PSD90-1C AC/DC Fuel Capacitance Test Set

The PSD90-1C Universal AC/DC Capacitance Test Set will test any AC or DC Capacitive Fuel, Water, LOX or Engine Oil Quantity System*. The PSD90-1C has features that allow the user to better troubleshoot and isolate fuel system problems. Rugged in design, the unit can be used anywhere testing and troubleshooting is required. Capable of being operated with external power, the PSD90-1C is ideal for shop or Depot Level repair of fuel system components.

NSN: 4920-01-510-5628 Designed for F-16 fleet
NSN: 4920-01-528-2230 Designed for universal non-F16 fleet

Key Features

  • Closed box calibration using front panel controls – performed annually
  • Lightweight/portable
  • Rechargeable battery or externally powered
  • Percent of battery capacity displayed
  • Self-test on power-up
  • Measures DC voltage
  • Manual or auto ranging
  • 2 and 3 wire megger


Advanced Features

  • Manual Megger/DC Cap Ranging Mode. Allows user to manually select range to speed up troubleshooting and assist in finding intermittent faults
  • Low Voltage/Low Current Mode. To assist user in isolating intermittent connections that other test sets may mask (fritting)
  • REV DC (DC+) Mode. Measures capacitance from the DC+ side of the tank unit for testing and troubleshooting DC+ circuits Distance-to-Fault (DTF) Mode. Measures capacitance between the center conductor and shield of any coaxial or shielded wire,
    thereby determining the “length” of the wire or the approximate distance to a break in the wire or shield

Test Set Compliance

  • Compliant with Boeing Spec 10-61959 Rev H
  • MIL-STD-810 Method 511.4 certified
  • Traceable to NIST