FermoTrode

The maintenance-free FermoTrode pH sensor is ideal for pharmaceutical and biotech applications requiring reliable pH measurement with a clog-free design, stable performance after sterilisation, and a long sensor lifetime.

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  • Fermotrode pH sensor

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FermoTrode Details

Designed for the demanding pharmaceutical and biotechnology industries, the maintenance-free FermoTrode pH sensor ensures reliable pH measurements. Its clog-free design, achieved through 3 Coatramic diaphragms, an Everef-F reference cartridge, and Skylyte electrolyte, eliminates precipitation. The sensor offers stable performance after steam sterilization and drift-free signals over its long lifetime. 

Common applications Pharma & Biopharma, Bioprocess Downstream, Bioprocess Upstream, Biotechnology

Clog-free design eliminates precipitation for a longer lifetime.

Stable performance after steam sterilization ensures reliable measurements.

Maintenance-free operation reduces downtime and costs.

Clog-Free Design

  • The FermoTrode features a unique combination of three Coatramic diaphragms, an Everef-F reference cartridge, and Skylyte electrolyte. 
  • This innovative design prevents silver precipitation in the electrolyte.  
  • The result is a sensor less prone to clogging, ensuring consistent and reliable pH measurements over a longer lifetime.

Steam Sterilizable

  • The FermoTrode is suitable for steam sterilization processes commonly used in pharmaceutical and biotechnology industries. 
  • This allows for easy integration into sterilization cycles without compromising the sensor's performance or calibration stability.
  • Ensures accurate pH measurements even after repeated sterilisation procedures.

  • Hamilton pH sensors are characterized by their high measuring accuracy and long service life.

    Hamilton pH sensors are characterized by their high measuring accuracy and long service life. This contributes significantly to the control of our processes. They also help us to guarantee the required product quality and to further optimize processes.

    Felix Colin
    Bioprocess Engineer, AB Enzymes GmbH

  • The measurement technology from Hamilton is hard to beat in terms of its measurement accuracy and reliability.

    The measurement technology from Hamilton that is used in our brewery is hard to beat in terms of its measurement accuracy and reliability. The planning security and cost stability with the subscription is very attractive and important to us. Hamilton offers great support and is always open to customer requests.

    Holger Bruckes
    Deputy head of Quality Assurance Mönchengladbach Brewery, Branch of OETTINGER Brewery GmbH

  • I could not be more pleased with my experience with Hamilton!

    My company has been using Hamilton probes for years and have always been happy with their performance! The team is always very helpful in trouble shooting issues and answering any questions that we may have about our probes. Overall, I could not be more pleased with my experience with Hamilton!

    Abigail Mann
    Bioprocessing Fermentation Associate at Heliae Development

FermoTrode Specifications

Print
Wetted Parts GΙass
Ceramic
pH Glass Hamilton Type PHI Glass
Electrical Connector S7
Measuring Range pH 0 to 14
Electrolyte Skylyte
Sensitivity 57 to 59 mV / pH at 25 °C
Zero Point 0 ± 20 mV
pH Glass Resistance Moderate
Membrane Shape Spherical
Diaphragm Coatramic
Number of Diaphragms 3
Reference System Hamilton Everef-F, Silver ion barrier included
Liquid Earth No
Temperature Sensor No
Serial Number Yes
Recommended Storage Hamilton Storage Solution or 3 M KCl
Certificate No
ATEX Approval II 1/2 G Ex ia IIC T4/T5/T6 Ga/Gb; II 1/2 D ia IIIC T x °C Da/Db
IECEx Approval II 1/2 G Ex ia IIC T4/T5/T6 Ga/Gb; II 1/2 D ia IIIC T x °C Da/Db
Diameter 30 mm
Autoclavable No
Steam Sterilizable Yes
CIP No
Operating Temperature Range 0 to 130 °C
Sample min Conductivity 50 µS/cm
Pressure Range bar g 0 to 4 bar
Shaft Diameter Below 12 mm

Compatibility with Hamilton Devices

Explore compatible devices.

FermoTrode Resources

Browse app notes, user guides, specification documents, and more in our Knowledge Center.

Browse app notes, user guides, specification documents, and more in our Knowledge Center.

Browse app notes, user guides, specification documents, and more in our Knowledge Center.

pH Calibration Procedure

Article

The pH Sensor Calibration Procedure

This article provides guidelines for calibrating a pH sensor or an industrial transmitter. The article provides best practices for handling sensors and liquid buffer solutions.

Browse app notes, user guides, specification documents, and more in our Knowledge Center.

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FAQ

What is a refillable sensor and why would I choose it?

Refillable sensors have a port that allows manual replenishment of the reference electrolyte. Processes like pure water leach out out the electrolyte so the Ionotrode is a good choice. Other products like the ChemoTrode allow the for externally pressurized electrolyte so the process liquid cannot easily contaminate the sensor.
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FAQ

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.
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Services
Modular Service Contracts

Hamilton offers modular service contracts tailored to your requirements, featuring a basic module complemented by optional add-ons.

Installation Support

Installation, set-up, and calibration support directly on-site. Our field service team ensures your sensors and cables are installed and functioning correctly.

Qualification IQ/OQ

Support for the qualification of Hamilton equipment including complete documentation. Readying your process for GMP manufacturing activities.

Maintenance and Calibration Services

Preventative maintenance and regular service contracts. Schedule on-site service dates to ensure your sensors are properly maintained and your process is optimized.

On-Site Service Diagnostics

Diagnosing and resolution of process system problems on-site. Finding the root cause and presenting a solution to fit your needs.

On-Site Training

User trainings and on-site trainings for technicians. Tailored training ranging from basic operation to advanced calibration and maintenance.

Backed by world-class service and support.

For over 75 years, the Hamilton name has been recognized globally for its unwavering commitment to quality. That pledge extends to creating long-term customer partnerships. We're proud to offer in-depth training courses, on-site field support, custom product builds, and so much more.

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