Tonghui TH2811D LCR Digital Bridge for

Component Testing 100Hz-10kHz 0.2% Accuracy

5-Terminal

Reliable LCR Measurement for Electronic Component Testing and Inspection

The Tonghui TH2811D LCR Digital Bridge is a benchtop instrument designed for testing the electrical parameters of passive electronic components, including inductors, capacitors, resistors, and impedance. With a basic measurement accuracy of ±0.2%, four selectable test frequencies, and two test signal levels, it provides practical measurement capabilities for electronic component testing, incoming quality inspection, and routine laboratory work.

Featuring a five-terminal test architecture, automatic and hold range modes, and selectable series or parallel equivalent circuit models, the TH2811D supports different component measurement requirements. Its backlit LCD displays primary and secondary measurement parameters together, while physical keys make local operation straightforward. The instrument is suitable for electronics manufacturers, repair technicians, educational laboratories, and component distributors.

Key Features

1. Five-Terminal Test Architecture

The TH2811D adopts a five-terminal test configuration for benchtop LCR measurement. Used with the appropriate test fixture and leads, this architecture supports component testing and helps reduce the influence of lead and contact resistance in applicable measurement setups.

2. ±0.2% Basic Measurement Accuracy

With a specified basic measurement accuracy of ±0.2%, the TH2811D is suitable for routine measurement and verification of passive electronic components. It provides a practical solution for incoming inspection, component checks, and general electronics testing.

3. Four Selectable Test Frequencies

Choose from four fixed test frequencies: 100Hz, 120Hz, 1kHz, and 10kHz. This allows users to select a suitable test frequency according to the component and measurement requirements. The specified frequency accuracy is ±0.01%.

4. Two Selectable Test Signal Levels

The instrument provides two test signal levels: 0.3Vrms and 1Vrms. Users can select the available signal level according to the requirements of the component being measured.

5. Wide Measurement Range for Passive Components

The TH2811D measures impedance, resistance, capacitance, inductance, dissipation factor, and quality factor across broad measurement ranges. This makes it suitable for testing a variety of passive components used in electronic circuits.

6. Series and Parallel Equivalent Circuit Modes

Select between series and parallel equivalent circuit modes according to the component and measurement requirements. Automatic range and hold range modes are also available to support flexible measurement operation.

7. Backlit LCD and Simple Local Operation

The backlit LCD displays primary and secondary measurement parameters together, with a five-digit primary parameter display. Physical keys provide direct access to instrument functions, making routine component testing easy to operate without programming.

8. Open-Circuit and Short-Circuit Correction

Open-circuit and short-circuit correction functions help compensate for fixture-related measurement effects. A sweep-frequency zeroing function is also provided to support measurement preparation.

Applications

1. Electronic Component Incoming Inspection

Measure resistance, capacitance, inductance, and related parameters during incoming inspection and batch sampling. The TH2811D helps quality inspection teams verify component values before parts enter the production process.

2. Electronic Circuit Board Repair

Use the LCR digital bridge to check passive component parameters during circuit board troubleshooting and maintenance. It provides additional measurement information beyond basic multimeter resistance or continuity checks.

3. Vocational and Technical Education

Suitable for electronics teaching laboratories and vocational training. Students can use the instrument to learn LCR measurement, impedance characteristics, and the differences between series and parallel equivalent circuit models.

4. Small R&D Laboratories and Maker Workshops

Supports routine verification of passive component parameters during circuit prototyping and basic electronics development.

5. Electronic Component Trading and Warehousing

Perform incoming verification and batch sampling of resistors, capacitors, and inductors to help check whether component parameters are consistent with supplied specifications.

Quality Check and Terms of Service

Package Includes

• Tonghui TH2811D LCR Digital Bridge × 1

• TH26010 Short-Circuit Calibration Standard × 1

• TH26001A Four-Terminal Test Fixture × 1

• TH26004S-1 Four-Terminal Kelvin Test Leads × 1

• AC Power Cord × 1

• User Manual × 1

• Certificate of Conformity × 1

Product Inspection

The instrument and included accessories should be checked before shipment to ensure that the package is complete and the product is in good condition.

Customer Support

Please contact us if you have questions about product specifications, included accessories, or operation. We will assist with your inquiry.

Technical Specifications

1. Measurement Functions

2. Test Signal Specifications

3. Measurement Ranges

4. Display and Operation

5. Power and Environmental Specifications

6. Physical Specifications

Why Choose the Tonghui TH2811D?

The Tonghui TH2811D combines practical LCR measurement functions with straightforward benchtop operation. Its ±0.2% basic measurement accuracy, five-terminal test architecture, four selectable test frequencies, two signal levels, and broad component measurement ranges make it a useful instrument for routine passive component testing.

For electronics manufacturers, repair technicians, educational laboratories, and component distributors looking for a straightforward LCR measurement instrument, the TH2811D provides essential measurement capabilities without the added complexity of remote programming or automatic sorting systems.