FMF
Everfine PF9811 Digital Power Meter Harmonic Analyzer 3.0V-600V 5mA-20A
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Everfine PF9811 Digital Power Meter Harmonic Analyzer
The Everfine PF9811 is a digital power meter harmonic model for voltage, current, power, power factor, frequency, THD, and crest factor measurement. It supports THD analysis and 2nd-50th sub-harmonic measurement of voltage and current, and the waveform and frequency spectrum can be observed on a computer.
Key Features
- Four-display measurement for V, A, W, and PF / Hz / THD / CF.
- Voltage measurement range: 3.0V-600V.
- PF9811 current measurement range: 5mA-20A.
- Automatic range switching.
- Power factor range: -1.000 to +1.000.
- AC frequency range: 45Hz-65Hz, with 5kHz band listed.
- THD and 2nd-50th sub-harmonic analysis for voltage and current.
- RS-232 and RS485 interfaces listed as optional communication interfaces.
Specifications
| Model | PF9811 |
| Product Type | Digital power meter / harmonic analyzer |
| Display Items | V, A, W, PF / Hz / THD / CF |
| Voltage Range | 3.0V-600V |
| Current Range | 5mA-20A |
| Range Switch | Auto |
| Power Factor Range | -1.000 to +1.000 |
| Frequency | AC 45Hz-65Hz, band 5kHz |
| Accuracy | (0.4% reading + 0.1% range + 1 digit) |
| Harmonic Analysis | THD and 2nd-50th sub-harmonic of voltage and current |
| Communication | RS-232, RS485 interface optional |
| SKU | FMF-PF9811-22745 |
User Manual
User manual link: https://drive.google.com/file/d/1oVXPyfvHzOXN_LoH6nwkTLGJIwgJ0P7o/view?usp=sharing
FAQ
What does the PF9811 measure?
It measures voltage, current, power, power factor, frequency, THD, and crest factor.
What voltage and current ranges are listed?
The listed voltage range is 3.0V-600V, and the PF9811 current range is 5mA-20A.
Does it support harmonic analysis?
Yes. It supports THD and 2nd-50th sub-harmonic measurement of voltage and current.
Can waveform and frequency spectrum be viewed on a computer?
Yes. The product information states that the actual waveform and frequency spectrogram can be observed on the computer.




