Specifications

Improved Stainless Steel pH 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 improve-
ments were needed, such as in the durability of the cable connector, the existing style was
improved by switching to a solid 316L stainless steel shell. This approach 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 sensors.
Special Low-Noise Coaxial Cable
Some suppliers use standard coaxial cables for pH and D.O. sensors, and while functional, they are
not optimal. If such cables are pinched or sharply bent the inner shielding is compromised and the
sensor is subject to interference from electromagnetic noise. Broadley-James has found that the
environments around a fermentation tank or bioreactor are full of such sources, including agitators,
solenoids, electronic valves, and pumps, and use a different style cable instead. These cables have
an extra layer of shielding, lying just below the traditional outer braid. It is composed of an electri-
cally conductive polymer and provides for 100% shielding, even when the cable is tightly bent or
stressed. This cable is custom made for Broadley-James and is standard on all cables, at no extra
charge.
Improved D.O. Sensor Connector
The “D9” connector used on Broadley-James D.O. cables has been used for decades in the industry.
However, while the same connectors are used, other companies construction methods are not
used. Instead, not only are the leads soldered to the internal gold contacts, they are then coated
with epoxy. This seals them in place and acts as a second barrier should any moisture penetrate. The
added step, combined with an improvement in the cable compression fitting, prevents the cable
from pulling loose from the contacts after extensive service. The end result is a longer lasting instal-
lation. The D.O. cable assemblies are made with the same custom fabricated low-noise coaxial cable
that is used for the pH cables.
The Market Leader in pH and D.O. Cable and Connector Design
Broadley-James Corporation does not believe in changing the basic design of connectors 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 equipment as
well as the old. Broadley-James strives to protect investments, and help leverage them into the
future. Improvements are made with the customer process in mind.
New & Improved Cable & Co nnector Designs
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Broadley-James Corporation (U.S. & Canada) Toll-Free: 800-288-2833 E-mail: [e-mail]
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