Overview
Portable Multi-parameter Water Quality Meter LMPWM-A11 is adapted with different modes for measuring quality of water on different parameters such as pH, ORP, conductivity, TDS, salinity. Its memory can store & recalls up to 500 sets of data. Due to its portable design, it is suitable for outdoor measurements i.e. on site water testing, remote area water testing & for research purpose. It is reliable and user friendly.
Specifications :
| pH mode |
| pH measurement range | (-2.000) to 20.000 pH | | pH accuracy | ± 0.002 pH | | pH calibration points | 1 - 5 points | | pH calibration solutions | USA, NIST, DIN or user defined |
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| ORP measurement |
| ORP measurement range | -1999.9 to 1999.9 mV | | ORP accuracy | ±0.2 mV | | ORP calibration points | 1 point | | ORP calibration solutions | mV & relative mV |
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| Ion measurement |
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| Conductivity measurement |
| Conductivity measurement range | 0 - 20.00, 200.0, 2000 µS / cm, 20.00, 200.2 mS / cm | | Conductivity accuracy | ± 0.5 % F.S. | | Conductivity calibration points | 1 - 5 points | | Conductivity calibration solutions | 10 µS / cm, 84 µS / cm, 1413 µS / cm, 12.88mS / cm, 111.8mS / cm | | Temperature coefficient | 0.0 to 10.0 % / °C | | Compensation modes | Linear or pre water | | Cell constant | K = 0.1, 1, 10 or user-defined | | Normalization temperature | 20 °C or 25 °C |
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| TDS measurement |
| TDS range | 0 to 100 ppt. (max. 200 ppt., depending on factor setting) | | TDS accuracy | ± 1 % F.S. | | TDS factor | 0.1 - 1.0 (default 0.5) |
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| Salinity measurement |
| Salinity range | 0 to 100 ppt. (max. 80 ppt.) | | Salinity accuracy | ± 1 % F.S | | Measurement modes | Seawater or practical salinity |
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| Resistivity |
| Resistivity range | 0 to 100 Ω | | Resistivity accuracy | ± 1 % F.S | | Resistivity resolution | 0.01, 0.1, 1 |
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| Dissolved oxygen |
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| Temperature compensation |
0 to 100 °C, 32 to 212 °F, Manual or Automatic |
| Stability conditions |
Low or high |
| Calibration due |
0 to 31 days |
| Memory |
Stores up to 500 data sets |
| Output |
USB communication interface |
| Dimension (L × W × H) |
185 × 88 × 32 mm |
| Weight |
300 g |
| Power supply |
3 × 1.5 V “AA batteries or DC 5 V power adapter |
Features :
- - Common Features
- - Calibration due reminder informs operator to calibrate the meter regularly
- - Stability indicator displays the status of current measurement
- - Auto hold function freezes stable, final readings for better viewing and recording
- - Manual temperature calibration to rectify the deviations in temperature
- - Automatic temperature compensation for accurate measured value over the entire range
- - Selectable temperature units (°C or °F) for different application requirements
- - Expanded memory stores and records up to 500 readings
- - Help message as an operational guide, helps users for quick access to the parameters
- - Reset function automatically resumes all the setting back to factory default options
- - Store data is transferrable into computer via USB communication interface
- - pH mode
- - 1-5 points push button calibration to automatically identify pH buffer
- - Convenient to select pH buffer standard (USA/NIST/DIN) or custom
- - Automatic electrode slope display helps operator whether to replace the sensor
- - ORP mode
- - 1 point offset calibration to adjust the display value to known standard
- - Relative & absolute mV measurements for accurate ORP readings
- - Conductivity / TDS / Salinity / Resistivity Mode
- - 1-5 point for calibration with automatically identification of calibration solutions
- - Can select cell constant (0.1/1/10) and normalization temperature (20°C or 25°C)
- - TDS conversion factor, seawater, practical salinity measurements mode to meet different water quality measurement requirements
- - Linear or pure water compensation improves the measurement accuracy
Applications :
The portable multi-parameter water quality meter is used for quality testing of water on different parameters in research and development labs, water resources and plants in nearby or remote area.
Standard Accessories :
pH, conductivity & dissolved oxygen electrodes
PH and conductivity electrodes
pH and dissolved oxygen electrodes
conductivity and dissolved oxygen electrodes
Optional Features :
Temperature probe
Calibration solutions
Batteries
Carrying case
