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TD1300 High-Precision DC Standard Meter

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Introduction

  • TD1300 is a high-precision DC standard instrument that can directly measure bidirectional DC voltage, current, and small signal voltage.

  • This instrument is also a high-level DC standard power/energy meter, with accuracy of 0.02% and 0.01%.

  • It can directly verify or calibrate DC voltage source, current source, power source and other equipment, or calibrate DC voltmeter, ammeter, power meter with test voltage.

  • In the field of electric energy measurement, this instrument can be used as a high-level electric energy standard meter for the assessment of DC electric energy meter verification devices, DC standard electric energy meters, charger testers and other equipment.


Features

  • Wide range of direct current measurement: a pair of terminals can be used to measure the DC current of 10 μA ~ 120A, which solves the top problem of automatic range switching of ultra-wide range DC current.

  • Current expansion measurement: it is equipped with a special measurement interface for the sensor, which can be connected with a through current sensor to expand the measurement range to 500 A, 1 kA, etc.

  • The interface can supply power for the sensor and measure the secondary signal at the same time. The primary current can be displayed directly, by setting the ratio of the sensor on the instrument.

  • Small signal voltage measurement: it can withstand the overload signal of 100V peak voltage. It is suitable for testing indirect access watt hour meter verification device. It can also be connected with shunt or I / V conversion standard to measure large current.

  • Statistics and Analysis of Data: Calculate the electrical parameters such as the maximum, minimum, average, difference, standard deviation, etc.

  • Ripple Measurement: The measurement bandwidth is up to 5 kHz with an accuracy of ±0.02 % of range.

  • High reliability of the instrument: complete electrical isolation between the two voltage and current measuring circuits.

  • When measuring real load power, the current measurement circuit can be placed on the high or low side of the voltage circuit.

  • Electric Energy Metering: Standard I/O pulse interfaces, used for building a standard for high-class DC electric energy metering.

  • Excellent Human-computer Interaction: LCD touch screen, more intuitive of value display and easier operation. it is equipped with RS232, USB, RJ45 interfaces, which is convenient to set up a full-automatic measurement system.

Specification


DC Voltage Measurement DCV

Range

Resolution

Accuracy (k   = 2)

ppm*RD +ppm*RG   or V

Temperature   Coefficient

ppm*RD +ppm*RG   or V /℃

0.02%

0.01%

0.02%

0.01%

100 mV

0.1 μV

80 + 6 μ

50 + 5 μ

3 + 0.5 μ

3.5 + 1.5

300 mV

0.1 μV

60 + 8 μ

30 + 6 μ

3 + 0.6 μ

3 + 0.6 μ

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 + 1

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

l  Measuring Range of Voltage: ± (10 mV ~ 1150 V)

  • Range Switching: Automatic or Manual

  • Input Resistance: 1 MΩ

DC Current Measurement DCI

Range

Resolution

Accuracy (k   = 2)

ppm*RD +ppm*RG or A

Temperature   Coefficient

ppm*RD +ppm*RG or A /℃

0.02%

0.01%

0.02%

0.01%

100 μA

0.1 nA

100 + 10 n

50 + 5 n

5 + 1 n

3 + 0.5 n

300 μA

0.1 nA

100 + 25 n

50 + 15 n

5 + 2 n

3 + 1.5 n

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 μA

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

100 μA

60 + 40

30   + 20

6 + 2.5

3.5 + 1.5

500 A

100 μA

60 + 40

30   + 20

6 + 2.5

3.5 + 1.5

  • Note: ①: Range of 200 A and 500 A are optional, which needs to be equipped with current sensor such as TH5450-500 A to realize range expansion

  • Measuring Range: ± (10 μA ~ 120 A)

  • Range Switching: Automatic or Manual

  • Direct input


DC Small signal voltage measurement DCIU (Indirect access)  

Range

Resolution

Accuracy (k   = 2)

ppm*RD +ppm*RG or V

Temperature   Coefficient

ppm*RD +ppm*RG or V /℃

0.02%

0.01%

0.02%

0.01%

1 mV

1 nV

80 + 0.4 μ

40 + 0.2 μ

5 + 0.04 μ

4 + 0.02 μ

10 mV

10 nV

80 + 1 μ

40 + 0.5 μ

5 + 0.1 μ

3 + 0.05 μ

100 mV

100 nV

80 + 20

40 + 10

5 + 2

3 + 0.5

1 V

1 μV

80 + 20

40 + 10

5 + 1

2 + 0.5

10 V

10 μV

80 + 20

40 + 10

5 + 1

2 + 0.5

  • Measuring Range: ± (0.1mV ~ 11 V)

  • Input Resistance: >1 GΩ

  • Input Protection: ± 110 Vpk, continuous.


DC Electric Energy / Power measurement

  • Measuring Range: Combination of DC voltage range and DC current range.

  • Accuracy: DC voltage accuracy + DC current accuracy.

  • Input of Standard Electric Energy Pulse: Directly receive the electric energy pulse of the checked meters.

  • Output of Standard Electric Energy Pulse: The amplitude of the signal is 5 V, 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 Measurement Error: Automatically display with 0.0001%.


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