FermProbe® pH Electrodes
Autoclavable and Sterilizable

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The Market Leader in pH Electrode Design
Unlike other manufacturers, Broadley-James does not believe in changing the basic design every few years forcing customers into buying new equipment to keep current. Instead, Broadley-James strives to make improvements “backwards compatible” so they can be used with new electronics as well as the old. No changing of connectors which would require new cabling to be run throughout the suite, no unnecessary internal RTD’s that would require new SOP’s and increase risk of failure. Instead, Broadley-James strives to protect investments, and help leverage them into the future. Improvements are made with your process in mind.


FEATURES AND BENEFITS

Suitable for Hygienic Applications.
The FermProbe withstands Steam in Place (SIP) and caustic Clean in Place (CIP) applications. FDA compliant o-rings are used throughout.

Extra Rugged Design
The Broadley-James traditional 25 mm housing body provides a physically robust electrode-housing combination for harsh industrial production environments.

New and Improved pH Glass Bulb
The Broadley-James cobalt blue pH bulb offers the optimum blend of fast response and physical durability. Other manufacturers may have a very thick glass membrane, allowing for better survival of “accidents”. However, these thick bulbs slow response and lead to noisy fluctuating readings. The current formula is the result of thousands of tests, subjecting the pH electrodes to 130°C steam for an hour, then quenching in cool water. Every FermProbe shipped is required to pass this test, and can be trusted to work out of the box, and keep on working while retaining its fast response.

USP Pharmaceutical Grade Electrolyte Thickener
To achieve longer life, the electrolyte inside a pH electrode is thickened with an additive. Broadley-James understands that anything that comes into contact with a product should be as safe as possible. For that reason Broadley-James does NOT use polyacrylamide gel like most other manufacturers. The residual acrylamide, which is always present, poses an unacceptable risk of contamination. Broadley-James uses only the purest form of CMC, the same material used in the coating and binding of pharmaceutical tablets.

Improved Connectors
Broadley-James offers both types of industry standard connectors, the “S8” and the “K9”, which have been used for decades with proven performance in fermentation applications. Where improvements were needed, such as in the durability of the cable connector, we improved the existing style by switching to a solid stainless steel shell. This solution solved the problem while preserving the function of the installed base of equipment. These industry standard connectors are the first, and still the best, choice for pH electrodes.

Original T-Pull® Cap
A concept pioneered by Broadley-James, this unique approach greatly improves the serviceability of pH electrodes. The rugged cap facilitates removal from the vessel, prevents cable damage, and allows for optimum routing of cable to the instrument. A time-proven approach with over a decade of success under the harshest environmental conditions, the T-Pull cap is the strongest, most robust design in the industry.

Universally Compatible
All Broadley-James pH electrodes work with existing biotech equipment, no proprietary electronics or cables are required. Broadley-James designs are intended to fit both existing and future requirements, without introducing any unnecessary changes in hardware or cabling. Reduces inventory and confusion, increases flexibility and cost savings.


PERFORMANCE SPECIFICATIONS

Measurement range: 0–14 pH

Reference System: Double junction, Ag-AgCl

Temperature range: Operation: -5 to 100°C Sterilization: Max. 135°C

Drift: 0.002 pH/24 hours at constant pressure and temp. (30°C)

Maximum Pressure: 10 bar (atm.), 150 psig



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