Fluke 5520A vs Fluke 5522A

This technical comparison details the Fluke 5520A and Fluke 5522A Multi-Product Calibrators. Both instruments are high-performance standards engineered to calibrate a broad range of electrical and electronic testing equipment. They source direct voltage and current, alternating voltage and current with multiple waveforms, resistance, capacitance, simulated temperature, and phase. This page outlines their shared capabilities, physical specifications, and unique hardware features to assist laboratory professionals and instrument specifiers in selecting the correct model for their workload.

DC Voltage Output Range
0 to ±1020 V
DC Current Output Range
0 to ±20.5 A
Frequency Source Range
0.01 Hz to 2.0 MHz
Warm-up Time
30 minutes
Calibration Interval
1 year
Fluke 5520AFluke 5522A

Specifications

Specification
Fluke5520A
Fluke5522A
General
InterfacesGPIB (IEEE-488), RS-232GPIB (IEEE-488), RS-232
Display—Dual displays: high-contrast backlit graphic LCD for menus/settings, and a segmented vacuum fluorescent display (VFD) for primary output values
Physical
Operating Temperature(°C)0 °C to 50 °C0 °C to 50 °C
Dimensions (W×H×D)(mm)432 mm × 178 mm × 473 mm443 mm × 178 mm × 473 mm
Power Supply—100 V to 240 V AC (±10%), 47 Hz to 63 Hz, < 300 VA
Weight(kg)—22.4
DC Voltage Function
DC Voltage Range Limits0 to ±1020 V—
DC Voltage Best 1-Year Uncertainty±11 ppm of setting—
DC Current Function
DC Current Range Limits0 to ±20.5 A—
AC Voltage Function
AC Voltage Range Limits1 mV to 1020 V—
AC Voltage Frequency Range10 Hz to 500 kHz—
AC Voltage WaveformsSine, square, triangle, truncated sine—
AC Current Function
AC Current Range Limits29 µA to 20.5 A—
AC Current Frequency Range10 Hz to 30 kHz—
Resistance Function
Resistance Range0 to 1100 MΩ—
Resistance Output ModeContinuously variable—
Capacitance Function
Capacitance Range0.19 nF to 110 mF—
Capacitance Output ModeContinuously variable—
Power and Phase Function
Phase Resolution0.01°—
Dual Output CapabilitiesTwo simultaneous voltage outputs or voltage and current—
Frequency and Duty Cycle
Frequency Output Range0.01 Hz to 2.0 MHz—
Oscilloscope Calibration Option
Oscilloscope Calibration Bandwidth OptionsUp to 300 MHz, 600 MHz, or 1.1 GHz (by option)—
Power Quality Option
Power Quality Option Model5520A-PQ—
Pressure and Humidity Measurement
Pressure Module CompatibilityFluke 700 Series—
General & Environmental Specifications
Calibration Software CompatibilityMET/CAL Plus—
Warm-up Time30 minutes—
Recommended Calibration Interval1 year (12 months)—
Storage Temperature Range-20 °C to 70 °C—
Operating Altitude Limit3,050 m (10,000 ft)—
Safety ComplianceDesigned to comply with IEC 1010-1—
Performance
Frequency Output Accuracy± 2.5 ppm—
Power
Power Consumption600 VA—
Line Voltage Settings100 V / 120 V / 220 V / 240 V (± 10%)—
Line Frequency Range47 Hz to 63 Hz—
Temperature
Thermocouple Simulation Resolution0.01 °C / 0.01 °F—
RTD Simulation Resolution0.01 °C / 0.01 °F—
Thermocouple Resolution—0.01 °C or 0.01 °F
Safety & Isolation
Maximum Guard-to-Earth Voltage20 V peak—
DC Voltage
DC Voltage Range—0 to ±1020 V
DC Voltage Resolution—0.1 µV
DC Voltage 1-Year Absolute Uncertainty—±(11 ppm of reading + 1.5 µV) on 3.3 V range
DC Voltage Ranges—329.9999 mV, 3.299999 V, 32.99999 V, 329.9999 V, 1020.000 V
DC Voltage Maximum Compliance Current—220 mA (on 3.3 V and 33 V ranges)
DC Voltage Source Impedance—50 Ω (on 330 mV range)
AC Voltage
AC Voltage Range—1 mV to 1020 V
AC Voltage Frequency Range—10 Hz to 500 kHz
AC Voltage 1-Year Absolute Uncertainty—±(0.015% of reading + 0.002% of range)
AC Voltage Waveforms—Sine, square, triangle, truncated sine
DC Current
DC Current Range—0 to ±20.5 A
DC Current 1-Year Absolute Uncertainty—±(100 ppm of reading + 0.05 µA) on 3.3 mA range
DC Current Maximum Compliance Voltage—7 V (up to 330 mA)
AC Current
AC Current Range—29 µA to 20.5 A
AC Current Frequency Range—10 Hz to 30 kHz
AC Current 1-Year Absolute Uncertainty—±(0.04% of reading + 0.003% of range) at 1 kHz
AC Current Ranges—29 µA to 329.999 µA, 330 µA to 3.29999 mA, 3.3 mA to 32.9999 mA, 33 mA to 329.999 mA, 330 mA to 2.99999 A, 3 A to 20.50000 A
Resistance
Resistance Range—0 Ω to 1.1 GΩ
Resistance Style—Continuously variable
Resistance 1-Year Absolute Uncertainty—±28 ppm of reading on 10.9 kΩ range
Capacitance
Capacitance Range—220 pF to 110 mF
Capacitance 1-Year Absolute Uncertainty—±(0.25% of reading + 10 nF) on 3.3 µF range
Temperature Calibration (Thermocouple)
TC Source/Measure Types—B, C, E, J, K, L, N, R, S, T, U, BP, XK
TC Source Temperature Range—-250 °C to +2316 °C (type-dependent)
TC Source Best Uncertainty—±0.09 °C (Type K)
Temperature Calibration (RTD)
RTD Source Types—Pt385 (100 Ω, 200 Ω, 500 Ω, 1000 Ω), Pt3926, Pt3916, Ni120 (120 Ω Ni), Cu10
RTD Temperature Range—-200 °C to +850 °C (type-dependent)
RTD Best Uncertainty—±0.03 °C (Pt385, 100 Ω)
Phase & Power
Phase Range—-180.00° to +180.00°
Phase Resolution—0.01°
Power Range (Simulated)—Up to 20.9 kW (with voltage and current outputs simultaneously)
Power Frequency Range—10 Hz to 30 kHz
Oscilloscope Calibration (Options)
SC600 Option Bandwidth—Up to 600 MHz
SC1100 Option Bandwidth—Up to 1.1 GHz
Oscilloscope Calibration Functions—Amplitude, edge, fast edge, leveled sine wave, time marker, wave generator
General Technical Specifications
Warm-up Time—30 minutes
Calibration Interval—1 Year
Frequency Uncertainty—±2.5 ppm
Reverse Power Protection (V-Guard)—Up to 300 V peak on all voltage/current output terminals
Environmental
Operating Altitude—Up to 3,050 m (10,000 ft)
Storage Temperature Range—-20 °C to +70 °C
Relative Humidity (Operating)—< 80% to 30 °C, < 70% to 40 °C, < 40% to 50 °C
Storage Altitude—12,192 m (40,000 ft)
Accessories
Compatible Current Coil—Fluke 5500A/COIL 50-Turn Current Coil (extends AC/DC current capability to 1025 A)
Frequency
Frequency Source Range—0.01 Hz to 2.0 MHz
Frequency Source Resolution—11 digits
Power & Phase
Power Factor Range—0 to 1
AC Signal
Harmonics Generation—Up to 50th harmonic
Power Supply
Line Frequency—47 Hz to 63 Hz
Maximum Power Consumption—600 VA
Oscilloscope Calibration
SC300 Option Bandwidth—300 MHz
Compliance
EMC Compliance—IEC 61326-1
Auxiliary AC Voltage Output
Auxiliary AC Voltage Range—10 mV to 3.3 V
Auxiliary Voltage Phase Resolution—0.01°
Thermocouple
Thermocouple Types Supported—B, C, E, J, K, L, N, R, S, T, U, XK, BP
RTD
RTD Types Supported—Pt385 (10 Ω, 50 Ω, 100 Ω, 200 Ω, 500 Ω, 1000 Ω), Pt3926 (100 Ω), Pt3916 (100 Ω), Pt385 (10 Ω), Ni120 (120 Ω), Cu10 (10 Ω)

Shared Calibration Outputs

Both the Fluke 5520A and the Fluke 5522A feature an expansive sourcing envelope. For DC signals, both models provide voltage outputs from 0 to ±1020 V and current outputs from 0 to ±20.5 A. Their alternating current capabilities include AC voltage from 1 mV to 1020 V across a frequency range of 10 Hz to 500 kHz, and AC current from 29 µA to 20.5 A across a frequency range of 10 Hz to 30 kHz.

Available AC waveforms for both instruments include sine, square, triangle, and truncated sine waves. Both systems offer continuously variable resistance ranges up to 1.1 GΩ (or 1100 MΩ) and continuously variable capacitance output modes. Additionally, both units offer dual output capabilities, allowing simultaneous generation of two voltage outputs, or a simultaneous voltage and current output, with a phase resolution of 0.01°.

Hardware and Safety Variations

While sharing identical source limits, key differences exist in the physical interfaces and safety provisions. The Fluke 5522A is equipped with a dual display setup, utilizing a high-contrast backlit graphic LCD for menus and settings, alongside a segmented vacuum fluorescent display (VFD) to show primary output values. The Fluke 5522A also incorporates a built-in V-Guard reverse power protection system, which protects all voltage and current output terminals from external voltages up to 300 V peak.

There are also minor physical differences between the two units. The Fluke 5520A measures 432 mm in width, whereas the Fluke 5522A is slightly wider at 443 mm. Both units share a height of 178 mm and a depth of 473 mm.

Option Support and Simulated Power

For temperature calibration workloads, both models support thermocouple and resistance temperature detector (RTD) simulation. Thermocouple and RTD simulation resolutions are identical at 0.01 °C (or 0.01 °F). Both calibrators can also be configured with oscilloscope calibration options, supporting bandwidths up to 300 MHz, 600 MHz, or 1.1 GHz.

Simulated power capabilities are present on both systems. The Fluke 5522A delivers simulated power up to 20.9 kW when utilizing simultaneous voltage and current outputs, supporting a power factor range from 0 to 1 and harmonics generation up to the 50th harmonic. For specialized power quality calibration, the Fluke 5520A supports a dedicated power quality option model.

Frequently asked questions

What are the capacitance range differences between these two calibrators?
The Fluke 5520A covers a capacitance range of 0.19 nF to 110 mF, while the Fluke 5522A extends slightly lower, offering a capacitance range of 220 pF to 110 mF.
What are the operating and storage temperature limits for these models?
Both the Fluke 5520A and the Fluke 5522A have an identical operating temperature range of 0 °C to 50 °C, and a storage temperature range of -20 °C to +70 °C.