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Type 2734/2736 DryLoc pH/ORP Electrodes

The Signet 2734-2736 pH and ORP Electrodes features a patented reference electrode design and uses the unique foul-proof patented DryLoc® connector. The large area PTFE reference junction, salt bridge and reference electrode are constructed to increase the total reference effectiveness, resist chemical attack, and ensure long service life.

The DryLoc® connector with corrosion resistant gold plated contacts readily connects the sensor to the mating 2750 sensor electronics. The robust Ryton® threaded sensor body and choice of flat, bulb pH, or flat ORP sensing elements provide a broad range of chemical compatibility for a wide variety of applications.
There is an optional pH sensing version available for applications with HF. The HF version is for applications where traces of hydrofluoric acid (2% or less) will attack standard pH glass in levels of pH 6 and below.

The quick temperature response is available in a PT1000 temperature sensor and allows compatibility with the Signet 8900 and 9900 instruments.

The 2734-2736 electrodes are ideal for a wide range of harsh applications. The sensors incorporate ¾ inch NPT or ISO 7/1-R 3/4 threads for installing into standard pipe-tees. They can also be mounted directly into Signet standard fittings, DN15 to DN100 (½ to 4 inch).

  • Patented reference design for exceptional performance

  • Mounts in Signet standard fittings from DN15 to DN100 (½ to 4 in.)

  • ¾ in. NPT or ISO 7/1-R 3/4 threaded sensors for use with reducing tees DN15 to DN100 (½ to 4 in.)

  • Special design allows for installation at any angle, even inverted or horizonal

  • Ryton®(PPS) body and PTFE junction for broad range of chemical compatibility

  • Patented DryLoc® connector with gold plated contacts

  • Quick temperature response

Technical Details

Temperature Compensation
Process Connection
Add to Cart
3-2734-00pHFlatPT10003/4 in. NPT, threadMeasurementsCAD 159001774
3-2734-01pHFlatPT1000ISO 7/1-R 3/4 threadMeasurementsCAD 159001775
3-2734-HF-00pHFlat, HF resistPT10003/4 in. NPT, threadMeasurementsCAD 159001776
3-2734-HF-01pHFlat, HF resistPT1000ISO 7/1-R 3/4 threadMeasurementsCAD 159001777
3-2736-00pHBulbPT10003/4 in. NPT, threadMeasurementsCAD 159001778
3-2736-01pHBulbPT1000ISO 7/1-R 3/4 threadMeasurementsCAD 159001779
3-2736-HF-00pHBulb, HF resistPT10003/4 in. NPT, threadMeasurementsCAD 159001780
3-2736-HF-01pHBulb, HF resistPT1000ISO 7/1-R 3/4 threadMeasurementsCAD 159001781
3-2735-60ORPFlat, 10K3/4 in. NPT, threadMeasurementsCAD 159001782
3-2735-61ORPFlat, 10KISO 7/1-R 3/4 threadMeasurementsCAD 159001783


Fields of Application:
  • Neutralization Systems

  • Water and Wastewater Monitoring

  • Aquatic Animal Life Support Systems
  • Process Control
  • Cooling Towers
  • Effluent Monitoring
  • Sanitization Systems
  • Pool & Spa Control


GF Signet pH-ORP Monitoring and Control brochure.pdfPDF4.18 MBDownload
Automation Made Easy.pdfPDF5.11 MBDownload

Data Sheet – 2734-2736 Electrodes.pdfPDF892.44 KBDownload

Instruction Manual
Italian Manual - 2734-2736 Electrodes.pdfPDF1.85 MBDownload
Chinese Manual - 2734-2736 Electrodes.pdfPDF2.52 MBDownload
French Manual - 2734-2736 Electrodes.pdfPDF1.85 MBDownload
Korean Manual - 2734-2736 Electrodes.pdfPDF1.81 MBDownload
Spanish Manual - 2734-2736 Electrodes.pdfPDF1.86 MBDownload
Portuguese Manual - 2734-2736 Electrodes.pdfPDF1.86 MBDownload
English Manual - 2734-2736 Electrodes.pdfPDF1.9 MBDownload

Product Catalog
Installation Fittings and K-Factors.pdfPDF9.15 MBDownload


Georg Fischer Rohrleitungssysteme (Schweiz) AG
Amsler-Laffon-Strasse 9
8201 Schaffhausen

ch dot ps #at# georgfischer dot com
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