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)① |
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 A② | 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 A② | 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)③ | |
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