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
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 Transformer Test System
TH2840BX
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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
DC Bias Current Source
TH1778AS
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Changzhou Tonghui Electronic Co., Ltd.
■ Test Frequency: 0Hz - 2MHz ■ Provide 0~20A of constant current output, and must be controlled by TH1778A ■ Support 6 machines on line at most and
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Product
Precision Impedance Analyzer
TH2851-015
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Changzhou Tonghui Electronic Co., Ltd.
■ Test frequency: 10Hz-15MHz ■ High precision: using automatic balance bridge technology, four-terminal pair test configuration
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Product
LCR Meter
TH2826
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Changzhou Tonghui Electronic Co., Ltd.
TH2826 series is a new generation impedance test instrument and firstly in conformity with LXI standard inland. It fulfills most low-voltage parameter measurement needs for components and materials with its basic accuracy (0.1%), wide frequency range(from 20Hz to 5MHz). The instrument is widely applied in microphone, resonator, inductor, ceramic capacitor, LCD, varactor and transformer .etc to analyze electrical performance and test low-ESR capacitor and high-Q inductor. With the super high test speed, TH2826 series is especially for frequency response curve analyzing of detector and piezoelectric device on auto production line. Its multiple output impedance mode can be used for different standards of inductor or transformer manufacturers.
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Product
Impulse Winding Tester
TH2883-1
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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
Capacitor Leakage Current/IR Meter
TH2689
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Changzhou Tonghui Electronic Co., Ltd.
TH2689/TH2689A is a rapid and precise capacitance leakage current insulation resistance tester. The max. test speed of 18 times/second, good performance and the suitable price provide the user an optimal choice.
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Product
High Precision IR Tester
TH2684
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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
TH2838H
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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
Handleld LCR Meter
TH2822C
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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
Parallel 4-channel Hipot Tester
TH9010A
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Changzhou Tonghui Electronic Co., Ltd.
4-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
Impulse Winding Tester
TH2882AS-5
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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
Capacitor Leakage Current/IR Meter
TH2689A
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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
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
Impulse Winding Tester
TH2882A-5
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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.















