Ambient to 2000 psi (13 MPa).
Higher pressure models available
Temperature: Model A1: 80°C (176°F) to 150°C (302°F) Model A2: 100°C (212°F) to 230°C (446°F)
Model C : 150°C (302°F) to 343°C (650°F)
316L Stainless steel (standard),
Ti and C-276 available
Modified Ag/Ag2O, Cu/Cu2O, or Ni/NiO
ZrO2-based high-temperature and high-pressure pH electrodes are divided into three types (A, B, and C).
Types A and B pH electrodes have a compression fitting and an insertion tube. Type A has an NPT fitting with a metal seal that will be locked to the insertion tube after first use (insertion depth one-time adjustable only). Type B has an NPT fitting with a soft seal that can be repositioned on the insertion tube after each use (insertion depth fully adjustable). The NPT fittings for Types A and B designs are sold separately.
Type C pH electrode has a thread fitting. If the NPT size is 1/4" or larger, a thin-walled protection tube may be provided. Type C design is ultra compact and may be used in autoclaves that have smaller access ports (1/8" or 1/4" NPT). The insertion depth for Type C is fixed at factory (non adjustable).