- Catalogs
- BD SENSORS GmbH
- LMK 458
LMK 458
LMK 458
- Pressure Range: Nominal pressure from 0.04 to 20 bar, with level measurements from 0.4 to 200 mH2O.
- Output Signal: Standard 2-wire 4-20 mA, with optional intrinsic safety version.
- Accuracy: Standard accuracy is 0.25% FSO, with an optional 0.1% FSO for pressures ≥ 0.6 bar.
- Temperature Range: Operating temperatures from -25°C to 125°C.
- Materials: Housing options include stainless steel and CuNiFe, with ceramic diaphragms available in Al2O3 96% or 99.9%.
- High overpressure resistance and long-term stability.
- Available in various configurations including screw-in and flange versions.
- Optional accessories for mounting and protection.
- Water management, including drinking water abstraction and desalinization plants.
- Shipbuilding and offshore, such as ballast tank monitoring and level measurement in storage tanks.
- Complies with IEC 60770 for accuracy and EN 61326 for electromagnetic compatibility.
- ATEX certified for explosion protection in hazardous zones.
- Vibration resistance up to 4 g according to DNV▪GL standards.
- Ingress protection rated at IP68.
- Electrical connections include shielded cables with integrated ventilation tubes.
- Temperature sensor Pt 100 for additional temperature measurement capabilities.
- Various flange and cable gland options for different installation requirements.
Catalog excerpts
LMK 458 Probe for Marine and Offshore! Ceramic Sensor accuracy according to IEC 60770: standard: 0.25 % FSO Nominal pressure The hydrostatic probe LMK 458 has been developed for measuring level in service and from 0 ... 40 cmH20 up to 0 ... 200 mH20 storage tanks and is certificated for shipbuilding Output signals and offshore applications. 2-wire: 4 ... 20 mA others on request Special characteristics ► diameter 39.5 mm ► LR-certificate (Lloyd's Register) ► DNV-GL Approval (Det Norske Veritas ■ Germanischer Lloyd) ► ABS-certificate (American Bureau of Shipping) ► CCS-certificate (China Classification Society) ► high overpressure resistance ► high long-term stability Optional versions ► diaphragm Ah03 99.9 % ► different housing materials (stainless steel, CuNiFe) ► IS-version Ex ia = intrinsically safe for gas ► screw-in and flange version ► accessories e.g. assembling and probe flange, mounting clamp A permissible operating temperature up to 125 °C and the possibility to use the device in intrinsic safe areas enable to measure the pressure of various fluids under extreme conditions. The basis for the LMK 458 is a capacitive ceramic sensor element designed by BD|SENS0RS, which offers a high overload resistance and medium compatibility. Preferred areas of use are Water drinking water abstraction desalinization plant Shipbuilding / Offshore ballast tanks monitoring of a ship's position and draught level measurement in ballast and storage tanks BD SENSORS GmbH BD-Sensors-StraUe 1 D - 95199 Thierstein www.bdsensors.de [email protected]
Open the catalog to page 1
LMK 458 Probe for Marine and Offshore Technical Data Wiring diagrams 2-wire-system current (pressure) / 3-wire-system (temperature) Pin configuration Electrical connection cable colours (IEC 60757) WH (white) BN (brown) Supply VS + Supply VS – Option Pt 100 temperature element: Supply T+ Supply T– Supply T– Shield YE (yellow) GY (grey) PK (pink) GNYE (green-yellow) Dimensions for housing in stainless steel and CuNiFe (mm / in) probe screw-in version prepared for mounting with stainless steel pipe flange version transmitter flange is not part of supply and has to be ordered separately
Open the catalog to page 3
Transmitter flange for flange version Technical data
Open the catalog to page 4
Input LMK 458 in bar, gauge in bar, absolute 1 in mH2O stainless steel 1.4404 (316L) copper-nickel-alloy (CuNi10Fe1 Mn) customer Seals probe flange version 2 screw-in version Electrical connection FKM EPDM FFKM 3 customer TPE-U-cable (blue, 0 7.4 mm) 4 customer Special version standard with temperature sensor Pt 100 5 prepared for mounting 6 with stainless steel pipe customer nominal pressure ranges absolute from 1 bar mounting accessories are not part of supply and have to be ordered separately min. permissible temperature from -15°C shielded cable with integrated ventilation tube for atmospheric...
Open the catalog to page 5
