TH0460 Coaxial Shunt Multiplexing Unit

Model: TH0460
Brand: TUNKIA

Product Description

TH0460 Coaxial Shunt Multiplexing Unit

1. Summary

TH0460 is a precision and high-efficiency coaxial shunt multiplexing unit device. It adopts ultra-sensitive, high-efficiency, polarization-sealed relay technology, which can well eliminate the influence of the relay itself. The built-in coaxial shunt is very suitable for calibrating multiple AC and DC current ranges.

2. Feature

Input Current Range: 0 ~ 20 A
Working Frequency: DC ~ 100 kHz
AC/DC Difference: ≤ 30 ppm@53 Hz
Optimal Phase Displacement: 5 μrad
Nominal Output Voltage: 1 V ( customizable)
Support External Voltage Input（Max ≤ 1.2 V）
Multiple voltage output channels, support Type-N type and banana head two wiring methods.
Ability to withstand instantaneous current shock.
Has greater current carrying capacity.
Built-in buffer to reduce output impedance (1mA, 10mA)
Extremely low temperature coefficient, power coefficient, good heat dissipation structure.

3. Application

Calibrating AC and DC Current Sources.
Calibrating AC and DC Voltmeters.

☆ Set Up the Automatic Test System for Precision Wideband Current Source.

l It can be used with measuring devices such as TH2000 Vector Voltage Analyzer/TD1310 Precision AC/DC Standard Meter to set up a precision wideband current source automatic test system.

l Computer software control, automatically switch measurement channels according to different ranges of AC and DC current sources.

Specification

4. Specification

4.1 Resistance

Range	Nominal Resistance( Ω )	Initial Deviation^[^1] ( ± μΩ/Ω )	Year Stability ( ± μΩ/Ω )	Temperature Coefficient ( ± μΩ/Ω/K )	Power Factor^[2] ( ± μΩ/Ω )
1 mA	1000	50	18	2.5	1
10 mA	100	50	18	2.5	1
100 mA	10	30	12	2.0	1
1 A	1	30	12	2.0	3
10 A	0.1	30	12	2.5	5
20 A	0.05	30	12	2.5	8
Note[1]：The initial deviation refers to the deviation between the measured resistance value and the nominal resistance value after the rated DC current is applied for 10 minutes under the calibration temperature environment; [2]：The initial deviation of the DC resistance has included the power factor influence error under the nominal current. When measuring other non-nominal current values, additional measurement uncertainty should be introduced. The calculation formula is:

4.2 Current Measurement

Range	Primary Nominal Current ( A )	Secondary Nominal Voltage ( V )	AC/DC Difference^[^3] ( ppm )			Maximum Working Current( A )	Instant Current ( A, <5 s )
Range	Primary Nominal Current ( A )	Secondary Nominal Voltage ( V )	50 Hz	1 kHz	100 kHz	Maximum Working Current( A )	Instant Current ( A, <5 s )
1 mA	1 m	1	25	50	150	2 m	3 m
10 mA	10 m	1	20	25	50	20 m	150 m
100 mA	100 m	1	20	25	25	200 m	1.5
1 A	1	1	20	25	30	1.5	4
10 A	10	1	20	30	100	11	30
20 A	20	1	20	30	100	22	50
Note[3]：The measured value of AC current should be calculated according to the following formula, and the unit of AC/ DC difference is ppm：

4.3 Phase Displacement

Current Range	Phase Displacement ( μrad )
Current Range	53 Hz	400 Hz	1 kHz	10 kHz	50 kHz	100 kHz
1 mA	10	10	15	100	500	1000
10 mA	5	5	10	100	400	800
100 mA	5	5	10	30	150	300
1 A	5	5	10	30	150	300
10 A	10	20	40	150	800	1600
20 A	10	25	50	200	1000	2000

5. General Specifications

Power Supply	AC ( 220 ± 22 ) V，( 50 ± 2 ) Hz；
Warm-up Time	Not less than 1 hour, and the reheating time after shutdown halfway should not be less than twice the shutdown time;
Temperature Performance	Working temperature: 13 °C ~ 33 °C； Calibration temperature: 18 °C ~ 28 °C； Storage temperature: 5 °C ~ 45 °C Note: When stored in a harsh temperature environment, it may cause a temporary change in the resistance value and return to the original resistance value within the next 30 days.
Humidity Performance	Working humidity: < 50% R·H Storage humidity: (15%~80%) R·H, non-condensing
Altitude	< 3000 m
Connection Method	Input connection: Type-N female plug; Output connection: Type-N female plug, banana socket;

Download

{"json":"[{\"downloadUrl\":\"//ijrorwxhqkiklq5p-static.micyjz.com/TH0460+Coaxial+Shunt+Multiplexing+Unit-aidliBplKmolkSRrkorlipkiq.pdf?dp=1\",\"encodeFileId\":\"rgUfKswpTJzO\",\"fileId\":3709994,\"fileName\":\"TH0460 Coaxial Shunt Multiplexing Unit.pdf\",\"fileType\":\"pdf\",\"photoUrlNormal\":\"//rirorwxhqkiklq5p-static.micyjz.com/static/assets/widget/images/downloadNew/pdf.svg\",\"pname\":\"TH0460 Coaxial Shunt Multiplexing Unit.pdf\",\"name\":\"TH0460 Coaxial Shunt Multiplexing Unit.pdf\"}]","type":"1"}