Level probe (stainless steel)
Item number: LMK 387 Applications Chemical industryFossil raw materialsEnergy
Price on request
Delivery time:Delivery time on request
The LMK 387 stainless steel submersible probe was designed for level and gauge measurement in wastewater, sludge or riverbeds. The mechanical robustness of the flush ceramic diaphragm facilitates easy disassembly and cleaning of the probe. The outer diameter is only 22 mm, which means that installation or retrofitting in 1\" pipes or in confined installation conditions can be carried out without any problems. An intrinsically safe version (zone 0) is also available.
Attributes of Level probe (stainless steel)
May differ from supplier data
Basic data
Filling level 4 to 200 mH2O
Accuracy (%) 0.35 %
Air pressure measurement range 0 to 20 bar
Measurement rate 80 Hz
Medium temperature range/process temperature -40 to 125 °C
Additional measurement possibilities Filling level
Measured medium Wastewater Fuels Water Show all Oils
Measurement principle Hydrostatic
Probe type Immersion probe / level probe
Separating diaphragm/diaphragm material Ceramic Al2O3 96% Ceramic Al2O3 99.9%
Housing / Design / Mechanical data / Materials
Sensor diameter 22 mm
Housing material primary Stainless steel
Sealing material Viton® (FKM) EPDM FFKM
Product environmental influences (protection class/temperature)
Operating temperature range 0 to 75 °C
Protection class IP 68
Electrical data / Signal connections
Number of wires 3
Electrical connection Connection cable, FEP Connection cable, PUR Connection cable, PVC Show all Connection cable, TPE
More functions and options
More functions/options Reverse polarity protection Short-circuit proof
Customized versions
Customized versions Other pressure ranges Signal outputs Connection cable Show all Other seal material on request Other accuracies Separating diaphragms, others on request
Signal inputs/outputs and interfaces
Signal output 0…10 V 4…20 mA
Typical applications
Typ. applications Chemicals industry Energy industry Environmental engineering Show all Groundwater monitoring Level monitoring Sewage treatment plants Water treatment Bio-gas plants Tank batteries
Approvals / Certificates / Performance level / Integrity level
Certificates/approvals IBExU 13 ATEXxxx X
Process connection
Process connection/installation Immersion probe G1/2" G3/4"