Fluke 5322A Electrical Safety Tester Calibrator


Maximize workload coverage in a quarter of the time

The Fluke Calibration 5322A Multifunction Electrical Tester Calibrator combines many functions into a single instrument, replacing discrete resistors, decade boxes, and other custom solutions commonly used to calibrate electrical safety testers. It’s flexible and precise enough to calibrate a wide range of instrumentation, and fast enough to handle the job in a quarter of the time you spend on manual multi-product methods.

Insulation resistance testers

The 5322A calibrator sources high-value, high-voltage resistors, and measures the high voltage output of megohm meters and other portable and bench insulation testers. When calibrating insulation resistance testers up to 5 kV, you can select a wide range of continuously variable resistance values, from 10 kΩ to 100 GΩ with 4.5-digit resolution. When calibrating 10 kV insulation testers, the included R-multiplier extends these ranges to 10 TΩ and 10 kV. The included 10 kV divider measures testers to 10 kV with greater precision than the 40 kV probe, ensuring you get the TUR you need for these tests.

Leakage current testers

Simulate leakage current for direct/touch, differential, and substitute leakage current methods with 10 µA resolution from 0.1 mA to 30 mA. The 5322A lets you choose the leakage current test method that works best for your situation, unlike other calibrators that only offer a single method.

Multifunction installation testers

The 5322A makes quick work of these multifunction installation testers with the flexibility to calibrate insulation resistance, continuity, loop impedance, RCD, and earth resistance tester capabilities. This means that calibrations are completed with one instrument.

Portable appliance testers (PATs)

The 5322A has all the functionality needed to calibrate PATs, with insulation resistance, ground bond, leakage current RCD, flash voltage, and load test capabilities.

Continuity testers and earth (ground) resistance testers

To calibrate these low ohms testers, a calibrator must be able to source precision low ohms. From its low ohms precision resistors, the 5322A calibrator sources resistance values ranging from 100 mΩ to 10 kΩ, with 3.5 digits of resolution. Choose 2-wire or 4-wire modes for maximum flexibility or a discrete 4-wire 10 mΩ resistor to cover even more workload.

Loop/line impedance testers and ground bond testers

The 5322A calibrator has 16 high-power, high-current resistors it can source to increase the resistance of a loop or line by a known amount. Use Scan mode to automatically determine the resistance of the loop, and use Active Loop Compensation mode (5322A/VLC) to compensate for any residual impedance in the loop or line. Ground bond resistance outputs are either 2-wire or 4-wire. The lowest 4-wire output is 1 mΩ.

Residual-current device (RCD) or ground fault current interrupter (GFCI) testers

The 5322A simulates a circuit breaker (an RCD/GFCI) to verify and calibrate trip current and trip time, without tripping the installation’s current breakers. For most RCD testers, trip times are calculated to an uncertainty of 0.25 ms, to provide better than 4:1 test uncertainty ratios (TUR). Trip current uncertainty is 1 %, which also provides better than 4:1 TURs in most applications. The 5322A also has a special PAT RCD mode to calibrate the RCD function of those testers.

Hipot testers

Electrical safety testing with pots is an integral part of the development and manufacturing of electronic and electrical products, ranging from refrigerators to power supplies. Such testing is often required by government regulations to ensure product safety. The 5322A provides the best-in-class hipot calibration of ac and dc voltage. The built-in meter measures voltage and current for voltages up to 5 kV. The 5 kV range also measures hipot ripple coefficient and distortion (THD).

For the measurement of hipot current up to 100 mA, Fluke Calibration offers a load adapter accessory. Use the load adapter in conjunction with the 5322A built-in current meter for full calibration of hipots. For voltages over 5 kV the included 10 kV divider accessory or optional characterized 40 kV probe can be used. The 10 kV divider measures voltages to 10 kV with 0.5 % uncertainty.

5322A front and rear panel details

A. Large, bright full-color display
Large readouts enable you to easily read the primary sourced or measured values. Sourced values are in blue and measured values are in red.

B. Active Terminal Display
Always know which calibrator terminals are active. When a function has been selected, the graphical display shows the active terminals.

C. Soft menu keys
Soft menu keys adapt to the active function, so the menu structure is intuitive and easy to learn.

D. Output jog wheel, numeric keyboard
To select an output value or measurement range, use the numeric keypad or rotary jog wheel.

E. Graphical help guide
Find out what connections to make in an easy-to-understand graphical format. The help guide is available through Mode softkey.

F. Spec readout
The spec readout lets you view the uncertainty of the sourced or measured primary value.

G. IEEE 488 and USB communication

The MET/CAL® Calibration Management Software advantage

The 5322A calibrator works with Fluke Calibration MET/CAL Calibration Software, in 5320A emulation mode, allowing you to increase throughput up to four times that of traditional manual and multi-product methods while ensuring calibrations are performed consistently every time. This powerful software documents calibration procedures, processes and results for ease in complying with ISO 17025 and similar quality standards.

The support you need, when you need it

Fluke calibrators are known for their accuracy and reliability. Fluke operates global calibration and repair facilities to keep your equipment in top working order. Reduce your calibrator downtime and control your cost of ownership with a Priority Gold service package. Fluke Calibration CarePlans feature an annual standard or accredited calibration of your 5322A calibrator with the guaranteed turnaround and no cost for repairs. (CarePlans are not available in all countries. Please check with your local Fluke Calibration sales representative for calibration services in your area).

Flexible choices to calibrate your electrical tester workload

Multiple model choices for the 5322A give you the flexibility to select the features best suited to your lab’s workload. The base 5322A model offers 1.5 kV high resistance sourcing. The 5322A/5 offers 5 kV high voltage resistor sourcing to handle the growing population of high voltage based safety testers.

To either model, add active loop compensation and a 600 V precision ac/dc output source for calibrating the voltage measurement function of DUTs. You can also add a characterized 40 kV probe accessory for making precision measurements of very high voltages to 0.5% accuracy.

Included accessories offer additional flexibility

Each 5322A comes with an external R-Multiplier to source resistances of up to 10 TΩ for testing insulation testers to 10 kV. A RCD PAT adapter is also included for safe secure connections to the 5322A for your specific regional electrical appliance plug and socket type. Also included is an external 10 kV divider to measure testers with 10 kV outputs, to meet more stringent test accuracy ratios required by some regulations. This broad range of model options put you in control of selecting the right model to match your workload and your budget.

Optional 5322A-LOAD

An optional 5322A-LOAD 5 kV high resistance load option is available with 5 kV high voltage resistors to allow direct connection to hipots for leakage tests. This 5322A-LOAD is unique in that it supports 5 kV testing and has nine high voltage resistors, ranging from 10 kΩ to 10 Ω, that can be combined in parallel, within voltage limits, to obtain more precise results.

General specifications

Specifications confidence level 99%
Specifications interval 1 year
Power line 115/230 V ac (50/60 Hz) +10 % / -14 %, with the maximum voltage difference between neutral and protective earth not exceeding 15 V. Operation with power line between -10 % and -14 % has limitations in burden current for voltage outputs. See AC/DC Voltage Calibrator (VLC option) below.
Power consumption 1250 VA maximum
Fuse protection AC mains input: 2 A, 250 V for 230 V, time delay (T2L250 V – 5 mm x 20 mm) 4 A, 250 V for 115 V, time delay (T4L250 V – 5 mm x 20 mm)

RCD input: 3.15 A, 250 V, fast (F3.15H250 V – 5 mm x 20 mm)

Meter amps (A) input: 20 A, 500 V, time delay (F20H500 V – 6.3 mm x 32 mm)

Loop/Line impedance input: 4 A, 500 V, time delay (T4H500 V – 6.3 mm x 32 mm)

Leakage current input: 100 mA, 250 V, fast (F100 mL250 V – 5 mm x 20 mm)

Warm-up time 15 minutes
Temperature performance Operating temperature: 18 °C to 28 °C

Calibration temperature (tcal): 23 °C

Temperature coefficient for temperatures outside of tcal ± 5 °C is 0.1 / °C of the specification, for temperatures between 5 °C to 40 °C.

Storage temperature : -10 °C to 50 °C

Storage recovery time: Typically <24 hours at operating temperature

Relative humidity (operating) <80 % to 28 °C (resistance outputs >10 GΩ specified for <70 % to 28 °C)
Relative humidity (storage) 90 % non-condensing 0 °C to 50 °C
Altitude Operating: 3050 m (10 000 ft)

Storage: 12 200 m (40 000 ft)

Dimensions and weight
Dimensions 430 mm x 555 mm x 170 mm (16.9 in x 21.8 in x 6.7 in)
Weight 20 kg (44.1 lb)
Safety Mains: IEC 61010-1: Overvoltage category II, pollution degree 2

Measurement: IEC 61010-2-030: 5000 V (not category rated)

Electromagnetic compatibility (EMC) International:

  • IEC 61326-1: Basic electromagnetic environment
  • CISPR 11: Group 1, Class A
    • Group 1: Equipment has intentionally generated and/or uses conductively-coupled radio frequency energy that is necessary for the internal function of the equipment itself.
    • Class A: Equipment is suitable for use in all establishments other than domestic and those directly connected to a low-voltage power supply network that supplies buildings used for domestic purposes. There may be potential difficulties in ensuring electromagnetic compatibility in other environments due to conducted and radiated disturbances.Emissions that exceed the levels required by CISPR 11 can occur when the equipment is connected to a test object.

Korea (KCC):

  • Class A: Equipment meets requirements for industrial electromagnetic wave equipment and the seller or user should take notice of it. This equipment is intended for use in business environments and not to be used in homes.


  • 47 CFR 15 subpart B. This product is considered an exempt device per clause 15.103.

Electrical specifications

Low resistance source
Range 100 mΩ to 10 kΩ + 10 mΩ single value selection, dc and line frequency (50/60 Hz)
1.5 kV high resistance source (DC only)
Range 10 kΩ to 10 GΩ + 100 GΩ single value selection
5.5 kV high resistance source (DC only) (5322A with /5 option)
Range 10 kΩ to 100 GΩ
Test voltage measurement
Range 0 V dc to 5500 V dc
Ground bond resistance source
Resistance mode
Range 1 mΩ to 1700 Ω, dc and line frequency (50/60 Hz)
Line/loop impedance source
Range 25 mΩ to 1700 Ω
Correction manual/scan mode
Residual impedance range 0 Ω to 10 Ω
Resolution 1 mΩ
Correction COMP mode (active loop compensation) (5322AVLC Option)
Maximum compensated impedance 0 Ω to 2 Ω
Leakage current source
Range 0.1 to 30 mA
Test voltage Passive mode: 60 V ac to 250 V ac rms

Differential mode: 60 V ac to 250 V ac rms

Substitute mode:10 V ac to 250 V ac rms

Active mode (5322A/VLC only)[1]: 50 V ac to 100 V ac rms

Uncertainty Passive mode: ± (0.3% setting + 2 μA)

Differential mode: ± (0.3% setting + 2 μA)

Test uncertainty can be influenced by power line voltage instability

Substitute mode: ± (0.3% setting + 2 μA)

Active mode (5322A/VLC only)[1]: ± (0.3% setting + 1 μA)

[1] The Active Mode outputs are synchronized with the ac mains frequency to suppress interference between the calibrator and external noise sources.
Human body simulation (for substitute leakage currently only Resistance range: 0 Ω to 10 000 Ω

Resolution: 1 Ω

RCD (residual current device) (for installation testers)
Trip current range 0.5 X I and 1 X I Mode: 5 to 30 mA in 1 mA steps

1.4 X I and 2 X I Mode: 14 to 60 mA in 1 mA steps

5 X I Mode: 50 to 150 mA in 1 mA steps

Trip current measurement resolution 1 μA below 30 mA

10 μA in range from 30 mA to 150 mA

100 μA in range from 300 mA to 3 A

Trip current measurement uncertainty
Trip current ± 1 % of nominal current (I) setting
Trip time range 10 to 5000 ms
Trip time uncertainty (0.02 % setting + 0.25 ms)
Touch/line voltage Touch voltage range: 50 V

Touch voltage setting: in discrete points depending on setup trip current value

Touch series resistance: 0.02 Ω, 0.05 Ω, 0.10 Ω, 0.35 Ω, 0.50 Ω, 0.96 Ω, 1.7 Ω, 4.7 Ω, 9 Ω, 17 Ω, 47 Ω, 90 Ω, 170 Ω, 470 Ω, 900 Ω, 1700 Ω

Line voltage range: 250 V

Line voltage uncertainty: ± (5 % reading + 3 V)

User selectable nominal line voltage: 100 V/115 V/120 V/220 V/230 V/240 V/250 V or real

Post-trip delayed power restore mode: user selectable

RCD (Residual current device (for PATs)
Trip current range 0.5 X I to 5 X I Mode: 5 to 150 mA in 1 mA steps
Trip current measurement resolution 1 μA
Trip current measurement uncertainty Trip current: ± 1 % of nominal current (I) setting
Trip time range 10 to 5000 ms
Trip time uncertainty (0.02 % setting + 0.25 ms)
Line voltage Reconnection delay: 2.5 s
AC/DC voltage calibrator (5322A with VLC Option)
Range 0.03 V to 600 V, ac or dc (.5 – 1%)
Internal ranges AC mode: 0.3 V to 600 V

DC mode: 0.3 V to 600 V

Maximum withstand voltage HV terminal to COM terminal: 5000 V rms

V terminal to COM terminal:  1100 V rms

COM terminal to Protective Earth: 2200 V pk

AC/DC voltage range V (1100 V) Input:  0 V dc to ±1100 V dc 10 mV to 1100 V ac rms

HV (5000 V) Input: 0 Vdc to ±5000 Vdc 5 V to 5000 V ac rms

AC/DC current
Range 0 A to 20 A continuous, 20 A to 30 A for up to 5 minutes, ac rms or dc
AC power
Range 0 kVA ac to 33 kVA ac
Type Apparent, active, reactive
Phase indication Phase angle (φ), Power Factor (PF)
Phase uncertainty (dφ) ± 0.1 °
DC power
Range 0 to 33 kVA dc
Hipot ac voltage distortion measurement
Frequency range 45 Hz to 65 Hz
Number of harmonics 25
Hipot dc voltage ripple coefficient measurement
Voltage range 100 V dc to 5000 V dc
Ripple coefficient range 10 %
Flash test voltage measurement (using flash LC or flash V mode)
Class I Voltage range 2000 V ac rms
Uncertainty ± (0.3 % of reading + 6 V)
Class II Voltage range 3000 V ac rms
Uncertainty ± (1 % of reading value + 6 V)
Flash leakage current measurement (using flash LC mode)
Range 0 mA ac rms or dc to 300 mA ac rms or dc
Resolution 4.5 digits
Model Name Description
5322A Multifunction Electrical Tester Calibrator with 1.5 kV Resistance
5322A/5 Multifunction Electrical Tester Calibrator with 5 kV High Voltage Resistance Outputs
5322A/VLC Calibrator with 1.5 kV Resistance, 600 V Source, Voltage Loop Compensation
5322A/40 Calibrator with 1.5 kV Resistance and 40 kV Probe
5322A/5/VLC Calibrator with 5 kV Resistance, 600 V Source, Voltage Loop Compensation
5322A/VLC/40 Calibrator with 1.5 kV Resistance, 600 V Source, Voltage loop Compensation and 40 kV Probe
5322A/5/40 Calibrator with 5 kV Resistance, and 40 kV Probe
5322A/5/VLC/40 Calibrator with 5 kV Resistance, 600 V Source, Voltage Loop Compensation and 40 kV Probe

Accessories common to all models:

Accessory Description
5322A-LOAD High Voltage Resistor Load for 5322A
Y5320A Rack Mount Kit for 5322A – Sliding
5322A/CASE Transit Case for 5322A (without 5322A-LOAD)


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