Labman
Conductivity / TDS Meter LMCM20H (Auto Ranging, USB Interface)
Conductivity / TDS Meter LMCM20H (Auto Ranging, USB Interface)
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Conductivity / TDS Meter LMCM20H is a microprocessor-based laboratory instrument designed for accurate measurement of conductivity, total dissolved solids (TDS), and temperature in water, chemical, environmental, and industrial testing applications. The system features automatic ranging capability and intelligent calibration functions for stable and reliable analytical performance.
The instrument supports conductivity, TDS, and temperature measurement modes with automatic temperature compensation to ensure accurate readings across varying sample conditions. A large LCD display with white backlight provides clear visualization of measurement data and operational parameters.
LMCM20H supports 1 to 3 point calibration with automatic recognition of conductivity standards, enabling fast and simplified calibration procedures. Users can select cell constants and reference temperatures according to specific laboratory applications and measurement requirements.
The auto-read endpoint function automatically detects stable values and locks the measurement for improved repeatability and consistency. Internal memory allows storage and recall of up to 100 readings, while USB connectivity enables convenient data transfer and external interfacing.
The instrument is suitable for laboratory water analysis, pharmaceutical testing, chemical processing, environmental monitoring, food industry applications, and industrial quality control requiring accurate conductivity and TDS measurement.
Key Features
Conductivity, TDS, and temperature measurement modes
Automatic conductivity and TDS ranging
Automatic temperature compensation
1 to 3 point calibration with auto standard recognition
Selectable cell constant and reference temperature
Auto-read endpoint sensing function
Large LCD display with white backlight
USB interface for data transfer
Memory storage for up to 100 readings
Manual and automatic temperature compensation modes
Suitable for laboratory and industrial water analysis
User-friendly setup and calibration menu
Technical Specifications
| Parameter | Specification |
|---|---|
| Modes | Conductivity, TDS, Temperature |
| Conductivity Range | 0–20.0, 200.0, 2000 µS/cm, 20.00, 200.0 mS/cm |
| Conductivity Resolution | 0.01, 0.1, 1 |
| Conductivity Accuracy | ±0.5% F.S. |
| Calibration Points | Up to 3 Points |
| Calibration Solutions | 10 µS/cm, 84 µS/cm, 1413 µS/cm, 12.88 mS/cm, 111.8 mS/cm |
| TDS Range | 0–10 ppt |
| TDS Accuracy | ±1% F.S. |
| TDS Factor | 0.1 to 1.0 (Default 0.5) |
| Temperature Range | 0 to 105°C |
| Temperature Resolution | 0.1°C |
| Temperature Accuracy | ±0.5°C |
| Temperature Compensation | Manual or Automatic |
| Cell Constant Option | K = 0.1, 1, 10 |
| Normalization Temperature | 25°C |
| Memory | Up to 100 Readings |
| Reset Function | Yes |
| Interface | USB |
| Connector | 6 Pin Mini Plug |
| Operating Temperature | 10 to 40°C |
| Relative Humidity | <80% |
| Display | LCD with White Backlight |
| Display Size | 25 × 100 mm |
| Power Supply | DC Adaptor, AC 220V / 50–60Hz |
| Dimensions (L×W×H) | 310 × 255 × 200 mm |
| Weight | 2 kg |
Applications
Water and wastewater testing
RO and purified water analysis
Environmental monitoring laboratories
Chemical and pharmaceutical testing
Food and beverage quality control
Industrial process water analysis
Educational and research laboratories
