The Top Instrument LDS-1H Computer Quick Moisture Meter User Manual provides setup, measurement, calibration, error correction, and maintenance instructions…
This manual explains how to operate the LDS-1H computer quick moisture meter, a handheld device for determining moisture content in tea leaves and various non‑metallic granular agricultural products such as rice, wheat, corn, soybeans and rapeseed. It covers safety checks, battery installation, and the main functions of the instrument.
The document is organized into sections on pre‑use checks, measurement preparation, moisture measurement steps, error correction, calibration procedures, restoring factory settings, status indicators, technical specifications, and routine maintenance. Each section provides step‑by‑step instructions and notes on interpreting the display. This manual is written in Chinese.
| Measurement objects | Tea and other non‑metallic granular samples such as rice, wheat, corn, soybeans, rapeseed, etc. |
|---|---|
| Measurement range | 3‑35 % |
| Repeat error | ≤ 0.2 % |
| Measurement error | ≤±0.5 % (main moisture range) |
| Measurement time | ≤ 10 s |
| Power source | Four AA (5) batteries |
| Auto shutdown | After >3 min of inactivity |
| Operating temperature | 0‑40 °C |
| Temperature compensation | Automatic |
| Net weight | 800 g |
Press and hold the “确定” key, then press the “▽” key, release both; the display will flash several times indicating that the default factory parameters have been restored.
The red indicator in the upper‑left corner signals low battery voltage; replace the batteries promptly.