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Product range:

Level
Niveau

  • Optical limit switches
    LED light sensor (red light)

  • Immersion probes
    Current or voltage output
    Optionally different cable and sealing materials
    Optional Ex versions

  • Screw-in probes
    Current or voltage output
    Optional Ex versions

Optical limit switch FS-18S

FS-18S
Optical limit switch
LED visual sensor (red light)
Response time <10 ms
Process connection 1/2" BSP male

Immersion probe LMP 307

LMP 307
Immersion probe
with stainless steel sensor
Accuracy ±0.35/0.25/0.1% FS
0...1 to 0...250 mH2O
Diameter: 26.5 mm

More details...

Immersion probe LMK 307

LMK 307
Immersion probe
with ceramics sensor
Accuracy ±0.5% FS
0...4 to 0...250 mH2O
Diameter: 27 mm

More details...

Immersion probe LMK 382

LMK 382
Immersion probe
with ceramics sensor
Accuracy ±0.35/±0.25% FS
0...40 cmH2O to 0...200 mH2O
Diameter: 39,5 mm

More details...

LMP 307

Low temperature error
Very high accuracy
Good long term stability

Options:
SIL-2
Drinking water approval (DVGW, KTW)
Pressure sensor welded to housing (for gasoline)
Mounting with stainless steel tube

Media:
Water, fuels, oils

LMK 307

Good linearity
Excellent long-term stability
Easy handling

Options:
SIL-2

Media:
Water, waste water, fuels, oils

LMK 382
Particularly suitable for waste water, viscous and pasty media

Options:
Mounting with stainless steel pipe
Flange design
Separating membrane made of 99.9% Al2O3

Media:
Water, waste water, fuels, oils
Immersion probe LMK 387

LMK 387
Immersion probe
with ceramics sensor
Accuracy ±0.35/0.25% FS
0...1 to 0...100 mH2O
Diameter: 22 mm

More details...

Srew-in probe LMK 331

LMK 331
Screw-in probe
with ceramics sensor
Accuracy ±0.5% FS
0...400 mbar to 0...60 bar

More details...

Srew-in probe LMK 351

LMK 351
Screw-in sensor
with ceramics sensor
Accuracy ±0.35/0.25% FS
0...40 mbar to 0...20 bar

More details...

LMK 387
Good long-term stability
Especially suitable for waste water

Options:
Titanium housing
Drinking water approval DVGW, KTW
Temperature sensor Pt 100
Mounting with stainless steel tube

Media:
Water, waste water, fuels, oils
LMK 331
Pressure connection 3/4" BSP male flush for pasty and contaminated media

Options:
SIL-2
Pressure connection made of PVDF for aggressive media

Applications:
Plant and mechanical engineering
Energy industry
Environmental technology
Medical technology
LMK 351
Pressure connection 1 1/2" BSP male for pasty and contaminated media

Options:
Separating diaphragm made of 99.9% Al2O3
Pressure connection made of PVDF for aggressive media

Applications:
Plant and mechanical engineering
Water technology
Explanations for level detection

Optical limit switches

They are suitable for level control, especially in water-based and aqueous media, e.g. dry-running protection for pumps, level monitoring in rinsing units of cleaning systems, and many more.

They are particularly easy to put into operation. The sensor is based on an energetic diffuse sensor. No adjustment to the medium is necessary.

Switching output: normally open or normally closed contact

Hygrostatic level measurement

For hygrostatic level measurement we offer our immersion and screw-in probes.

Different housing materials (e.g. stainless steel, extremely resistant ceramics or robust plastics), sensor technologies as well as cable and sealing materials ensure that level detection is always accurate and reliable.

Hygrostatic measurement is the best phsical measurement method for level detection, regardless of whether the medium is contaminated, corrosive, thin or viscous.

Precondition for use: constant medium density.
The output signal of the sensor must be adjusted to the respective medium (with known density), e.g. in mbar/bar, mH2O or liquid column.

A hydrostatic pressure depends on the filling level, the density and the ambient pressure acting on the medium. The ambient pressure is taken into account by the integrated relative reference.

Immersion probes are suitable for measurement in open vessels and water (immersion from above). They are equipped with a cable and are completely immersed in the medium, as close to the bottom as possible.

Screw-in probes are additionally required for measurement in closed vessels, since here the pressure prevailing above the medium in the vessel differs from the ambient pressure.

For level measurement with screw-in probes, they are mounted pressure-tight on the side of the vessel wall.