pH/ORP Instrument for Plating
30+ years spec experience. Send James the process data and get a real answer — not a catalog page.
Request a Spec Review →What LibertyCES's vendor documentation shows
PHED explicitly named for electroplating, chrome reduction, cyanide destruction.
Products cited in this application
Real Specifications
| ProMinent PHED envelope | pH 1–12, max 80°C / 8 bar | prominent-sensors-controllers.md |
| ProMinent PHED diaphragm | 2x ceramic, double junction | prominent-sensors-controllers.md |
| ProMinent PHED named application | Explicitly named for electroplating service contaminated with Cr6+ and CN- | prominent-sensors-controllers.md |
| Chrome reduction setpoints | pH control range 2.0-2.5 optimum; ORP setpoint -300mV (-400mV max) | gf-signet-application-solutions.md |
| Cyanide destruction, batch (Stage 1) | pH raised to 11.5 using sodium hydroxide, chlorine added until ORP reaches +450mV | gf-signet-application-solutions.md |
| Cyanide destruction, two-step | Stage 1 target oxidation below 0.1 ppm; Stage 2 pH lowered with sulfuric acid, up to 4-hour detention time | gf-signet-application-solutions.md |
GF Signet's own process guidance carries an explicit safety warning: during batch cyanide destruction, acid injection must be manually locked out to prevent pH from dropping below pH 11 — dropping below that threshold risks forming toxic cyanogen chloride gas.
Chrome reduction and cyanide destruction are two of the few plating processes where a pH/ORP sensor error is a safety incident, not just an out-of-spec batch — ProMinent's PHED electrode is built with a double-junction ceramic diaphragm specifically for Cr6+/CN- contaminated process water, and the actual process setpoints are numbers a plating line's control loop has to hold, not approximate.
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
Is pH/ORP Instrument used in Plating?
PHED explicitly named for electroplating, chrome reduction, cyanide destruction. This is strong evidence.
What products are specified for pH/ORP Instrument in Plating?
Documented examples include ProMinent PHED — confirm current specifications with the manufacturer before final selection.
Ready to buy or need a fast answer? Call, text, or email James directly — (559) 395-5500 · [email protected].