2750 and 2760 pH ORP Sensor Electronics



  • Inline or submersible install
  • pH or ORP operation
  • Patented DryLoc® connector

2750 and 2760 pH ORP Sensor Electronics

Sensor electronics and pre-amplifiers for Signet DryLoc® pH and ORP electrodes with versions for in-line integral mount and submersible installation.

The Signet 2750 and 2760 pH/ORP Sensor Electronics and Preamplifiers, featuring DryLoc® connectors, provide a variety of functions to suit various requirements.

The 2760 is a pre-amplifier that allows any DryLoc® pH/ORP electrode to work with most Signet instruments. It is also sold as a simple connector for use with other manufacturers’ instruments that do not require a pre-amplified signal.

​The 2750 comes with the same pre-amplified signal as the 2760 but features two different outputs: a two-wire 4 to 20 mA loop output, or a digital (S3L) output which allows for longer cable lengths and is compatible with the Signet 8900 Multi-Parameter Controller. The 2750 devices self-configure 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 Signet 2750 and 2760 pH/ORP Sensor Electronics features include:​

  • In-line integral mount and submersible installation versions
  • Automatic temperature compensation
  • Auto configuration for pH or ORP operation
  • Optional EasyCal calibration aid
  • Automatic buffer recognition
  • Junction boxes for convenient wiring
  • Compatible with 3719 pH/ORP Wet-Tap

Typical Applications:​​

  • Water & wastewater treatment
  • Neutralisation systems
  • Scrubber control
  • Effluent monitoring
  • Surface finishing
  • Flocculent coagulation
  • Heavy metal removal and recovery
  • Toxics destruction
  • Sanitisation systems
  • Pool & spa control


Manufacturer: GF Signet

Part Ref: 3-2750-x

IWN: ANA-338293

Liquid: Clean Water, Dirty Water

Media Type: Liquids

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Product Specification

Dryloc® pH or ORP sensor electronics & pre-amplifiers.

Specification Detail of the Signet 2750 and 2760 pH/ORP Sensor Electronics:

Operating Range

0 to 14 pH, +2000 mV


NEMA 4X/IP65 with electrode connected, NEMA 6P/IP68 with electrode and watertight conduit and/or extension pipe connected.

Response Time

pH: <6 sec for 95% of change, ORP: application dependent


​±32 µA


Inline: Valox (PBT), Submersible: CPVC

Update Rate

0.5 seconds

Digital (S³L) Output

Serial ASCII, TTL level 9600 bps

Cable Length

​4.6m (15ft), 22 AWG

Fluid Type


Applicable Liquids

Clean water, dirty water


12 to 24 VDC, 5 to 6.5 VDC




Operating Temp

​0° to 85°C

2750 and 2760 pH ORP Sensor Electronics

Part Ref: 3-27xx

IWN: ANA-116570

The Signet 2764 – 2767 range of differential pH/ORP Electrodes are built with the DryLoc connector, a Ryton®...

2774 – 2777 Threaded

Part Ref: 3-77xx

IWN: ANA-424339

The Signet 2774 – 2777 threaded pH & ORP electrodes feature a unique foul-proof DryLoc® connector with gold-plated...