Hamilton ChemoTrode pH Sensors for Aggressive Media

Hamilton ChemoTrode is a pH sensor with a refillable liquid electrolyte for demanding applications in the chemical and pharmaceutical industries. It measures 0 to 14 pH at 0 to 130 °C and up to 6 bar g, and it can be sterilized and cleaned with SIP and CIP. As one of Hamilton’s distributors in Turkey, Mikron Proses (Üsküdar, Istanbul) supplies ChemoTrode sensors and provides application consulting on sensor selection for aggressive media.

Need a pH sensor for an aggressive process? → Send us your requirement

For the other Hamilton pH and ORP sensor families, see Hamilton pH and ORP process sensors; for general selection advice, see the pH electrode selection guide.

How the ChemoTrode is built

The Everef-F reference cartridge keeps the reference electrolyte free of silver and prevents the precipitation of proteins, which extends the electrode lifetime by preventing diaphragm clogging. The liquid electrolyte is refilled and pressurized through a port in the sensor, up to 6 bar. Hamilton lists fast response time and high measurement precision as benefits of the liquid electrolyte.

ChemoTrode variants

Variant	Measuring range	Reference and electrolyte	Temperature and pressure
ChemoTrode	0 to 14 pH	Everef-F, viscous 3 M KCl-LR	0 to 130 °C, 6 bar g
ChemoTrode P	0 to 14 pH	Everef-F, Protelyte	0 to 130 °C, 6 bar g
ChemoTrode Bridge	0 to 14 pH	Everef-B, Skylyte	0 to 130 °C, 6 bar g
ChemoTrode ORP	± 2000 mV (platinum ring)	Everef-F, viscous 3 M KCl-LR	0 to 130 °C, 6 bar g, CIP and SIP

All variants use an HP ceramic diaphragm. The ORP version also has a refill hole for electrolyte refilling and pressurization of the reference electrolyte.

---

Which ChemoTrode variant and shaft length fit your process depends on the medium, the temperature and the installation. Tell us about your application and we will help you choose.