MicroSENSOR R2430 Capacitance level instruments measure level based on changes in the electrical capacitance between the sensing element, referred to as the "probe" and earth ground. 

The technology is applicable for both conductive and insulating materials, however, careful application considerations to both the equipment selected and the mounting configuration are required.

Principle of operation 

Electrode, product and vessel wall form an electrical capacitor. 

The capacitance is particularly influenced by three factors:

• distance of the electrode plates
• size of the electrode plates
• dielectric value of material between the electrodes

ADVANTAGES

• • Two wire compact transmitter
  • Rod or cable probes up to 20m
  • Fully or partly insulated probes
  • Selectable sensitivity
  • Secondary lightning protection
  • Various process connections
  • 'Ex' versions available

APPLICATIONS

• Liquids, powders, granules 
  • relative dielectric constant K > 2 
• Vaporous chemicals
• Viscose liquids
• Corrosive materials
• High pressure, high  temperature or vacuum

SPECIFICATIONS

• Power supply: 12-30V DC
• Temperature: -25 °C to 200 °C
• Pressure: max. 230 psi
• Output: 4-20 mA
• Process connection: 1" or 1-1/2" NPT
• Enclosure: NEMA 4 (IP 65)
• Approvals: EEx ia/ib IIB T4

      With continuous level measurement, the product level is continuously monitored and converted into a level-proportional signal which is either indicated directly or further processed.

     The signal can be processed in two different ways: either via a signal conditioning instrument or via a compact sensor that outputs the signal directly as a 4...20 mA signal.