Specifications

Complete Rebuild Service
for 25 mm, 19 mm and 12 mm D.O. Sensors
Broadley-James provides complete D.O. sensor rebuild
service.
This service includes rebuilding, testing, polishing and certi-
fying any of the D.O. sensor designs for the cost of 1 hour of labor plus
parts. While the modular design of the 25 mm and 19 mm OxyProbe
D.O. sensors facilitates rapid rebuilding of the sensor by the customer, it
is recommended that 12 mm D.O. sensors always b e rebuilt by
Broadley-James due to the difficulty in removing the anode/cathode
assembly.
The Rebuild Service Consists of These 7 Steps:
1. Inspect the Connector Plug and Wiring
Occasionally the connector pins become bent or broken during use,
so the connector will be replaced if necessary. The optional right
angle connector minimizes cable fatigue and makes it easier to
remove the sensor. Its low profile will also provide additional clear-
ance between vessels. Any D.O. sensor with a straight connector can
easily be converted to this right angle style.
2. Replace Cathode Assembly
This is the heart of the sensor. The glass tip should never be
bumped or hit. Imperfections in the polish or curve of the tip
will affect sensor readings and calibration. For example, nicks in
the glass allow pools of electrolyte to form. During the process,
oxygen will collect in these same spots and interfere with the
reading. If a pool of electrolyte is near the platinum wire of the
cathode, the sensor will not zero.
3. Replace all O-rings
All o-rings are replaced during rebuild. The unique feature of
the Broadley-James D.O. sensor is that all seals are mechanical
seals. There are no adhesive sealants to leak or fail while the sen-
sor is in process.
C-clamp to
secure retainer
ring
316L
stainless steel
Quick connect
multi-lead cable
Large anode for
better results
and stronger
assembly
Serialized for
traceability
316L stainless
steel retainer ring
(cutaway view)
Sturdy right angle connector provides:
• Reduced cable fatigue
• Improved grip for sensor extraction
• Increased clearance between vessels
Double o-ring protects
wiring and ensures proper
torque on retainer nut
(cutaway view)
ance Maintenance Maintenance Maintenance Maintenance Maint
48
Broadley-James Corporation (U.S. & Canada) Toll-Free: 800-288-2833 E-mail: [e-mail]
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