Level

LMK 358 H

The submersible transmitters LMK 358 and LMK 358 H have been designed for continuous level measurement. Basic
element is a capacitive ceramic sensor. Use in more viscous media such as slurries is possible – removing the protective cap
makes the transmitter flush. On basis on a mechanically robust and highly overloadable capacitive ceramic
sensor the transmitters are among others suited for the measurement of low filling heights with good long term stability. In
order to facilitate stock-keeping and maintenance the transmitter head is plugged to the cable assembly with a connector and
can be changed easily. On type LMK 358 H thermal errors and non-linearity of the sensor are actively compensated by the
microprocessor electronics. Then a D/A converter creates the standard output signal 4 … 20 mA which is overlaid with a signal
according to HART protocol. Thus measurement specific parameters (offset, span, and damping) can be adjusted
individually. The submersible transmitters LMK 358 and LMK 358 H are suited for explosive area (zone 0).
Preferred areas of use are:
- level monitoring in open tanks with low filling heights
- depth or level measurement in wells and open waters
- ground water level measurement
- sewage and water treatment plants
- chemical and pharmaceutical industries

LMK 358 H