DC Bias Current Source

TH1778A - Changzhou Tonghui Electronic Co., Ltd. (Tonghui)

The instrument adopts a new generation AC/DC superposition test theory to adapt test requirements for high precision and high frequency. The built-in embedded MCU with high-performance can quickly respond to host and slave machine condition or malfunction and make real time indication, which helps improve the work efficiency. The new designed friendly graphical operation interface, included 5-foot control modes and full touch operation provides convenience and efficiency for users. New file management system with easy, prompt and accurate operation can save a group of real-time setting file and 99 groups of user defined setting files. It can provide pushed information indication and cache 2 real-time information. Being provided with two modes of SCPI instruction systems, it is convenient to set up production lines or single machine test. Also, it can connect with any device with serial port and which refer to the SCPI instruction system design of this machine.

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Component Parameter Testers

Changzhou Tonghui Electronic Co., Ltd.

Tonghui Component Parameter Testers - impedance analyzers, LCR meters, capacitance meters, inductance meters, etc.

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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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Automatic Component Analyzer

TH2829A - 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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Capacitor Leakage Current/IR Meter

TH2689 - 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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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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Compact LCR Meter

TH2832 - Changzhou Tonghui Electronic Co., Ltd.

Adopting the latest technology & high density circuit design and concentrating the essence of LCR test, TH283X series is a new generation compact LCR meter of low cost and high performance. Instead of traditional mechanical power switch, it adopts software control power switch. The basic accuracy of 0.05% and good test stability can compare favourably with those high-end models. Being equipped with

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Compact LCR Meter

TH2830 - Changzhou Tonghui Electronic Co., Ltd.

Adopting the latest technology & high density circuit design and concentrating the essence of LCR test, TH283X series is a new generation compact LCR meter of low cost and high performance. Instead of traditional mechanical power switch, it adopts software control power switch. The basic accuracy of 0.05% and good test stability can compare favourably with those high-end models. Being equipped with

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DC Bias Current Source

TH1778AS - 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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DC Bias Current Source

TH1778B - Changzhou Tonghui Electronic Co., Ltd.

■ Test Frequency: 0Hz - 2MHz ■ Provide 0~20A of constant current output ■ No support of output extension

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Electrolytic Capacitor Leakage Current Meter

TH2686C - 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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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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Handheld Capacitance Meter

TH2622 - Changzhou Tonghui Electronic Co., Ltd.

Tonghui has extended the hanheld meter to a professional wide-range capacitance test. TH2622 handheld capacitance meter adopts ultra-low consumption design and high density SMD technology. Its measurement range can be automatically switched. The capacitance measurement range is up to 199.99mF, maximum reading 11,000. Gorgeously once molded dual-color shell, dual-display LCD screen and easy operation are the characteristics of the meter.

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Handleld LCR Meter

TH2822E - 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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Handleld LCR Meter

TH2822C - 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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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.

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Handleld LCR Meter

TH2822A - 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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Handleld LCR Meter

TH2821B - 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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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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Impedance Analyzer

TH2839A - 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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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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LCR Meter

TH2817CX - Changzhou Tonghui Electronic Co., Ltd.

*Freq: 50HZ-100HZ, 10 frequency points*Test Accuracy: 0.1%*Test Speed: Max. 50ms

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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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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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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.

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LCR Meter

TH2826A - Changzhou Tonghui Electronic Co., Ltd.

TH2826A 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 2MHz). 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, TH2826A 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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