Portable Multi-parameter Water Quality Meter LMPWM-T2011

Introduction

Portable Multi-parameter Water Quality Meter features multiple measurement modes for comprehensive water quality analysis. It measures pH from -2.000 to 20.000 with ±0.002 accuracy and supports readings from -1999.9 to 1999.9 mV with ±0.2 mV accuracy. Conductivity measurement extends up to 200.2 mS/cm, ensuring precise assessment. The meter includes calibration solutions, temperature units, and an auto-hold function. Ideal for laboratory, industrial, and environmental water quality monitoring.

This water testing equipment is designed to meet the rigorous requirements of modern laboratory operations, ensuring high precision, reliability, and ease of use for various experimental applications.

Applications

Our Portable Multi-parameter Water Quality Meter is ideal for environmental monitoring, water treatment, research labs, wastewater management, aquaculture, hydroponics, and drinking water analysis.

Specifications

pH mode	pH measurement range (-2.000) to 20.000 pH pH accuracy ± 0.002 pH pH calibration points 1 to 5 points pH calibration solutions , , or user defined
measurement	measurement range -1999.9 to 1999.9 mV accuracy ±0.2 mV calibration points 1 point calibration solutions mV & relative mV
Conductivity measurement	Conductivity measurement range 0 to 20.00, 200.0, 2000 µS / cm, 20.00, 200.2 mS / cm Conductivity accuracy ± 0.5 % F.S. Conductivity calibration points 1 to 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
measurement	range 0 to 100 ppt. (max. 200 ppt., depending on factor setting) accuracy ± 1 % F.S. factor 0.1 - 1.0 (default 0.5)
Salinity measurement	Salinity range 0 to 100 ppt. (max. 80 ppt.) Salinity accuracy ± 1 % F.S Measurement modes Seawater or practical salinity
Resistivity	Resistivity range 0 to 100 Ω Resistivity accuracy ± 1 % F.S Resistivity resolution 0.01, 0.1, 1
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	communication interface
Power supply	3 × 1.5 V “AA batteries or DC 5 V power adapter
Dimension (L × W × H)	185 × 88 × 32 mm
Weight	300 g

Features

Calibration due reminder alert

Stability indicator for real-time status

Manual temperature calibration adjustment

Selectable temperature units (°C/°F)

Expanded memory for 500 readings

interface for data transfer

Factory reset to default settings

Multi-mode salinity measurement options

FAQs

1. What are the key factors to consider when selecting this water testing equipment for laboratory use?

When selecting this water testing equipment, key factors include: 1) The instrument's precision and accuracy to meet experimental requirements; 2) Compatibility with the types of samples and applications you will be working with; 3) Ease of use and maintenance requirements; 4) Safety features to protect operators and samples; 5) Calibration and certification requirements; 6) Cost-effectiveness and long-term reliability; 7) Technical support and service availability from the supplier. Evaluating these factors ensures that the instrument meets your laboratory's specific needs.

2. How often should this water testing equipment be calibrated to ensure accurate results?

It is recommended to calibrate this water testing equipment at least once every 6-12 months under normal usage conditions. More frequent calibration (every 3-6 months) may be necessary if: 1) The instrument is used continuously for extended periods; 2) It is exposed to harsh environmental conditions (temperature fluctuations, humidity, dust); 3) It is used for critical applications requiring high precision; 4) The instrument has been moved or subjected to physical shock; 5) Calibration checks indicate significant deviations from standard values. Always follow the manufacturer's calibration guidelines.

3. What are the common maintenance procedures required for this water testing equipment?

Common maintenance procedures include: 1) Regular cleaning of the instrument's exterior and sample contact surfaces to prevent contamination and ensure proper operation; 2) Inspection of moving parts (if applicable) for wear and lubrication as recommended by the manufacturer; 3) Replacement of consumable parts (filters, bulbs, reagents) according to usage guidelines; 4) Verification of performance parameters (temperature, pressure, voltage) regularly; 5) Storage of the instrument in a clean, dry environment when not in use; 6) Keeping a maintenance log to track service activities and identify potential issues early; 7) Following the manufacturer's specific maintenance schedule for optimal performance and longevity.

4. Can this water testing equipment be used with different types of samples, and are there any compatibility considerations?

Yes, this water testing equipment can be used with a variety of sample types, but compatibility considerations are important: 1) Check if the instrument's materials are compatible with the chemical composition of your samples (avoid corrosive or reactive substances that may damage the instrument); 2) Ensure that the sample volume and concentration are within the instrument's recommended range; 3) For biological samples, consider sterility requirements and potential cross-contamination risks; 4) For volatile or hazardous samples, ensure proper ventilation and safety precautions are in place; 5) Consult the manufacturer's documentation for specific sample compatibility guidelines, and perform compatibility tests with new sample types before regular use.

5. What should be done if the water testing equipment malfunctions or produces inconsistent results?

If malfunctions or inconsistent results occur: 1) First, check the instrument's user manual for troubleshooting guidelines specific to the issue; 2) Verify that the instrument is properly calibrated and within its calibration period; 3) Inspect for obvious issues such as loose connections, damaged parts, or incorrect settings; 4) Clean the instrument thoroughly to remove any contamination that may affect results; 5) Repeat the experiment with a known standard sample to determine if the issue is with the instrument or the sample; 6) If the problem persists, discontinue use of the instrument to prevent further damage or inaccurate results; 7) Contact technical support or a qualified service technician for diagnosis and repair, providing details of the issue and any troubleshooting steps already performed.