GF Piping Systems 3-2751-2, 159001805 DryLoc Smart Sensor Electronics

The GF Piping Systems 2751 pH/ORP Sensor Electronics featuring DryLoc connector, provides a variety of functions to suit various requirements. The 2751 has a preamplified signal and features two different outputs: a two wire 4 to 20 mA loop output with EasyCal function or a digital (S3L) output which allows for longer cable lengths and is compatible with the Signet 8900 or 9900 instruments, and Profibus Concentrator.

The 2751 self-configures for pH or ORP operation via automatic recognition of the electrode type. The optional EasyCal feature allows simple push-button calibration and includes an LED indicator for visual feedback. The DryLoc electrode connector quickly forms a robust assembly for submersible and in-line installations. NEMA 4X junction enclosures are integral parts of the 2751 in-line version and are also available as accessories for the submersible 2750.

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  • Recommended to be used with 8900 or 9900 instruments
  • In-Line integral mount and submersible installation versions
  • Automatic temperature compensation
  • Auto configuration for pH or ORP operation
  • Optional EasyCal calibration aid with automatic buffer recognition
  • Junction boxes for convenient wiring
  • Patented DryLoc connector provides a quick and secure connections to the sensor



  • Water and Wastewater treatment
  • Neutralization systems
  • Scubber control
  • Effluent monitoring
  • Surface finishing
  • Flocculent Coagulation
  • Heavy Metal Removal and Recovery
  • Toxic Destruction
  • Sanitization Systems
  • Pool and Spa Control
  • Aquatic animal life support systems



– Compatible Electrodes: Signet DryLoc pH and ORP Electrodes, Models 2724-2726, 2734-2736, 2756-2757 Wet Tap, 2764-2767, 2774-2777
– Operating Range: pH – 0 to 14 pH
ORP – +/-2,000 mV
– Response Time: pH – < 6 sec for 95% of change
ORP – Application dependent
– Materials: In-Line – Valox (PBT)
Submersible – CPVC

– Cable Length: 15 ft
– Power: 12 to 24 VDC or 5 to 6,5 VDC

Max Temperature/Pressure Rating
– Submersible: 32°F to 185°F
– In-Line: 32°F to 185°F
– Storage Temperature: -4°F to 185°F