The 52120A is designed for users whose ability to address their calibration workload may be
limited by the output current, accuracy and drive capability of their present test equipment,
including:

• Calibration professionals in a calibration/standards lab or an electrical utility
• Manufacturers of power/energy instrumentation and meters, power quality analyzers or power converters
• Users of electrical test and measurement equipment

The 52120A operates as a transconductance amplifier with:

• 5500A/5520A/5522A Multi-Product Calibrator
• 5700A/5720A Multifunction Calibrator
• 5080A Multi-Product Calibrator
• 9100 Universal Calibration System
• Any calibrator, signal generator or power supply capable of sourcing 2 V or 200 mA, dc or ac

You may also operate your 52120A in closed-loop mode, seamlessly communicating with your Fluke Calibration 6105A or 6100B Electrical Power Standard to deliver enhanced 52120A accuracy.

• Industry-leading amplifier accuracy:
• - 140 ppm ac (used with 61XXA Electrical Power Standard)
• - 350 ppm ac (used with dc/lf calibrator
• - 160 ppm dc (used with dc/lf calibrator
• Frequency: DC to 10 kHz
• Burden voltage (compliance): 4.5 V @ 120 A
• Inductive drive capability: 1 mH load
• Output ranges: 2 A, 20 A, 120 A
• Input ranges: 2 V or 200 mA F.S. for 2 A and 20 A ranges, 1.2 V or 120 mA F.S. for 120 A range
• Parallel operation: Closed loop with 61XXX, 2 or 3 amplifiers, up to 360 A in a single phase
• Parallel operation: Standalone operation, up to 10 amplifiers, up to 1200 A in a single phase
• Accessory coils: 25-turn coil supports 3000 A, 50-turn coil supports 6000 A
• Control communication with 6105A/6100B Electrical Power Standards
• GPIB remote operation

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