EasyFerm Plus ORP sensors have the all the advantages of our pre-pressurized reference design combined with a large platinum electrode surface for easy cleaning in sanitary applications.
Arc technology with a variety of sensor length options make this versatile sensor ideal for process control and monitoring in bioprocesses.
Phermlyte electrolyte paired with the pre-pressurized reference and HP Coatramic diaphragm delivers constant electrolyte flow resulting in drift free measurement over the life of the sensor.
Large Platinum Electrode
Easy to clean with lots of surface area works well in applications where coating and build-up on the sensor is a concern.
Traditional ORP sensors offer a standard mV signal that works with existing bioreactors and transmitters. Arc sensors can be connected directly to the control system through 4-20mA or digital signals.
Catalog - Process Analytics
Download the Process Analytics sensor catalog to learn about the complete offering of Hamilton process sensors and accessories.
Brochure - BioPharmaInnovative solutions for process analytics in biotechnological and pharmaceutical industries.
Brochure - Arc Intelligent SensorsArc Intelligent sensors offer a new way to connect to your process control system.
Manual - Process pH and ORP - TraditionalGeneral Process pH and ORP sensor manual for EasyFerm, Polilyte Plus, ChemoTrode, FermoTrode, IonoTrode, MecoTrode, Polilyte Pro, Polyplast Pro, Liq-Glass, and EasyControl products.
What is ORP and why would I want to use it?
ORP is a measurement of the overall level of oxidizing or reducing substances present in the liquid. ORP is expresses as a millivolt (mV) signal. Positive voltage indicates an excess of oxidizing agents in the liquid. Conversely, negative voltage indicates an excess of reducing agents in the liquid. ORP is not specific to a single ion within the liquid but is often used to measure the status of a chemical reaction.
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 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
ORP Calibration Basics
This article discusses the basic design of ORP sensors and the need for proper calibration procedures.
pH and ORP Sensor Reference DesignPre-Pressurized vs. refillable vs. polymer vs. viscous electrolyte? This article discusses basic pH reference design benefits for each product family.
Common ORP ApplicationsORP (redox) is often mentioned frequently alongside pH measurement. This paper looks as some of the more diverse applications for ORP including wine-making, mining, and water treatment.
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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