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 overload resistance and medium compatibility.

Accuracy according to IEC 60770: 0.1 % FSO

Nominal pressure from 0 ... 60 cmH2O up to 0 ... 200 mH2O

Output signals 2-wire: 4 ... 20 mA, others on request

Special characteristics

shipping approvals acc. to: Lloyd´s Register (LR), Det Norske Veritas ▪ Germanischer Lloyd (DNV▪GL) China Classification Society (CCS), American Bureau of Shipping (ABS)

diameter 39.5 mm

HART® communication (setting of

offset, span and damping)

high overpressure resistance

high long-term stability

Optional versions

IS-version Ex ia = intrinsically safe for gas and dust

diaphragm AI2O3 99.9 %

different housing materials (stainless steel, CuNiFe)

screw-in and flange version

accessories e. g. assembling and probe flange, mounting clamp

Preferred areas of use are:

Drinking water abstraction

Desalinization plant

Shipbuilding / Offshore

Ballast tanks

Draught monitoring

Level measurement in ballast and storage tanks