HIOKI PQ3198 Power Quality Analyser

Designed and Manufactured in Japan to ensure High Quality Measurements

Capture Power Anomalies reliably with Simple Settings up to 6000 A AC and 2000A AC/DC

The PQ3198 is a three-phase power quality analyser that allows simultaneous power logging and can measure all parameters at once including:


  • Power, harmonics, and anomaly waveforms
  • Transient voltages
  • Voltage swells
  • Voltage dips
  • Interruptions
  • Frequency fluctuations
  • Inrush current
  • Harmonics
  • High-order harmonics (Supraharmonics)
  • Unbalance

Please enquire with your full requirements and we will tailor a suitable solution!



Read full description and specs


Hioki portable power meters and analysers are best in class power measuring instruments for measuring single to three-phase lines with a high degree of precision and accuracy.

The new and improved PQ3198 is a power quality analyser for monitoring and recording power supply anomalies, allowing their causes to be quickly investigated, and also for assessing power supply problems such as voltage drops, flicker, harmonics, and other electrical issues.

New features include the ability to drive current sensors straight from the PQA and enhanced recording capabilities.

Power quality monitoring, troubleshooting, and energy management

Logging and waveform recording

The PQ3198 is a three-phase power quality analyzer that allows simultaneous power logging and waveform capture of power quality anomalies (events).
Record up to 9999 power quality anomalies (events) and trend data up to 1 year.

Easy to Set up


Simply choose the preset that suits your application, and the instrument will automatically configure the recording parameters.

Wiring and connection guide

The instrument will perform an automatic wiring check and display the results.

Capture power anomalies reliably with simple settings

The PQ3198 can measure all parameters at once, including power,
harmonics, and anomaly waveforms.
Transient voltages
Voltage swells
Voltage dips
Frequency fluctuations
Inrush current
High-order harmonics (Supraharmonics)

Standard compliant

IEC 61000-4-30 Ed. 3 Class A compliant

The PQ3198 complies with the IEC 61000-4-30 Ed. 3 Class A standard.
As a result, it can perform standard-mandated measurement tasks such as gapless,
continuous calculation; detection of events such as swells, dips, and interruptions;
and time synchronization using GPS (optional).

Class A
Part of the IEC 61000-4-30 international standard, Class A defines power quality parameters, accuracy, and standard compliance to facilitate the comparison and discussion of measurement results from different instruments.

Certificate of Conformity IEC 61000-4-30 Edition 3

EN50160 judgment function (PQ ONE)

Evaluate whether data complies with the EN 50160 standard by analyzing it and generating a judgment based on voltage fluctuations during the trend interval. You can also customize the judgment criteria and parameters. The IEEE 519 TDD and GB Power Quality Statistics Report are also available.

Two-circuit measurement

Since the PQ3198’s fourth voltage channel is isolated from its first three voltage channels, the instrument can measure power and efficiency across two separate circuits.

Simple inverter measurement

The PQ3198 can measure the secondary side of inverters with a fundamental frequency of 40 to 70 Hz and a carrier frequency of up to 20 kHz.It can also measure the efficiency of DC/3-phase inverters.

Verify the quality of power supplied by an EV rapid charger

Verify the quality of the input (AC) and output (DC) of an EV rapid charger while simultaneously measuring power and efficiency between input and output.

  • *For more precise inverter measurement, HIOKI recommends the POWER ANALYZER

Other features

High-order harmonic (supraharmonic) measurement

The high-order harmonic (supraharmonic) component consists of noise components of several kHz or more caused by voltage and current waveform distortions when equipment power supplies use semiconductor devices. It includes various frequency components.
The PQ3198 can measure high-order harmonics (supraharmonics) components from 2 kHz to 80 kHz.

High-speed transient measurement

Transient voltage occurs due to phenomena such as lightning, breaker damage, or the closure of the circuit breaker or relay. It often occurs when there is a radical change in voltage or when the peak voltage is high.

The PQ3198 can measure transient voltages of up to 6000 V lasting as little as 0.5 μs (2 MS/s).

400 Hz line measurement

Power measurement for aviation systems and shipboard systems. In addition to 50/60 Hz, the PQ3198 can measure a line frequency of 400 Hz.

GPS time synchronization

The GPS OPTION PW9005 can be used to correct the instrument’s internal time to UTC standard time. This capability eliminates any time difference between instruments to allow analysis that preserves the simultaneity of phenomena measured with multiple instruments.

Intuitive software for data analysis and report creation

Analyze data and generate reports with HIOKI’s PQ ONE power quality analysis software

Group data from different measurement locations, times, and dates into folders and view them together.

Display detailed measurement data, including event statistics, an event list, and event graphs. Simply choose the parameters you need to output to the report.

Output CSV and PQDIF format files for the parameters you choose. PQDIF format files can also be uploaded to the software.

  • Statistics display function

    Show voltage, current, frequency, harmonics, flicker, and other metrics on the Statistics screen. View the maximum, minimum, and average value for measurement data context.

  • ITIC curve

    Automatically generate ITIC curve from recorded event. The curve estimates IT equipment’s resistance to power quality issues such voltage fluctuations.

Remote measurement

Remote Monitoring of a Site’s Power Supply Quality [GENNECT One SF4000]

Get measurement results from the job site in real-time, and display/save them on your PC.
Immediately and automatically transfer power supply quality event measurement files to your PC.
The power quality analyzer itself can be remotely controlled from your PC to change event conditions.

Learn more

Escape from your LAN! Realize genuinely remote measurement

Use GENNECT cloud, a cloud service operated by Hioki specifically for its GENNECT line of services, to realize genuinely remote measurement. Acquire measured values in real time, collect data, and control instruments via the cloud, anytime, from anywhere.

Learn more

Wide range of sensors for better quality measurement

Wide array of ranges to accommodate all applications

Use HIOKI sensors in an array of applications to measure equipment ranging from the secondary side of CTs to high-current wiring.
The CT7136 offers three ranges (50 A/500 A), as do HIOKI’s flexible sensors (50 A/500 A/5000 A).
Since the effective measurement range extends to 120% of the nominal range,
flexible sensors can be used to measure currents of up to 6000 A.

No need for an external power supply

AC/DC auto-zero current sensors measure DC current accurately over extended periods of time, eliminating the need to concern yourself with zero-point drift. Since sensor power is supplied by the instrument, there’s no need for an AC adapter when using AC/DC sensors or flexible sensors.

Automatic sensor detection to avoid erroneous measurement

Simply connect current sensors, touch “Sensor” on the screen, and the instrument will automatically detect sensor types and maximum current ranges.

Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)

Measurement line type Single-phase 2-wire, Single-phase 3-wire, Three-phase 3-wire or Three-phase 4-wire plus one extra input channel for voltage, current, power measurement (AC or DC measurement)
Voltage ranges Voltage measurement: 600.00 V rms
Transient measurement 6.0000 kV peak
Current ranges 500.00 mA to 5.0000 kA AC (depends on current sensor in use)
Power ranges 300.00 W to 3.0000 MW (determined automatically based on voltage and current range in use)
Basic accuracy Voltage: ±0.1% of nominal voltage
Current: ±0.1 % rdg. ±0.1 % f.s. + current sensor accuracy
Active power: ±0.2 % rdg. ±0.1 % f.s. + current sensor accuracy
Measurement items 1. Transient voltage : 2 MHz sampling
2. Frequency cycle : Calculated as one cycle, 40 to 70 Hz
3. Voltage (1/2) RMS: one cycle calculation refreshed every half cycle
Current (1/2) RMS: half-cycle calculation
4. Voltage swell, Voltage dips, Voltage interruption
5. Inrush current
6. Voltage waveform comparison
7. Instantaneous flicker value: As per IEC61000-4-15
8. 200 ms frequency: Calculated as 10 or 12 cycles,40 to 70 Hz
9. 10 sec frequency: Calculated as the whole-cycle time during the specified 10 s period, 40 to 70 Hz
10. Voltage waveform peak, Current waveform peak
11. Voltage, Current, Active power, Apparent power, Reactive power, Active energy, Reactive energy, Power factor, Displacement power factor, Voltage unbalance factor, Current unbalance factor, and efficiency
12. High-order harmonic* component (voltage/ current): 2 kHz to 80 kHz
13. Harmonic/ Harmonic phase angle (voltage/ current), Harmonic power: 0th to 50 th orders
14. Harmonic voltage-current phase angle: 1th to 50 th orders
15. Total harmonic distortion factor (voltage/ current)
16. Inter harmonic (voltage/ current): 0.5 th to 49.5 th order
17. K Factor (multiplication factor)
18. IEC Flicker, Δ V10 Flicker
19. Mains signaling voltage
Record Repeated ON: 1 year, Maximum recording event: 9999 × 366 days (up to 9999 events per day)
Repeated off: 35 days, maximum recording event: 9999 events
Interfaces SD/SDHC memory card, LAN (HTTP server function / FTP function), USB2.0 (for communication)
Display 6.5-inch TFT color LCD (640 × 480 dots)
Power supply AC adapter Z1002 (100 V to 240 V AC, 50/60 Hz, rated current 1.7 A), Battery Pack Z1003 (Continuous use: 180 minutes, Charging time: Max. 5 hr 30 m with AC adapter)
Dimensions and mass 300 mm (11.81 in)W × 211 mm (8.31 in)H × 68 mm (2.68 in)D, 2.6 kg (91.7 oz) (including Battery Pack Z1003)
Included accessories Instruction manual ×1, Measurement guide ×1, Voltage Cord L1000 ×1 set (Red/ Yellow/ Blue/ Gray each 1, Black 4, 3m (9.84ft) length, Alligator clip ×8), Spiral tube x20, Color clip, AC Adapter Z1002 ×1, Strap ×1, USB cable (1 m 3.28 ft length) ×1, Battery pack Z1003 ×1, SD Memory Card 2GB Z4001 ×1, Application software (PQ ONE) ×1

Additional information

Weight 3 kg
Dimensions 40 × 80 × 30 cm

Pickup at a NWI Office Location

If you do not want to pay for delivery or need to receive the item ASAP, you can pick the item up at one of our five (5) Australian offices. Just bear in mind not all offices will have everything in stock. Please call our 1300 669 162 number to see if your item is in stock at your local office.  

Interstate Deliveries:

Delivery costs are based off your location in Australia. NWI Group uses TNT Australia for all domestic deliveries.  

Estimated Delivery Timeframe:

If you opted to collect at a NWI office location, you will receive an email to inform you when your goods are ready for collection. If you opted for delivery, you would receive an email when the goods have been despatched to the couriers with details so you can track your order. We aim to despatch all orders within 1-2 business days. In the unusual event of a delay to the despatch of your order you will be contacted at the earliest opportunity. Once the order has been despatched the estimated delivery time is as follows:
  • Metro (Exclude: Hobart Metro) 1 -2 business day:
  • Hobart Metro 3-4 business days
  • Regional Areas: 3-4 business days:
  • Remote Areas: 6-9 business days
Please note that these delivery timeframes are estimates and are not guaranteed.  

Returns Policy

Changed your mind? No worries. You just need to get the product back to the NWI office it was shipped from (this is on your receipt) within 30 days, unused and in its original packaging and we will give you a refund (excluding delivery costs – terms and conditions apply) Special order items are excluded from this returns policy.

General Data Sheets

View Datasheet

HIOKI Power Quality Selection Guide

HIOKI Power Analyser Current Sensors

Gennect One Software

SF4000 gennectone E2-1YB

Why Choose NWI?

Since its inception in 1994, NWI Group has been committed to providing a service of quality in the sale, calibration and service of measuring equipment used in laboratories and manufacturing companies. Our strive for continuous improvement is part of our quality policy statement. A family-owned business, we have offices throughout Australia. Our product range covers fine precision measuring equipment to large industrial weighbridges, process instrumentation and automation software. Our calibration services for process and laboratories through our NATA accreditation guarantees our commitment to correct measurement and customer satisfaction.

Our Mission

It is our aim to provide our customers with levels of service that consistently exceed their expectations. This recognises that the customers ongoing, long-term relationship is crucial for business growth and development.

Our Vision

Provide individuals and companies with high quality and reliable measuring equipment, technology, and calibration services now and for future generations.


NATA Accreditation for:
  • Mass & Weighing
  • Volume & Density
  • Electrical Metrology
  • Time & Frequency Metrology
  • Temperature & Humidity Metrology
NMI Trade Measurement Servicing Licence for Weighing & Mass.



Unit 1, 88 Magowar Rd, Girraween, 2145


11/5 Agosta Drive, Laverton North, 3026


3A Wilford Ave, Underdale, 5032


2D/919 Nudgee Road Banyo QLD 4014


1/19 Industry St Malaga WA 6090

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Phone: 1300 669 162