Aquametrix Products


pH and ORP Probes

pH and ORP Probes






Combination Probes



P/R60C-5 pH/ORP Probe from Aquametrix

P/R60C-5 pH/ORP Probe

The P60C-5 pH and the R60C-5 ORP probes are the latest additions to the legendary Aquametrix differential probe family. It fills the gap for a 1” fixed insertion, MNPT probe and uses the same electrodes and salt bridge as the 1” variable insertion P60C-6 probe.

All of the P60 and P65 probes are dependable industrial grade sensors designed to provide accurate measurement and longer service life under the most demanding conditions. Some features of these probes include: differential measurement technology, replaceable salt bridge and encapsulated preamp.

The P/R60C-5 incorporates all the benefits of differential measurement found in other models of the 60 series, field proven in thousands of installations. This technique uses two glass electrodes to make the measurement differentially with respect to a third metal electrode. The domed glass process electrode is specially designed for tough applications. The second electrode is immersed in a pH 7 buffer encapsulated in the probe.

This second electrode is protected from the process by a double junction replaceable salt bridge. The resulting true differential measurement has several advantages over conventional probes: ground loop problems are virtually eliminated, and the salt bridge is easily replaced.

If the internal solution becomes contaminated, the probe can be rejuvenated at modest cost by replacing the salt bridge and reference solution. Automatic temperature compensation is accomplished through the use of a thermistor at the tip of the probe. This thermistor placement provides rapid response for process temperature variations.

The encapsulated preamplifier provides an output signal which can be transmitted 3000 feet over inexpensive cable. Another version encapsulates a blind 4-20 mA two wire transmitter which can transmit a virtually unlimited distance over a twisted pair cable.


  • 1" NPT fixed threads on both ends of sensor

  • Accurate differential measurement

  • Eliminates ground loop interference

  • Built-in pre-amp supports up to 3,000' sensor-to-analyzer distance

  • 15 ft. (5m) standard cable length

  • Replaceable saltbridge for extended service life

  • Flow-thru or submersible mounting

  • With temperature compensation device


  • Process Control

  • Industrial and Municipal Waste Treatment and Neutralization

  • Fume Scrubbers

  • Plating

  • Circuit Board Manufacturing

  • Food and Beverage

  • Chemical Processing

  • Pulp and Paper

  • Mining

  • Power Generation

PR60C-5 Datasheet
PR60 Series pH/ORP Probe Manual


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