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Products / Sensing & Control

Conductivity / Resistivity Electrode

Direct answer

LibertyCES has documented Conductivity / Resistivity Electrode in Aquatics / Aquariums / Water Parks / Zoos / Swimming Pools. Chemical compatibility is documented for Water/Aqueous. Documented models include GF Signet 2822, GF Signet 2850 electronics and GF Signet 2818/2819. Send James the fluid, concentration, temperature and flow for a free spec review.

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1 sector application

Where LibertyCES specs Conductivity / Resistivity Electrode

Aquatics / Aquariums / Water Parks / Zoos / Swimming Pools

Manufacturer-documented
GF Signet 2839-2842 PVDF dual-threaded electrodes (cell constants 0.01 / 0.1 / 1.0 / 10.0; 316SS electrodes, PVDF insulator, 131°C @ 2.76 bar) · GF Signet 2822 (10.0 cell, CPVC, 100-200,000 µS) · GF Signet 2850 electronics

The 2839-2842 named application list includes aquatic life support alongside water treatment/RO/cooling tower/boiler/desalination/semiconductor. Moderate because aquatics is one item in a shared list rather than a dedicated product.

1 chemical compatibility record

Chemical compatibility

Water/Aqueous

Multi-source documented
ultrapure waterdistilled waterpotable watercooling tower waterbrackish watersea watersalt wateracids/bases and concentrated cleaners (high cell constant only)
Materials: 316SS or Titanium body with carbon-fiber-reinforced PTFE insulator and EPDM O-rings (2818-2821) · CPVC body with 316SS electrodes (2822) · 316SS with PEEK insulator (2823) · PVDF insulator and process connection (2839-2842) · Hastelloy-C, Monel and Titanium electrodes available on special order · Flowline chart: 316SS rates F on saturated salt water at BOTH 40°C and 80°C, but E on sea water at both — a real, non-obvious divergence between two similar-looking aqueous media
GF Signet 2818/2819 (0.01 cell, 0.055-100 µS, 18.2MΩ-10KΩ; R.O., ultrapure water, resistivity) · 2820 (0.1 cell, 1-1000 µS; deionized/distilled) · 2821 (1.0 cell, 10-10,000 µS; distilled/drinking water, cooling tower) · 2822 (10.0 cell, 100-200,000 µS, CPVC body; wastewater, salinity, brackish, sea water) · 2823 (20.0 cell, 200-400,000 µS, 316SS with PEEK insulator, 150°C @ 6.9 bar; the only cell explicitly rated for acids/bases, cleaners and other concentrated chemicals) · 2839-2842 (PVDF insulator, dual-threaded, 131°C @ 2.76 bar) · 2850 universal sensor electronics

Models

Conductivity / Resistivity Electrode: models in the LibertyCES catalog

5 models across 1 product line from 1 manufacturer.

Manufacturer-stated values from the documents cited in the last column. A blank cell means the document doesn’t state it. Confirm exact options with a spec review.
Model / lineManufacturerTypeSize / capacity / flowPressureTemperatureWetted materialSource
Conductivity/Resistivity Electrodes
2818-2821 Standard Conductivity Electrodes
Georg Fischer (GF Signet)Instrumentation0.055uS-10000uS (0.01-1.0 cell)100–200 psi (6.9–13.8 bar)212–248 °F (100–120 °C)316SS or Titanium body, PTFE insulator, EPDM O-ringsGF Signet — Instrumentation Product Range Brochure
Conductivity/Resistivity Electrodes
2822-2823 High Conductivity Electrodes
Georg Fischer (GF Signet)Instrumentation100uS-400000uS (10.0-20.0 cell)100 psi (6.9 bar)203–302 °F (95–150 °C)CPVC or 316SS body, PEEK insulator, EPDM O-ringsGF Signet — Instrumentation Product Range Brochure
Conductivity/Resistivity Electrodes
2819-2823 Sanitary Conductivity Electrodes
Georg Fischer (GF Signet)Instrumentation0.055uS-400000uS75 psi (5.2 bar)to 266 °F (to 130 °C)316SS or Titanium, EPDM O-rings, Tri-ClampGF Signet — Instrumentation Product Range Brochure
Conductivity/Resistivity Electrodes
2839-2842 PVDF Dual-Threaded Conductivity Electrodes
Georg Fischer (GF Signet)Instrumentation0.055uS-200000uS (0.01-10.0 cell)40 psi (2.8 bar)to 268 °F (to 131 °C)316SS electrodes, PVDF insulator/connection, FKM O-ringGF Signet — Instrumentation Product Range Brochure
Conductivity/Resistivity Electrodes
2850 Conductivity/Resistivity Sensor Electronics
Georg Fischer (GF Signet)Instrumentationn/auniversal, all Signet conductivity electrodesPBT, CPVCGF Signet — Instrumentation Product Range Brochure

This table is part of the equipment catalog dataset (CSV and JSON).

FAQ

Frequently Asked Questions

What industries use Conductivity / Resistivity Electrode?

LibertyCES has documented Conductivity / Resistivity Electrode specified across 1 sector application, including Aquatics / Aquariums / Water Parks / Zoos / Swimming Pools.

How is Conductivity / Resistivity Electrode used in Aquatics / Aquariums / Water Parks / Zoos / Swimming Pools?

The 2839-2842 named application list includes aquatic life support alongside water treatment/RO/cooling tower/boiler/desalination/semiconductor. Moderate because aquatics is one item in a shared list rather than a dedicated product. — examples include GF Signet 2839-2842 PVDF dual-threaded electrodes (cell constants 0.01 / 0.1 / 1.0 / 10.0; 316SS electrodes, PVDF insulator, 131°C @ 2.76 bar), GF Signet 2822 (10.0 cell, CPVC, 100-200,000 µS), GF Signet 2850 electronics. This is moderately documented in LibertyCES's field data.

Can Conductivity / Resistivity Electrode handle Water/Aqueous?

Conductivity / Resistivity Electrode has documented compatibility with Water/Aqueous Materials to confirm: 316SS or Titanium body with carbon-fiber-reinforced PTFE insulator and EPDM O-rings (2818-2821), CPVC body with 316SS electrodes (2822), 316SS with PEEK insulator (2823), PVDF insulator and process connection (2839-2842), Hastelloy-C, Monel and Titanium electrodes available on special order, Flowline chart: 316SS rates F on saturated salt water at BOTH 40°C and 80°C, but E on sea water at both — a real, non-obvious divergence between two similar-looking aqueous media. Specific chemicals include ultrapure water, distilled water, potable water, cooling tower water, brackish water, sea water, salt water, acids/bases and concentrated cleaners (high cell constant only).

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Reviewed by James Riggins, 30+ years specifying water and chemical process equipment · Updated