Single Use pH Probes - OneFerm
Still using reusable pH sensors in single-use applications?
Hamilton OneFerm sensors are the next step in the evolution of single-use measurement. Their design solves some of the issues that commonly occur with reusable pH sensors that are inserted into the bag.
Specifically, Hamilton's single-use sensors combine the reliability and measurement stability of our long-term proven conventional sensors with the ease of use as an integral part of the bioreactor. The sensors retain the high accuracy performance even after gamma irradiation and a sufficient shelf life making it the ideal single-use solution.
OneFerm - Traditional
OneFerm - Arc
Optical vs. Glass: Which is the best technology for single-use pH
The glass pH electrode is widely considered the most robust and reliable device available for pH measurement. Yet, traditional glass sensors are not designed for a single-use environment because they require laborious handling and increased risk of contamination.
While optical technology exists for single-use pH measurement, that technology has not delivered the reliable accuracy that bio-process engineers depend on.
By contrast, Hamilton's single-use OneFerm pH sensors feature the high-accuracy and performance of a traditional glass pH electrode, even after gamma irradiation and dry storage.
Single Use pH Accessories
In addition to sensors, Hamilton offers several single use accessories to simplify installation.
Arc Module SU pH
pH Port for OneFerm
Hamilton single-use sensors are currently only available to integrators such as bag, bioreactor, and downstream skid manufacturers
Bioreactor, bag, and downstream skid manufacturers are encouraged to contact Hamilton to discuss integration opportunities.
End-users at biopharmaceutical companies are encouraged to ask their single-use solution provider if Hamilton sensors are available for their installation.
Resources
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Catalog - Process Analytics
Download the Process Analytics sensor catalog to learn about the complete offering of Hamilton process sensors and accessories. -
Programmers Manual - Arc Single Use pH Module
Addressed to programmers, this document describes the Arc Module SU pH sensors Modbus RTU Interface. -
Manual - Arc Module SU pH
Operating Instruction for the Arc Module SU pH, an reuseable electronic for the OneFerm pH sensor.
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How much torque is needed to install a sensor with PG13.5 threads?
Sensors with PG13.5 threads rely on the o-ring to seal against process pressure. Finger-tight (approximately 2 Newton Meter or 18 inch-lb) should be sufficient to install the sensor without leakage. Additional tightening beyond this can deform the o-ring or strip the threads.
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How to Measure Sensor A-length
Sensor A-length determines the insertion depth of the sensor. This article shows how this measurement is made for various styles of sensors. -
Powered vs. non-powered cables
Some 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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