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.
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.
Arc Module SU pH
pH Port for OneFerm
Flyer - Single-Use Sensors
Catalog - Process AnalyticsDownload the Process Analytics sensor catalog to learn about the complete offering of Hamilton process sensors and accessories.
Programmers Manual - Arc Single Use pH ModuleAddressed to programmers, this document describes the Arc Module SU pH sensors Modbus RTU Interface.
Manual - Arc Module SU pHOperating Instruction for the Arc Module SU pH, an reuseable electronic for the OneFerm pH sensor.
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.
How to Measure Sensor A-lengthSensor 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 cablesSome sensors require standard cables while other sensors require power. Which cable should you use? This quick guide helps better answer these questions.
Choosing OneFerm Single-Use pH SensorsHamilton offers both traditional and Arc versions of the OneFerm Single-Use pH Sensors. Learn the differences between this products to properly specify them for your application.
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