Harmonic Distortion Analyzer / 10Hz~1kHz AC Power Harmonic Distortion Analyer

Description:

HDM210 is a harmonic distortion meter, which mainly detects the ratio of the fundamental wave to the 3rd harmonic of the sine wave signal. Most harmonic problems are caused by the 3rd harmonic. Since the 3rd harmonic is the second highest energy of the fundamental component. Therefore, all we are concerned with is finding the 3rd harmonic distortion using Equation 1.

 

  THD = V3/V1*100% (1)

 

Notes: V1: Fundamental; V3: 3rd Harmonic; THD: Harmonic Distortion;

 

2. Product application:

● Harmonic distortion meter;

● Frequency meter;

3. Technical parameters:

              No. Item                           Parameter                  Unit                        Remarks

1 Measurement frequency range 10～1000                    Hz

2 Measuring voltage range            1～10                        VDC   maximum amplitude 10.0Vpp AC signal

3 Measurement distortion            0.1～100.0                    %

4 Working voltage                          7～12                         VDC

5 Operating current                       <50                             mA

6 Dimensions 56*45*20 mm length X width X height

 

 

 4. Interface display and operation instructions:

(1) Button description:

SEL: select monitoring parameters;

 

 

LCD display font: Notes:

1. 1st= 0.0 display fundamental value;

2. 3st= 0.0 displays the 3rd harmonic value;

3. THD= 0.0% Display harmonic distortion

4. Fre= 0Hz display measurement frequency

 

 

Potentiometer RW1 function: Adjust the moderate voltage value signal to the meter for measurement.

Light Emitting Diode LED: Lights up when the input measured voltage value is too high.

 

5. Wiring

P1 wiring definition:

No. Symbol Meaning

1 VDD module positive power supply (7V~12V)

2 GND The negative pole of the power supply of the module

 

P2 wiring definition:

No. Symbol Meaning

1 AC AC signal input (maximum input 10Vpp)

2 AC AC signal input

Package:

1pc HDM210 Distortion Analyer