Benchtop Multi-parameter Water Quality Meter LD-LMPWM-A42 with large backlit LCD (125 × 100 mm) display, measures conductivity; TDS, salinity, resistivity, DO and temperature of the sample. Equipment saves space of the benchtop by combining multiple parameters in one unit. With expanded memory, it stores and recalls up to 500 data sets. Calibration due reminder informs the operator to calibrate the meter regularly. Setup menu allows you to set the number of calibration points, stability criteria, temperature unit, date and time, auto-power off, etc. USB communication interface for data transfer and timed interval readings.
| Memory | Stores up to 500 data sets |
| Output | USB communication interface |
| Weight | 1.5 kg |
| Display | Custom LCD (125 × 100 mm) |
| TDS Mode | |
| Connector | BNC, 3.5 mm jack socket |
| TDS Range | 0 to 10.00, 100.0, 1000 ppm, 10.00, 200.0 ppt |
| TDS Factor | 0.1 to 1.0 (default 0.5) |
| Temperature | |
| Power Supply | 5V DC power adapter |
| TDS Accuracy | ±1% F.S. |
| Cell Constant | K=0.1 / 1 / 10 / Custom |
| Salinity Mode | |
| Reset Function | Yes |
| Salinity Range | 0.00 to 80.00 ppt / 0.00 to 42.00 psu |
| TDS Resolution | 0.01, 0.1, 1, automatic |
| Resistivity Mode | |
| Compensation Mode | Yes |
| Conductivity Mode | |
| Resistivity Range | 0.00 to 20.00 MΩ |
| Salinity Accuracy | ±1% F.S. |
| Conductivity Range | 0 to 20.00, 200.0, 2000 µS/cm, 20.00, 200.0 mS/cm |
| Data Hold Function | Manual / Auto-read measurement endpoint |
| Stability Criteria | Low / High |
| Salinity Resolution | 0.01 |
| Other Specifications | |
| Resistivity Accuracy | ±1% F.S. |
| Calibration Due Alarm | 1 to 31 days or off |
| Conductivity Accuracy | ±0.5% F.S. |
| Dissolved Oxygen Mode | |
| Reference Temperature | 20 / 25 °C |
| Conductivity Solutions | 10 µS / 84 µS / 1413 µS / 12.88 mS / 111.8 mS |
| Dissolved Oxygen Range | 0.00 to 20.00 mg/L / 0.0 to 200.0 % saturation |
| Resistivity Resolution | 0.01 |
| Conductivity Resolution | 0.001, 0.01, 0.1, 1, automatic |
| Dimension (L × W × H) | 210 × 188 × 60 mm |
| Dissolved Oxygen Accuracy | ±0.2 mg/L / ±2.0 % |
| Dissolved Oxygen Resolution | 0.01 / 0.1, selectable |
| Temperature Compensation Mode | manual or automatic |
| Temperature Measurement Range | 0 to 105°C / 32 to 221°F |
| Temperature Compensation Range | 0 to 100°C / 32 to 212°F |
| Conductivity Calibration Points | 1 to 5 points |
| Temperature Measurement Accuracy | ±0.5°C / ±0.9°F |
| Dissolved Oxygen Calibration Point | 1 or 2 points |
| Temperature Measurement Resolution | 0.1°C/°F |
| Conductivity Temperature Coefficient | 0.0 to 10.0% /°C |
| Dissolved Oxygen Pressure Correction | 60.0 to 112.5 kPa / 450 to 850 mmHg, manual |
| Dissolved Oxygen Salinity Correction | 0.0 to 50.0 g/L, manual |
| Temperature Measurement Calibration Points | 1 point |
Multi-parameters are used in research testing, agriculture , quality analysis of water, wastewater treatment, other general liquids across water plants, food and beverages production units, laboratories, and institutes.
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