pH Electrodes 2724/ 2726 and ORP Electrodes 2725

pH Electrodes 2724/ 2726 and ORP Electrodes 2725

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The Georg Fischer 2724-2726 pH and ORP Electrodes features a patented reference electrode design and uses the unique foul-proof patented DryLoc® connector. The large area PE reference junction and pathway is constructed to increase the total reference effectiveness and ensures long service life.

The DryLoc connector with corrosion resistant gold plated contacts readily connects the sensor to the mating 2760 preamplifier or the 2750 sensor electronics. The robust Ryton® threaded sensor body and choice of flat pH, bulb pH, or flat ORP sensing elements provides broad range of chemical compatibility for a wide variety of applications.

There are two optional sensing versions, HF and LC, available. The quick temperature response is available in either a PT1000 or 3 KΩ temperature sensor and allows compatibility with all Georg Fischer pH/ORP instruments. The 2724-2726 electrodes are general-purpose sensors ideal for a wide range of applications. The sensors incorporate ¾” NPT or ISO 7-1 R¾ threads for installing into standard pipe-tees. They can also be mounted directly into Georg Fischer standard fittings.

pH and ORP Electrode Features 

  • Wetted Materials: Ryton, UHMW polyethylene, FKM, glass
  • Connection: Durable DryLoc® with gold plated connections
  • Compatible Preamp/Sensor Electronics: 2750 and 2760
  • Compatible Instruments: Use the 2760 preamplifier with the Georg Fischer 8750; Use the 2750 sensor electronics with the Georg Fischer 8900, 9900 or 9950 instruments
  • Additional Features: HF and LC options available
  • In-line Mounting styles:  Standard 3/4 inch or ISO threaded fittings
  • Submersible mounting: Available using the back of the preamplifier or sensor electronics

Description

Specifications

General
Performance Efficiency >97% @ 25 °C (77 ° F)
Operating Range pH 0 to 14 pH
ORP ±2000 mV
3-2726-LC Low conductivity fluids; 20 – 100 μS/cm  nominal < 20 μS; flow must be less  than 150 ml/min  in a properly  grounded system
3-2724-HF, 3-2726-HF Hydrofluoric acid resistant glass,  pH 6 or below; trace  HF <2%

Compatibility

Temperature Sensor

2751 Smart  Sensor Electronics (for 8900, 9900, 9950, 4 to 20 mA or Profibus Concentrator),

2760 Preamplifier

Pt1000 versions Compatible with Georg Fischer 2751 pH/ORP Smart  Sensor Electronics for connection  to a PLC or to the Georg Fischer 8900, 9900 or 9950 instruments
3 KΩ Balco versions Compatible with Georg Fischer 2751 pH/ORP Smart  Sensor Electronics or with

Georg Fischer 2760 pH/ORP Preamplifier for connection  to the

Georg Fischer 8750 pH/ORP Transmitter

Process Connection

¾ in. NPT ISO 7/1-R 3/4 Mounts into Georg Fischer fittings
Wetted Materials
pH Ryton®  (PPS), glass,  UHMW PE, FKM
ORP Ryton®  (PPS), glass,  UHMW PE, FKM, Platinum
Max. Temperature/Pressure Rating
Operating Temperature Range* -10 °C to 85 °C 14 °F to 185 °F
Operating Pressure Range 6.8 bar @ -10 to 65 °C (100 psi @ 14 to 150 °F)
4 bar @ 65 to 85 °C (58 psi @ 150 to 185 °F)

*Best performance for 2724-HF, 2726-HF sensors is above 10 °C (50 °F)

Recommended Storage Temperature
0 °C to 50 °C 32 °F to 122 °F

The electrode glass  will shatter if shipped  or stored at temperature below 0 °C (32 °F)

The performance life of the electrode will shorten if stored at temperatures above 50 °C (122 °F)

Mounting
In-line Mounting Use the sensor threads
Use a Georg Fischer standard fitting up to 4 in.
Sensor can be mounted  at any angle
Submersible Mounting Use threads on models  2751 or 2760
Requires  ¾ inch NPT or ISO 7/1-R 3/4 male threaded liquid tight extension conduit.
Shipping Weight
0.25 kg 0.55 lb
Standards and Approvals
RoHS compliant, China RoHS
Manufactured under ISO 9001 for Quality, ISO 14001 for Environmental Management and

OHSAS 18001 for Occupational Health and Safety

Brand

Georg Fischer

Additional information

Options

3-2724-00 pH Sens Flat 1K DryLc NPT, 3-2724-01 pH Sens Flat 1K DryLc ISO, 3-2724-10 pH Sens Flat 3K DryLc NPT, 3-2724-11 pH Sens Flat 3K DryLc ISO, 3-2724-HF-10 pH Sens Flat HF Dloc NPT 3K, 3-2724-HF-11 pH Sens Flat HF Dloc ISO 3K, 3-2725-60 ORP Sens Flat 10K DryLc NPT, 3-2725-61_ RP Sens Flat 10K DryLc ISO, 3-2726-HF-00 pH Sens Bulb HF 1K DryLc NPT, 3-2726-HF-01 pH Sens Bulb HF 1K DryLc ISO, 3-2726-HF-10 pH Sens Bulb HF 3K DryLc NPT, 3-2726-HF-11 pH Sens Bulb HF 3K DryLc ISO, 3-2726-00 pH Sens Bulb 1K DryLc NPT, 3-2726-01 pH Sens Bulb 1K DryLc ISO, 3-2726-10 pH Sens Bulb 3K DryLc NPT, 3-2726-11 pH Sens Bulb 3K DryLc ISO, 3-2726-LC-00 pH Sens Bulb LC 1K DryLc NPT, 3-2726-LC-01 pH Sens Bulb LC 1K DryLc ISO, 3-2726-LC-10 pH Sens Bulb LC 3K DryLc NPT, 3-2726-LC-11 pH Sens Bulb LC 3K DryLc ISO

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