Benchtop Multi-parameter Water Quality Meter LMPWM-T2041

Introduction

Benchtop Multi-parameter Water Quality Meter measures pH from -2.00 to 20.00, ensuring precise analysis. This meter offers a conductivity range of 0.000 to 1000 mS/cm for various testing needs. Our unit offers up to 5-point calibration for flexible measurement. It provides RS232 and connectivity with compliance for secure data management. It has a clear backlit display to deliver dependable operation under various conditions.

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 Benchtop Multi-Parameter Water Quality Meter is applicable in research testing, and quality analysis of water, and other general liquids across water plants, food and beverages production units, laboratories, and institutes.

Specifications

pH Range	-2.00 to 20.00 pH
pH Resolution	0.1, 0.01 pH
pH Accuracy	± 0.01 pH
pH Calibration Points	Up to 5
pH Standard Customization	Yes
pH Buffer Solutions	, GB, , buffers
pH Slope Limit	Yes
Ion Measurement Unit	μg/L, mg/L, g/L, mmol/L, and PX
Ion Measurement Methods	Fˉ, Clˉ, Brˉ, Iˉ, NO³ˉ, BF⁴ˉ, NH⁴⁺, K⁺, Na⁺, Ca²⁺, Cu²⁺, Pb²⁺, Ag⁺
mV Range	-2000.0 to 2000.0 mV
mV Resolution	0.1 mV
mV Accuracy	± 0.3 mV or ± 0.1%
pX Range	-2.00 to 20.00 pX
pX Resolution	0,1, 0.01 pX
pX Accuracy	± 0.01 pX
pX Calibration Points	Up to 5
Range	mol/L, mmol/L, g/L, mg/L, μg/L, ppm, ppb
Unit	1.000e-9 to 9.999e+9
Resolution	Up to 4 significant digits
Accuracy	± 0.5%
Calibration Points	Up to 5
Conductivity Range	0.000 μS/cm to 1000 mS/cm
Conductivity Resolution	0.001 μS/cm minimum
Conductivity Accuracy	± 1.0% F S
Conductivity Reference Temperature	20, 25 ºC
Conductivity Calibration Points	Up to 3
Conductivity Standard Recognition	84μS/cm, 1413μS/cm, 12.88mS/cm
Resistivity Range	5.00 Ω·cm to 20.00 MΩ·cm
Resistivity Resolution	0.01 Ω·cm
Resistivity Accuracy	± 1.0% F S
Range	0.00 ppm to 300 ppt
Resolution	0.01mg/L minimum
Accuracy	± 1.0% F S
Salinity Range	0.0 to 80.0 ppt
Salinity Resolution	0.1 ppt
Salinity Accuracy	± 2 ppt
Dissolved Oxygen Concentration Range	0.00 to 20.00 ppm
Dissolved Oxygen Concentration Resolution	0.01 ppm
Dissolved Oxygen Concentration Accuracy	± 0.10 ppm
Dissolved Oxygen Concentration Calibration Points	Air-saturated water or zero point
Saturation Range	(0.0 to 200.0) %
Saturation Resolution	0.10%
Saturation Accuracy	± 2.0%
Temperature Range	-5 to 110 ºC, (23 to 230 ºF)
Temperature Unit	ºC, ºF
Temperature Resolution	0.1ºC
Temperature Accuracy	± 0.2ºC
Display Reading Mode	Auto Read (Fast, Medium, Slow), Timed, Continuous
Reading Prompts	Reading, Stable, Locked
Date And Time	Yes
Temperature Compensation Mode	,
Data Storage	500 Results each
Features	Yes
pH Electrode	(Q9)
DO with Temp. Probe	4-pin aviation connector
Conductivity with Temp. Probe	5-pin aviation connector
Output	RS232 port, PC, printer
Backlight	Yes
Auto Shutdown	1 to 60 min, off
IP Rating	IP54
Power	AC Adapter, 100-240 V AC input, DC 9V output
Dimensions	242 × 195 × 68 mm
Packaging Dimension	370 × 305 × 330 mm
Net Weight	900 g (1.98 lb)
Gross Weight	3.5 Kg

Features

Supports and communication interfaces

Includes a reset feature to restore factory default settings

Boasts an IP54 waterproof rating

Automatic electrode diagnosis with pH slope

Supports 1–5 point calibration for ion and pH

Provides automatic barometric pressure compensation

Barometric Compensation and Manual Salinity Factor Correction

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.