Fluke 5322A Electrical Safety Tester Calibrator

The Fluke 5322A Electrical Safety Tester Calibrator is a dedicated instrument for calibrating electrical safety test equipment across multiple measurement functions. It eliminates the need for multiple products, enabling technicians to validate insulation resistance testers, ground bond testers, hipot testers, RCD/GFCI testers, multifunction installation testers, and portable appliance testers (PATs) against international standards including BS7671 17th Edition, IEC/EN, and AS/NZS 3000.

Technical Specifications

• High voltage resistance outputs continuously variable up to 1.5 kV (base model) or 5 kV (5322A/5 model)


• Resistance ranges to 100 GΩ with 4.5-digit resolution for testers up to 5 kV


• External R-Multiplier extends ranges to 10 TΩ for 10 kV insulation testers


• Continuously variable resistance adjustment supports calibration of analog hand-cranked testers -# Leakage Current


• Simulates direct/touch, differential, and substitute leakage current methods


• 10 µA resolution from 0.1 mA to 30 mA


• 4.5-digit resolution across full 0.1 mA to 30 mA range -# Ground Bond Testing


• 2-wire and 4-wire measurement modes


• Lowest 4-wire output: 1 mΩ


• Resistance sourcing: 100 mΩ to 10 kΩ with 3.5-digit resolution


• Discrete 4-wire 10 mΩ resistor option available -# Loop/Line Impedance


• 16 high-power, high-current resistors for loop or line resistance sourcing


• Automatic scan mode determines loop resistance


• Active Loop Compensation (VLC option) cancels residual line impedance -# RCD/GFCI Testing


• Simulates RCD/GFCI trip current and trip time


• Trip time uncertainty: 0.25 ms (better than 4:1 TUR for most RCD testers)


• Trip current uncertainty: 1% (better than 4:1 TUR in most applications)


• PAT RCD mode for portable appliance tester calibration -# Hipot Testing


• Built-in meter measures voltage to 5 kV


• 10 kV divider accessory provides 0.5% uncertainty for testers up to 10 kV


• Optional 40 kV probe available

Key Features

• Multi-function calibration in a single instrument


• High-resolution measurement across all safety test functions


• Supports both modern digital and legacy analog testers

Typical Applications

• Calibration laboratory operations


• Field service and maintenance verification


• Regulatory compliance validation per international standards