655-T pH Analyzer

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655-T pH Analyzer

pH Analyzer

The industrial pH analyzer model 655-T from IC Controls gives you maximum flexibility, reliability, and ease of use.

Model 655-T-6 is also available as a rental unit.


Easy Program Does What You Expect

  • Auto calibration, recognizes your buffers
  • Self- and sensor diagnostics
  • Fault tolerant
  • Output hold during calibration
  • Two programmable 4-20 mA outputs
  • Dual programmable alarms with self- and sensor alert
  • Optional PID control
  • Frequent adjustments by keypad prompts
  • Program remembers what you were doing
  • No long key sequences
  • Instant return to sample display
  • Easy to operate
  • LCD displays pH, temperature, alarm setpoints, and calibration status.

Easy Maintenance

  • Reliable, separately powered and optically isolated output circuit prevents computer interface problems
  • 3-Level security to protect settings
  • Durable housing withstands hosing down, survives acid and caustic fumes, humidity, etc.

Use Any Electrode

  • Submersible
  • Flow
  • Insertion / retractable

Use Any of the Following

  • Local digital indication
  • 4-20 mA signals
  • 4-20 mA PID Control
  • Adjustable alarms
  • ON-OFF control

The analyzer is 115/230 VAC operated.

IC CONTROLS has incorporated intelligence into the microprocessor analyzers via the IC Net™ Advanced Intelligence Access Program. Measurements such as conductivity can be critical to your process and must be strictly monitored and maintained. Analyzer intelligence goes beyond measurement and control; it provides the user with all necessary historical data, including events such as calibration, upsets, diagnostics and more. This information can be communicated for trending or advanced control, even to remote locations. Ultimately, the user has superior control with a competitive advantage.

The analyzer stores the last 12 monthly calibration records for communication or download and even keeps upset records! The last 20 upsets are recorded and date-stamped (ie: out of spec, alarm, power interruptions, etc.) Factors leading to alarm conditions are recalled and for measurement trend hundreds of data points can be accessed at user defined time intervals.

The optional IC Net™ Intelligence Access Program runs in your Windows-based computer using RS485/RS232 and can provide you access to multiple analyzers.

This analyzer supports and communicates diagnostics! Settings can be viewed, functions tested, calibration updated and remote operated from your computer terminal (Note: requires IC NetTM Advanced Intelligence Access Program). An optional Real-Time clock allows accurate tagging of events and duration even through power outages.

Every IC Controls microprocessor analyzer incorporates intelligence that enables advanced process control and the ability to communicate with ease and flexibility – all in one analyzer!


Selection Guide
User Manual
Engineering Specifications


Download Article

pH Theory and Measurement

pH Measuring techniques, the sensing versus the reference electrode, etc
Download Article

Our goal is to make sure you are 100% satisfied with our products.  Should you have any concerns whatsoever, we would like to hear from you. We will respond to even the most minor of issues. We appreciate your business!

“In use yes.  Customer is satisfied for sure.”   

from our Distributor about their customer using our Model 655-8  pH analyzer