The UTE9811+ Smart Digital Power Meter sets a new standard for harmonic analysis in power measurement instrumentation. Engineered for professionals who require detailed power quality assessment, this advanced meter combines comprehensive harmonic measurement capabilities with exceptional measurement accuracy. Using phase-locked loop (PLL) synchronization and innovative digital signal processing algorithms, the UTE9811+ delivers harmonic analysis up to the 50th order with industry-leading precision and update speeds as fast as 0.1 seconds.
The instrument's intuitive multi-window display provides simultaneous visualization of voltage, current, power, and harmonic components, enabling engineers and technicians to quickly identify power quality issues and their sources. With its ability to measure voltage crest ratio and current crest ratio, the UTE9811+ offers powerful tools for evaluating non-linear loads and analyzing distorted waveforms that can affect equipment reliability and efficiency. Perfect for power quality audits, equipment validation, and troubleshooting complex electrical systems, the UTE9811+ delivers professional-grade performance in both laboratory and field environments.
The UTE9811+ employs sophisticated phase-locked loop (PLL) synchronization combined with innovative digital signal processing algorithms to deliver exceptional harmonic analysis capabilities. This technology enables accurate measurement of harmonic components up to the 50th order with update rates as fast as 0.1 seconds. The high-speed processing dramatically improves test efficiency compared to conventional instruments, allowing engineers to quickly identify and characterize harmonic distortion in electrical systems.
Unique to the UTE9811+ is its ability to measure both voltage and current crest ratios, providing critical insights into waveform distortion. Crest ratio analysis helps identify potential issues with non-linear loads, switching power supplies, and other sources of harmonics that can affect power quality. This capability is invaluable for diagnosing equipment performance problems, preventing premature component failure, and ensuring compliance with power quality standards.
Beyond harmonic analysis, the UTE9811+ delivers precise measurements of voltage, current, active power, power factor, and frequency. This comprehensive approach to power quality assessment enables thorough evaluation of electrical system performance. The instrument's multi-window display presents these parameters simultaneously, providing a complete picture of power characteristics at a glance and streamlining the analysis process.
The UTE9811+ seamlessly integrates with its companion PC software to provide powerful visualization tools for harmonic analysis. The software generates detailed harmonic spectrum displays, trend analysis, and comprehensive reports that document power quality metrics. Data can be exported in CSV format for further analysis or integration with other systems, making it easy to share findings and maintain detailed records of power quality assessments.
The UTE9811+ is the ideal instrument for conducting comprehensive power quality audits in industrial facilities. Its advanced harmonic analysis capabilities help identify sources of harmonic distortion that can cause equipment overheating, nuisance tripping, and reduced efficiency. By pinpointing harmonic issues, engineers can implement appropriate mitigation strategies, improving overall system reliability and extending equipment life.
For lighting designers and manufacturers, the UTE9811+ provides detailed analysis of LED driver harmonic performance. Its ability to measure current harmonics with high precision helps ensure compliance with relevant standards and prevents harmonic-related issues in lighting installations. The instrument's crest ratio measurement capability is particularly valuable for evaluating the impact of LED loads on power systems and optimizing driver designs.
The UTE9811+ excels in analyzing the harmonic distortion generated by variable frequency drives (VFDs) and other power electronic equipment. Engineers can accurately assess the harmonic content of VFD current draw and implement appropriate filtering solutions. This analysis is critical for maintaining power quality in industrial environments where VFDs are increasingly common and can significantly impact system performance.
When integrating renewable energy sources like solar and wind power, the UTE9811+ helps evaluate the harmonic impact of inverters on the electrical system. Its comprehensive harmonic analysis capabilities ensure that these installations meet grid connection requirements and do not introduce power quality issues. The instrument provides the data needed to specify harmonic filters and other mitigation measures when required.
| Parameter | Specification |
|---|---|
| Display | VA broken code display, 5 digits |
| Data Update Rate | 0.1s - 5s (adjustable) |
| Measuring Objects | V, A, W, PF/Hz, THD/CF |
| Measuring Mode | AC |
| Voltage Range | 3.0V - 600V |
| Current Range | 5.0mA - 20A |
| Voltage Accuracy | 40Hz≤f≤75Hz: ±(0.4% reading + 0.1% range + 1 character) |
| Current Accuracy | 40Hz≤f≤75Hz: ±(0.4% reading + 0.1% range + 1 character) |
| Power Range | 1W - 12kW |
| Power Accuracy | 40Hz≤f≤75Hz: ±(0.4% reading + 0.1% range + 1 character) |
| Power Factor Range | 0.001 - 1.000 |
| Harmonic Measurement | 1 - 50 times |
| Harmonic Accuracy | Voltage: ±0.2% at 50th harmonic Current: ±0.007% at 50th harmonic |
| Crest Factor Measurement | Voltage CF, Current CF |
| Frequency Range | 40Hz - 70Hz (amplitude > 10% of range) |
| Input Impedance | Voltage about 2 MΩ, Current less than 0.02Ω |
| Maximum Allowed Input | Voltage 700V, Current 24A 1000V, 40A (1 min) |
| Interface | RS232, RS485 |
| Baud Rate | 4800, 9600, 19.2K, 38.4K, 57.6K, 115.2K, (default 9600) |
| Power Source | AC 100V - 240V, Frequency 50/60Hz |
| Operating Environment | 18°C - 28°C, 20% - 75%RH, Altitude ≤2000 meters |
| Size | 214mm × 88mm × 340mm |
| Weight | 3.2kg |
| Model | Description | Length | Specification |
|---|---|---|---|
| UTE-L10A | 10A three-pronged plug to banana head connect wire | 1.2m | 250V/10A |
| UTE-L16A | 16A three-pronged plug to banana head connect wire | 1.2m | 250V/16A |
| UTE-L16C | 16A connect wire with alligator clip | 1.2m | 250V/16A |
| Feature | UTE9802+ | UTE9806+ | UTE9811+ |
|---|---|---|---|
| Display | VA broken code, 5 digits | VA broken code, 5 digits, four windows | VA broken code, 5 digits |
| Measuring Modes | AC/DC, AC+DC (T-RMS) | V,A,VA,PF,Hz | V,A,W,PF/Hz,THD/CF |
| Voltage Range | 3.0V - 700V | 0.1V - 600V | 3.0V - 600V |
| Current Range | 0.5mA - 20A | 0.05mA - 12A | 5.0mA - 20A |
| Special Features | AC/DC measurement | Apparent power measurement, Low current measurement | Harmonic measurement (up to 50 times), Crest ratio |
| Limit Setting Parameters | Current and Power | Voltage, Current, Active Power, Apparent Power, Power Factor | Current and Power |
| Applications | AC/DC charging pile, Power battery, Home appliance testing | Overall power consumption | Harmonic analysis |
The UTE9811+ combines phase-locked loop (PLL) synchronization with innovative digital signal processing algorithms to deliver harmonic analysis up to the 50th order with exceptional accuracy. Its rapid update rate of 0.1 seconds is significantly faster than conventional instruments, allowing real-time monitoring of harmonic components. Comparative testing has shown the UTE9811+ provides higher precision in harmonic measurements than comparable instruments, particularly at higher harmonic orders.
Crest ratio (the ratio of peak value to RMS value) is a key indicator of waveform distortion. In ideal sinusoidal waveforms, the crest ratio equals 1.414 (√2). Deviations from this value indicate distortion that can cause equipment issues like overheating, nuisance tripping, and reduced efficiency. The UTE9811+'s ability to measure both voltage and current crest ratios helps identify non-linear loads and other sources of harmonics that affect power quality, enabling targeted mitigation strategies.
Yes, the UTE9811+ is well-suited for verifying compliance with power quality standards that specify harmonic limits, such as IEEE 519 and IEC 61000-3-2. Its comprehensive harmonic analysis capabilities provide the detailed measurements required to assess compliance with these standards. The instrument's PC software further enhances this capability by generating detailed reports that document harmonic content for compliance documentation.
Harmonic distortion can cause numerous problems in electrical systems, including overheating of transformers and motors, nuisance tripping of circuit breakers, reduced power factor, and interference with sensitive electronic equipment. By accurately measuring harmonic content with the UTE9811+, engineers can identify harmonic sources, evaluate their impact, and implement appropriate mitigation measures like harmonic filters or system redesigns before equipment damage occurs.
Phase-locked loop (PLL) synchronization enables the UTE9811+ to precisely lock onto the fundamental frequency of the measured signal, even when it deviates from nominal values or fluctuates. This precise synchronization ensures accurate harmonic analysis by maintaining the correct phase relationship between the fundamental and harmonic components. The result is more reliable harmonic measurements, particularly in systems with frequency variations or significant distortion.
With its rapid update rate of 0.1 seconds, the UTE9811+ can capture relatively fast changes in harmonic content, making it suitable for analyzing semi-transient harmonic events. While it's not designed for capturing microsecond-level transients like dedicated power quality analyzers, its sampling rate is sufficient for most industrial applications involving harmonic fluctuations. The instrument's data logging capabilities also allow for extended monitoring to capture intermittent harmonic issues.
The UTE9811+ Smart Digital Power Meter comes with a comprehensive 3-year warranty covering manufacturing defects and component failures under normal use conditions. UNI-T provides dedicated technical support through our experienced team of application engineers.
The UTE9811+ Smart Digital Power Meter delivers the advanced harmonic analysis capabilities that power quality professionals demand. With industry-leading measurement accuracy, comprehensive harmonic assessment up to the 50th order, and intuitive operation, this instrument provides the insights needed to identify and resolve complex power quality issues. Order now to experience the difference that professional-grade harmonic analysis can make in your electrical testing applications.
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