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NivoMAG MK-200 series
magnetic float level switches
General
NivoMAG MK-200 series magnetic float level switches are used for point level detection of liquids in all types of vessels. Operation without external power, side or top mounting, wide temperature and pressure ranges, various process connections, stainless steel wetted parts and Ex versions make it a universally applicable level switch.
Specifications
| Features |
MKA-2
MKU-2 |
MKG-2
MKV-2 |
MKS-2
MKZ-2 |
| Nominal pressure max. |
2.5 MPa (25 bar)
MKU/V/Z: 0.2 MPa (2 bar) for submersible housing
1.6 MPa (16 bar) for -23 |
Ambient
(housing)
temperature |
-20°C to +80°C |
| Liquid temperature |
-20°C to
+250°C |
0°C to
+100°C |
0°C to
+200°C |
| MKU/V/Z: -20°C to +80°C |
| Protective sleeve |
none |
Rubber |
Silicone rubber |
| Liquid density |
min 0.7 to 0.85 kg/dm3 |
| Switch differential |
-21 is fixed, -22 is adjustable,
-23 (vertical float) is adjustable |
| Switch action |
1 micro-switch with NO and NC contacts |
| Switch rating |
Std: 250V AC 10A; 220V DC 0.6A
Ex: 250V AC 2.5A; 220V DC 0.3A |
| Wetted parts |
Stainless steel |
| Housing |
Paint coated aluminium |
Electrical
connection |
MKA/G/S: 1x Pg 16 cable 5x2.5mm2
MKU/V/Z: integral cable |
| Protection |
MKA/G/S: IP65
MKU/V/Z: IP68 up to 20m water gauge |
| Approvals |
EEx dme IIC T4..T6,
Germanischer Lloyd |
Accessories
MFF counter flange
| | Material |
Flange size |
| MFF-110 |
Mild steel |
92 mm, 30mm studs |
| MFF-111 |
Mild steel |
92 mm, 70mm studs
(for MMK tester) |
| MFF-120 |
Stainless steel |
92 mm, 30mm studs |
| MFF-121 |
Stainless steel |
92 mm, 70mm studs
(for MMK tester) |
MMK tester
Tester is mounted between the unit and counterweight. Operation of the unit can be checked via tester without dismantling or filling/emptying procedures.
| | Material |
| MMK-110 |
Mild steel |
| MMK-120 |
Stainless steel |
Download PDF data sheet (1 mb)
|
NivoMag series
magnetically coupled level switches
Features
- Operation without power supply
- Micro-switch separated from 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
- Explosion-proof models
Applications
- Liquids with at least 0.7 kg/dm3 density
- Fail-safe and control level switches in closed tanks
- Power stations, chemical, petrochemical and pharmaceutical industries
- Balance tanks on ships
Specifications
| |
Switch rating:
|
250V AC, 10A
|
| |
Temperature:
|
-20°C to +250°C
|
| |
Pressure:
|
max. 25 bar
|
| |
Process
connection:
|
square and standard flanges, 2" thread
|
| |
Protection:
|
IP65
|
| |
Approvals:
|
EEx dme IIC T4..T6 Germanischer Lloyd
|
|
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