Details
LMC Capacitance type limit switch is a static level sensor, Sensing parts of LMC capacitance level
limit switch are:
1) Earth Extension (metallic process connection may be used as earth in-place of earth extension tubes).
2) Sensing Rod (or Rope as per application).
The capacitance is formed by the sense rod and earth
When no material is present, the capacitance is analogically a multiple of probe dimension and
dielectric constant of air {ε(air)≈1}.
When the material is present, the capacitance gets multiplied by dielectric constant of the
material {ε(material)>2}.
This variation in capacitance, which is due to the dielectric property of material, is then translated into switching output by the LMC Capacitance level limit switch.
With two point independent type switches, two different values are mapped to two different outputs and thus only one level switch can provide two different level outputs.
