Key facts
- Manuals
- 10
- Languages
- ZH
- Last added
- 2026-10-01
Featured Tonghui manuals

Tonghui TH9310/20 Series Instrument User Manual
This manual provides detailed instructions for installing, using, and maintaining the TH9310/20 series instrument. It includes safety warnings, panel descriptions, basic operation steps, and a full SCPI command reference.
The document also lists technical specifications, upgrade procedures, and version history, helping users configure the instrument for high‑voltage testing, insulation resistance, and other measurement functions. This manual is written in Chinese.
Covers: Installation and Use · Operating Guidelines and Safety Measures · Instrument Panel Overview · Basic Operations · Serial Command Set (SCPI) · Appendix – Model Specifications

Tonghui TH2830/TH2831/TH2832 LCR Digital Bridge User Guide
The guide introduces the TH283X series compact LCR digital bridge, describing the front‑panel and rear‑panel controls, power‑on sequence, and the standard test fixtures for through‑hole components such as CBB, electrolytic and tantalum capacitors. It also notes that SMD components require special fixtures.
Operational instructions cover selecting measurement functions, ranges, speed, and input settings, as well as performing sorting and list‑scan modes for capacitor testing. Connection options include GPIB, USB, RS‑232C, and a mechanical‑hand interface for external control. This manual is written in Chinese.
Covers: Front Panel Overview · Rear Panel Overview · Measurement Parameter Selection · Standard Test Fixtures · Operation Procedure · Sorting Mode

Tonghui TH1951 Digital Multimeter Product Leaflet
The TH1951 is a 5‑½‑digit digital multimeter that provides fast, precise voltage, current and resistance measurements. It features a high‑brightness vacuum‑fluorescent display, true‑RMS AC measurement up to 100 kHz, and a range of mathematical functions such as mX+b, %, dB and dBm.
The instrument includes GPIB and RS‑232 communication ports, supports SCPI commands, and can store up to 512 readings plus 10 instrument states for easy recall. It is designed for a wide variety of test scenarios with robust input protection and optional accessories. This manual is written in Chinese.
Covers: Features · Brief Introduction · Technical Parameters · Specifications · Ordering Information

Tonghui TH2839/A Precision LCR Digital Bridge User Manual
The TH2839/A precision LCR digital bridge uses automatic balance bridge technology to provide high accuracy (0.05 % basic accuracy) and fast measurement speeds (as low as 5.6 ms). It supports a wide frequency range of 20 Hz‑10 MHz (TH2839) or 20 Hz‑5 MHz (TH2839A) and can test passive components, semiconductor devices and material samples.
The instrument offers extensive connectivity: standard RS‑232, USB HOST/DEVICE, HANDLER, LAN and optional GPIB and SCANNER ports. It includes a 7‑inch 800×600 TFT LCD, internal storage for 40 preset files (expandable to 500 via USB), and supports SCPI commands compatible with Keysight E4980A/E4980AL and HP4284A. A variety of test fixtures and optional software enhance its versatility for component and material analysis. This manual is written in Chinese.
Covers: Performance Features · Technical Specifications · Interface Options · Scanning Parameters · Display Specifications · Optional Accessories
Latest Tonghui manuals
Tonghui TH9310/20 Series Instrument User Manual
User Manual 65 pages · 1.2 MB · ZHUser manual for the Tonghui TH9310/20 series instrument covering installation, operation, safety, and specifications.
Tonghui TH2830/TH2831/TH2832 LCR Digital Bridge User Guide
User Manual 2 pages · 4 MB · ZHThis guide explains how to operate the Tonghui TH283X series compact LCR digital bridge, covering setup, measurement parameters, and testing procedures.
Tonghui TH1951 Digital Multimeter Product Leaflet
Product Leaflet 2 pages · 506 KB · ZHThe Tonghui TH1951 digital multimeter offers 12 measurement functions, high‑brightness VFD display, 0.01% DC voltage accuracy, and GPIB/RS‑232 interfaces.
Tonghui TH2839/A Precision LCR Digital Bridge User Manual
User Manual 12 pages · 3.9 MB · ZHThe Tonghui TH2839/A is a high‑precision LCR digital bridge with 20 Hz‑10 MHz range, 0.05 % accuracy, multiple interfaces and large storage.
Tonghui TH2810B Series Component Parameter Tester User Manual
User Manual 48 pages · 1.8 MB · ZHThe manual provides operation, specifications, and maintenance instructions for the Tonghui TH2810B component parameter tester.
Tonghui TH2512/TH2512A Low Resistance Tester User Manual
User Manual 19 pages · 403 KB · ZHUser manual for the Tonghui TH2512/TH2512A low‑resistance tester, covering operation, specifications, and remote control features.
Tonghui TH2773A Inductance Meter User Manual
User Manual 14 pages · 348 KB · ZHThe Tonghui TH2773A inductance meter manual provides specifications, operation steps, selection function, maintenance and warranty information.
Tonghui TH2828/TH2828A/TH2828S LCR Digital Bridge & Component Analyzer Manual
User Manual 4 pages · 624 KB · ZHThe Tonghui TH2828 series manual describes the LCR digital bridge and component analyzer features, specifications, and operation instructions.
Tonghui TH2818 Series Automatic Component Analyzer User Manual
User Manual 180 pages · 1.3 MB · ZHThe Tonghui TH2818 Series manual provides installation, operation, menu functions, and system settings for the automatic component analyzer and precision…
Tonghui TH2683 Insulation Resistance Tester Operation Manual
User Manual 24 pages · 766 KB · ZHThe operation manual for Tonghui TH2683 Insulation Resistance Tester, covering features, panel layout, operation steps, calibration and warranty.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in Tonghui manuals
How many test files and steps can be programmed in the instrument?
The instrument can store up to 20 test files, each containing up to 20 test steps.
What safety warning is given for high‑voltage testing?
The instrument can generate up to 5 kV high voltage that may cause injury or death, so all safety precautions must be followed.
Where can I select measurement functions and ranges?
Use the Measurement Control Parameter Selection area to choose test functions, ranges, speed, frequency, level and bias voltage.
From: Tonghui TH2830/TH2831/TH2832 LCR Digital Bridge User Guide
How do I start a list‑scan measurement?
Press the sequence of keys as shown (e.g., two presses, then two presses, then four, then eight, then two) to initiate the list‑scan mode.
From: Tonghui TH2830/TH2831/TH2832 LCR Digital Bridge User Guide
Which communication interfaces does the TH1951 provide?
The multimeter includes GPIB and RS‑232 ports and supports SCPI command programming for computer control.
What is the DC voltage measurement accuracy?
The DC voltage accuracy is 0.01% plus 8 digits of error.
