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
Categories
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product
Precision LCR Meter
TH2838
Changzhou Tonghui Electronic Co., Ltd.
■ Freq: 20Hz-2MHz, 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
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product
AC/DC/IR Hipot Tester
TH9310
Changzhou Tonghui Electronic Co., Ltd.
TH9310A AC/DC withstanding voltage & insulation tester is a kind of small power Hipot Tester. Due to simple and compact structure, mature technique, brand new structure and operating interface, the operation becomes more convenient, and more practical functions are included as well. TH9310A can be widely applied in transformer, device, component especially for winding safety inspection.Withstanding voltage test
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product
Precision Capacitance Meter
TH2638B
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
High Precision IR Tester
TH2684A
Changzhou Tonghui Electronic Co., Ltd.
TH2684 High Precision IR Tester is an intelligent measurement instrument that is used for rapid measurement on IR Tester is an intelligent measurement instrument that is used for rapid measurement on IR properties of electronic parts and components, dielectric materials, equipments, cables, etc. Large LCD and user friendly menu provide you easier operation.
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product
Precision LCR Meter
TH2828
Changzhou Tonghui Electronic Co., Ltd.
■ Freq: 20Hz-1MHz, resolution: 6000 dots ■ Basic accuracy: 0.05% ■ Test speed: the fastest 32ms/time ■ Test principle: automatic balance bridge
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product
Automatic Transformer Test System
TH2829CX
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
AC Hipot Tester
TH9310B
Changzhou Tonghui Electronic Co., Ltd.
TH9310B AC withstanding voltage & insulation tester is a kind of small power Hipot Tester. Due to simple and compact structure, mature technique, brand new structure and operating interface, the operation becomes more convenient, and more practical functions are included as well. TH9310B can be widely applied in transformer, device, component especially for winding safety inspection.Withstanding voltage test
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product
Impulse Winding Tester
TH2882A-5
Changzhou Tonghui Electronic Co., Ltd.
Due to the influence of coil wire material, magnetic material, framework and manufacture technics etc., coil products (such as transformers, motors, etc.) may have defects of low insulation between coil layers, circles and leads. TH2882A series impulse winding tester, adopting high-speed sampling technique, is a new generation analysis test instrument for insulation performance of coil products.
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product
Automatic Component Analyzer
TH2829C
Changzhou Tonghui Electronic Co., Ltd.
■ Freq: 20Hz-1MHz, resolution: 1mHz max. ■ Test Accuracy: 0.05% ■ Test Speed: 9ms ■ 800×RGB×480 7-inch TFT LCD display ■ Strongest signal source selection:
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product
Impulse Winding Tester
TH2883S4-5
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
LCR Meter
TH2811D
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
LCR Meter
TL2812D
Changzhou Tonghui Electronic Co., Ltd.
■ 100Hz, 120Hz, 1kHz, 10kHz 4 dots ■ Basic accuracy: 0.25% ■ Test speed: the fastest 83ms ■ Output impedance 100Ω
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product
LCR Meter
TH2817B+
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
TH2827A
Changzhou Tonghui Electronic Co., Ltd.
TH2827A is a new precision LCR meter with various functions and a higher test frequency. With small size and portable appearance, it is convenient for use on the shelves. This instrument has a basic accuracy of 0.05%, maximum test frequency of 300kHz and resolution of 10 mHz. It is easy to operate with a 4.3-inch LCD screen as well as selectable Chinese and English operation interfaces. Integrated transformer test function greatly improve the test efficiency. The instrument is also provided with multiple interfaces which can meet various requirements of the automatic sorting test, data transmission and storage.
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product
Handleld LCR Meter
TH2822D
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.
