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HF-PQ-204 Portable Power Quality Meter
This portable power quality meter delivers IEC Class A measurement precision. It accurately detects harmonics, interharmonics, flicker, voltage fluctuation and three-phase unbalance. Compact and lightweight, it is designed for on-site grid troubleshooting, acceptance tests of substations and renewable energy power stations.
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HF-PQ-204 Power Quality Tester is widely used in power transmission & distribution, power electronics and motor drive sectors:
- Analyze AC power quality delivered from public grids to end users
- Adopt wavelet transform to measure non-stationary time-varying signals
- Evaluate grid disturbances caused by all types of electrical loads
- Dynamically monitor power equipment commissioning and operation for troubleshooting
- Diagnose faults such as transformer overheating, motor burnout and breaker misoperation
- Test reactive power compensation & filter devices and assess their performance
Instrument Features
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Safe & Reliable
2000V high-voltage isolation module for voltage input, AC current clamps for current input isolate signals fully. Strong anti-interference capability guarantees secure field use.
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Portable & User-friendly
Compact size: 320×280×135 mm, weight: 3.5kg, easy to carry alone. Built-in lithium battery enables 8 hours continuous offline operation. -
High Precision
Meets GB Class B standards. Uses exact reference algorithms, 16-bit ADC synchronous sampling at 12.8kHz for harmonics and three-phase unbalance measurement. -
Powerful Software Performance
DSP+ARM+CPLD core ensures fast calculation, suitable for complex testing and data processing. -
USB Communication Port
Supports data export to USB flash drives.
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Full Range of Measurable Parameters
Covers all national standard PQ indicators: frequency, harmonics (2~63rd order), voltage unbalance, flicker, RMS values, power parameters, voltage transients, power factor, etc. -
Real-time Harmonic Overlimit Alert
Instantly judges if voltage & current harmonic values exceed specified limits. -
Supporting Background Analysis Software
Dz200 Pro management software works on Windows legacy systems for post-data analysis; see the software manual for details.
Test Range & Technical Specifications
| Measurement Item | Detailed Technical Parameters |
|---|---|
| Frequency Measurement | Range: 45～55 Hz (center frequency: 50 Hz) Precondition: Fundamental component ≥ 80% F.S. Max error: ≤ 0.02 Hz |
| Input Voltage Range | 20 V ~ 900 V |
| Input Current Range | Standard: 0.06% ~ 6% Optional custom ranges: 25%, 200%, 500%, 1000%, 2000%, 3000% |
| Fundamental Voltage Amplitude Error | ≤ 0.5% F.S. |
| Fundamental Current Amplitude Error | ≤ 1% F.S. |
| Phase Difference Error (Fundamental Voltage & Current) | ≤ 0.5° |
| Harmonic Voltage Ratio Measurement Error | ≤ 0.1% |
| Harmonic Current Ratio Measurement Error | ≤ 0.2% |
| Three-Phase Voltage Unbalance Degree Error | ≤ 0.2% |
| Voltage Deviation Error | ≤ 0.2% |
| Power Measurement Deviation | ≤ 0.5% |
Packing List
| No. | Accessories Name | Quantity & Description |
|---|---|---|
| 1 | Main Instrument Unit | 1 set |
| 2 | Alligator Clips | 8 pcs (4 large + 4 small; 2 pcs each for yellow, green, red, black) |
| 3 | USB Flash Drive | 1 pc (for measured data storage) |
| 4 | Power Adapter | 1 pc (for device charging) |
| 5 | Current Clamps | 3 pcs (for current measurement, one for Phase A, Phase B and Phase C respectively) |
| 6 | Voltage Test Cable | 1 piece (4-core cable: yellow, green, red, black for voltage testing) |
FAQ | Portable Power Quality Meter
Q1: What is a portable power quality meter used for?
A: This portable power quality meter is applied for on-site field testing. It measures harmonics, voltage flicker, three-phase unbalance and other grid indicators to inspect power quality for substations, industrial plants and renewable energy stations.
Q2: What accuracy class does this portable power quality meter reach?
A: It complies with GB Class B standard, adopting 16-bit ADC synchronous sampling technology to ensure stable and precise measurement of all power quality parameters.
Q3: How long can the device work continuously without external power supply?
A: Built-in high-performance lithium battery supports up to 8 hours of continuous offline operation, fully meeting all-day outdoor field testing demands.
Q4: What accessories come standard with the portable power quality meter?
A: The full set includes main unit, alligator clips, current clamps, 4-core voltage test leads, USB flash drive and power adapter for immediate use after unpacking.
Q5: Can I export recorded power quality test data?
A: Yes. You can save all measured data to a USB flash drive, then analyze and process data via the supporting Dz200 Pro background analysis software on Windows systems.
Q6: Is the measurement current range customizable?
A: Sure. Besides the standard 0.06%~6% range, multiple optional current ranges (200%, 500%, 1000%, 3000%, etc.) are available upon customer request.
Q7: What power quality parameters can this meter detect?
A: It covers frequency, 2~63rd harmonics, voltage deviation, flicker, three-phase unbalance, active/reactive power, power factor, voltage transient recording and all mandatory national standard PQ indicators.
Q8: What are the advantages compared with fixed online power quality monitors?
A: Compact size (3.5kg lightweight), portable for single-person carrying. It is perfect for temporary spot checks, equipment troubleshooting and grid-connected acceptance tests on different power sites.
Q9: Does the meter support real-time harmonic over-limit judgment?
A: Yes. It can instantly judge whether voltage and current harmonic values exceed the standard threshold and remind users during testing.
Q10: What software is matched for post-data analysis?
A: Equipped with Dz200 Pro management software, compatible with Windows classic operating systems for detailed data viewing, report generation and power quality evaluation.
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