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TD1050A Calibration Device for Clamp Meter

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Introduction

  • TD1050A, a calibration device for clamp ammeters. The optional accuracy are 0.02% and 0.05%.

  • The device calibrates the AC/DC clamp ammeters by single coil with high accuracy and easy traceability, and has the functions of AC/DC current output, resistance simulation, frequency/phase adjustment, power detection.

  • Meet the requirements of JJF 1075-2015 Calibration Specification for Clamp Ammeter. (Tunkia is involved in drafting)


Features

  • Calibrate AC/DC clamp ammeters by single coil: The AC/DC current source connect to a single coil semi-circular copper ring with a diameter of 1m, can directly output AC/DC high current up to 2200 A (or 1100 A). Suitable for calibrating AC/DC clamp ammeters with high accuracy.

  • Place the clamp meter in the center of the copper ring when calibrating. The diameter of the copper bar in the center position is smaller than the other positions, which is convenient for the access of small size clamp meters.

  • Easy to open the copper ring, and thread a standard current transformer or I-V converter into the ring for calibrating the device itself regularly.\

  • Reserved terminals for high current, to provide current for the calibration of DC shunts.

  • Value Adjustment Method: Fixed-point, rotary encoder, and step.

  • Frequency and Phase (Option): The AC output frequency and the phase between voltage and current is variable.

  • Power Output (Option): Test DC power, active power, reactive power, apparent power and power factor.

  • Proprietary Software (Option): Support the calibration of the checked ammeters by semi-automatic or full-automatic, data management and report export.


Application

Calibrated Types

Accuracy of Calibrated Device

0.02% Calibrator

0.05% Calibrator

AC/DC Ammeters

0.1 and below

0.2 and below

AC/DC Voltmeters

0.1 and below

0.2 and below

DC Resistance

0.2 and below

0.2 and below

AC/DC Power

0.2 and below

0.5 and below

DC Shunts

0.1 and below

0.2 and below


Specification


AC Voltage Output

Range

Stability (%/min)

Accuracy (k = 2)

(ppm*RD + ppm*RG)

Max. Load

Current (mA)

0.02%

0.05%

0.02%

0.05%

10 V

0.005

0.01

120 + 80

300 + 200

800

30 V

0.005

0.01

120 + 80

300 + 200

700

100 V

0.005

0.01

120 + 80

300 + 200

200

300 V

0.005

0.01

120 + 80

300 + 200

70

750 V

0.005

0.01

120 + 80

300 + 200

30

Remarks: ①: RD is the reading,RG   is the range

  • Output Range of Voltage: 1 V ~ 825 V

  • Display: 6 digits

  • Resolution: 0.002 %*RG

  • Distortion: <0.5 %

  • Protection: Short-circuit protection, overload protection, overheating protection.


AC Current Output

Model

Range

Resolution

Stability (%/min)

Accuracy (k = 2)

(ppm*RD + ppm*RG)

Max. Load

Voltage (V)

0.02%

0.05%

0.02%

0.05%

Small current loop

100 mA

1 μA

0.01

0.01

120 + 80

300 + 200

10

300 mA

1 μA

0.01

0.01

120 + 80

300 + 200

10

1 A

10 μA

0.01

0.01

120 + 80

300 + 200

10

3 A

10 μA

0.01

0.01

120 + 80

300 + 200

10

10 A

100 μA

0.005

0.01

120 + 80

300 + 200

10

30 A

100 μA

0.005

0.01

120 + 80

300 + 200

5

100 A

1 mA

0.005

0.01

120 + 80

300 + 200

5

High current loop

250 A

1 mA

0.01

0.01

120 + 80

300 + 200

7

500 A

1 mA

0.01

0.01

120 + 80

300 + 200

7

1000 A

10 mA

0.005

0.01

120 + 80

300 + 200

7

2000 A

10 mA

0.005

0.01

120 + 80

300 + 200

7

Remarks: ②: 2100 A for option

  • Output Range of Current: 10 mA ~ 1100 A (2100 A);

  • Range Switching: Automatic or Manual

  • Resolution: 0.002 %*RG

  • Distortion: <0.5 % (except 1 kA/2 kA); <1 % @ 1 kA/2 kA range

  • Protection: Short-circuit protection, overload protection, overheating protection.


Frequency

Type

Range

Adjust fineness

Accuracy (k = 2)

Frequency

40.000 Hz ~ 400.000 Hz

(1 kHz can be   customized)

0.001 Hz

0.005%*RD


DC Voltage Output

Range

Stability   (%/min)

Accuracy (k = 2)

(ppm*RD + ppm*RG)

Max. Load

Current   (mA)

0.02%

0.05%

0.02%

0.05%

200 mV

0.005

0.01

120   + 80

300   + 200

100

1 V

0.005

0.01

120   + 80

300   + 200

100

10 V

0.005

0.01

120   + 80

300   + 200

100

30 V

0.005

0.01

120   + 80

300   + 200

600

100 V

0.005

0.01

120   + 80

300   + 200

200

300 V

0.005

0.01

120   + 80

300   + 200

60

600 V

0.005

0.01

120   + 80

300   + 200

25

1000 V

0.005

0.01

120   + 80

300   + 200

20

  • Output Range of Voltage: 20 mV to 1100 V

  • Resolution: 0.002 % of range

  • Ripple Coefficient: <1 %

  • Protection: Short-circuit protection, overload protection, overheating protection.


DC Current Output

Model

Range

Resolution

Stability (%/min)

Accuracy (k = 2)

(ppm*RD + ppm*RG)

Max. Load

Voltage (V)

0.02%

0.05%

0.02%

0.05%

Small current loop

100 mA

1 μA

0.005

0.01

150 + 50

300 + 100

10

300 mA

1 μA

0.005

0.01

150 + 50

300 + 100

10

1 A

10 μA

0.005

0.01

150 + 50

300 + 100

10

3 A

10 μA

0.005

0.01

150 + 50

300 + 100

10

10 A

100 μA

0.005

0.01

150 + 50

300 + 100

10

30 A

100 μA

0.005

0.01

150 + 50

300 + 100

5

100 A

1 mA

0.005

0.01

150 + 50

300 + 100

5

High current loop

250 A

1 mA

0.005

0.01

150 + 50

300 + 100

5

500 A

1 mA

0.005

0.01

150 + 50

300 + 100

5

1000 A

10 mA

0.005

0.01

150 + 50

300 + 100

5

2000 A

10 mA

0.005

0.01

150 + 50

300 + 100

5

Remarks: ②: 2100 A for option

  • Output Range of Voltage: 20 mA ~ 1100 A (2100 A);

  • Resolution: 0.002 %*RG

  • Range Switching: Automatic or Manual

  • Distortion: <0.5 % (except 1 kA/2 kA); <1 % @ 1 kA/2 kA range

  • Protection: Short-circuit protection, overload protection, overheating protection.


Power Output (Option)

Type

Range

Accuracy (k = 2), (%*FS)

0.02%

0.05%

DC Power

Combination of DC voltage and   current range.

0.05

0.1

Active Power |cosφ|≥0.5

Combination of AC voltage and   current range.

0.05

0.1

0.5

0.05

0.1

Reactive Power |sinφ|≥0.5

0.05

0.1

Power Factor

-1.0000…0.0000…+1.0000

0.05

0.1

0.05

0.1

Remark: ③: FS = Voltage range × Current range


Resistance

Range

Resolution

Allowable Current

Accuracy (k = 2)

(ppm*RD + ppm*RG)

100 Ω

1 mΩ

300 + 200

300 + 200

1 kΩ

10 mΩ

300 + 200

300 + 200

10 kΩ

100 mΩ

300 + 200

300 + 200

100 kΩ

1 Ω

300 + 200

300 + 200

1 MΩ

10 Ω

300 + 200

300 + 200

10 MΩ

100 Ω

600 + 400

600 + 400

100 MΩ

1 kΩ

10 nA ~ 50 nA

3000 + 2000

  • Output Range of Resistance: 10 Ω ~ 110 MΩ

  • Display: 6 digits


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