The Tonghui TH2821B handheld LCR meter manual provides overview, specifications, operation steps, safety notes, and warranty information.
The TH2821B is a portable, micro‑processor‑controlled LCR meter that measures inductance (L), capacitance (C), resistance (R), impedance (Z), loss factor (D) and quality factor (Q). It is intended for component manufacturers and service technicians.
The manual includes sections on unboxing, safety precautions, panel description, operation procedures, technical specifications, environmental requirements, warranty details, and an appendix with command strings. It also explains calibration (open/short) and battery replacement. This manual is written in Chinese.
| Test frequency | 100 Hz, 120 Hz, 1 kHz |
|---|---|
| Display digits | 5 |
| Inductance range | 0.1 µH – 9999 µH |
| Capacitance range | 0.1 pF – 9999 µF |
| Resistance / Impedance range | 0.0001 Ω – 9.999 MΩ |
| Loss factor / Q range | 0.0001 – 9999 |
| Power supply | 9 V battery or DC 12 V 100 mA adapter |
| Weight | ≈ 400 g (incl. battery) |
| Dimensions | 40 mm × 95 mm × 200 mm (H × W × L) |
The instrument is covered by a two‑year warranty from the date of shipment.