Extech PQ3470
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$1.760
The Extech PQ3470 is a powerful 3-phase power quality analyzer designed for comprehensive monitoring and diagnostics of electrical systems. With support for up to 3000A AC, 600V AC, and detailed harmonic analysis up to the 50th order, it is ideal for energy audits, load studies, and identifying power quality issues in industrial and commercial environments.
Extech PQ3470 Power Quality Analyzer – Type (Power Quality): 3 Phase, Maximum Current AC: 3000 A, Maximum Voltage AC: 600 V.
The Extech PQ3470 Power Quality Analyzer offers a complete solution for diagnosing complex power quality issues in 3-phase systems. It supports simultaneous measurements of voltage, current, power (kW/kVA/kVAR), power factor, harmonics, and energy consumption. The large backlit graphical LCD ensures easy visibility in all lighting conditions, while the built-in SD card simplifies data logging and transfer. Flexible current probe options (sold separately) and a high transformer ratio make it adaptable for both low- and high-power systems.
This model is especially useful for preventive maintenance teams, facility managers, and electrical contractors looking to maintain compliance and optimize performance. For long-term success, pair it with a routine maintenance schedule—see our article How to Build a Calibration Schedule That Ensures Compliance to learn more.
Key Features:
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Comprehensive Power Analysis: Monitors up to 35 power parameters including voltage (L-L, L-N), current, kW, kVA, kVAR, PF, energy consumption, phase angle, and more.
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High Accuracy: ±0.5% voltage and current accuracy; ±1.0% for power readings.
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Harmonics & THD: On-screen harmonic display up to the 50th order with simultaneous waveform view and THD analysis.
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Flexible Clamp Support: Compatible with 200A, 1200A clamps, and 3000A flexible probes (sold separately).
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User-Configurable CT/PT Ratios: Supports CT ratios from 1 to 600 and PT ratios from 1 to 1000 for a wide range of applications.
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Real-Time Waveform Capture: View real-time voltage and current waveforms with harmonic overlays.
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Large Sun-Readable Display: Backlit graphical LCD for high visibility in all lighting conditions.
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Easy Data Export: Save logs to SD card and transfer directly to Excel for analysis.
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Compact & Portable: Lightweight yet rugged design, ideal for field use.
Why Choose the Extech PQ3470?
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Trusted performance in 3-phase systems
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Excellent value with high-end diagnostic capabilities
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Ideal for facility energy audits and troubleshooting power anomalies
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Designed for ease of use in the field
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SD data logging—no proprietary software required
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Factory-calibrated for immediate deployment
What’s Included:
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Extech PQ3470 Analyzer
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4 Voltage Leads with Alligator Clips
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8 × AA Batteries
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SD Memory Card (2GB)
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Universal AC Adapter (100–240V)
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Hard Carrying Case
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User Manual
Clamp probes sold separately
Technical Specifications:
| Parameter | Range / Details |
|---|---|
| Voltage (True RMS) | Up to 600V AC ±0.5% |
| Current (AC) | Up to 3000A (w/ optional probes) ±0.5% |
| Power Factor | 0.00 to 1.00 ±0.04 |
| Frequency | 45Hz – 65Hz ±0.1Hz |
| Harmonics | 1st – 50th order ±2% (1–20), ±4% (21–31) |
| Energy Measurements | kWh, kVAh, kVARh ±2% |
| Phase Angle | -180° to +180° ±1° |
| Crest Factor | 1.00 – 99.99 ±5% |
| Data Logging Capacity | Up to 30,000 readings (2GB SD Card) |
| Display | Dot-matrix backlit graphical LCD |
| Dimensions / Weight | 225 × 125 × 64 mm / 1.01 kg |
| CAT Rating | CAT III 600V |
| Compliance | CE, UL |
| Warranty | 1 Year |
Applications:
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Power quality audits and system diagnostics
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Energy consumption monitoring and load balancing
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Harmonic distortion analysis in industrial facilities
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Troubleshooting voltage imbalance and equipment failures
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