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
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
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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
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
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
Parallel 8-channel Hipot Tester
TH9010
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
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
10-channel turn-to-turn Insulation Scanner
TH28831
Changzhou Tonghui Electronic Co., Ltd.
Work together with TH2883, expand single channel to 10-channel
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product
Automatic Transformer Test System
TH2840BX
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
LCR Meter
TH2826
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
TH2882AS-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
Electrolytic Capacitor Leakage Current Meter
TH2686N
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
Parallel 4-channel Hipot Tester
TH9010A
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
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
Digital Multimeter
TH1942
Changzhou Tonghui Electronic Co., Ltd.
Digital Mutimeter TH1942 4 1/2-digit is voltage/current/resistance tester with multi functions and low cost. The instrument can stably perform measurement at high speed as several times as other instruments at the same level. It provides excellent performance, such as maximum reading of 51,000 counts, maximum DC voltage accuracy of 0.02%, and low cost to give you a best choice.
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product
LCR Meter
TH2810D
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.















