Labman
Water Quality Multiparameter Meter LMMP30 (pH, ORP, Conductivity, TDS)
Water Quality Multiparameter Meter LMMP30 (pH, ORP, Conductivity, TDS)
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Water Quality Multiparameter LMMP30 is a high-performance laboratory instrument designed for comprehensive water analysis applications including pH, ORP, conductivity, TDS, salinity, resistivity, and temperature measurement. The system combines multiple analytical functions into a single platform for accurate and efficient testing in research, environmental, pharmaceutical, industrial, and water treatment laboratories.
The instrument supports up to 5-point push-button calibration with automatic buffer recognition for pH measurement and customizable calibration solutions for conductivity analysis. Automatic electrode diagnostics continuously monitor electrode slope and offset, helping users maintain reliable measurement accuracy.
LMMP30 features automatic temperature compensation for highly stable and repeatable readings across different sample conditions. Users can select temperature units, compensation modes, normalization temperature, and salinity standards according to application requirements.
The system supports absolute and relative mV measurement for ORP analysis, along with conductivity, TDS, salinity, and resistivity testing using selectable cell constants and compensation settings. Auto endpoint detection freezes stable measured values for easier reading and recording.
A large backlit LCD interface provides clear visualization of all parameters and operational prompts. Built-in memory stores up to 500 data sets with date and time records to support GLP-compliant laboratory workflows.
The LMMP30 is suitable for water treatment facilities, environmental monitoring laboratories, pharmaceutical quality control, food and beverage analysis, chemical processing, aquaculture, and academic research applications.
Key Features
pH, ORP, conductivity, TDS, salinity, resistivity, and temperature measurement
Up to 5-point calibration with auto buffer recognition
Automatic temperature compensation
Automatic endpoint detection for stable readings
Absolute and relative mV ORP measurement
Selectable conductivity compensation modes
Salinity measurement in PSU or seawater standards
Automatic electrode diagnosis with slope and offset display
Large LCD display with operational guidance
Memory storage for up to 500 data sets
Built-in real-time clock with date and time stamping
Selectable temperature units in °C and °F
Suitable for laboratory and industrial water analysis
Technical Specifications
| Parameter | Specification |
|---|---|
| pH Range | -2.000 to 20.000 pH |
| pH Resolution | 0.001, 0.01, 0.1 pH |
| pH Accuracy | ±0.002 pH |
| pH Calibration Points | Up to 5 Points |
| pH Buffer Options | USA, NIST, User Defined |
| ORP Range | 0 to ±1999 mV |
| ORP Resolution | 0.1 / 1 mV |
| ORP Accuracy | ±0.2 mV |
| ORP Measurement Mode | Absolute mV or Relative mV |
| Conductivity Range | 0–200 mS/cm |
| Conductivity Resolution | 0.01 / 0.1 / 1 |
| Conductivity Accuracy | ±0.5% Full Scale |
| Cell Constant | 0.01 / 1 / 10 User Defined |
| Temperature Coefficient | 0.0–10.0% per °C |
| Conductivity Calibration Points | Up to 5 Points |
| Calibration Solutions | 10 µS/cm, 84 µS/cm, 1413 µS/cm, 12.88 mS/cm, 111.8 µS/cm |
| Compensation Modes | Linear or Pure Water |
| TDS Range | 0–10 ppt |
| TDS Accuracy | ±1% Full Scale |
| TDS Factor | 0.0–1.0 |
| Salinity Range | 0–80 ppt |
| Salinity Accuracy | ±1% Full Scale |
| Salinity Mode | Practical Salinity (PSU) or Seawater Standard |
| Resistivity Range | 0–100 MΩ |
| Resistivity Resolution | 1 / 0.1 / 0.01 |
| Resistivity Accuracy | ±1% Full Scale |
| Temperature Range | 0–100°C |
| Temperature Compensation | Automatic or Manual |
| Temperature Accuracy | ±0.5°C |
| Auto-Off Function | 10 / 20 / 30 Minutes |
| Reset & Auto Hold Function | Yes |
| Electrode Diagnosis | Slope, Offset |
| Stability Conditions | High or Low, Selectable |
| Calibration Due Reminder | 1 to 30 Days |
| Memory | 500 Data Sets with Date & Time |
| Connector | BNC 6-Pin Connector |
| Dimensions (L×W×H) | 310 × 250 × 190 mm |
| Weight | 2 kg |
Applications
Water and wastewater analysis
Environmental monitoring laboratories
Pharmaceutical and chemical testing
RO and purified water systems
Food and beverage quality control
Aquaculture and seawater testing
Industrial process monitoring
Educational and research laboratories
