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
Impedance Analyzer
TH2839
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Changzhou Tonghui Electronic Co., Ltd.
■ Freq: 20Hz-10MHz, max. resolution 1mHz ■ Test Accuracy: 0.05% ■ Test Speed: Max.7.7ms ■ Auto-balance bridge technology, 4-terminal pair
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Product
Handleld LCR Meter
TH2821B
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Changzhou Tonghui Electronic Co., Ltd.
■ 100Hz, 120Hz, 1kHz ■ Basic accuracy: 0.3% ■ Test speed: 333ms ■ Simultaneous display of primary and secondary parameters
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Product
Parallel 8-channel Hipot Tester
TH9010
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Changzhou Tonghui Electronic Co., Ltd.
8-channel parallel output of withstand voltage, and each channel is non-interfering ■ Output: AC: 5kV/10mA; DC: 6kV/5mA ■ Insulation resistance test voltage: 0.10kV -1.00kV
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Product
Precision LCR Meter
TH2817A
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Changzhou Tonghui Electronic Co., Ltd.
TH2817A 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, TH2817A 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 100kHz for TH2817A ), 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. TH2817A 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
Impulse Winding Tester
TH2883S4-5
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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
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
Electrolytic Capacitor Leakage Current Meter
TH2686C
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Changzhou Tonghui Electronic Co., Ltd.
■ Test voltage: 0-200V, 0-500V ■ Voltage accuracy: 2% set value + 2 words ■ Measuring range: 0-30mA, 10 gears ■ Current accuracy: 2% of reading +0.5 grid
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Product
LCR Meter
TH2817B+
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Changzhou Tonghui Electronic Co., Ltd.
■ Freq: 50Hz-100kHz, 10 frequency points ■ Test Accuracy: 0.1% ■ Test Speed: Max.19ms ■ 4.3 inch TFT liquid crystal display
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Product
Precision LCR Meter
TH2840A
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Changzhou Tonghui Electronic Co., Ltd.
■ Test frequency: 20Hz-500kHz ■ High stability and consistency: 14 range configurations
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Product
LCR Meter
TH2810D
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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.
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Product
Automatic Component Analyzer
TH2829A
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Changzhou Tonghui Electronic Co., Ltd.
By dint of leading impedance measurement technology and rich R&D experience, Tonghui continuously introduces representative impedance measurement product --- TH2829 series automatic component analyzer is another excellent product we have produced. TH2829A automatic component analyzer possesses a higher test speed, a more comprehensive analysis function and friendly human-computer interactive experience by adopting the latest high-speed processor and a new software system. Well-designed measuring circuit and optimized algorithms further enhance the test stability of low-D capacitance and high-Q inductors. The instrument is provided with 10V AC test level, 10V/100mA bias current and standalone 10V/50mA DC current, making it convenient for applying in the test of all kinds of active/ passive devices. Main/ sub parameters display, enhanced display system design, 150-points list sweep and graphical analysis capabilities of multiple parameters meet the most application requirements of customers.
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Product
Automatic Transformer Comprehensive Test System
TH2837LX
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Changzhou Tonghui Electronic Co., Ltd.
Automatic Transformer Comprehensive Test System
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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
Handleld LCR Meter
TH2822A
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Changzhou Tonghui Electronic Co., Ltd.
With its advanced impedance test technology, Tonghui has launched TH2822 series handheld LCR meters. This series currently possess the most powerful functions and outstanding performance in this industry comparable with bench LCR meters. Meanwhile it is the achievement of Tonghui after years of efforts and research in the passive-component testing field.
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Product
LCR Meter
TH2817C+
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Changzhou Tonghui Electronic Co., Ltd.
■ Freq: 50Hz-100kHz, 10 frequency points ■ Test Accuracy: 0.1% ■ Test Speed: Max.19ms, support low frequency and high speed: TX4+3ms















