OneFerm pH Sensors - Traditional
The Hamilton OneFerm is a single use glass sensor for pH measurement. It retains the high accuracy performance of a glass electrode after gamma irradiation and dry storage. It is delivered as an integrated part of a single use container to provide ease of use. The OneFerm pH sensor is only available to integrators such as single use bag, bioreactor, or downstream skid manufacturers.
Other Accessories
Traditional Transmitters
Hamilton Transmitter Series for traditional pH, ORP, conductivity and dissolved oxygen measurements combines ease of use and reliability.
Traditional Sensor Cables
Cables for traditional pH, ORP, and dissolved oxygen sensors offer a variety of connectors and cable lengths to match your application.
Resources
Hamilton's knowledge base provides a range of explanatory articles, frequently asked questions, and document downloads.
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Brochure - Single-Use Sensors
With Hamilton's new breed of sensors specifically designed for single-use applications, you can now expect the same precise and hassle-free measurements in your single-use processes. -
Manual - OneFerm pH Sensors
Manual for OneFerm pH single use sensors describing the most important functions of this sensor. -
Material Specification - O-ring EPDM
Material specification of O-ring EPDM
Featured FAQ
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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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 is A-length and how is it measured?
A-length refers to the insertion depth of the sensor. It's generally measured from the base of the PG13.5 mounting threads but can vary with certain styles of sensors. -
Where can I find documentation and certificates for my sensors?
Paper copies sensor information such as manuals, declarations of quality, and material certificates ship with the product. Hamilton also has several website resources to find related information. Click on the FAQ to learn more.
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Comparing Glass Membrane Versus Optical pH Sensors
In biopharma applications there are two technology options for continuous pH measurement - glass membrane and optical. This article will explore both technologies along with their benefits and limitations. -
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. -
What type of electrical connector does my sensor have?
There are multiple styles of electrical connectors used with sensors. See each style of connector and learn where they are used to decide which one fits your needs.
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