The Tonghui TH2773A inductance meter manual provides specifications, operation steps, selection function, maintenance and warranty information.
The TH2773A inductance meter is a compact, easy‑to‑use instrument for measuring inductance (L) and quality factor (Q). It offers dual‑display readout, selectable measurement frequencies, short‑circuit zeroing and a fast testing speed of about eight measurements per second.
The manual covers technical specifications, panel descriptions, step‑by‑step operating procedures, selection and sorting functions, maintenance guidelines, and warranty details for users and service technicians. This manual is written in Chinese.
| Measured parameters | Inductance (L) and quality factor (Q) |
|---|---|
| Measurement frequencies | 1 kHz ± 0.02 % and 100 Hz ± 0.02 % |
| Basic measurement accuracy | L: ±[1 µH+0.3 %…] (1+1/Q), Q: ±0.2 % |
| Measurement range | L: 0.1 µH ~ 100 H, Q: 0.1 ~ 999.9 |
| Test level (no‑load) | 0.3 V rms |
| Test speed | ≈ 8 measurements per second |
| Preset range (dial switch) | 0.01 µH ~ 990 H |
| Operating temperature | 0 °C ~ 40 °C |
| Operating humidity | ≤ 80 % RH |
| Power supply | 220 V ± 10 % 50 Hz ± 5 % |
| Dimensions | 270 × 130 × 300 mm |
| Weight | ≈ 5 kg |
It can measure at 1 kHz ± 0.02 % and 100 Hz ± 0.02 %.