Multi-functional Distortion Meter | Digital Distortion Meter | Digital Distortion Measuring Instrument | Distortion Meter | Distortion Measuring Instrument | Low Distortion Meter | Low Distortion Measuring Instrument | Signal Distortion Measuring Instrument | Signal Distortion Meter

I. Overview
    HGSZ8137The Type Low Distortion Measurement Instrument is a new, fully automatic digital instrument launched by Huaguang High-Tech. It has been redesigned to meet the urgent need for rapid measurements in current scientific research, production, metrological testing, and teaching. Distortion measurement reaches0.005%It is a high-performance/Highly sophisticated instruments at a premium price.

The voltage, distortion, and frequency of the signal under test are all concentrated on a single module.LCDLCD display with automatic display; true RMS detection; voltage measurement available on input voltage300μV～300VFrequency10Hz～750kHzInternally, it features fully automatic measurement; distortion measurement is available for input voltage50mV～300VFrequency10Hz～150kHzIntrinsic full-automatic measurement, distortion measurement range of100   %～0.005 %This instrument features the ability to measure balanced and unbalanced input voltages and distortion, as well as measurementS/NSignal-to-Noise RatioSINADFunction of (Signal-to-Noise Ratio). Amplitude display unit can beV、mV、dBDistortion display unit can be selected%OrdB，S/N、SINADUnit of DisplaydBThe instrument is equipped with400HzQualcomm30kHzAnd80kHzLow-pass filter, user-friendly.

This instrument is a new-generation intelligent device with multiple functions, including fully automatic measurement of signal voltage, frequency, and signal distortion. It is also a fully digital, automatic, and multifunctional intelligent instrument that represents a high level of domestic technology in the field of signal distortion measurement.
II. Key Features

1．Features full-automatic distortion measurement and internal automatic calibration,Automatic Tracking Filter

2．Measurable lower distortion ≥0.005%

3．Established 30kHz，80kHzLow-pass filter, which reduces the impact of wideband non-harmonic (e.g., noise) influences, enabling more accurate measurement of harmonic distortion in the low-frequency signal range.

4．Increased measurement accuracy/Mixed ratioSINAD) And Trust/Signal-to-Noise RatioS/NThe functionality.

5Enhanced the voltage range of the input signal when measuring signal distortion.50 mV～300V。

6．Features the function to test balanced or unbalanced signals.

7Added frequency counting function, the frequency of the measured signal can be directly determined.LCDLCD display.

8The oscilloscope output monitoring jack has been retained for users to observe the waveform of the measured signal and the overall filter tuning state during small distortion signal measurements.

9Attenuation network filter feature available90dB～100dB。

10．Utilizes a high-precision true RMS detector for demodulation, effectively reducing demodulation errors.
Section 3: Basic Work Characteristic Indicators

1Distortion Measurement

1Frequency Range: Unbalanced:10Hz～150kHz

Flat Heng:10Hz～100kHz

2Input Signal Voltage Range:50mV～300V

3Distortion measurement range:

Input Voltage300mV～300V：

100Hz～100kHz：100 %～0.01%，20Hz～100Hz：100 %～0.03%

100kHz～150kHz：100 %～0.03%

Input Voltage100mV～300mV： 20Hz～150kHz：100 %～0.05%

4Accuracy:20Hz～20kHz  ± 0.5dB

10Hz～150kHz ± 1dB

Distortion0.03%And below,Input signal50-300mV:± 2dB

5Residual distortion and noise >1VrmsDuring input):

20Hz～20kHz：≤0.0055% ；10Hz～50kHz：≤0.0092%

50kHz～110kHz：≤0.0125% ；100kHz～150kHz：≤0.016%  

6）%Display Resolution:10%～100 %： 0.1%

1%～9.99 %： 0.01%

0.1%～0.999 %： 0.001%

                  0.1%Below:0.0001%

7）dBDisplay Resolution:0.01dB

2．SINADMeasurement:

1Frequency Range: Unbalanced:10Hz～150kHz

Flat Heng:10Hz～100kHz

2）SINADMeasurement Range:10dB～80dB (Other indicators are the same as for distortion measurement)

3．ACVoltage Measurement:

1Voltage Measurement Range:300μV～300V

2Frequency Range: Unbalanced:10Hz～750kHz

Flat Heng:10Hz～300kHz

3) )1kHzBasis frequency response:

Imbalance:20Hz～20kHz ≤±0.5dB

10Hz～100kHz ≤±1dB

100kHz～750kHz ≤±1.5dB

Balance: 10Hz～100kHz ≤± 1dB

        100kHz～300kHz ≤± 1.5dB

4Voltage Gauge Accuracy:(Please provide the Chinese content you would like translated into American English.1kHzBased on)±3%Self-noise ≤50μV

5RMS waveform error of voltmeter: ≤3%Input Signal Waveform Peak Factor ≤3Please provide the Chinese content to be translated.

6Display Resolution:100VAbove:100mV      10VAbove:10mV

1VAbove:1mV      100mVAbove:0.1mV

10mVAbove:0.01mV     1mVAbove:0.001mV

1mVBelow:0.0001mV

4．S/NMeasurement:

1Frequency Range:10Hz ～ 750kHz

2）S/NMeasurement Range:0 ～ 99.99dB

5Frequency Measurement:

1Voltage measurement frequency range:10Hz～750kHzInput Signal ≥5mV

2Frequency range for distortion measurement:10Hz～150kHzInput Signal ≥50mV

3Accuracy:0.1%±2Please provide the Chinese content for translation.

6，This instrument is defined as:0dB=1Vrms(Measure power when0dBm=0.7745V,Please provide the Chinese content to be translated.1mWPlease provide the Chinese content to be translated.600ΩUp the power, so only need to be at presentdBReading plus2.22As isdBmValue)，dBDisplay Resolution:0.01dB。

7Input Impedance:100kΩ//100pF(Balanced, Unbalanced)

8Power Voltage:220V ± 10%，50Hz± 2Hz

9Power Consumption: Approximately20VA

10The instrument operates under environmental conditions of Group II.

11Volume:350(W)mm X 120(H)mm X 340(D)mm

12Weight: Approximately5kg