Labman
Water Quality Multiparameter Meter LMMP32 (pH, Conductivity, DO, Ion)
Water Quality Multiparameter Meter LMMP32 (pH, Conductivity, DO, Ion)
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Water Quality Multiparameter LMMP32 is a high-precision laboratory instrument designed for comprehensive water analysis applications including pH, ORP, ion concentration, dissolved oxygen, conductivity, TDS, salinity, resistivity, and temperature measurement. The system combines multiple analytical functions into a single platform for environmental, pharmaceutical, industrial, research, and water treatment laboratories.
The instrument supports up to 5-point pH calibration with automatic buffer recognition and customizable calibration standards. Automatic electrode diagnostics continuously monitor electrode slope and offset, helping users maintain accurate and reliable measurements throughout operation.
LMMP32 provides advanced conductivity and TDS analysis with selectable compensation modes, cell constants, temperature coefficients, and normalization temperature settings. The instrument also supports dissolved oxygen measurement with pressure correction and selectable calibration modes for highly accurate DO analysis.
The multiparameter system offers ion concentration analysis compatible with ion selective electrodes, making it suitable for specialized laboratory testing applications. Automatic temperature compensation ensures stable and repeatable results across varying sample conditions.
A large backlit LCD interface displays operational prompts and measured parameters clearly for improved usability. The system includes automatic endpoint detection, auto hold functionality, calibration reminders, and memory storage for up to 500 data sets with date and time records to support GLP-compliant workflows.
LMMP32 is suitable for water quality laboratories, environmental monitoring, pharmaceutical analysis, wastewater treatment, aquaculture, food processing, educational institutions, and industrial process applications.
Key Features
pH, ORP, ion, conductivity, TDS, salinity, resistivity, DO, and temperature measurement
Up to 5-point pH calibration with auto buffer recognition
Dissolved oxygen measurement with pressure correction
Ion analysis using ion selective electrodes
Automatic temperature compensation
Automatic endpoint detection and auto hold function
Automatic electrode diagnosis with slope and offset display
Selectable conductivity compensation modes
Salinity measurement in PSU or seawater standards
Large backlit LCD display with operational guidance
Memory storage for up to 500 data sets
Calibration due reminder and stability selection
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, DIN, User Defined |
| ORP Range | 0 to ±1999 mV |
| ORP Resolution | 0.1 / 1 mV |
| ORP Accuracy | ±0.2 mV |
| Ion Range | 0.00 to 19999 |
| Ion Resolution | 0.001, 0.01, 0.1 |
| Ion Accuracy | ±0.5%, ±1% Full Scale |
| Conductivity Range | 0–200 mS/cm |
| Conductivity Resolution | 0.01 / 0.1 / 1 |
| Conductivity Accuracy | ±0.5% Full Scale |
| Cell Constant | 0.1 / 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 Resolution | 0.01 / 0.1 / 1 |
| 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 |
| DO Range | 0.00 to 20.00 mg/L |
| DO Saturation Range | 0.0 to 200.0% |
| DO Resolution | 0.01 / 0.1 |
| DO Accuracy | ±0.2 mg/L |
| DO Calibration | 1 or 2 Points |
| Pressure Correction | 60.0 to 112.5 kPa |
| Temperature Range | 0–100°C |
| Temperature Compensation | Automatic or Manual |
| Temperature Accuracy | ±0.5°C |
| Auto-Off Function | Yes |
| 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 quality and wastewater testing
Environmental monitoring laboratories
Pharmaceutical and chemical analysis
Aquaculture and seawater testing
Industrial process monitoring
Food and beverage quality control
Research and educational laboratories
RO and purified water analysis
