• The device has a built-in DC current standard source with an output range of 0.5 A~600 A, and the current accuracy of the class 0.02 device reaches class 0.01, which is suitable for calibrating the DC large ammeter of class 0.05 and below.

• The device can provide 600 A large current for the primary side of current conversion devices (such as transformer, I/I conversion, I/V conversion, etc.).

• DC high current standard source: Maximum output is 600 A, which can be used as the primary current input of the DC shunt.

• DC small signal voltmeter: Support voltage input range is 100 μV~11 V, which can measure the secondary output voltage of the shunt.

• Verification and test of DC shunt (option): Can measure the resistance value and basic error of the diverter, draw R (I) and R (t) curves.

• Precise integrated circuit devices are used to ensure the long-term accuracy of the system.

• Adopt the design principle of closed-loop negative feedback system to ensure the stability of output.

 • Digital programmable keys: It can realize fixed-point output, rotary encoder, step adjustment and multiple input modes.

   • The instrument has a "fixed-point output" mode. The required output value can be directly set by pressing the number keys on the console or clicking the touch screen, and the instrument will automatically switch to the optimal range output;

   • In particular, when setting the current, input the current value directly.

• The key operation area is equipped with a "rotary knob", which can increase or decrease the value output by rotating clockwise or counterclockwise.

   • When calibrating electrical measuring instruments, it is usually necessary to select calibration points according to the proportion of each range of the meter being tested;

   • The user can select the calibration point of the tested meter through the "percentage verification point" on the touch screen of the instrument.

   • The device has RS232 communication interfaces, and its software functions can be customized according to customer needs.

Class 0.05

Class 0.02

Class 0.05

Class 0.02

5 A

0.005

0.003

120 + 80

60 + 40

3.5

10 A

0.005

0.003

120 + 80

60 + 40

3.5

20 A

0.005

0.003

120 + 80

60 + 40

3.5

50 A

0.005

0.003

120 + 80

60 + 40

3.5

100 A

0.005

0.003

120 + 80

60 + 40

3.5

200 A

0.005

0.003

120 + 80

60 + 40

3.5

500 A

0.005

0.003

120 + 80

60 + 40

3.5

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

Class 0.05

Class 0.02

Class 0.05

Class 0.02

1 mV

150 + 1

80 + 0.5

<30

<15

10 mV

150 + 3

80 + 1.5

<10

<5

100 mV

150 + 10

80 + 5

<10

<5

1 V

150 + 20

80 + 10

<5

<2

10 V

150 + 100

80 + 50

<5

<2

0.05

0.02

5 A

(0.1~1) mV

20 μΩ ≤ R ≤ 200 μΩ

0.135%

0.068%

(1~10) mV

200 μΩ < R ≤ 2 mΩ

0.065%

0.033%

(10~100) mV

2 mΩ < R ≤ 20 mΩ

0.045%

0.023%

(0.1~1) V

20 mΩ < R ≤ 200 mΩ

0.037%

0.019%

(1~3) V

200 mΩ < R ≤600 mΩ

0.036%

0.019%

10 A

(0.1~1) mV

10 μΩ ≤ R ≤ 100 μΩ

0.135%

0.068%

(1~10) mV

100 μΩ < R ≤ 1 mΩ

0.065%

0.033%

(10~100) mV

1 mΩ < R ≤ 10 mΩ

0.045%

0.023%

(0.1~1) V

10 mΩ < R ≤ 100 mΩ

0.037%

0.019%

(1~3) V

100 mΩ < R ≤300 mΩ

0.036%

0.019%

20 A

(0.1~1) mV

5 μΩ ≤ R ≤ 50 μΩ

0.135%

0.068%

(1~10) mV

50 μΩ < R ≤ 500 μΩ

0.065%

0.033%

(10~100) mV

500 μΩ < R ≤ 5 mΩ

0.045%

0.023%

(0.1~1) V

5 mΩ < R ≤ 50 mΩ

0.037%

0.019%

(1~3) V

50 mΩ < R ≤ 150 mΩ

0.036%

0.019%

50 A

(0.1~1) mV

2 μΩ ≤ R ≤ 20 μΩ

0.135%

0.068%

(1~10) mV

20 μΩ < R ≤ 200 μΩ

0.065%

0.033%

(10~100) mV

200 μΩ < R ≤ 2 mΩ

0.045%

0.023%

(0.1~1) V

2 mΩ < R ≤ 20 mΩ

0.037%

0.019%

(1~3) V

20 mΩ < R ≤ 60 mΩ

0.036%

0.019%

100 A

(0.1~1) mV

1 μΩ ≤ R ≤ 10 μΩ

0.135%

0.068%

(1~10) mV

10 μΩ < R ≤ 100 μΩ

0.065%

0.033%

(10~100) mV

100 μΩ < R ≤ 1 mΩ

0.045%

0.023%

(0.1~1) V

1 mΩ < R ≤ 10 mΩ

0.037%

0.019%

(1~3) V

10 mΩ < R ≤ 30 mΩ

0.036%

0.019%

200 A

(0.1~1) mV

500 nΩ ≤ R ≤ 5 μΩ

0.135%

0.068%

(1~10) mV

5 μΩ < R ≤ 50 μΩ

0.065%

0.033%

(10~100) mV

50 μΩ < R ≤ 500 μΩ

0.045%

0.023%

(0.1~1) V

500 μΩ < R ≤ 5 mΩ

0.037%

0.019%

(1~3) V

5 mΩ< R ≤ 15 mΩ

0.036%

0.019%

500 A

(0.1~1) mV

200 nΩ ≤ R ≤ 2 μΩ

0.135%

0.068%

(1~10) mV

2 μΩ < R ≤ 20 μΩ

0.065%

0.033%

(10~100) mV

20 μΩ < R ≤ 200 μΩ

0.045%

0.023%

(0.1~1) V

200 μΩ < R ≤ 2 mΩ

0.037%

0.019%

(1~3) V

2 mΩ< R ≤ 6 mΩ

0.036%

0.019%

Note②: Accuracy of resistance measurement corresponding to other voltage values =(∆U/U0+∆I/I0), U₀ and I0 are the reading values of current voltage and current respectively, ∆U and ∆I are the absolute error values of current measured voltage and current respectively.

Warm up time

2h;

Maximum power consumption

4.8 kVA

Sampling rate

0.5 sps

Temperature performance

Operating temperature: 15 °C~30 °C;

Storage temperature: -20 °C ~ 70 °C;

Humidity performance

Operating humidity: ( 20 % ~ 50% ) R·H, No condensation;

Storage humidity: ( 15 % ~ 80% ) R·H, No condensation;

Altitude

< 3000 m

Weight

About 49.5 kg

Communication interface

RS 232

Unit size

623 mm (W)×548 mm (D) × 260 mm (H) (Excluding handle and support foot)