• Direct current measurement：Use a pair of quick connect terminals to directly measure 10 μA~120 A wide range DC current.

• Current conversion measurement：The instrument is equipped with a special measuring interface for the transducer, which can simultaneously supply power to the transducer and measure its secondary signal. It can be connected to a precision current transducer (such as TH0540) to expand the current range to 500 A, 1 kA or even greater. The primary current of the measured transducer can be directly displayed by setting the ratio of the current transducer on the instrument.

• The instrument supports DC, DC ripple and other measurement modes, the DC ripple measurement bandwidth is up to 10 kHz.

• DC ripple measurement function is very suitable for verifying the verification device of electric energy meter with ripple output function.

• It has a small signal voltage measurement function of ± (0.1 mV ～ 12 V), is equipped with ultra-low thermal potential terminals and test wires, and can withstand the overload signal of ± 100 V peak voltage at most。

• Application Scenario 1: It can be used to calibrate shunt or other I/V transformer with stable large current sources and precision current transducer.

• Application Scenario 2: With precision voltage measurement function, it can be used to assess the verification equipment for indirect connected DC electrical energy meters.

• The instrument has the function of power calculation. Users can connect voltage divider, shunt, transformer and other range extenders externally, set the ratio k and offset b, measure the secondary output signal x of the range extenders, and then calculate the actual value of the primary power to be measured according to the function f(x)=kx+b.

S/N

Function declaration

With DC ripple measurement function, it can measure ripple content in the range of 1 Hz~10 kHz.

It can display ripple waveform in real time, and measure RMS and P-P of ripple.

Data statistics and analysis: Calculate the maximum (Max), minimum (Min), peak to peak (P-P), average (Avg), standard deviation (S.dev), divergence (Div), etc. of the measured electricity.

Power trend chart test: During the test cycle, draw the curve of power change with time in real time.

Class 0.02

Class 0.01

Class 0.02

Class 0.01

100 mV

0.1 μV

80 + 6 μ

50+ 5 μV

3 + 0.5 μV

3.5 + 1.5 μV

300 mV

0.1 μV

60 + 8 μ

30 + 6 μV

3 + 0.6 μV

3 + 0.6 μV

1 V

1 μV

60 + 40

30 + 20

2.5 + 1

2.5 + 1

3 V

1 μV

60 + 40

30 + 20

2.5 + 1

2.5 + 1

10 V

10 μV

60 + 40

30 + 20

2.5 + 0.5

2.5 + 0.5

30 V

10 μV

60 + 40

30 + 20

2.5 + 1

2.5 + 1

100 V

100 μV

60 + 40

30 + 20

2.5 + 1

2.5 + 1

300 V

100 μV

60 + 40

30 + 20

3.5 + 1.5

3.5 + 1.5

1000 V

1 mV

60 + 40

30 + 20

3.5 + 1.5

3.5 + 1.5

Note [1] : (ppm = parts per million) (e.g.，10ppm = 0.001%).

0.02

0.01

0.02

0.01

1 mV

1 nV

80 + 0.4 μ

40 + 0.2 μV

5 + 0.04 μV

4 + 0.02 μV

10 mV

10 nV

80 + 1 μ

40 + 0.5 μV

5 + 0.1 μV

3 + 0.05 μV

100 mV

100 nV

80 + 20

40 + 10

5 + 2.0

3 + 1.0

1 V

1 μV

80 + 20

40 + 10

5 + 1.0

2 + 0.5

10 V

10 μV

80 + 20

40 + 10

5 + 1.0

2 + 0.5

0.02

0.01

0.02

0.01

100 μA

0.1 nA

100 + 10 nA

50 + 5 nA

5 + 1 nA

3 + 0.5 nA

300 μA

0.1 nA

100 + 25 nA

50 + 15 nA

5 + 2 nA

3 + 1.5 nA

1 mA

1 nA

60 + 40

30 + 20

5 + 1.5

2.5 + 1

3 mA

1 nA

60 + 40

30 + 20

5 + 1.5

2.5 + 1

10 mA

10 nA

60 + 40

30 + 20

5 + 1.5

2.5 + 1

30 mA

10 nA

60 + 40

30 + 20

5 + 1.5

2.5 + 1

100 mA

100 nA

60 + 40

30 + 20

5 + 1.5

2.5 + 1

300 mA

100 nA

60 + 40

30 + 20

5 + 1.5

2.5 + 1

1 A

1 μ A

60 + 40

30 + 20

5 + 1.5

2.5 + 1

3 A

1 μA

60 + 40

30 + 20

5 + 1.5

2.5 + 1

10 A

10 μA

60 + 40

30 + 20

5 + 1.5

2.5 + 1

30 A

10 μA

60 + 40

30 + 20

5 + 1.5

2.5 + 1

100 A

100 μA

60 + 40

30 + 20

5 + 1.5

2.5 + 1

200 A [2]

100 μA

60 + 40

30 + 20

6 + 2.5

3.5 + 1.5

500 A [2]

100 μA

60 + 40

30 + 20

6 + 2.5

3.5 + 1.5

Note [2]: 200 A and 500 A range current are options, and a current transducer such as TH0540 must be selected to expand the range.

Accuracy (k=2)

0.05%*RG，Valid values

Accuracy

Accuracy of DC voltage+ Accuracy of DC current (or small signal voltage)

Electric Energy Pulse

Standard Electric Energy Pulse Input

Directly receive the photoelectric pulse of electric energy of the tested meter

Standard Electric Energy Pulse Output

Signal amplitude is 5V, TTL level

FH=60 kHz × Power value ÷ voltage range value ÷ current range value

FL=60 kHz × Power value ÷ voltage range value ÷ current range value ÷ 10000

Electric Energy Error Display

Automatic display, resolution 0.001%

Temperature Performance

Working temperature：15°C~35°C；

Storage temperature：-10°C~50°C

Humidity Performance

Working humidity：< 80% @ 30°C，< 70% @ 40°C，< 40% @ 50°C

Storage humidity：(20%~80%) R·H，No condensation

Interface

RS232、RJ45