LMK 458H - Submersible pressure transmitter for Marine & Offshore with HART


The hydrostatic probe LMK 458H has been de-veloped for measuring level in service and storage tanks and is as a consequence of the certification by Germanischer Lloyd predestined for shipbuilding and offshore applications. 

A permissible operating temperature of up to 85 °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 458H is a capacitive ceramic sensor element, which offers a high over-load resistance and medium compatibility.

Product details

Minimum pressure range
0.06 bar
Maximum pressure range
20 bar
Gauge Only
4-20mA / 2-wire, HART communication
Supply Voltage
12 - 36V dc (14 - 28V dc for Ex-protection)
standard: ≤±0.2% FSO option: for PN ≥1 bar: ≤±0.1% FSO
Sensor Type
Ceramic Capacitive
Process Connection
Nose cone, Threaded connection for flange mounting
Electrical Connection
TPE-U vented cable with strain relief
IP Rating
IP68 Fully submersible
Cable sheath material
Diaphragm Material
Ceramic Al2O3 96 %, optional Al2O3 99.9 %
Process Connection Material
Stainless steel 1.4404 (316L), optional Copper-Nickel-alloy (CuNi10Fe1Mn)
Temperature Range
-25 to +85°C
Optional Extra's
Process Connection, Electrical Connection, housing material, O ring type, ATEX approval, threaded backend for pipe or conduit mounting
ATEX Approval Ex ia, Germanischer Lloyd (GL), Det Norske Veritas (DNV), China Classification Society (CCS)
Product Downloads

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