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pH, ORP and EC probes and buffer solutions for industry
Accurate pH, EC and ORP measurement in industrial processes. Read how to measure reproducibly with the right pH probe, EC probe, ORP probe and meters, and with which Meytec buffer solutions you keep your system accurate.
pH, EC and ORP probes and buffer solutions for industry
Discover why correct pH, EC and ORP measurements are crucial for stable industrial processes. Read how to measure accurately with a pH meter, EC meter or measuring system and which Meytec probes and buffer solutions support you best.
In the process industry, pH, EC and ORP are three of the most closely monitored parameters. The pH value affects chemical reactions, corrosion and product quality. The EC value (electrical conductivity) indicates the concentration of dissolved salts and chemicals. The ORP value (oxidation-reduction potential) measures the oxidising or reducing capacity of process liquids. An incorrect measurement leads to product deviations, damage to installations or safety risks.
Why are pH, EC and ORP important in industry?
The pH value indicates how acidic or alkaline a process liquid is, on a scale of 0 to 14. The EC value measures conductivity, expressed in µS/cm or mS/cm. The ORP value is measured in millivolts (mV) and indicates the redox balance. Together they determine the effectiveness of chemical processes, dosing and quality control.
Consequences of an incorrect pH, EC or ORP measurement
- Product deviations: an incorrect pH or EC can affect the specifications of semi-finished or end products.
- Corrosion and damage: deviating values can attack pipes, reactors and other installations.
- Safety risks: in chemical processes, an incorrect ORP value can indicate insufficient disinfection or undesired reactions.
- Inefficient dosing: an incorrect measurement leads to overdosing of chemicals or insufficient treatment.
That is why continuous monitoring and regular measurement of pH, EC and ORP are indispensable in every industrial environment.
How do you measure pH, EC and ORP in industry?
- Portable pH meter and EC meter (handheld): a portable meter is ideal for quick on-site checks, sampling or maintenance. The meter gives a digital value immediately and is easy to calibrate.
- pH, EC and ORP measuring and control system (probes): a fixed system is permanently installed in pipes, tanks or reactors. The pH probe, EC probe and ORP probe measure continuously. More advanced systems can dose automatically or trigger an alarm.
In both systems, the pH probe, EC probe and ORP probe are the sensitive and most critical components. High-quality probes, correctly calibrated and maintained, determine the accuracy and reliability of your measurements.
Meytec pH, EC and ORP probes and meters for industry
Meytec supplies high-quality solutions for both types of measuring system: universally compatible pH probes, EC probes, ORP probes, portable meters and all the calibration and maintenance solutions you need.
Industrial pH probe
Many industrial installations already work with pH meters or inline systems from renowned brands. Meytec offers universal pH probes with a standard BNC connector that fit most equipment. Check that your device has a BNC input. This way you only replace the worn probe and your existing system keeps working optimally. See the pH probe.
Our pH probes are suitable for process water, cooling water, chemical solutions and other industrial liquids.
Industrial EC probe
For EC measurement, Meytec also offers replacement EC probes. Check the connector. This way your EC measuring system stays reliable without you having to buy a completely new sensor. See the probes for pH, ORP and EC.
Industrial ORP probe
For redox control, Meytec supplies gold ORP probes with standard BNC. Our ORP probes are suitable for continuous measurement of oxidation or reduction processes. See the ORP probe.
pH meter and EC meter for industry
In addition to individual probes, Meytec also offers complete portable pH meters and EC meters. These are easy to calibrate and ready for use in process liquids, cooling water or chemical solutions. Ideal for quick checks or sampling. See the pH meter.
pH, EC and ORP buffer solutions
A pH probe, EC probe and ORP probe are precision sensors that must be calibrated regularly. Use only calibration solutions of known values for this. Meytec supplies:
- pH buffer solutions: pH 4, pH 7 and pH 10, available in 20 ml, 60 ml and 250 ml.
- EC calibration solutions: 1413 µS/cm for the low range and 12880 µS/cm for the high range. The manual of your meter decides.
- ORP buffer solutions: usually 475 mV, also available in 250 mV, 468 mV and 650 mV.
Calibrate at least weekly, or more often with intensive use or when deviating values are suspected.
Cleaning pH, EC and ORP probes
In industrial environments, limescale, chemicals, oils or biofilm can build up on the probes. This reduces response and accuracy. Never use aggressive cleaning agents or abrasives, but clean the probes with a special Meytec cleaning solution for probes from Meytec.
For stubborn deposits, a soft brush can be used, but only in combination with the cleaning solution. After cleaning, rinse thoroughly with demineralised water and recalibrate.
Storing pH, EC and ORP probes
You must never store a pH probe or an ORP probe dry. Store them in the protective cap for pH and ORP probe, filled with KCl storage solution 3 mol/l. Meytec supplies this storage solution.
EC probes are usually stored dry. First rinse them with demineralised water to prevent salt deposits. Never store probes in tap water.
With fixed systems that run continuously, it is advisable to place the pH and ORP probe temporarily in storage solution during short maintenance stops.
With good maintenance and the right Meytec solutions, your pH, EC and ORP probes last longer and your measuring system stays reliable.
Replacing pH, EC and ORP probes in industry
pH probe Endress+Hauser
Endress+Hauser pH systems for process and industrial applications. Check the connector. Meytec supplies suitable replacement pH probes for these.
EC probe Endress+Hauser
Endress+Hauser EC systems for process control. Meytec offers suitable EC probes for these.
ORP probe Endress+Hauser
Endress+Hauser ORP systems for redox control. Meytec supplies suitable ORP probes for these.
pH probe Mettler Toledo
Mettler Toledo pH systems for the professional process industry. Check that your device accepts BNC. Meytec supplies suitable replacement pH probes for these.
EC probe Mettler Toledo
Mettler Toledo EC systems for process control. Meytec offers suitable EC probes for these.
ORP probe Mettler Toledo
Mettler Toledo ORP systems for redox control. Meytec supplies suitable ORP probes for these.
pH probe Hamilton
Hamilton pH sensors for process and industrial applications. Check the connector. Meytec supplies suitable pH probes for these.
EC probe Hamilton
Hamilton EC sensors for process control. Meytec offers suitable EC probes for these.
ORP probe Hamilton
Hamilton ORP sensors for redox control. Meytec supplies suitable ORP probes for these.
pH probe Knick
Knick pH systems for industrial process measurement. Check the connector. Meytec supplies suitable pH probes for these.
EC probe Knick
Knick EC systems for process control. Meytec offers suitable EC probes for these.
ORP probe Knick
Knick ORP systems for redox control. Meytec supplies suitable ORP probes for these.
pH probe Yokogawa
Yokogawa pH systems for industrial process analysis. Check the connector. Meytec supplies suitable pH probes for these.
EC probe Yokogawa
Yokogawa EC systems for process control. Meytec offers suitable EC probes for these.
ORP probe Yokogawa
Yokogawa ORP systems for redox control. Meytec supplies suitable ORP probes for these.
Conclusion
Correct pH, EC and ORP measurement is the basis of stable industrial processes. Whether you use a portable meter for quick checks or a fixed measuring system for continuous monitoring, the quality of the probes and their maintenance are decisive. With pH probes, EC probes, ORP probes, meters and buffer solutions from Meytec, you keep your processes accurate and reliable.
Order the probe or meter your industrial installation needs. Any questions? Contact us.
