MPILC: Capacitance Based Level Controller and Transmitter

Item Code: MPILC

Capacitance Level Transmitter with Remote Display and Control Unit
  • Application Temperature Range : Up to 350°C
  • Microprocessor based system for higher degree of reliability and stable operation in noisy environments
  • Calibration possible without completely filling and emptying the vessel
  • Wetted parts PTFE, Ceramic, SS 304 & SS 316
  • Rod & rope type probe
  • Process Connection : Screwed , Flange & Tri-Clamp
  • Certifications: Flame Proof IIA, IIB & IP65 Housing
  • Probe length 100 mm to 10m

Principle
The probe is mounted from the top of the vessel and it comprises of a sense electrode which is electrically isolated from the metallic tank by means of a suitable insulator. The sense electrode and the vessel wall serve as the two electrodes of a capacitor with the service material acting as the dielectric. A change in the material level causes a change in the dielectric, which in turn causes the value of this tank capacitor to change. An accurate measurement of this change affords an indirect measure of the level of the material in the tank.

Highlights
  • Three relays for programming three levels independently
  • Programmable via 2 1/2 digit, 7-segment LED display
  • Galvanically isolated 4-20mA output for connecting to PLC
  • Built-in universal power supply: 90-260 V AC and 24 V DC
  • Calibrate without completely filling and emptying the tank
Benefits
  • Microprocessor based system for higher degree of reliability and stable operation in noisy environments, made possible with the use of intelligent digital communication between the electronic insert and the evaluation unit
  • All parameters programmable via Five keys and Five multi-purpose LED displays
  • Galvanically isolated 4 to 20mA output available for connecting to PLC
  • Three potential free change over relay output contacts
  • Galvanically Isolated True Two Wire 4-20 mA Proportional to 0% and 100% level is available for remote indication purposes
Applications
  • Switch pumps off when tank is full, to avoid overflow
  • Maintain a constant level to avoid material wastage
  • Switch off pumps when running dry
  • Identify empty tank to avoid wear-tear,production stoppage