LMK458 Marine Approved Hydrostatic Level Transmitter

LMK458 Hydrostatic Probe for Marine and Offshore

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Marine approved level transmitter with 4-20mA current loop output for measuring the level of contents inside a ships ballast, fuel, liquid cargo or wastewater tanks with optional all CuNiFe construction for sea-water compatibility in ranges from 0.4 mH2O to 200mH2O gauge or absolute.

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Product Parameters 

Pressure Ranges: 0.4 up to 200 mWG, 40mbar to 20 bar gauge or absolute

Accuracy: 0.25% full scale with optional 0.1%  for ranges above 6mH2O only

Output Signal: 4-20mA current

Electrical Connection: IP68 submersible TPE, FEP or PUR cable outlet

Pressure Connections: flange or screw-in with flush diaphragm

Media Compatibility: Stainless steel 316L or CuNi10Fe1Mn body, Ceramic Al2O3 (96%) diaphragm, FKM, FFKM or EPDM seal gasket plus selected cable jacket

Dimensions: 39.5 mm diameter 

Weight: 650 g minimum 

Special Features: DNV & GL marine approved for use on ships ballast, fuel and liquid cargo tanks

Special Options: CuNi10Fe1Mn construction for seawater use, ATEX IS approval, prepared for pipe mounting, integrated PT100 temperature sensor


Product Description

The LMK 458 marine level transmitter has a capacitive ceramic sensing diaphragm which is compatible with sea water and salt spray when the copper nickel alloy option is specified.

The LMK458 marine level transmitter is Germanischer Lloyd (GL) and Det Norske Veritas (DNV)approved for marine use and can be used on seawater ballast, fuel, oil, service and waste water systems.

ATEX approved for intrinsically safe use in hazardous environments the LMK-458 marine approved level transmitter can also be used on ship systems which are handling flammable and volatile chemicals such as oil, gas, liquid petroleum gas (LPG) and liquid natural gas (LNG).

The LMK-458 ballast level sensor comes in a range of pressure fittings for either lowering into a tank, screwing into a pipe or flange mounting to the wall of a tank.


Related Products

Marine approved pressure transmitters

Submersible pressure transmitters

Hydrostatic pressure sensors for externally mounting to a storage tank wall


Download Product Information

LMK458 data sheet LMK458 data sheet

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  • Pressure Conversion

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  • IP Ratings Explained

    I P

    First Digit (Solids)
    No protection

    Second Digit (Liquids)
    No protection

  • Temperature Conversion

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