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Type 2765/2767 DryLoc ORP Electrodes

The Signet 2764-2767 Differential pH & ORP electrodes are built with the DryLoc® connector a Ryton® body and PTFET reference junction to handle even the most extreme and harshest of chemical applications.

These differential electrodes use field-proven 3-electrode differential technique: the pH and reference electrodes are measured against a ground electrode, ensuring a steady and stable signal. A key feature is the reference electrode which is protected in a glass half-cell embedded in the reference chamber and is protected from compounds that may contain sulfides (S2-) and metals. To ensure long service life, the reference features a refillable electrolyte chamber and a replaceable equitransferant salt bridge. The patented porous PTFE reference junction resists fouling, clogging and chemical attack.

Other elements of the design are the solution ground, the pH/ORP electrodes, and the temperature element. The solution ground eliminates noisy measurements by draining electrical current away from the reference electrode. The pH/ORP electrodes are designed with a flat or bulb measurement surface, and a temperature device that is positioned at the tip of the measurement surface, making the temperature response of T95% less than 1 minute. Various temperature devices offered include 3 KΩ, 300Ω, or PT1000 RTD. The electrodes are used with the Signet 2750 Sensor Electronics, which provide a blind 4 to 20 mA output or use the digital (S3L) output to connect to Signet's 8900 Multi-Parameter Controller. The electrodes can also be used with the Model 2760 preamplifier to connect to the Signet's 8750 instruments.

  • Wetted Materials: Ryton, PTFE, FKM, carbon graphite, glass
  • Connection: Durable DryLoc® with gold plated connections
  • Compatible Preamp/Sensor Electronics: 2750 and 2760
  • Compatible Instruments: Use the 2760 preamplifier with the Signet 8750; Use the 2750 sensor electronics with the Signet 8900, 9900 or 9950 instruments
  • Additional Features: Differential reference for additional protection in harsh chemicals; also quick temperature response
  • In-line Mounting styles: Use the sensors 1 inch thread to mount to any in-line tee
  • Submersible mounting: Available using the back of the preamplifier or sensor electronics
  • Applications: Water treatment, water quality monitoring, scrubbers, heavy metal removal, harsh chemicals, etc.

Technical Details

Compatible Preamplifier
Add to Cart
*3-2765-1Flat2750, 2760 DryLocwith threaded connectionMeasurementsCAD 159000946
*3-2765-2Flat2750, 2760 DryLocwith threaded connectionMeasurementsCAD 159000947
*3-2767-1Bulb2750, 2760 DryLocwith threaded connectionMeasurementsCAD 159000952
*3-2767-2Bulb2750, 2760 DryLocwith threaded connectionMeasurementsCAD 159000953


  • PTFE reference junction
  • Field-proven differential design for stable measurements in the most aggressive applications
  • Integral temperature sensor. Quick temperature response
  • Water-tight DryLoc connector with foulproof gold contacts
  • Compatible with other suppliers' instruments
  • Easy sensor replacement using DryLoc electrode connector
  • Solution ground

Fields of Application:
  • Toxics Destruction
  • Water and Waste Water Treatment
  • Heavy Metal Removal and Recovery
  • Scrubbers
  • Plant Effluent
  • Plating Baths
  • Coagulation and Flocculation
  • Harsh Chemical Applications
  • Textile Dye Process
  • Surface Finishing

  • CE
  • RoHS Compliant


Automation Made Easy.pdfPDF5.11 MBDownload

Data Sheet - 2764-2767 Differential DryLoc® pH_ORP Electrodes.pdfPDF261.35 KBDownload
Temperature-Pressure Graphs.pdfPDF1.94 MBDownload

Instruction Manual
Spanish Manual – 2764-2767 Electrodes.pdfPDF1.52 MBDownload
Chinese Manual - 2764-2764 Electrodes.pdfPDF2.13 MBDownload
French Manual – 2764-2767 Electrodes.pdfPDF1.53 MBDownload
German Manual – 2764-2767 Electrodes.pdfPDF1.54 MBDownload
English Manual – 2764-2767 Electrodes.pdfPDF1.48 MBDownload
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