pH/ORP Instrument for Municipal Water
30+ years spec experience. Send James the process data and get a real answer — not a catalog page.
Request a Spec Review →Yes. LibertyCES has documented pH/ORP Instrument in Municipal Water applications, including ProMinent PHES and GF Signet 2774-2777. The right model depends on the fluid, concentration, temperature, flow and duty cycle, so send James your process data for a free spec review before final selection.
Notes from the vendor documentation
Drinking water explicitly named sector.
Products cited in this application
Real Specifications
| Spec | Value | Source document |
|---|---|---|
| PHES range/rating | pH 1–12, max 60°C / 3 bar, 1x ceramic diaphragm, lead-free glass (RoHS-compliant) | ProMinent — Measuring, Control and Sensor Technology |
| GF Signet 2774-2777 reference junction | PTFE double reference junction (two junctions, not one) | GF Signet — Instrumentation Product Range Brochure |
| GF Signet 2774-2777 reference chemistry | KNO3/KCl polyacrylamide gel reference with Ag/AgCl element | GF Signet — Instrumentation Product Range Brochure |
| GF Signet 2774-2777 poisoning resistance | Marketed specifically for blocking Cu2+/Pb2+/Hg2+ poisoning | GF Signet — Instrumentation Product Range Brochure |
Signet's own calibration guidance names pH glass electrode failure causes as coating, elevated temperature, and glass erosion "by abrasion, and strong sodium hydroxide (NaOH), potassium hydroxide (KOH) or hydrofluoric acid (HF) solutions"; a used electrode reading more than ±0.84 pH off theoretical value should be replaced.
Drinking water pH/ORP monitoring looks low-stakes until the electrode fails silently from reference-junction fouling. ProMinent's PHES pairs a lead-free ceramic diaphragm rated to 60°C/3 bar for exactly this duty, while GF Signet's 2774-2777 double-junction design exists specifically to resist the trace copper, lead, and mercury contamination municipal source water can carry.
Every claim on this page traces to real, vendor-published documentation on file with LibertyCES. Confirm current specifications with the manufacturer before final specification.
FAQ
How is pH/ORP Instrument used in Municipal Water?
Drinking water explicitly named sector.
Which pH/ORP Instrument models are specified for Municipal Water?
Documented models include ProMinent PHES, GF Signet 2774-2777. Confirm current specifications with the manufacturer before final selection.
What does LibertyCES need to size pH/ORP Instrument for a Municipal Water application?
The fluid and its concentration, operating temperature, flow or volume, pressure and suction conditions, duty cycle, and the existing equipment it replaces or connects to. James reviews it for free.
Ready to buy or need a fast answer? Call, text, or email James directly — (559) 395-5500 · [email protected].
Send James your spec
Fluid, concentration, temperature, flow or volume, and where it goes. James replies with a real answer, not a catalog page.
Reviewed by James Riggins, 30+ years specifying water and chemical process equipment · Updated