating
- Switch Rating: 0.3 A at 220 Vdc - Ex Version
- Switch Rating: 0.6 A at 220 Vdc
- Switch Rating: 10 A at 250 Vac
- Switch Rating: 2.5 A at 250 Vac - Ex Version
Enclosure, Body Material
- Paint Coated Aluminum
Environmental Protection
- IP65
- IP68 - MKU, MKV, MKZ Model
Flange Size - 3” (DN 80)
- 3” (DN 80) - PN 25
Flange Size - 4” (DN 100)
- 4” (DN 100) - PN 25
Flange Size - 5” (DN 125)
- 5” (DN 125) - PN 25
Flange Size - 6” (DN 150)
- 6” (DN 150) - PN 25
Length
- Arm Length: 0” to 11.81” (0 to 300 mm) - MK-21, 22 Model
- Arm Length: 39.37” to 118.1” (1,000 to 3,000 mm) - MK-23 Model
Materials of Construction
- Rubber Protection Sleeve
- Silicon Rubber Sleeve
Media
- Water
Mounting
- Side Mounting - MK 21, MK 22 Model
- Top Mounting - MK 21, MK 23 Model
Nominal Pressure
- psi: 232.1 (kPa: 1,600, bar: 16) - MKA 23 Model
- psi: 29 to 362.6 (kPa: 200 to 2,500, bar: 2 to 25) - MKU Model
- psi: 362.6 (kPa: 2,500, bar: 25) - MKA 21, MKA 22, MKG 21, MKV 21, MKS 21, MKZ 21 Model
NPT Connection
- 2” NPT Male
Process Connection Material
- AISI 316Ti Stainless Steel, 1.4542
- Mild Steel
Process Temperature
- 80° to 250° C (176° to 482° F) - Max.
Sensor, Probe Style
- Float
Wetted Materials
- AISI 316L Stainless Steel, 1.4401
- AISI 316Ti Stainless Steel, 1.4542
- AISI Cast Stainless Steel, 1.3960
- Rubber - MKG Model
- Silicone - MKS Model
- Liquids With Minimum 0.7 kg/dm³ Density
- Fail-Safe and Control Level Switches in Closed Tanks
- Ballast Tanks on Ships
- Chemical Industry
- Food and Beverage
- Power Plants
- Oil & Petrochemical Industry
- Water Industry
- Overflow Protection
- Pharmaceutical Industry