Portable Multi-parameter Water Quality Meter LMPWM-A21 Catalog

Portable Multi-parameter Water Quality Meter LMPWM-A21 is adapted with different modes for measuring quality of water on different parameters. This meter can measure pH, ORP, Dissolved Oxygen content from test sample. It can store & recalls up to 500 sets of data. It is reliable and user friendly, suitable for outdoor measurements.

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
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
Dissolved oxygen	DO concentration range: 0.00 to 20.00 mg/L DO accuracy: ± 0.2 mg/L Calibration points: 1 - 2 points Pressure correction: 60.0 to 112.5 kPa, 450 - 850 mmHg Salinity correction: 0 to 50 g/L % Saturation of Oxygen: 0.0 to 200.0 % Accuracy: ± 2.0 %
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
Connector	BNC, 6- pin MINI connector
Display	LCD
Dimension (L × W × H)	170×85×30 mm
Weight	300 g
Power supply	3 × 1.5 V “AA batteries or DC 5 V power adapter

• <b>Common Features</b> 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 recalls 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
• <b>pH mode</b> 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
• <b>ORP mode</b> 1 point offset calibration to adjust the display value to known standard
• Relative & absolute mV measurements for accurate ORP readings
• <b>Dissolved oxygen mode</b> 1-2 points calibration using the air-sealed water & zero oxygen solution
• Manual salinity & barometric pressure compensation for accurate readings

Temperature probe
Dissolved oxygen electrode filling solutions
Dissolved oxygen film cap
Dissolved oxygen electrode

The portable multi-parameter water quality meter is used for quality testing of water, and other solvents on different testing parameters in research and development labs, water resources and plants in nearby or remote area.