Conductivity Meters

Conductivity Meters for Measuring the Conductivity of Electrolyte Solutions

Conductometry allows you to determine the ability of solutions to conduct electricity. Using specialized electrodes, we measure the resistance of the liquid, and the result obtained is expressed in siemens per centimeter. It is worth remembering that this parameter is the direct inverse of resistivity.

The choice of the right device depends on the working conditions. Pocket meters are a budget and handy solution, while advanced laboratory systems can cost several thousand zlotys. Among the professional solutions, the CC-411 model from Elmetro n stands out, which - thanks to its IP-66 class housing - guarantees high precision of measurement in a demanding environment.

A key factor affecting the measurement is the number of ions in the water – the more of them, the less resistance the liquid offers. A modern conductivity meter is indispensable in industry and laboratories, enabling you to:

• water quality monitoring,
• control of electrolyte purity,
• stabilization of technological processes,
• quick assessment of mineralization,
• precise salinity analysis.

Portable, pocket and stationary conductivity meters

The choice of the right measuring device depends on the specifics of the task, and the market offers solutions tailored to all operating conditions. Off-road models such as the WTW Cond 315i are designed for demanding challenges outside the lab. Thanks to the sealed IP 67 housing, this equipment works without failure in places without access to the mains. For those looking for maximum mobility, the Milwaukee PRO series is dedicated, combining compact size with high performance.

In professional laboratories, stationary conductivity meters work best, which serve as multifunctional testing stations. Modern measurement systems offer benefits such as:

• IP 67 resistance to external conditions,
• long battery life - up to 350 hours,
• intuitive operation via touch screens,
• simultaneous measurement of pH and water conductivity,
• data archiving of up to 800 records,
• full compliance with stringent GLP standards.

The use of such advanced technologies not only facilitates documentation management, but above all guarantees the highest precision and full repeatability of measurement results.

Waterproof conductivity meters CC-411 and CC-105 in IP-66 housing

Polish Elmetron measuring instruments are perfect for difficult environments. The pocket-sized CC-105 proves that a compact design goes hand in hand with precision, offering conductivity and salinity measurements at temperatures ranging from -20 to 70°C.

For users who need comprehensive solutions, the CC-411 model has been prepared. Thanks to AutoRead technology and a stability indicator, this multifunctional tool guarantees measurement confidence. These devices allow you to:

• precise pH measurement,
• determination of dissolved oxygen,
• analysis of the redox potential up to 199°C,
• determination of specific conductivity,
• control of the degree of salinity of the liquid,
• data transfer via RS-232 connector.

The robust IP-66 housing effectively protects the electronics from dust and strong water jets. This design means that Elmetron's professional equipment will not disappoint either in industrial halls or during demanding field work.

EC/TDS meters and solometers for salinity measurement

Precise determination of the amount of dissolved substances in water becomes much easier with professional EC/TDS meters and solometers. Devices such as the Lovibond SensoDirect Salt 110 significantly improve this process by automatically converting conductivity into NaCl concentration. Milwaukee's PRO Series testers, on the other hand, offer exceptional accuracy, allowing for lightning-fast EC measurements of up to 20 mS/cm with minimal margin of error, making it easy to quickly verify chloride levels.

In modern agriculture, and especially in hydroponics, constant monitoring of liquid parameters is crucial for optimal dosage of nutrients. The advanced SD 325 Con can handle even demanding tasks, analysing TDS up to 5000 mg/l and salinity up to 70 g/kg.

Regular use of these tools really stimulates plant growth and ensures:

• precise measurement of electrical conductivity,
• automatic conversion of salt concentration,
• accurate analysis of water mineralization,
• determination of conductivity ash,
• full control over the dosage of media,
• guarantee of repeatability of test results.

Automatic temperature compensation and sub-range switching

The precision of the measurements is strictly dependent on the temperature, because even a one-stage fluctuation can change the result by two percent. To prevent this, modern meters are equipped with an automatic compensation (ATC) function. Based on precise Pt1000 sensors and alpha coefficient, this system automatically converts values to a reference point, effectively eliminating the risk of errors.

Modern measurement systems also offer other advanced functionalities that raise the standard of testing, such as:

• intelligent switching of operating ranges,
• automatic adjustment of resolution to ion concentration,
• full reproducibility of results under variable conditions.

Intelligent parameter control almost completely eliminates human errors, as the automatic machine selects the optimal settings in no time. Thanks to advanced sensors, each test becomes fully reliable, which guarantees data consistency and the highest quality of laboratory analyses regardless of external factors.

Use in water quality monitoring and industry

Precise conductivity measurements are the foundation for efficient production, especially in the demanding chemical and food industries. Modern conductivity meters not only rigorously control process parameters, but also open the way to full automation. Continuous water monitoring has a key ecological function, supporting safety and efficiency by:

• Instant detection of chemical leaks
• effective monitoring of emerging deposits,
• guarantee of drinking water safety,
• constant supervision over the proper condition of wastewater,
• optimization of operating profits,
• Efficient detection of foreign substances.

In the pharmaceutical sector, measurement systems must meet the strict USP 26 standards and support IQ/OQ/PQ validation procedures. Advanced ISM technology provides an additional protective barrier for the production line. The use of flow-through solutions enables continuous control without unnecessary downtime, effectively protecting machines from failures and ensuring pristine cleanliness of the end products.

Calibration of conductivity meters using conductivity standards

Systematic calibration is the foundation on which precise measurements in modern industry are based. The use of certified tools allows for the accurate determination of the fixed cell (K), which determines the correct operation of the sensors. To ensure the highest reliability of the results and full efficiency of the signal path, it is necessary to take care of:

• NIST Certified Standards of Conductivity,
• proper selection of platinum, graphite or inductive sensors,
• ongoing maintenance, preventing the phenomenon of polarization,
• use of a magnetic stirrer to obtain a homogeneous sample,
• control of the converter and preamplifier by specialized simulators,
• regular periodic calibration of the probe necessary for a reliable test of water purity.

In DANLAB's offer you will find high-quality conductivity meters. We invite you to order your chosen one today!