Specifications

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tenance Maintenance Maintenance Maintenance Maintenance M
Broadley-James
®
Maintenance Supplies,
Designed to make your job easier.
The primary components of a Dissolved Oxygen or pH measurement loop are the sensors and the
transmitters. The sensors are designed to be as robust as possible, but still require regular inspec-
tion and maintenance. Some items,such as membrane cartridges, are consumables and need to be
replaced on a frequent basis. Others, such as 4-pin connec tors, provide a safe and repeatable
method of restoring a damaged sensor back to “as new” condition. Still others, such as o-rings and
gaskets, ensure that the effects of normal wear and tear are eliminated and optimum performance
is restored. On the following pages you will find a wide variety of supplies to keep your sensors in
optimum condition. If you need something not shown, just call. Broadley-James may have the item
in stock or be able to direct you to where it can be found.
25 mm Membrane Cartridges
The OxyProbe
®
25 mm membrane cartridges are a rather complex item. The body is composed of a
chemical resistant polymer with a unique silicone internal bladder which contains the internal elec-
trolyte. The shape of this bladder, combined with the shape of the polymer body, allows for the
expansion of the electrolyte during the sterilization cycle without distortion of the actual sensing
membrane. The sensing membrane is reinforced with an internal stainless steel mesh. Rather than
use a nickel-plated brass membrane retainer ring, Broadley-James uses a 316L stainless steel retain-
er. The combined effect of these improvements is a durable, yet precise and repeatable, membrane
cartridge assembly. Each membrane is individually leak tested and visually inspected under high
magnification prior to packaging in its own protective vial.
O-rings
One of the smallest parts plays one of the biggest roles. O-rings are the first and only defense
against contamination. To properly perform their intended function o-rings must have the proper
fit, compression, elasticity, chemical resistance, and durability. All of our o-rings are compatible with
steam sterilization and are highly chemical resistant. The sealing materials are all in accordance with
FDA guidelines. Documentation of the o-ring compliance is available upon request. O ver two pages
of this catalog are devoted to just o-rings — every size, material, and quantity that you might need
to regularly service your pH housings and D.O. sensors. An interesting and perhaps little known fact
about our o-r ing catalog pages is that the items are shown actual size! If you have an o-ring and are
not sure of the type, just place it on top of the image in the catalog. If it matches then you have
found your part.
Improved Sensor Performance & Longevity
Broadley-James Corporation (U.S. & Canada) Toll-Free: 800-288-2833 E-mail: [e-mail]
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