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Digital compensator probe

Eaton’s digital fuel gauging compensator probe measures fuel dielectric constant for highly accurate fuel-quantity calculations. It also measures fuel height in the tank proportional to capacitance and sends capacitance, temperature and contamination data to a monitoring computer via a digital bus. One wire set sends all probe and compensator data, eliminating the need for additional compensator wiring.

Capacitance based
Carbon composite
Qualified Length
22 in – 50 in


  • 40% weight savings compared to similar sized aluminum
  • Integrated temperature sensor
  • Water detection
  • All analog errors calibrated out during probe Acceptance Test Procedure (ATP)
  • Digital immunity, no analog Amplitude Modulation (AM) noise susceptibility
  • Simple circuit board on probe
    • No micro processor
    • No software or firmware
  • Meets intrinsic safety requirements of 25.981
  • Custom lengths can be designed
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