Manufacturer cheap NAPUI PM9820 LED Driver Current Tester with High Accuracy testing equipment

Measurement Items

Display unit

Description

U(k)

V

RMS voltage of the n-th harmonic.

I(k)

A

RMS current of the n-th harmonic.

Uthd

V%

Total harmonic voltage distortion

Ithd

A%

Total harmonic current distortion

Uhdf(k)

V%

The harmonic distortion factor of the nth harmonic voltage

Ihdf(k)

A%

The harmonic distortion factor of the nth harmonic Current.

Measurement Items

unit

Total effective value

fundamental wave

harmonic number

U(k)

V

√

√

2~50*

I(k)

A

√

√

2~50*

Uthd

 V%

√

×

×

Ithd

A%

√

×

×

Uhdf(k)

V%

×

√

2~50*

Ihdf(k)

A%

×

√

2~50*

Input characterization test

Test function

True effective value of voltage,True effective value of current,Active Power, Power factor, frequency and Total harmonic distortion of voltage and current.

0-50 times Harmonic true rms and relative values

Input current frequency selection

Narrow frequency(20Hz-5KHz), Broadband(20Hz-1MHz)

Input characteristic measurement range

Voltage

5V-600V

Current

5mA-10A

Frequency

DC,45Hz-65Hz

Accuracy

±(0.15%read+0.15%range)

Output characterization test

Output steady state characteristic test

True effective value of voltage, Oscillation frequency, rue effective value of current, Active power, Power factor

Output characteristic measurement range

Voltage

3V-300V

Current

5mA-10A

Frequency

DC,45Hz-65Hz

Accuracy

±(0.15%read+0.15%range)

No.

Function

Specification

1

Power supply socket

Used for input AC power supply.

2

RS232/485

Realize serial communication with the host computer

3

USB

USB serial communication port

4

Ethernet

communication with the host computer

5

Input measuring end

6

Output measuring end