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TD1450 Analog Standard Resistor

TD1450 is an instrument that accurately simulates DC or AC standard resistance, and is suitable for calibrating loop resistance testers, DC resistance testers, earth continuity testers, and other AC testers DC low impedance instrument. The instrument is also a good precision ammeter for measuring a wide range of DC or AC currents.

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Model:
TD1450
Brand:
TUNKIA

TD1450 Analog Standard Resistor

1. Summary

TD1450 is an instrument that accurately simulates DC or AC standard resistance, and is suitable for calibrating loop resistance testers, DC resistance testers, ground on-resistance testers, and other DC or AC low impedance instrument. The instrument is also a good precision ammeter for measuring a wide range of DC or AC currents.

2. Features

• Accuracy: Class 0.02/ Class 0.05

• Maximum current measurement: 60 A (120A, 240A, 600A optional).

• DC resistance simulation: 1 μΩ ~ 200 Ω (related to current specification).

• AC resistance simulation: 30 μΩ ~ 150 Ω (dependent on current specification).

• Input current ripple or harmonic measurement function.

• Displaying the waveform of the measured current.

• Statistical analysis

• LCD touch screen

• Specialized automation testing software

3.Application

TD1450 Analog Standard Resistor 1 Application

4. Characteristics

☆ Analog resistance output

TD1450 Analog Standard Resistor 2 Analog resistance output

• Higher measurement accuracy with the four-wire wiring method.

• Self-calibration.

☆ Wide range of current measurement

TD1450 Analog Standard Resistor 3 Wide range of current measurement

• Direct current measurement: A pair of quick terminals can be used to directly measure the AC and DC current in a wide range of 10 m A ~ 60 A.

• Current conversion measurement: The instrument is equipped with a sensor-specific measurement interface, which can simultaneously supply power to the sensor and measure its secondary signal, and can be connected to a precision current sensor (such as TH0550T) and extend the current range to 100 A, 200 A, 500A and beyond. By setting the ratio of the current sensor on the instrument, the magnitude of the primary current of the measured sensor is directly displayed.

☆ Multiple output methods

TD1450 Analog Standard Resistor 4 Multiple output methods

• The instrument has a "fixed point output" mode, through the digital button of the control panel or click the touch screen, directly set the required output value, the instrument will automatically switch to the best range output.

☆ Multiple output methods

TD1450 Analog Standard Resistor 5 Multiple output methods

• When calibrating a resistance tester, it is usually necessary to select the calibration point according to the proportion of each range of the meter to be checked.

• The user can easily select the calibration point of the inspected meter through the "Percentage Output Button" on the console of this instrument or the "Percentage Check Point" on the touch screen.

TD1450 Analog Standard Resistor 6 Multiple output methods

• The operating area is equipped with a "rotary encoder" that increases or decreases the output by rotating it clockwise or counterclockwise.

☆ AC/DC comprehensive measurement

TD1450 Analog Standard Resistor 7 AC DC comprehensive measurement

• The instrument supports DC or AC (optional) measurement mode, AC frequency range: 45 Hz ~ 65 Hz.

• When measuring the current, the distortion degree and ripple can be measured synchronously. The maximum measurement bandwidth of DC ripple is 1 kHz, and the AC supports the measurement of the 2^nd~32^nd harmonics

☆ DC characterization

S/N	Function
	Current overshoot: the maximum test current is displayed in DC mode, which is convenient for calculating the working current overshoot;
	Waveform display: With oscilloscope function, the waveform of the measured current can be displayed in real time.
	Ripple measurement: the instrument directly displays the ripple measurement results on the screen, which is convenient for users to read.

☆ AC characterization

S/N	Function
	Harmonic distortion: The instrument directly calculates two types of harmonic distortion, THD/T (harmonics relative to full wave) and THD/F (harmonics relative to fundamental waves).
	Harmonic data: display the amplitude (RMS), content (%) and phase of the 2^nd~32^nd harmonics.
	DC component: display the DC component in the AC current signal.
	Waveform display: With waveform display function, the waveform of the measured current can be displayed in real time.

☆ Statistical analysis of test data

S/N	Function
	Integration period: The integration period can be set in the range of 0.5 s ~ 20 s (default 1s), which is convenient for users to set sampling data according to actual needs;
	Statistical analysis: Real-time recording and statistical test data, including current Max, Min, Avg, Span, Stab, S. dev, Time, test times N, etc.

☆ Rich communication interface and special test software

TD1450 Analog Standard Resistor 11 Rich communication interface and special test software

• RS232, USB, LAN interfaces.

5. Technical Specifications

5.1 DC current measurement DCI

Range	Resolution	Measurement uncertainty ( k=2 ). ( ppmRD + ppmRG ) [1]		Temperature coefficient @ ( 15 ~ 30 ) °C ( ppm*RG/℃ )
Range	Resolution	Class 0.05	Class 0.02	Class 0.05	Class 0.02
100 mA	1 μA	200 + 200	100 + 100	10	4
200 mA	1 μA	200 + 100	100 + 50	10	4
500 mA	1 μA	200 + 100	100 + 50	10	4
1 A	10 μA	200 + 100	100 + 50	10	4
2 A	10 μA	200 + 100	100 + 50	10	4
5 A	10 μA	200 + 100	100 + 50	10	4
10 A	100 μA	200 + 100	100 + 50	10	4
20 A	100 μA	200 + 100	100 + 50	10	4
50 A	100 μA	200 + 100	100 + 50	10	4
100 A [2]	1 mA	200 + 100	100 + 50	10	4
200 A [2]	1 mA	200 + 100	100 + 50	10	4
500 A [2]	1 mA	200 + 100	100 + 50	10	4
Note [1]: RD is the reading value, RG is the range value; [2] : 100 A, 200 A, 5 00 A range is optional, and the TH0550T through-core AC/DC current sensor must be selected to the appropriate specifications

• Measuring range (TD1450-X-50 A, maximum capacity: 50 A): 10 m A ~ 60 A

Measuring range (TD1450-X-100 A, maximum range: 100 A): 10 mA ~ 120 A

Measuring range (TD1450-X-200 A, maximum range: 200 A): 10 mA ~ 240 A

Measuring range (TD1450-X-500 A, maximum range: 500 A): 10 mA ~ 600 A

• Display digits: 6-digit decimal display

• Ripple measurement band: 1 Hz ~ 1 kHz, measurement uncertainty (k=2): 0.02%*RG, rms

• Input protection: can withstand 2 times the rated current and 5 s overload

5.2 AC current measurement ACI

Range	Resolution	Measurement uncertainty ( k=2 ). ( ppmRD + ppmRG ) [1]		Temperature coefficient @ ( 15~30 )°C ( ppm*RG/℃ )
Range	Resolution	Class 0.05	Class 0.02	Class 0.05	Class 0.02
100 mA	1 μA	500 + 500	300 + 200	20	10
200 mA	1 μA	500 + 500	300 + 200	20	10
500 mA	1 μA	500 + 500	300 + 200	20	10
1 A	10 μA	500 + 500	300 + 200	20	10
2 A	10 μA	500 + 500	300 + 200	20	10
5 A	10 μA	500 + 500	300 + 200	20	10
10 A	100 μA	500 + 500	300 + 200	20	10
20 A	100 μA	500 + 500	300 + 200	20	10
50 A	100 μA	500 + 500	300 + 200	20	10
100 A [2]	1 mA	500 + 500	300 + 200	20	10
200 A [2]	1 mA	500 + 500	300 + 200	20	10
500 A [2]	1 mA	500 + 500	300 + 200	20	10
Note [1]: RD is the reading value, RG is the range value; [2] : 100 A, 200 A, 500 A range is optional, and the TH 0550 T through-core AC/DC current sensor must be selected

• Measuring range (TD145 0-X-50 A-B size, maximum capacity: 50 A): 10 mA ~ 60 A

Measuring range (TD145 0-X-100 A-B size, maximum capacity: 100 A): 10 mA ~ 120 A

Measuring range (TD145 0-X-200 A-B size, maximum capacity: 200 A): 10 mA ~ 240 A

Measuring range (TD145 0-X-500 A-B size, maximum capacity: 500 A): 10 mA ~ 600 A

• Display digits: 6-digit decimal display

• AC frequency: 45 Hz ~ 65 Hz, measurement uncertainty (k=2): 0.01 Hz, harmonic measurement: 2^nd ~ 32^nd times

• Input protection: can withstand 2 times the rated current and 5 s overload

5.3 DC resistance simulation

Current range	The setting range of the resistance value R	Adjust the fineness	Measurement uncertainty (k=2, ppm*RD+R0) [1].
Current range	The setting range of the resistance value R	Adjust the fineness	Class 0.05	Class 0.02
500 A [2]	1 μΩ ≤ R ≤ 400 μΩ	2 nΩ	500 + 20 nΩ	200 + 10 nΩ
	400 μΩ < R ≤ 4 mΩ	20 nΩ	500	200
	4 mΩ < R ≤ 40 mΩ	200 nΩ	500	200
200 A [2]	3 μΩ ≤ R ≤ 1 mΩ	10 nΩ	500 + 30 nΩ	200 + 20 nΩ
	1 mΩ < R ≤ 10 mΩ	100 nΩ	500	200
	10 mΩ < R ≤ 100 mΩ	1 mΩ	500	200
100 A [2]	5 mH ≤ R ≤ 2 mΩ	10 nΩ	500 + 60 nΩ	200 + 40 nΩ
	2 mΩ < R ≤ 20 mΩ	100 nΩ	500	200
	20 mΩ < R ≤ 200 mΩ	1 mΩ	500	200
50 A	10 mΩ ≤ R ≤ 4 mΩ	20 nΩ	500 + 120 nΩ	200 + 80 nΩ
	4 mΩ < R ≤ 40 mΩ	200 nΩ	500	200
	40 mΩ < R ≤ 400 mΩ	2 mΩ	500	200
20 A	30 mΩ ≤ R ≤ 10 mΩ	100 nΩ	500 + 0.3 mΩ	200 + 0.2 mΩ
	10 mΩ < R ≤ 100 mΩ	1 mΩ	500	200
	100 mΩ < R ≤ 1 Ω	10 mΩ	500	200
10 A	50 mH ≤ R ≤ 20 mΩ	100 nΩ	500 + 0.6 mΩ	200 + 0.4 μΩ
	20 mΩ < R ≤ 200 mΩ	1 mΩ	500	200
	200 mΩ < R ≤ 2 Ω	10 mΩ	500	200
5 A	100 μΩ ≤ R ≤ 40 mΩ	200 nΩ	500 + 1.2 mΩ	200 + 0.8 mΩ
	40 mΩ < R ≤ 400 mΩ	2 mΩ	500	200
	400 mΩ < R ≤ 4 Ω	20 mΩ	500	200
2 A	300 μΩ ≤ R ≤ 100 mΩ	1 mΩ	500 + 3 mΩ	200+ 2 mΩ
	100 mΩ < R ≤ 1 Ω	10 mΩ	500	200
	1 Ω < R ≤ 10 Ω	100 mΩ	500	200
1 A	500 μΩ ≤ R ≤ 200 mΩ	1 mΩ	500 + 6 mΩ	200 + 4 mΩ
	200 mΩ < R ≤ 2 Ω	10 mΩ	500	200
	2 Ω < R ≤ 20 Ω	100 mΩ	500	200
500 mA	1 m Ω ≤ R ≤ 400 mΩ	2 mΩ	500 + 12 mΩ	200 + 8 mΩ
	400 mΩ < R ≤ 4 Ω	20 mΩ	500	200
	4 Ω < R ≤ 40 Ω	200 mΩ	500	200
200 mA	3 m Ω ≤ R ≤ 1 Ω	10 mΩ	500 + 30 mΩ	200 + 20 mΩ
	1 Ω < R ≤ 10 Ω	100 mΩ	500	200
	10 Ω < R ≤ 100 Ω	1 mΩ	500	200
1,00 mA	5 m Ω ≤ R ≤ 2 Ω	10 mΩ	500 + 60 mΩ	200 + 50 mΩ
	2 Ω < R ≤ 20 Ω	100 mΩ	500	200
	20 Ω < R ≤ 200 Ω	1 mΩ	500	200
Note [1]: RD is the reading value, RG is the range value; [2]: 100 A, 200 A, 500 A range is optional, and the TH 0550T through-core AC/DC current sensor must be selected.

• Resistance analog range (TD145 0-X-50 A specification, maximum range: 50 A): 10 μΩ ~ 200 Ω

Resistance analog range (TD145 0-X-100 A, maximum range: 100 A) ：5 μΩ ~ 200 Ω

Resistance analog range (TD145 0-X-200 A, maximum range: 200 A): 3 μΩ ~ 200 Ω

Resistance analog range (TD145 0-X-500 A, maximum range: 500 A): 1 μΩ ~ 200 Ω

• Display digits: 6-digit decimal display, set the resistance value through the number keys.

5.4 AC resistance simulation

Current range	The setting range of the resistance value R	Adjust the fineness	Measurement uncertainty ( k=2, ppm*RD + R0 ) [1].
Current range	The setting range of the resistance value R	Adjust the fineness	Class 0.05	Class 0.02
500 A [2]	30 μΩ ≤ R ≤ 300 μΩ	2 nΩ	1000 + 0.2 μΩ	500 + 0.1 mΩ
	300 μΩ < R ≤ 3 mΩ	20 nΩ	1000	500
	3 mΩ < R ≤ 30 mΩ	200 nΩ	1000	500
200 A [2]	75 mΩ ≤ R ≤ 750 μΩ	10 nΩ	1000 + 0.4 μΩ	500 + 0.2 mΩ
	750 μΩ< R ≤ 7.5 mΩ	100 nΩ	1000	500
	7.5 mΩ < R ≤ 75 mΩ	1mΩ	1000	500
100 A [2]	150 mΩ ≤ R ≤ 1.5 mΩ	10 nΩ	1000 + 1 mΩ	500 + 0.5 mΩ
	1.5 mΩ < R ≤ 15 mΩ	100 nΩ	1000	500
	15 mΩ < R ≤ 150 mΩ	1 mΩ	1000	500
50 A	300 mΩ ≤ R ≤ 3 mΩ	20 nΩ	1000 + 2 μΩ	500 + 1 mΩ
	3 mΩ < R ≤ 30 mΩ	200 nΩ	1000	500
	30 mΩ < R ≤ 300 mΩ	2 mΩ	1000	500
20 A	750 mΩ ≤ R ≤ 7.5 mΩ	100 nΩ	1000 + 4 μΩ	500 + 2 mΩ
	7.5 mΩ < R ≤ 75 mΩ	1 mΩ	1000	500
	75 mΩ < R ≤ 750 mΩ	10 mΩ	1000	500
10 A	1.5 mΩ ≤ R ≤ 15 mΩ	100 nΩ	1000 + 10 μΩ	500 + 5 mΩ
	15 mΩ < R ≤ 150 mΩ	1 mΩ	1000	500
	150 mΩ < R ≤ 1.5 Ω	10 mΩ	1000	500
5 A	3 mΩ ≤ R ≤ 30 mΩ	200 nΩ	1000 + 20 μΩ	500 + 10 mΩ
	30 mΩ < R ≤ 300 mΩ	2 mΩ	1000	500
	300 mΩ < R ≤ 3 Ω	20 mΩ	1000	500
2 A	7.5 mΩ ≤ R ≤ 75 mΩ	1 mΩ	1000 + 40 mΩ	500 + 20 mΩ
	75 mΩ < R ≤ 750 mΩ	10 mΩ	1000	500
	750 mΩ < R ≤ 7.5 Ω	100 mΩ	1000	500
1 A	15 mΩ ≤ R ≤ 150 mΩ	1 mΩ	1000 + 100 μΩ	500 + 50 mΩ
	150 mΩ < R ≤ 1.5 Ω	10 mΩ	1000	500
	1.5 Ω < R ≤ 15 Ω	100 mΩ	1000	500
500 mA	30 mΩ ≤ R ≤ 300 mΩ	2 mΩ	1000 + 200 μΩ	500 + 100 mΩ
	300 mΩ < R ≤ 3 Ω	20 mΩ	1000	500
	3 Ω < R ≤ 30 Ω	200 mΩ	1000	500
200 mA	75 mΩ ≤ R ≤ 750 mΩ	10 mΩ	1000 + 400 μΩ	500 + 200 mΩ
	750 mΩ < R ≤ 7.5 Ω	100 mΩ	1000	500
	7.5 Ω < R ≤ 75 Ω	1 mΩ	1000	500
100 mA	75 mΩ ≤ R ≤ 1.5 Ω	10 mΩ	1000 + 1000 μΩ	500 + 500 μΩ
	1.5 Ω < R ≤ 15 Ω	100 mΩ	1000	500
	15 Ω < R ≤ 150 Ω	1 mΩ	1000	500
Note [1]: RD is the reading value, RG is the range value; [2] : 100 A, 200 A, 5 00 A range is optional, and the TH 0550 T through-core AC/DC current sensor must be selected.

• Resistance analog range (TD1450-X-50 A-B specification, maximum range: 50 A): 300 μΩ ~ 150 Ω

Resistance analog range (TD1450-X-100 A-B specification, maximum range: 100 A): 150 μΩ ~ 150 Ω

Resistance analog range (TD1450-X-200 A-B specification, maximum capacity: 200 A): 75 μΩ ~ 150 Ω

Resistance analog range (TD1450-X-500 A-B specification, maximum range: 500 A): 30 μΩ ~ 150 Ω

• Display digits: 6-digit decimal display, set the resistance value through the number keys.

6. General Specifications

Power supply	AC ( 220 ± 22 )V，( 50 ± 2 )Hz
Maximum power consumption	100 VA
Warm-up time	≥ 30 min
Temperature performance	Working temperature: 18°C ~ 28°C; Storage temperature: -20°C ~ 70°C.
Humidity performance	Operating humidity: ( 40% ~ 80% ) R·H, no condensation Storage humidity: <80% R·H, no condensation
Communication interface	LAN、USB、RS232
Quality	Approx 12.5 kg
Size	400 mm (W) X 300 mm (D) X 190 mm (H) (excluding handlebars and feet).
Size