The Maintenance free Polyplast Pro sensor is designed for pH measurement in water applications, especially in low conductvity samples, e.g. wastewater, fish farming, ground water, etc.
The Single Pore liquid junction guarantees best measurement results because of direct contact between the sample and the Polisolve electrolyte - clogging is nearly impossible. the Polyplast Pro sensor comes with a robust plastic shaft and glass bulb protection.
Technical Drawings - Polyplast Pro pH / ORP Sensors
Where can I find documentation and certificates for my sensors?
What is the expected lifetime of my pH sensor?Expected pH sensor lifetime is dependent on the application. Exposure to strong chemicals, elevated temperature, fluctuating pressure, and solid build-up can all impact the sensor life. As the sensor ages, a sluggish response may become more apparent, and will require more frequent calibrations to compensate for this change. The overall health of the Arc pH sensors can be seen using the quality indicator in ArcAir software. Click to learn more about sensor lifespan and expiration in the Knowledgebase article.
What solution should I store my pH or ORP probe in?Hamilton recommends storing pH and ORP probes wet in either Hamilton Storage Solution (Ref 238931) or in 3M KCl solution. Click to see the pH/ ORP Sensor Storage and Regeneration Knowledgebase for more information.
What is A-length and how is it measured?A-length refers to the insertion depth of the sensor. It's generally measured from the base of the PG13.5 mounting threads but can vary with certain styles of sensors.
pH Shelf Life and Expiration
How to Measure Sensor A-lengthSensor A-length determines the insertion depth of the sensor. This article shows how this measurement is made for various styles of sensors.
What type of electrical connector does my sensor have?There are multiple styles of electrical connectors used with sensors. See each style of connector and learn where they are used to decide which one fits your needs.
Powered vs. non-powered cablesSome sensors require standard cables while other sensors require power. Which cable should you use? This quick guide helps better answer these questions.
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