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Products / Sensing & Control

pH/ORP Instrument

Direct answer

LibertyCES has documented pH/ORP Instrument in 6 industries, including Municipal Water, Municipal Wastewater and Cooling Towers. Chemical compatibility is documented for 4 chemical families, including Acids, Caustics/Bases and Oxidizers/Disinfectants. Documented models include ProMinent PHES, GF Signet 2774-2777 and Icon TB450. Send James the fluid, concentration, temperature and flow for a free spec review.

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6 sector applications

Where LibertyCES specs pH/ORP Instrument

Municipal Water

Multi-source documented
ProMinent PHES · GF Signet 2774-2777

Drinking water explicitly named sector.

Municipal Wastewater

Multi-source documented
Icon TB450 · GF Signet 2750-7

Municipal sewage and industrial wastewater treatment explicitly named.

Cooling Towers

Multi-source documented
ProMinent cooling tower controller

Cooling Tower explicitly named with Legionella risk context.

Chemical Processing

Multi-source documented
GF Signet 2774-2777 · Icon P14 Series

Chemical Processing explicitly named sector.

Plating

Multi-source documented
ProMinent PHED

PHED explicitly named for electroplating, chrome reduction, cyanide destruction.

Food & Beverage

Multi-source documented
GF Signet pH sensors

Fruit and Vegetable Washing, Poultry and Meat Processing explicitly named applications.

4 chemical compatibility records

Chemical compatibility

Acids

Multi-source documented
Hydrofluoric Acid (>4000ppm split)Sulfuric Acid
Materials: PP body (P14H/P14F) · PTFE Teflon NEXUS · dedicated HF-resistant glass electrode
Icon P14H/P14F pH sensors · GF Signet PHEF/PHEF-DJ

Icon's P14 family has a quantified 4000ppm HF concentration breakpoint driving sensor selection; GF Signet PHEF explicitly for low-pH fluoride-containing media.

Caustics/Bases

Multi-source documented
Sodium HydroxidePotassium Hydroxide
Materials: Lead-free glass (degrades with NaOH/KOH abrasion)
ProMinent PHE/RHE electrode families · GF Signet 2764-2777

Fourth independent vendor confirmation that pH glass electrodes degrade from strong NaOH/KOH exposure.

Oxidizers/Disinfectants

Multi-source documented
ChlorineChlorine DioxideOzoneHydrogen PeroxidePeracetic AcidBromine
Materials: Platinum/Gold electrodes
ProMinent amperometric sensors · Badger Meter ATi M-Node · GF Signet 4630 chlorine analyzer

ATi M-Node explicitly called out as spanning ClO2, all 3 chlorine species, H2O2, and PAA in one modular platform.

Salts/Brines

Manufacturer-documented
Cyanide (CN-)Hexavalent Chromium (Cr6+)
Materials: Open-ring diaphragm (PHEX/RHEX)
ProMinent PHED/PHEX/RHEX

PHED explicitly named for electroplating media contaminated with Cr6+ and CN-.

Models

pH/ORP Instrument: models in the LibertyCES catalog

3 models across 3 product lines from 2 manufacturers.

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
ATi Water Quality Monitoring
Q22/Q40/Q45/Q46 Series (pH/ORP/Conductivity/DO/Fluoride/Turbidity/Ammonia)
Badger MeterInstrumentsingle-parameter transmitters/monitors-Badger Meter — Water Quality Monitoring (s::can + ATi) and RADAR
R7C Series ORP Sensor Transmitter
R7C Series
Icon Process ControlsInstrument-2000 to +2000mV32–140 °F (0–60 °C)PP shell, Platinum sensor, NEXUS referenceIcon Process Controls — Analytical Instruments + Analytical Displays
D-Series pH/ORP Controllers
D300/D400/D500/D700/U900
Icon Process ControlsInstrumentpH -2 to 16, ORP +/-2000mV14–302 °F (-10–150 °C)IP65 or IP66/NEMA 4X enclosureIcon Process Controls — Analytical Instruments + Analytical Displays

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

FAQ

Frequently Asked Questions

What industries use pH/ORP Instrument?

LibertyCES has documented pH/ORP Instrument specified across 6 sector applications, including Municipal Water, Municipal Wastewater, Cooling Towers and Chemical Processing.

How is pH/ORP Instrument used in Municipal Water?

Drinking water explicitly named sector. — examples include ProMinent PHES, GF Signet 2774-2777. This is well-documented in LibertyCES's field data.

Can pH/ORP Instrument handle Acids?

Icon's P14 family has a quantified 4000ppm HF concentration breakpoint driving sensor selection; GF Signet PHEF explicitly for low-pH fluoride-containing media. Materials to confirm: PP body (P14H/P14F), PTFE Teflon NEXUS, dedicated HF-resistant glass electrode. Specific chemicals include Hydrofluoric Acid (>4000ppm split), Sulfuric Acid.

Which chemicals can pH/ORP Instrument handle?

LibertyCES has documented chemical compatibility records for pH/ORP Instrument across 4 chemical families, including Acids, Caustics/Bases, Oxidizers/Disinfectants, Salts/Brines.

Spec Review

Send LibertyCES the process data, not a part number

Fluid, chemistry, concentration, temperature, flow, pressure, line size, and current equipment — that's what a real spec review needs to start.

Ready to buy or need a fast answer? Call, text, or email James directly — (559) 395-5500 · [email protected].

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