TH0800 Wiring AC I/V transfer standard

• Resistance: Accuracy:30ppm
• Function for Resistance: Shunt Resistor, Sampling Resistor
• Resistance change scale: Linear Scale
• Application: Metrology Calibration
• Input Current: 0.1A ~ 1ka
• Output Voltage: 1V
• Model NO.: TH0800
• Frequency Range: DC~2.5kHz
• DC Ratio Accuracy: 10ppm
• Phase Displacement: 5μrad
• Trademark: TUNKIA
• Origin: Chn
• HS Code: 9030339000
• Production Capacity: 500 Set/Year

Product Description

TH0800 Wiring AC I/V transfer standard



Introduction

1. TH0800 contains 14 I/V high-precision AC current transfer standard with different ranges, are divided into A, B two versions according to the accuracy.
2. TH0800 can work in the 40 Hz ~ 2.5 kHz frequency range, converting 10 mA ~ 1 kA nominal current into 1V small voltage.
3. AC ratio accuracy: 30 ppm(TH0800A) or 10 ppm(TH0800B).
4. It is convenient to be connected into the large current loop with wiring structure. The secondary output can be equipped with high-precision voltmeter to achieve high-precise measurement of current.
5. It is suitable for calibration of AC high current source, current sensor/transformer, and other occasions where AC current needs to be measured precisely.
6. TH0800 can be used with broadband V/V voltage divider, voltage vector analyzer to set up high-precision AC power/energy measurement system.
7. The equipment is of passive structure, good stability and reliability, suitable for carrying to the site.

Specification

Model	Primary Inom (A)	Secondary Unom (V)	Best Ratio Measurement Accuracy (ppm*FS^)
			TH0800A	TH0800B
TH0800X-100mA	0.1	1	30	10
TH0800X-200mA	0.2	1	30	10
TH0800X-500mA	0.5	1	30	10
TH0800X-1A	1	1	30	10
TH0800X-2A	2	1	30	10
TH0800X-5A	5	1	30	10
TH0800X-10A	10	1	30	10
TH0800X-20A	20	1	30	10
TH0800X-50A	50	1	30	10
TH0800X-100A	100	1	30	10
TH0800X-200A	200	1	30	10
TH0800X-500A	500	1	30	10
TH0800X-1kA	1k	1	30	10
Remarks:  FS is full-scale value

1. Measurement range:(1%~120%)*FS.

TH0400 Precision Coaxial Shunt



Introduction

1. TH0400, a series of 14 various ranges precision coaxial shunts.
2. TH0400 can work in the DC ~ 100 kHz frequency range, converting 1 mA ~ 100 A nominal current into 1 V small current.
3. DC ratio accuracy: 20 ppm;AC/DC difference: 20 ppm; phase displacement: 5.
4. It is suitable for calibration of AC/DC high current source, current sensor, DC shunt, and other occasions where current needs to be measured precisely.

Features

1. The nominal voltage is 1 V, can measure current by directly matching high-precision voltmeters or other measurement instruments.
2. For 1 mA, 10 mA and other high resistance current shunts, combine with the model TH0600 to avoid errors caused by wire connection or input impedance drops of digital meters at high frequency.
3. Compared to 0.5 V, 0.8 V and other voltage value, the 1V nominal voltage has a higher noise ratio, easier current conversion, faster error calculation, and accords with the 1-2-5 sequence principle of modern measurement.
4. Precision components and production processes ensure the resistance value stable, the typical resistance change value is ±5 μΩ/Ω in 1 year, and the maximum resistance change value is ±16 μΩ/Ω in 1 year.
5. Good heat dissipation, lower temperature coefficient and self-heating power factor ensure a good stability.
6. Small phase displacement between the input current and the sampled voltage, the phase displacement is less than 0.0015 ° even at 1 kHz. This feature is critical for the measurement of non-sinusoidal and wideband signals, applied to analyze power quality and calibrate digital power meters.
7. The capacity of loading current and withstanding current impulse is limited, but you can use a set of shunts to obtain a wide range of current measurement.

Specification
Resistance

Inom	Unom (V)	Rnom (Ω)	Initial Deviation (μΩ/Ω)	Stability (μΩ/Ω)	Temperature Coefficient (ppm/K)	Power Coefficien (μΩ/Ω)	Imax Load	Instantaneous Current (<5 s)
1 mA	1	1 k	50	18	2.5	1	2 mA	3 mA
10 mA	1	100	50	18	2.5	1	20 mA	50 mA
20 mA	1	50	50	18	2.5	1	40 mA	100 mA
50 mA	1	20	50	18	2.5	1	100 mA	200 mA
100 mA	1	10	50	18	2.5	2	200 mA	500 mA
200 mA	1	5	50	18	2.5	4	500 mA	1 A
500 mA	1	2	50	18	2.5	12	1 A	2 A
1 A	1	1	50	18	4.0	25	1.5 A	4 A
2 A	1	0.5	50	18	4.0	25	2.5 A	5 A
5 A	1	0.2	50	18	4.0	30	5.5 A	10 A
10 A	1	0.1	50	18	4.0	60	11 A	25 A
20 A	1	0.05	50	18	4.0	75	22 A	40 A
50 A	1	0.02	50	18	4.5	100	55 A	90 A
100 A	1	0.01	50	18	4.5	100	110 A	180 A

1. Remarks:

: In the calibration temperature environment, the deviation of the measured resistance value from the nominal resistance value after the rated DC current is applied for ten minutes. Higher precision can be customized according to user requirements, such as: 20μΩ/Ω.
: The initial deviation of the DC resistance value has included the power coefficient influence error under the nominal current. When measuring other non-nominal currents, additional measurement accuracy should be introduced. The calculation formula is:

Current

Inom	Max. AC/DC Diff. (ppm*FS)			Max. Phase Displacement (μrad)
	50 Hz	1 kHz	100 kHz	53 Hz	400 Hz	1 kHz	10 kHz	50 kHz	100 kHz
1 mA	25	50	150	10	10	15	120	500	1000
10 mA	20	25	50	5	5	10	100	400	800
20 mA	20	25	50	5	5	10	100	400	800
50 mA	20	25	50	5	5	10	100	400	800
100 mA	20	25	25	5	5	10	60	300	500
200 mA	20	25	25	5	5	10	60	300	500
500 mA	20	25	25	5	5	10	60	300	500
1 A	20	25	30	5	5	10	60	300	500
2 A	20	30	50	10	10	15	110	500	1000
5 A	20	30	80	10	15	25	200	1000	2000
10 A	25	30	100	10	20	40	300	1500	3000
20 A	25	30	100	10	25	50	400	2000	4000
50 A	30	50	150	10	30	65	500	2500	5000
100 A	30	50	200	20	40	80	600	3000	6000
Remarks: : FS is full-scale value

Dimension and Weight

Model	Name	Dimension (W × H × D, mm)	Weight (kg)
TH0400 - 1 mA	1 mA shunts	90 × 25 × 25	0.1
TH0400 - 10 mA	10 mA shunts	90 × 25 × 25	0.1
TH0400 - 20 mA	20 mA shunts	90 × 25 × 25	0.1
TH0400 - 50 mA	50 mA shunts	90 × 25 × 25	0.1
TH0400 - 100 mA	100 mA shunts	90 × 25 × 25	0.1
TH0400 - 200 mA	200 mA shunts	110 × 70 × 70	0.2
TH0400 - 500 mA	500 mA shunts	110 × 70 × 70	0.2
TH0400 - 1 A	1 A shunts	110 × 70 × 70	0.2
TH0400 - 2 A	2 A shunts	110 × 70 × 70	0.2
TH0400 - 5 A	5 A shunts	110 × 70 × 70	0.2
TH0400 - 10 A	10 A shunts	180 × 130 × 130	1
TH0400 - 20 A	20 A shunts	180 × 130 × 130	1
TH0400 - 50 A	50 A shunts	260 × 200 × 200	2.5
TH0400 - 100 A	100 A shunts	260 × 200 × 200	2.5
Remarks: Partial or full purchases are available, particular requirements can be customized by resistance and sampled voltage (e.g. 0.5 V and 0.8V).

TH0230 Wiring AC/DC I/V transfer standard


Introduction

1. TH0230, a series of I/V high-precision AC/DC current transfer standard, are divided into A, B, C, D four versions according to the accuracy.
2. TH0230 can work in the DC, 10HZ~5kHz frequency range (3dB signal bandwidth ≥100kHz), converting 0.1A ~ 1kA nominal current into 1V small voltage.
3. AC ratio measurement accuracy: 5 ppm(TH0230D), Best AC ratio measurement accuracy: 100 ppm(TH0230D), supporting positive and negative current measurement.
4. DC current multi-lap zero adjustment potentiometer and locking device, primary input and secondary output have good electrical isolation, high common mode rejection ratio (CMRR).
5. It is convenient to be connected into the large current loop with wiring structure. The secondary output can be equipped with high-precision voltmeter to achieve high-precise measurement of current.
6. It is suitable for calibration of AC/DC high current source/meter (such as calibrator for clamp-meter), current sensor/transformer, electric welder, micro-ohmmeter and other occasions where current needs to be measured precisely.
7. TH0230 can be used with broadband AC/DC V/V voltage divider, dual-channel voltage vector analyzer to set up high-precision AC/DC power/energy measurement system.

Specification

Model	Primary Inom (A)	Secondary Unom (V)	measurement bandwidth (kHz)	Best Ratio Measurement Accuracy (ppm*FS^)
				TH0230A		TH0230B			TH0230C		TH0230D
				DC	AC@ 53Hz	DC	AC@ 53Hz	DC		AC@ 53Hz	DC	AC@ 53Hz
TH0230X-0.1A	0.1	1	≥30	50	250	25	120	10		120	5	120
TH0230X-0.2A	0.2	1	≥30	50	250	25	120	10		120	5	120
TH0230X-0.5A	0.5	1	≥50	50	250	25	120	10		120	5	120
TH0230X-1A	1	1	≥100	50	200	25	100	10		100	5	100
TH0230X-2A	2	1	≥100	50	200	25	100	10		100	5	100
TH0230X-5A	5	1	≥100	50	200	25	100	10		100	5	100
TH0230X-10A	10	1	≥100	50	200	25	100	10		100	5	100
TH0230X-20A	20	1	≥100	50	200	25	100	10		100	5	100
TH0230X-50A	50	1	≥100	50	200	25	100	10		100	5	100
TH0230X-100A	100	1	≥100	50	200	25	100	10		100	5	100
TH0230X-200A	200	1	≥100	50	200	25	100	10		100	5	100
TH0230X-500A	500	1	≥100	50	200	25	100	10		100	5	100
TH0230X-1kA	1k	1	≥100	50	250	25	120	10		120	7	120
Note : FS is full-scale value

1. Measurement range:(10%~110%)*FS,positive and negative current measurement;
2. Measuring frequency:DC,10Hz~5kHz

TH0240 Threading AC/DC I/V transfer standard

Introduction

1. TH0240, a series of I/V high-precision AC/DC current transfer standard, are divided into A, B, C, D four versions according to the accuracy.
2. TH0230 can work in the DC, 10HZ~5kHz frequency range (3dB signal bandwidth ≥100kHz), converting 200A ~ 10kA nominal current into 1V small voltage.
3. Best DC ratio measurement accuracy: 5 ppm(TH0240D), Best AC ratio measurement accuracy: 100 ppm(TH0240D), supporting positive and negative current measurement.
4. DC current multi-lap zero adjustment potentiometer and locking device, primary input and secondary output have good electrical isolation, high common mode rejection ratio (CMRR).
5. It is convenient to be connected into the large current loop with threading structure. The secondary output can be equipped with high-precision voltmeter to achieve high-precise measurement of current.
6. It is suitable for calibration of AC-DC high current source/meter (such as calibrator for clamp-meter), current sensor/transformer, electric welder, micro-ohmmeter and other occasions where current needs to be measured.
7. TH0230 can be used with broadband AC/DC V/V voltage divider, dual-channel voltage vector analyzer to set up high-precision AC/DC power/energy measurement system.

Specification

Model	Primary Inom (A)	Secondary Unom (V)	measurement bandwidth (kHz)	Best Ratio Measurement Accuracy (ppm*FS^)
				TH0240A		TH0240B		TH0240C		TH0240D
				DC	AC@ 53Hz	DC	AC@ 53Hz	DC	AC@ 53Hz	DC	AC@ 53Hz
TH0240X-200A	200	1	≥100	50	200	25	100	10	100	-	-
TH0240X-500A	500	1	≥100	50	200	25	100	10	100	5	50
TH0240X-1kA	1k	1	≥100	50	200	25	100	10	100	5	50
TH0240X-2kA	2k	1	≥100	50	200	25	100	10	100	5	50
TH0240X-5kA	5k	1	≥100	50	200	25	120	10	120	-	-
TH0240X-10kA	10k	1	≥100	50	200	25	150	10	-	-	-
Note : FS is full-scale value

1. Measurement range:(10%~110%)*FS,positive and negative current measurement;
2. Measuring frequency:DC,10Hz~5kHz