Portable Multi-parameter Water Quality Meter LMPWM-A11

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	<table class='table table-striped table-bordered table-responsive'><tr><td><strong>pH measurement range</strong></td><td>(-2.000) to 20.000 pH</td></tr><tr><td><strong>pH accuracy</strong></td><td>± 0.002 pH</td></tr><tr><td><strong>pH calibration points</strong></td><td>1 - 5 points</td></tr><tr><td><strong>pH calibration solutions</strong></td><td>USA, NIST, DIN or user defined</td></tr></table>
ORP measurement	<table class='table table-striped table-bordered table-responsive'><tr><td><strong>ORP measurement range</strong></td><td>-1999.9 to 1999.9 mV</td></tr><tr><td><strong>ORP accuracy</strong></td><td>±0.2 mV</td></tr><tr><td><strong>ORP calibration points</strong></td><td>1 point</td></tr><tr><td><strong>ORP calibration solutions</strong></td><td>mV & relative mV</td></tr></table>
Ion measurement	<table class='table table-striped table-bordered table-responsive'></table>
Conductivity measurement	<table class='table table-striped table-bordered table-responsive'><tr><td><strong>Conductivity measurement range</strong></td><td>0 - 20.00, 200.0, 2000 µS / cm, 20.00, 200.2 mS / cm</td></tr><tr><td><strong>Conductivity accuracy</strong></td><td>± 0.5 % F.S.</td></tr><tr><td><strong>Conductivity calibration points</strong></td><td>1 - 5 points</td></tr><tr><td><strong>Conductivity calibration solutions</strong></td><td>10 µS / cm, 84 µS / cm, 1413 µS / cm, 12.88mS / cm, 111.8mS / cm</td></tr><tr><td><strong>Temperature coefficient</strong></td><td>0.0 to 10.0 % / °C</td></tr><tr><td><strong>Compensation modes</strong></td><td>Linear or pre water</td></tr><tr><td><strong>Cell constant</strong></td><td>K = 0.1, 1, 10 or user-defined</td></tr><tr><td><strong>Normalization temperature</strong></td><td>20 °C or 25 °C</td></tr></table>
TDS measurement	<table class='table table-striped table-bordered table-responsive'><tr><td><strong>TDS range</strong></td><td>0 to 100 ppt. (max. 200 ppt., depending on factor setting)</td></tr><tr><td><strong>TDS accuracy</strong></td><td>± 1 % F.S.</td></tr><tr><td><strong>TDS factor</strong></td><td>0.1 - 1.0 (default 0.5)</td></tr></table>
Salinity measurement	<table class='table table-striped table-bordered table-responsive'><tr><td><strong>Salinity range</strong></td><td>0 to 100 ppt. (max. 80 ppt.)</td></tr><tr><td><strong>Salinity accuracy</strong></td><td>± 1 % F.S</td></tr><tr><td><strong>Measurement modes</strong></td><td>Seawater or practical salinity</td></tr></table>
Resistivity	<table class='table table-striped table-bordered table-responsive'><tr><td><strong>Resistivity range</strong></td><td>0 to 100 Ω</td></tr><tr><td><strong>Resistivity accuracy</strong></td><td>± 1 % F.S</td></tr><tr><td><strong>Resistivity resolution</strong></td><td>0.01, 0.1, 1</td></tr></table>
Dissolved oxygen	<table class='table table-striped table-bordered table-responsive'></table>
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