647 pH Sensor, resistant to Cyanide, Sulfide and Ammonia

/647 pH Sensor, resistant to Cyanide, Sulfide and Ammonia

647 pH Sensor, resistant to Cyanide, Sulfide and Ammonia

pH Sensor resistant to Cyanide, Sulfide and Ammonia

This sensor is designed to survive in sulfides, cyanides and ammonia environments often found in Mines, Concentrators and Refineries.

It is bigger and more rugged than conventional pH sensors. The patented ‘solid polymer’ pH reference design is used to give fast response and long life even with constantly fluctuating temperature, pressure, oily coatings and poisoning ions. This submersible sensor is compatible with many existing installations and analyzers. The sensor body is CPVC (or optional PVDF) with the sensing electrode encapsulated with a PPS liner for prolonged reliability. For submersion, it mounts on a 3/4″ FNPT thread in the end of a support pipe or it can be suspended from it’s lead.





  • Signficant savings are realized from ‘no pH error’ and sustainable recoveries at lower cost.
  • This sensor is not affected by hydrogen sulfide, cyanide, ammonia, nictric acid, strongs acids or high chlorides.
  • The ‘solid junction’ stops ion flow and it’s resulting drift. The reference can not be poisoned.
  • It is not affected by flotation chemical filming agents that clog or plug proous junctions.
  • The sensor is big and rugged to survive shocks, sharp rock abrasions, being dropped in a chemical cleaner bucket and possibly even being run over by a truck.
  • No maintenance pH reference.
  • Reduced environmental waste due to the operating life of the sensor typically lasting 3 – 5 times longer than conventional pH sensors.
  • Complete encapsulated design allows total submersion.
  • Compatible with all pH analyzer brands. Some brands may require an interface component.

Our Commitment

  • Safe and easy installation
  • Reliable source of supply
  • Reasonable prices
  • Consistent quality
  • Supporting the EICC (Electronics Industry Citizenship Coation) and GeSI (Global e-SUSTAINABILITY initiative Feb 27, 2014)
    Ensuring that ‘Conflict Minerals’ come from conflict free sources and to prevent armed groups from benefiting from the use of force and human rights abuses.
Selection Guide
User Manual
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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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