Signet 3-2726-HF-01 PH-ORP Electrode & Sensors

Signet 3-272X-XX-XX Paddlewheel PH-ORP Electrode & Sensors

3-272X-XX-XX 2721 Preamplifier

Item#: 159001550 | Model#: 3-2726-HF-01 | Series#: 3-272X-XX-XX

Price: $44500

Availability: Ships within 2 to 3 weeks
$44500 /ea

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2721 Preamplifier

Pre-amplification is required to protect the output signal of pH and ORP electrodes from a wide variety of electromagnetic interferences common in industrial environments. Signet 2721 is used if remote pre-amplification is required (e.g. tank temperature >80oC) or connecting another manufacturer's electrode to the Signet 5700 or 8750 instrument. The Signet 2721 should be used with special order sensors built with cables (Signet models 277X-HT or 277X-1-HT).

Fields of Application:
  • Water and Wastewater Treatment
  • Neutralization Systems
  • Scrubber Control
  • Effluent Monitoring
  • Surface Finishing
  • Flocculent Coagulation
  • Heavy Metal Removal and Recovery
  • Toxics Destruction
  • Sanitization Systems
  • Design allows quick connect/disconnect of sensors
  • Pre-amplification for submersible and in-line installations
  • Unbreakable CPVC body
  • Designed for use with Signet pH and ORP Electrodes to assure signal integrity up to 120 m. (400 ft)
3-2726-HF-01 Product Specific Data
pH Electrodes / ORP ElectrodesBulb glass pH
pH ElectrodesBulb glass pH, HF resistant ‹2% HF
Temperature Element , Threaded Process Connection PT1000; use with 2750 sensor electronics* , ISO 7/1-R 3/4 Thread
Series Data
Efficiency >97% @ 25 °C (77 ° F)
Operating Range pH0 to 14 pH
Operating Range ORP±2000 mV
Operating Range 3-2726-LCLow Conductivity fluids; 20 - 100 μS/cm recommended
Operating Range 3-2726-HFHydrofluoric acid resist glass, pH 6 or below; trace HF <2%
Compatibility2750 Electronics, 2760 Preamplifier
pH Temperature Sensor PT1000 versions are compatible with Signet 2750 pH/ORP Sensor electronics for connection to a PLC or to the Signet 8900 MultiParameter Controller. , 3 KΩ Balco versions are compatible with the Signet 2760 pH/ORP preamplifier for connection to the Signet 5700 pH/ORP Monitor and the Signet 8750 pH/ORP
Process Connection ¾ in. NPT , ISO 7/1-R 3/4 , Mounts into Signet fittings
Wetted Materials pH: Ryton® (PPS), glass, UHMW PE, FPM , ORP: Ryton® (PPS), glass, UHMW PE, FPM, Platinum
Operating Temperature Range-10 °C to 85 °C (14 °F to 185 °F)
Operating Pressure Range -10 °C to 65 °C (14 °F to 149 °F): 0 to 100 psi / 65 °C to 85 °C (149 °F to 185 °F), linearity derated 100 psi to 58 psi / *Best performance for 2726-HF sensors is above 10 °C (50 °F)
Recommended Storage TemperatureThe best storage temperature for the 272X pH and ORP electrodes is 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)
In-line Mounting Use the sensor threads , Use a Signet standard fitting up to 4 in. , Sensor can be mounted at any angle Submersible Mounting: , Use threads on models 2750 or 2760 , Requires ¾ inch NPT or ISO 7/1-R 3/4 male threaded liquid tight extension conduit.
Shipping Weight0.25 kg 0.55 lb
Standards and ApprovalsManufactured under ISO 9001 for Quality and ISO 14001 for Environmental Management
Product Dimensions
Weight0.44 lb
Width120.00 mm, 4.72 in
Height100.00 mm, 3.94 in
Length170.00 mm, 6.69 in
Document TitleDownload
Instruction ManualsClick Here to Download
IDShort DetailsPrice 
3-0700.390pH buffer kit-(1) 4pH, (1) 7pH, (1) 10pH buffer in powder form, makes 50ml of each$7.00
3-2700.395Calibration kit-(3) polypropylene cups, (1) cup stand, (1) 4pH buffer solution, (1) 7pH buffer solution$90.00
3-2759pH/ORP system tester, adapter cable sold separately$489.00
3-2759.391DryLoc adapter cable, for 2759, use with 2750 and 2760$106.00
3822-70044pH buffer solution, (1) 473ml bottle$27.00
3822-70077pH buffer solution, (1) 473ml bottle$27.00
3822-701010pH buffer solution, (1) 473ml bottle$27.00
3822-7115Quinhydrone for ORP calibration, (1) 20mg bottle, use with 4pH and 7pH buffer solutions$125.00




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