Signet 3-2750-X DryLoc pH-ORP Sensor Electronics

Price: $307.65 - $512.00

Signet 2750 DryLoc® pH/ORP Sensor Electronics

The Signet 2750 pH/ORP Sensor Electronics featuring the DryLoc® connector, provides a variety of functions to suit various requirements. The 2750 has a preamplified signal and features two different outputs: a two wire 4 to 20 mA loop output with EasyCal function or a digital (S3 L) output which allows for longer cable lengths and is compatible with the Signet 8900 Multi-Parameter Controller. The 2750 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 2750 in-line version and are also available as accessories for the submersible 2750. The 2750 submersible preamplifier can also be used as an In-line preamplifier when used with the 3/4” or 1” threaded sensors including the 2724, 2774 and 2764 series electrodes. The 2750 In-line preamplifier can be used with Signet fittings up to DN100 (4 in.) and wet-tap assemblies.

Fields of Application:
  • 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
  • CE
  • Manufactured under ISO 9001 for Quality and ISO 14001 for Environmental Management
Compatible Electrodes:Signet DryLoc® pH and ORP Electrodes Models 2724-2726, 2756-2757 Wet-Tap, 2764-2767, 2774-2777
Operating Range pH0 to 14 pH
Operating Range ORP± 2,000 mV
Response Time pH< 6 sec. for 95% of change
Response Time ORPapplication dependent
Materials In-lineValox® (PBT)
Materials submersibleCPVC
Cable4.6 m/15 ft, 3-conductor shielded 22 AWG, 100 ft max.
Power12 to 24 VDC ±10%, regulated for 4 to 20 mA output / 5 to 6.5 VDC ±5% regulated recommended, 3 mA max., for digital (S3 L) output
Current output pHFixed 4 to 20 mA, isolated, = 0 to 14 pH (custom scaling available)
Current output ORPFixed 4 to 20 mA, isolated, = -1000 to 2000 mV (custom scaling available from ± 2000 mV)
Max Loop Resistance100 Ω max. @ 12 V 325 Ω max. @ 18 V 600 Ω max. @ 24 V
Accuracy± 32 µA
Resolution± 5 µA
Update Rate0.5 seconds
Error indication3.6 mA, Open input diagnostic
Digital (S3 L) outputSerial ASCII, TTL level 9600 bps
Accuracy pH± 0.03 pH @ 25 °C (77 °F)
Accuracy ORP± 2 mV @ 25 ° C (77 °F)
Resolution ORP1 mV
Available DataRaw mV, pH or ORP, temperature (pH)
Input Impedance, Z>1011Ω
Enclosure3-2750-1 & -2: NEMA 4X/IP65 with electrode connected , 3-2750-3 & -4: NEMA 6P/IP68 with electrode and watertight conduit and/ or extension pipe connected
Temperature (submersible)0 ° C to 85 ° C (32 °F to 185 °F)
Temperature (in-line)0 ° C to 110 ° C (32 °F to 230 °F)
Storage Temperature-20 °C to 85 ° C (-4 °F to 185 °F)
Relative Humidity0 to 95%, non-condensing (without electrode connected)
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IDShort DetailsPrice 
3-2750-7In-line/Submersible Sensor Electronics: Submersible Sensor electronics$512.00