Polilyte Plus pH-Sensor
Polilyte Plus sensors have a maintenance-free design to withstand demanding industrial applications in chemical, petrochemical, process water, and wastewater treatment applications. Common reference problems such as clogging are eliminated with the two Single Pore junctions. The Polilyte sensors show good measurement accuracy in highly alkaline solutions as well as in samples with low conductivity. Additionally, the Everef-L reference cartridge ensures a long lifetime. A stabilized sensor signal and an extended sensor diagnosis thanks to the integrated Liquid Earth in the VP are further features of the Polilyte Plus.
Polilyte Plus - Traditional
Polilyte Plus - Arc
Polilyte Plus - Memosens
| Polilyte Plus (H glass) | Polilyte Plus (HB glass) | Polilyte Plus (HF glass) | Polilyte Plus (PHI glass) | |
|---|---|---|---|---|
| Parameter | pH | pH | pH | pH |
| Measurement range | 0 - 14 pH | 0 - 14 pH | 0 - 14 pH | 0 - 14 pH |
| Process temperature | 0 - 130 °C (Arc: analog 0 – 110 °C, digital 0 – 140 °C) | 0 - 130 °C (Arc: analog 0 – 110 °C, digital 0 – 140 °C) | 0 - 130 °C (Arc: analog 0 – 110 °C, digital 0 – 140 °C) | 0 - 130 °C (Arc: analog 0 – 110 °C, digital 0 – 140 °C) |
| Pressure range | 0 – 10 bar | 0 – 10 bar | 0 – 16 bar (Consult factory) | 0 – 10 bar |
| Hygienic aspects | Autoclavable, SIP | Autoclavable, CIP, SIP | -- | Autoclavable, CIP, SIP |
| Sensing element | H Glass | HB Glass | HF Glass | PHI Glass |
| Electrolyte | Polisolve Plus | Polisolve Plus | Polisolve Plus | Polisolve Plus |
| Reference system | Everef-L | Everef-L | Everef-L | Everef-L |
| Diaphagm | Single Pore | Single Pore | Single Pore | Single Pore |
| O-ring | FKM | EPDM | FKM | EPDM |
Specific Applications
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App Note - Intelligent Sensor in Pure Water Production
Arc sensors for conductivity, pH and ORP measurement in pure water treatment -
App Note - Arc DO, pH in continuous fermentation
The Technical University of Berlin, Germany, uses Arc sensor technology in their plug flow reactor in which bacteria are cultivated. -
App Note - pH in biocide formulation
Acima, a subsidiary of DowDupont, uses Polilyte plus pH sensor in biocide formulation in their production plant in Buchs, Switzerland. -
App Note - pH in sugar refining
Pfeifer & Langen, a major German sugar manufacturer, uses Polilyte Plus pH sensors to monitor carbonatation in their plant in Jülich, Germany.
Resources
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Brochure - Arc Intelligent Sensors
Arc Intelligent sensors offer a new way to connect to your process control system. -
Brochure - Brewery
Learn about our control and analytical solutions that are essential to the brewing process. -
Manual - Process pH and ORP - Traditional
General Process pH and ORP sensor manual for EasyFerm, Polilyte Plus, ChemoTrode, FermoTrode, IonoTrode, MecoTrode, Polilyte Pro, Polyplast Pro, Liq-Glass, and EasyControl products.
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Traditional vs. Arc vs. Memosens Sensors?
Traditional sensors provide standard mV output and rely on a separate transmitter or controller to amplify the signal and convert to an actual reading. Arc sensors provide a built-in microtransmitter that can output either 4 - 20mA or Modbus RTU digital communication. Finally Memosens sensors offer a digital signal that works with all Memosens transmitters and analyzers currently on the market. -
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.
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pH and ORP Sensor Reference Design
Pre-Pressurized vs. refillable vs. polymer vs. viscous electrolyte? This article discusses basic pH reference design benefits for each product family. -
Sources of pH Measurement Error
pH Sensors are electrochemical devices with limited lifespans. Changing process conditions directly impact each component within the combination electrode thus can be sources of error leading to inaccuracy and eventual death of the sensor. -
Understanding Wetted Materials (Stainless, Plastics, & Elastomers)
Wetted materials such as stainless steel, plastics, and elastomers are often listed by different names and abbreviations in different parts of the world. This quick cross reference guide helps sort out the common names for wetted materials used in Hamilton sensors.
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