605 – SS Ball Valve Retractable pH Sensor

/605 – SS Ball Valve Retractable pH Sensor

605 – SS Ball Valve Retractable pH Sensor

SS Body Ball Valve Retractable pH Sensor, with Lanyard Cables

The IC Controls model 605 was designed to provide reliable pH measurement in demanding applications where pressure cannot be reduced to zero for sensor removal.


The model 605 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 sensor.

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 sensor cartridge. The Model 605 single-piece epoxy-encapsulated sensor eliminates the moisture problem and provides long, trouble-free operating life.

For Reliable Measurement Where Tough Processes Require

  • The strength of stainless steel at only 2 cm (¾ inch) diameter
  • Sealed, disposable design
  • Solution ground
  • Ball valve retraction to alleviate process interruption during calibration or service


  • Sealed self-pressurizing design
  • Stainless steel body; optional titanium body and PVDF cartridge available
  • Stable circular reference
  • Low maintenance
  • Easy calibration
  • Temperature compensator
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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“Customer has been using IC Controls for years with a high level of satisfaction

from our Distributor about their customer in the Pulp and Paper Industry
using our Model 655-8 pH analyzer and Model 605 pH sensor
May 2015

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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
Assembly Drawing

Retractable ball valve sensor

A2100052 = option -21 for model 403 conductivity sensor and 605 pH sensor.
Assembly Drawing