Viscous Liquid-Filled pH and ORP Probes
Viscous liquid gel-filled sensors provide a suitable upgrade for the entry level pH electrodes used in many industries. The added viscosity of the electrolyte helps slow the ingress of process contaminants from poisoning the reference element.
MecoTrode
Liq-Glass
EasyControl
OxyTrode
EasyControl ORP
WHAT MAKES VISCOUS LIQUID-FILLED SENSORS DIFFERENT?
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Proven Technology
Hamilton has been working with this viscous liquid-filled electrolyte technology for over 20 years.
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Approvals
Most Hamilton viscous liquid filled sensors have additional agency approvals and certifications for appropriate usage in a wide variety of industries.
Download our pH Measurement Guide
Get a better understanding of pH measurement in Hamilton’s comprehensive pH Measurement Guide. This 68-page booklet is intended for anyone with an interest in pH sensor technology or anyone who needs to implement pH sensors in controlled environments such as laboratories and industrial plants. The guide covers the following essential topics:
- Definition of pH scale
- The NERNST equation
- The pH measurement system and measurement chain characteristics
- Applications, calibration, and maintenance of Hamilton's pH sensors
Resources
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Brochure - BioPharma
Innovative solutions for process analytics in biotechnological and pharmaceutical industries. -
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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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. -
How do I clean an ORP sensor?
The platinum band around the tip of the ORP sensor can oxidize over time. Light scrubbing with a mild abrasive such as toothpaste will remove the oxidization. Rinse with potable water and store in storage solution prior to usage
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pH and ORP Sensor Installation Tips
This brief article describes some common considerations with sensor installation and removal, as well as best practices for mounting. -
pH and ORP Sensor Cleaning
Answers to common questions on how to clean off build-up and coating on pH sensors and ORP sensors. -
pH Glass Membrane Types
Hamilton offers several different options for pH membrane glass. This article describes the purpose of each glass type.
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