Hioki Power Quality Analyzers

Multi-channel power quality analyzers for investigating power anomalies, harmonics and compliance with IEC 61000-4-30.

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Shop Hioki Power Quality Analyzers

PQ3198

Hioki PQ3198 Power Quality Analyzer

High-end power quality analyzer, IEC 61000-4-30 Ed.2/3 Class A compliant. Captures transie...

Price on Request

PQ3100

Hioki PQ3100 Power Quality Analyzer

Mid-range power quality analyzer, IEC 61000-4-30 Class S compliant. Captures voltage swell...

Price on Request

What is a Power Quality Analyzer?

A power quality analyzer is a multi-channel instrument that continuously monitors and records voltage, current and power across multiple phases, capturing anomalies like transient voltage spikes, swells, dips, interruptions, frequency fluctuations and harmonic distortion. Unlike a simple power meter that shows a live power reading, a power quality analyzer is built to investigate what went wrong and when — recording detailed event waveforms alongside long-term trend data.

Why this matters: Equipment failures, nuisance trips and process disruptions are often caused by power quality problems that a simple voltage check will never reveal — a brief transient, a harmonic-heavy load elsewhere on the same supply, or a voltage sag lasting a fraction of a second. Investigating these root causes requires continuous, standards-compliant recording.

Key advantage: Identifying the actual cause of a recurring equipment fault can prevent repeated failures that each cost far more than the investigation itself.

Why Choose Hioki Power Quality Analyzers?

The PQ3198 and PQ3100 give field engineers standards-compliant power quality investigation:

1. IEC 61000-4-30 Compliance

The PQ3198 complies with Class A (the highest standard, for legally defensible and cross-instrument-comparable measurement); the PQ3100 complies with Class S, suited to general troubleshooting at a more accessible price point.

2. Comprehensive Anomaly Capture

Captures transient voltages (up to 6000V on the PQ3198), voltage swells, dips, interruptions, frequency fluctuations, and harmonics including high-order supraharmonics up to 80kHz — the full range of power quality problems in one instrument.

3. Continuous Gapless Recording

Records trend data continuously alongside detailed event waveforms whenever an anomaly occurs, so you have both the long-term pattern and the precise detail of every event — up to 9,999 recorded events and a year of trend data.

4. External Current Sensors for Any Application

Connects to Hioki's range of clamp-on and flexible current sensors, letting the same analyzer scale from small circuits to heavy industrial feeders depending on the sensor selected.

5. SD Card Logging & PQ ONE Software

Records to SD memory card for extended unattended monitoring, with PQ ONE analytical software for reviewing, comparing against standards compliance, and reporting on captured data.

Comparing the PQ3198 and PQ3100

Both share the same core measurement architecture — the PQ3198 is the higher-precision flagship, the PQ3100 the more accessible mid-range option:

Model	Best For	Harmonics	IEC 61000-4-30 Class	Max Transient Voltage
PQ3198	High-precision investigation, legally defensible compliance measurement	Up to 80kHz (supraharmonics)	Class A (flagship)	6000V (0.5μs resolution)
PQ3100	General field troubleshooting at a more accessible price point	Standard harmonic analysis	Class S (mid-range)	2200Vpeak

Power Quality Analyzer Applications in Indian Industry

Power quality investigation supports these use cases:

Investigating Equipment Failure Causes

Identify the root cause of nuisance trips, equipment malfunctions and process disruptions that a simple voltage check cannot explain, including issues where one device on a shared supply affects another.

Solar PV Power Quality Verification

Check power conditioner output voltage fluctuations, flicker, transient voltages, and harmonic voltage/current components at the grid interconnection point of a solar installation.

EV Charging Infrastructure Power Quality

Verify the power quality delivered by EV rapid chargers; the PQ3198's isolated fourth voltage channel allows simultaneous power and efficiency measurement across two separate circuits.

Harmonic Troubleshooting

Identify harmonic and supraharmonic distortion from VFDs, inverters and other non-linear loads, including higher-frequency components increasingly common as inverter-based equipment becomes widespread.

Grid Interconnection Monitoring

Monitor voltage, frequency and power quality at the point of grid interconnection for compliance verification and ongoing quality assessment.

Standards Compliance Auditing

Perform IEC 61000-4-30 compliant measurement for formal power quality compliance documentation, using Class A (PQ3198) where legally defensible, cross-instrument-comparable results are required.

Frequently Asked Questions

What is the difference between the PQ3198 and PQ3100?

Both share the same core measurement platform and applications, but the PQ3198 is the higher-precision flagship model — IEC 61000-4-30 Class A compliant, capturing transients up to 6000V, and including an isolated fourth voltage channel for two-circuit measurement. The PQ3100 is Class S compliant, with a lower maximum transient voltage rating, at a more accessible price point for general field troubleshooting.

What does IEC 61000-4-30 Class A vs Class S mean?

IEC 61000-4-30 defines how power quality parameters should be measured so results are comparable across different instruments and manufacturers. Class A is the highest-precision tier, used where measurement results may need to be legally defensible or compared against another Class A instrument's results. Class S is a lower-precision tier suited to general power quality assessment and troubleshooting.

Do I need to buy a current sensor separately?

Yes. Neither the PQ3198 nor PQ3100 includes a current sensor — you select one appropriate to the current range and physical access of your measurement point. We stock the CT9667 AC flexible clamp-on current sensor as a standard option, along with the L1000-05 voltage cord set needed to connect to voltage measurement points.

What is the difference between a power quality analyzer and a power meter like the CM3286-50?

The CM3286-50 clamp power meter gives you a real-time reading of power, power factor and energy at a single point in time — ideal for spot-checks and audits. A power quality analyzer like the PQ3198/PQ3100 continuously records over extended periods, captures detailed event waveforms when anomalies occur, and complies with IEC 61000-4-30 for standards-based investigation — the right tool when you need to find out what happened and why, not just what the reading is right now.

How long can these analyzers record unattended?

Both models record continuously to SD memory card (2GB or 8GB), capturing up to 9,999 individual power quality events and up to a year of trend data, making them suitable for extended unattended monitoring rather than just spot measurements.

Can I monitor multiple locations at once?

Each analyzer measures one location, but you can pair a compatible data logger (supporting LR8410 Link) via Bluetooth to aggregate measurement data from multiple analyzers deployed at different locations into a single logger.

Buy Hioki Power Quality Analyzers in India

Industrial Supply Syndicate is an authorized independent reseller of Hioki power quality analyzers in India. We stock the complete range and ship pan India with GST invoice. For bulk orders, institutional procurement, and tender requirements, please contact us for special pricing.