606 SS Ball Valve Retractable pH Sensor, with Anti-Blowout Lip

/606 SS Ball Valve Retractable pH Sensor, with Anti-Blowout Lip

606 SS Ball Valve Retractable pH Sensor, with Anti-Blowout Lip

SS Body Ball Valve Retractable pH Sensor, with Anti-Blowout Lip

The IC Controls model 606 was designed to provide reliable pH measurement in demanding applications where pressure cannot be reduced to zero for electrode removal. The IC Controls models 605 and 617 also can handle the service. However, for safety reasons, some users prefer a positive anti-blowout lip that cannot pass through the insertion gland. The 606 provides that lip and optional safety lanyards for the ultimate double-safe design.


The model 606 sensor meets the requirement for a ball valve insertion sensor in pulp & paper stock lines and other difficult applications.

The small cross-section steel housing with epoxy-encapsulated sensor better survives the rigors of direct insertion into dense stock. Larger-diameter sensors are more subject to pressures that can cause breakage during insertion and removal caused by bending of the electrode.

This sensor was originally requested as a replaceable cartridge style. However, cartridges experienced drifting and premature failure due to moisture reaching the BNC fitting on the back of the electrode cartridge. The model 606 single-piece epoxy-encapsulated electrode eliminates the moisture problem and provides long, trouble-free operating life.

For Reliable Measurement in Tough Processes with Maximum Safety

  • The strength of 2 cm (¾ inch) diameter stainless steel
  • Stainless steel lip preventing blowout


  • Ball valve retraction alleviates process interruption during calibration or service
  • Sealed leak-free self-pressurizing design
  • Shock-mounted pH electrode for greater impact and handling survivability
  • Stable circular reference
  • Low maintenance plasticized reference slows ion flow for long life in difficult applications
  • Easy calibration
  • Stainless steel body
  • Body options: titanium, hasteloy C
  • Automatic temperature compensation available
  • IC Controls factory-certified calibration
Selection Guide
User Manual
Engineering Specifications
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pH/ORP Sensors in Metallurgical Applications

Critical Elements of the Sensor, Material Selection, Sensor Size Matters, Keeping Contaminants Out, Taking the Heat, Direct Connect versus Preamp.
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pH Theory and Measurement

What is pH? Mathematical and descriptive definition, pH measurement techniques, pH sensing electrode, glass electrode, how glass electrodes work, types of glass electrodes, temperature affects on glass, reference electrode, referenced junction impact, ceramic junctions, wood junctions, etc.
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Wiring Diagram

pH Sensor to Analyzer Connection

Electrical Schematic for Model 602, 605, 606, 607, 614, 615, 617, 625, 627, 642, 643 and 648
Wiring Diagram