Used Barfield DC400A DC Fuel Quantity Test Set

Barfield DC400A
Manufacturer: Barfield
Part Number: DC400A
Lead Time: Sold (but we get Barfield stock in all the time)
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The used Barfield DC400A is an aircraft DC fuel quantity test set.

The compact and lightweight DC400A is a complete fuel quantity system test set for use on aircraft that have probes with integral diode rectification, commonly called “DC” fuel quantity systems.

The DC400A is a completely self-contained, portable, lightweight, internal battery powered DC fuel quantity system Test Set. The tester is specifically designed, when used with the proper Adapter Module, to meet the requirements for testing and calibration of a wide range of Aircraft DC Fuel Quantity Systems. The Interchangeable adapter modules customize the DC400A to interface directly with a specific aircraft without the need for an external adapter cable. The digital monitor function monitors the fuel quantity indicator/signal conditioner output directly in pounds, volts, ratio, etc., depending on the module.


  • Capability to bench check Aircraft fuel quantity system components.
  • Capability to test all major components and circuitry in the Aircraft’s DC fuel quantity system.
  • Provides direct digital LCD readout of probe capacitance.
  • Digital readout of quantity system output in (volts, lb., ratio, etc.).
  • Maximum ease of operation and maintenance.


  • Completely self contained DC capacitance fuel quantity test system
  • Capability to bench check aircraft fuel quantity system components
  • Capacitance simulation in the range of 0 to 400 pF with infinite resolution
  • 4 1/2-digit liquid crystal display
  • Interchangeable aircraft interface modules
  • Powered from common AA batteries
  • Provisions for bench-testing of system components
  • State-of-the-art low battery drain circuitry


  • Height - 5.3 inches (13.5 cm)
  • Width - 12.2 inches (31.0 cm)
  • Depth - 10.4 inches (26.4 cm)
  • Weight - 4.5 lbs (2 kg)

Other Part Numbers

  • DC-400A
  • 101-00850