VIAVI PSD90-3 – Fuel Quantity Test Set - AC and DC

The VIAVI PSD90-3 is a versatile, high-precision test set designed to evaluate AC and DC capacitive fuel, water, liquid oxygen (LOX), and engine oil measurement systems with accuracy and reliability.

When paired with aircraft-specific interface units, the PSD90-3 enables comprehensive testing, troubleshooting, and calibration of fuel quantity systems, as well as the detection of contaminated fuel probes.

Engineered for both flight line and bench testing, the PSD90-3 operates on battery power for field use or external power for extended bench diagnostics.

Key Functions

• Measurement of capacitance, DC voltage, insulation resistance, and Distance-to-Fault (DTF)
• Simulation of capacitance for indicator calibration and troubleshooting
• Automatic detection of contaminated fuel probes during capacitance measurements
• Manual probe contamination analysis using the Check Probe function with adjustable error limits
• Low Voltage/Low Current Mode for isolating intermittent or corroded connections
• REV DC (DC+) Mode for complete testing of DC capacitive fuel systems
• Self-test on power-up for system integrity verification

Top Features

• Intrinsically safe design for use in sensitive environments
• Closed-box calibration via front panel controls
• Battery-powered with external power option for flexible operation
• Distance-to-Fault (DTF) Mode for locating wiring faults
• Compatible with a wide range of existing aircraft fuel quantity system interfaces
• Optional OEM DC mode emulating PSD30-2AF operation for enhanced compatibility

Standard Accessories

• Universal Charger
• Operations Manual
• F-16 Interface Adapter Cable (F-16 Test Set 22165794 only)
• Connector BNCF Rev. Polarity
• Connector BNCM Rev. Polarity (Qty 2)
• Ground Cable

Optional Accessories

• PTS-3 Calibration Standard
• PSD30-2AF Interface Adapter
• Maintenance Manual

Whether you need to troubleshoot a fuel quantity issue, calibrate indicators, or detect probe contamination, the VIAVI PSD90-3 delivers reliable, precise, and user-friendly testing capabilities for aviation maintenance professionals. Contact us via phone, email, or chat to find the perfect interface solution for your aircraft and ensure optimal fuel system performance.