Reference Electrodes

Cortest offers advanced electrode solutions for High Temperature and High Pressure (HTHP) electrochemical applications inside Autoclaves. Our standard internal electrode kit includes a reference electrode, a working electrode holder assembly, a counter electrode holder assembly, and installation fittings.

Our standard Ag/AgCl reference electrode is rated for 300°C and up to 5,000 PSI. Standard construction includes a 316 S.S. or C-276 Outer tube with PTFE inner tube. The working electrode is often a customer supplied specimen that is coupled utilizing the supplied working electrode holder. The counter electrode assembly is comprised of a PtNb electrode and counter electrode holder. Working and counter electrode holder assemblies can be rated for up to 360°C.

For special applications requiring temperatures up to 360°C, a Pd/H2 reference electrode is available.  It can be ordered with a flange connection or a threaded connection as required.

More Info

  • Cortest Ag/AgCl HPHT reference electrode

    • 316 S.S. or C-276 Outer tube with PTFE inner tube

    • Rated for 300°C and up to 5,000 PSI 

    • Installation sleeve and gland nut 

    • Insertion length as needed

    Cortest Pd/H2 HPHT reference electrode

    • 316SS construction

    • Rated for 360°C at up to 5000 PSI

    • Available in flanged connection or with installation sleeve and gland nut

    • 3/8" HiP to 1/4" NPT water-cooled adapter

    • 1/4" NPT Feed-through fitting, 316 S.S. or C-276 with PEEK insulating material

    • Nickel conductor with 5-40 thread on process end

    • Rated for 360°C and up to 5,000 PSI 

    • Insulating washers

    • Insertion length as needed

    • Working electrode supplied by customer

    • 3/8" HiP to 1/4" NPT water-cooled adapter

    • 1/4" NPT Feed-through fitting, 316 S.S. or C-276 with PEEK insulating material

    • Nickel conductor with 5-40 thread on process end

    • Rated for 360°C and up to 5,000 PSI 

    • Insulating washers

    • Insertion length as needed

    • PtNb Counter electrode