The Tonghui TH2839/A is a high‑precision LCR digital bridge with 20 Hz‑10 MHz range, 0.05 % accuracy, multiple interfaces and large storage.
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.
| Dimensions | 400 mm × 132 mm × 425 mm |
|---|---|
| Weight | 15 kg |
| Frequency Range | 20 Hz‑10 MHz (TH2839) / 20 Hz‑5 MHz (TH2839A) |
| Basic Accuracy | 0.05 % |
| Signal Source Voltage | Maximum 2 Vrms |
| DC Bias Voltage Range | ±40 V |
| Internal Storage | 40 preset files (expandable to 500 via USB) |
| Standard Interfaces | RS‑232, USB HOST, USB DEVICE, HANDLER, LAN |
The TH2839/A covers 20 Hz to 10 MHz, while the TH2839A version covers 20 Hz to 5 MHz.
The instrument provides a basic accuracy of 0.05 %.
Standard interfaces are RS‑232, USB HOST, USB DEVICE, HANDLER and LAN; GPIB and SCANNER are optional.
The instrument can store 40 preset files internally, expandable to 500 via USB storage.