GF Signet 2751 pH/ORP Smart Sensor Electronics

Submersible or in-line integral mount installation with DryLoc connectors and automatic electrode health monitoring function.

Starting at $656.00 Starting at $590.40

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Features

  • Digital S3L or 4 to 20mA loop output
  • Electrode Slope Efficiency measurement
    • Determine overall health of the pH measurement
  • Memory chip interface that allows for transferable info
    • Manufacturing, calibration, and runtime data
  • Auto configuration for pH or ORP operation
    • 0 to 14pH
    • ±2000mV ORP
  • Automatic temperature compensation
  • EasyCal calibration aid (optional)
    • Includes automatic buffer recognition
  • CE, FCC, & RoHS compliant
This is a replacement for the GF Signet 2750 pH/ORP Sensor Electronics.

The GF Signet 2751 pH/ORP smart sensor electronics feature field free calibration, out of range glass impedance, and broken glass detection to alert the operator to probe failure or maintenance needs. It 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 2751 has a preamplified signal and features two different outputs: a two-wire 4 to 20mA 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 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.

The 2751 submersible preamplifier can also be used as an in-line preamplifier when used with the 3/4 or 1 inch threaded sensors including the 2724, 2734, 2774 and 2764 series electrodes. The in-line preamplifier can be used with Signet fittings up to DN100 (4in) and wet-tap assemblies.

GF Signet 2751 pH/ORP Smart Sensor Electronics Applications

  • Water/wastewater treatment
  • Neutralization systems
  • Scrubber control
  • Effluent monitoring
  • Surface finishing
  • Flocculent coagulation
  • Heavy metal removal and recovery
  • Toxics destruction
  • Sanitization systems
  • Pool & spa control
  • Aquatic animal life support systems

Sensors/Probes

GF Signet 2724-2726 pH and ORP Electrodes
GF Signet 2724-2726 pH and ORP Electrodes

DryLoc connector with corrosion-resistant gold-plated contacts, connects to the 2760 preamplifier or the 2750/1 sensor electronics.

Some Models in Stock
Starting at $375.30
GF Signet 2774-2777 pH and ORP Electrodes
GF Signet 2774-2777 pH and ORP Electrodes

pH and ORP electrodes with DryLoc connector with gold-plated contacts featuring a PTFE double reference junction.

Starting at $640.80
GF Signet 2756-WT and 2757-WT pH / ORP Electrodes
GF Signet 2756-WT and 2757-WT pH / ORP Electrodes

Wet-tap pH and ORP electrodes featuring DryLoc connector with gold-plated contacts.

$515.70 to $597.60
GF Signet 2734-2736 pH/ORP Electrodes
GF Signet 2734-2736 pH/ORP Electrodes

Patented reference electrode design that uses the unique foul-proof patented DryLoc connector.

Starting at $617.40

Accessories

Please consider these optional accessories.

GF Signet 3719 pH/ORP Wet-Tap Assembly
GF Signet 3719 pH/ORP Wet-Tap Assembly

pH/ORP wet-tap assembly allows electrode installation without process shutdown.

Starting at $1,274.40
GF Signet Installation Fittings
GF Signet Installation Fittings

Fittings for securing insertion style flow sensors with different styles, models & materials to suit a variety of applications.

Some Models in Stock
Starting at $283.50
GF Signet 2759 pH/ORP System Tester
GF Signet 2759 pH/ORP System Tester

Battery-powered millivolt generator simulates pH values for trouble-shooting and system verification.

Starting at $613.80
GF Signet 8050 Universal Mounting Kit
GF Signet 8050 Universal Mounting Kit

Kit for mounting a field mount transmitter on a pipe, wall or other stationary surface near a sensor.

In Stock
$99.00 $89.10
GF Signet Liquid Tight Connector Kit
GF Signet Liquid Tight Connector Kit

Liquid Tight Connector Kit, NPT (1 pc.).

Select options for pricing
GF Signet 3-0252 Configuration Tool
GF Signet 3-0252 Configuration Tool

Interfaces with Signet SmartPro transmitters and blind sensors, allowing fast and easy configuration using a PC.

In Stock
$386.00 $347.40
GF Signet Universal Mount Junction Box
GF Signet Universal Mount Junction Box

Universal mount junction box with EasyCal.

In Stock
$212.00

Here's how some of our customers use this product...

Easy Removal and Installation Without Needing Sealant

The Background: Our customer makes water treatment skids used to treat wastewater in the food and beverage industry. They seek a reliable means of testing the pH of wastewater while allowing easy access to the electrode for recalibration.

The Problem: All instruments drift over time and must be periodically recalibrated to ensure maximum accuracy. pH electrodes are no different. Unfortunately, installations often fail to provide easy access to the electrodes leaving it up to technicians to disassemble piping to calibrate the electrode and then reassembling when the calibration is complete.

The Solution: We recommended the GF Signet 2751 pH/ORP smart sensor electronics which includes a process seal made via O-rings when used in conjunction with GF Installation fittings. The O-ringsd allow easy access into the housing to calibrate the electrodes without the need to reapply thread sealant.

Part Number Price Available
3-2751-3
Show Configuration
$590.40 23 in stock
3-2751-2
Show Configuration
$675.90 9 in stock
3-2751-1
Show Configuration
$610.20 2 in stock

Interested in Other Part Numbers?

Other part numbers are available to order but are not currently in stock. Current availability for non-stock parts is "Usually ships in 6-8 weeks". Click here to select options