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
Capacitor Leakage Current/IR Meter
TH2689A
Changzhou Tonghui Electronic Co., Ltd.
TH 2689/TH2689A provides max. test voltage: 800v/500v, charge current: 0.5mA─500.0mA( if >100V, the max. power 50W can limit). It is mainly applied in capacitance leakage current, insulation resistance and aluminum electrolysis capacitance anode foil pressure test. Also it can be applied in the confirmation of annihilator, zener diode, neonbulb .etc and leakage current test. Standard Handler interface, stable and rapid test, to reach the sorting effect
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product
AC/DC Withstanding Voltage& Resistance Tester
TH9201B
Changzhou Tonghui Electronic Co., Ltd.
TH9201 AC/DC withstanding voltage & insulation tester is a kind of 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. TH9201S can be widely applied in transformer, device, component especially for winding safety inspection.Withstanding voltage test
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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
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
Precision LCR Meter
TH2838H
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 ■ High resolution: 7-inch, 800*600
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product
Precision LCR Meter
TH2838A
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
Automatic Transformer Test System
TH2840NX
Changzhou Tonghui Electronic Co., Ltd.
■ The test speed is as high as 1000 times/s (>10kHz), without relay action time ■ Test level up to 20Vrms ■ The bias voltage is built-in ±40V/±100mA/2A ■ Up to 288 test pins (only TH2840NX) ■ Industry-friendly user experience: Linux bottom layer, built-in help file
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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
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
Impedance Analyzer
TH2839
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
8-unit Four-channel Scan Expander
TH90101
Changzhou Tonghui Electronic Co., Ltd.
■ Expand each channel of TH9010 to 4 ■ TH9010 supports 4 four-channel scanners at most which means one instrument can be extended to 128 channels
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product
Precision Impedance Analyzer
TH2851-080
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
Precision LCR Meter
TH2840B
Changzhou Tonghui Electronic Co., Ltd.
■ Test frequency: 20Hz-2MHz ■ High stability and consistency: 14 range configurations ■ High power: signal level: 20VAC/100mAAC
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product
Impulse Winding Tester
TH2883S8-5
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
Automatic Transformer Test System
TH2840AX
Changzhou Tonghui Electronic Co., Ltd.
■ The test speed is as high as 1000 times/s (>10kHz), without relay action time ■ Test level up to 20Vrms ■ The bias voltage is built-in ±40V/±100mA/2A ■ Up to 288 test pins (only TH2840NX) ■ Industry-friendly user experience: Linux bottom layer, built-in help file















