Changzhou Tonghui Electronic Co., Ltd.
Changzhou Tonghui Electronic Co. Ltd. was founded in 1994. It is a provincial high-tech enterprise integrating R&D, manufacturing and marketing. It is located in the National Development Zone – Changzhou Hi-tech Industry Development Zone with superior geographical position and beautiful natural environment. Covering a land area of 14000 m2 with construction area of 8200 m2 (A new plant with 30000 m2 land area and 30000 m2 construction area in the first phase is under construction). The company has more than 180 employees. More than 70% have college education or above. R&D personnel takes up more than 25% of total employees, and annual R&D investment exceeds 10% of company’s annual revenue. For the past more than 20 years, Tonghui has been devoting itself to the research and development of electronic measurement instruments. Bearing the faith of technology first, we are struggling to promote the development of domestic measurement instruments and minimize the distance with the world advanced instruments. The company establishes “Changzhou electronic component measuring instrument engineering research center”, which has undertaken the ministry/province/city/district science and technology project for many times, and won the provincial/city science and technology progress award for many times. As a result of years of effort, Tonghui has grown to be a well-known brand in electronic instrument industry.
- +86-519-8519-5566
- 0519-85109972
- lq@tonghui.com.cn
- No.1 Xinzhu Road,
Xinbei District,
Changzhou, Jiangsu
China
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Product
Precision LCR Meter
TH2816B
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Changzhou Tonghui Electronic Co., Ltd.
TH2816B is a new precision LCR meter combined with years of technical experience and newest measurement technology of instrument industry. With powerful measurement functions, high performance and low cost, TH2816B has been one of the world advanced instruments, and it provides users a super value measurement resolution and experience. The meter offers stable 6 digit resolution, wide frequency range ( 50Hz to 200kHz for TH2816AB), programmable signal level (0.01V to 2.0V), up to 30 meas/sec measurement rate, 9 measurement ranges, 30Ω or 100Ω constant output impedance and friendly operation interface. TH2816B can be used for incoming inspection of components, quality control of product line and high accuracy laboratory use. The HANDLER, GPIB, RS232C interfaces make it easy to build an automatic component test system,
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Product
Precision Capacitance Meter
TH2638A
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Changzhou Tonghui Electronic Co., Ltd.
TH2638 series is a new precision capacitance meter with higher test frequency. With small size and portable appearance, it is convenient for use on the shelves. With basic accuracy of ±0.07%, loss accuracy of 0.0005, test frequency up to 1MHz, 4.3-inch LCD screen, selectable Chinese-English operation interface, TH2638 series is easy to operate and provide fast and reliable test for ceramic capacitor production. Also, it can test all kinds of capacitors from low value to high value. The results of testing one capacitor for several times are quite stable and accurate, even for lower value capacitors. The tester is compatible with SCPI command set, and configured with manipulator and scanner interface, the scanner interface can scan the open/short/ load error calibration in each channel, 256 channels at most. In low frequency, there is signal level compensation function. When the impedance is very small, the internal resistance in signal source and test cable will cause the voltage on terminal of DUT lower than the set range, then this function will adjust the level to the set range.
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Product
Impulse Winding Tester
TH2883-5
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Changzhou Tonghui Electronic Co., Ltd.
TH2883 series products are newly developed impulse winding testers by Tonghui. This product line makes Tonghui as the first provider of impulse winding tester from low voltage of 30V to high voltage of 10kV, single channel to multichannel (Max.:8 channels) in this industry. The instrument adopts popular 32 bit CPU and high density SMD technology, 65k color 7-inch TFT wide display screen, bringing ease for your eyes and convenience to your operation. The minimum impulse voltage of 30V, maximum impulse voltage output of 10kV, winding test of 1uH inductance value, sampling rate of 200Msps, memory depth of 6k bytes makes your test accurately. The usage of standard sample average, application of demagnetized impulse, high bandwidth analog acquisition circuit, technology of high-fidelity corona extraction as well as the opening of non-destructive test reflect the design philosophy “customer-oriented, share the future technology with you” of Tonghui.
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Product
Precision LCR Meter
TH2838A
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Changzhou Tonghui Electronic Co., Ltd.
■ Freq: 20Hz-1MHz, resolution: 0.1mHz max. ■ Test Accuracy: 0.05% ■ Test Speed: Max.5.6ms ■ Auto-balance bridge technology, 4-terminal pair ■ High stability and consistency: up to 15 test ranges ■ High resolution: 7-inch, 800*600
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Product
Impedance Analyzer
TH2839A
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Changzhou Tonghui Electronic Co., Ltd.
■ Freq: 20Hz-5MHz, max. resolution 1mHz ■ Test Accuracy: 0.05% ■ Test Speed: Max.7.7ms ■ Auto-balance bridge technology, 4-terminal pair ■ High stability and consistency: up to 15 test ranges
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Product
Precision Impedance Analyzer
TH2851-030
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Changzhou Tonghui Electronic Co., Ltd.
■ Test frequency: 10Hz-30MHz ■ High precision: using automatic balance bridge technology, four-terminal pair test configuration
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Product
Impulse Winding Tester
TH2883S8-5
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Changzhou Tonghui Electronic Co., Ltd.
TH2883 series products are newly developed impulse winding testers by Tonghui. This product line makes Tonghui as the first provider of impulse winding tester from low voltage of 30V to high voltage of 10kV, single channel to multichannel (Max.:8 channels) in this industry. The instrument adopts popular 32 bit CPU and high density SMD technology, 65k color 7-inch TFT wide display screen, bringing ease for your eyes and convenience to your operation. The impulse voltage of100V~5000V, maximum 8 channel sweep test, maximum 20 test procedures, sampling rate of 200Msps, memory depth of 6k bytes makes your test accurately.The usage of standard sample average, application of demagnetized impulse, high bandwidth analog acquisition circuit, technology of high-fidelity corona extraction as well as the opening of non-destructive test reflect the design philosophy “customer-oriented, share the future technology with you” of Tonghui.
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Product
Automatic Transformer Test System
TH2829CX
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Changzhou Tonghui Electronic Co., Ltd.
Number of Test PIN: 20 ■ Frequency: 20Hz-1MHz, Resolution: 0.5mHz ■ Signal Level: 5mV-2Vrms(Option:2mV-10Vrms) ■ Test Speed: max. 13ms ■ 7-inch TFT LCD display with a resolution of 800×RGB×480
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Product
Electrolytic Capacitor Leakage Current Meter
TH2686N
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Changzhou Tonghui Electronic Co., Ltd.
■ Test voltage: 0-200V, 0-500V ■ Voltage accuracy: 1% set value + 1 word ■ Measuring range: 10nA-19.99mA, resolution: 1nA ■ Current accuracy: 2% reading + 2 words ■ Intelligent type, microprocessor control
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Product
Precision Impedance Analyzer
TH2851-080
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Changzhou Tonghui Electronic Co., Ltd.
■ Test frequency: 10Hz-80MHz ■ High precision: using automatic balance bridge technology, four-terminal pair test configuration
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Product
DC Bias Current Source
TH1778B
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Changzhou Tonghui Electronic Co., Ltd.
■ Test Frequency: 0Hz - 2MHz ■ Provide 0~20A of constant current output ■ No support of output extension
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Product
Handheld Capacitance Meter
TH2622
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Changzhou Tonghui Electronic Co., Ltd.
Tonghui has extended the hanheld meter to a professional wide-range capacitance test. TH2622 handheld capacitance meter adopts ultra-low consumption design and high density SMD technology. Its measurement range can be automatically switched. The capacitance measurement range is up to 199.99mF, maximum reading 11,000. Gorgeously once molded dual-color shell, dual-display LCD screen and easy operation are the characteristics of the meter.
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Product
Compact LCR Meter
TH2832
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Changzhou Tonghui Electronic Co., Ltd.
Adopting the latest technology & high density circuit design and concentrating the essence of LCR test, TH283X series is a new generation compact LCR meter of low cost and high performance. Instead of traditional mechanical power switch, it adopts software control power switch. The basic accuracy of 0.05% and good test stability can compare favourably with those high-end models. Being equipped with
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Product
Precision Impedance Analyzer
TH2851-130
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Changzhou Tonghui Electronic Co., Ltd.
■ Test frequency: 10Hz-130MHz ■ High precision: using automatic balance bridge technology, four-terminal pair test configuration ■ High stability and consistency ■ High speed: the fastest test speed up to 5ms
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Product
LCR Meter
TH2811D
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Changzhou Tonghui Electronic Co., Ltd.
TH2810D/TH2811D LCR meter is our newly developed successor instrument for low frequency component measurement. TH2810D/TH2811D with its latest measurement technologies, large character LCD display, surface mount technics, easy of use and excellent appearance can be used for quality control on production line, incoming inspection of components and automatic test system. The RS-232C interface can be used to carry out remote control and statistics and analysis of measurement results.
