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.
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.
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.
| 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 | 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 |
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