AS3030-CSterilizable pH Electrode

Autoclaving and steam sterilization subject pH glass membranes and reference junctions to rapid thermal expansion, often causing electrolyte dilution and zero-point drift. The AS3030-C pH electrode incorporates a 200 Mohm sensitive membrane paired with a high-temperature resistant gel formulation and ceramic core reference element. This design maintains reference electrolyte stability, resisting toxic substances and minimizing pH offset after autoclave cycles at temperatures up to 130°C and pressures to 5 bar. Available insertion lengths include 120mm, 150mm, 225mm, 325mm, and 425mm with PG13.5 threads. Because buffer calibration intervals depend on cycle frequency, post-sterilization offset limits must be confirmed for the selected configuration. Send your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output for review.

Selecting the correct electrode connector depends on sensor wiring and environmental sealing needs. The VP (VarioPin) multi-pole connector system (VP6/VP8) carries both high-impedance glass pH signals and integrated PT1000/PT100 temperature sensor lines in one shielded cable, providing IP68 moisture protection ideal for moist or steam-sterilized bioprocess vessels. Standard coaxial connectors like S8 (paired with AS9 cables) or K8S/K9 (paired with AK9 cables) connect single-variable pH signals, requiring separate temperature wiring if needed. Cable options include standard lengths from 1m to 30m. High-humidity environments mandate sealed VP connections. Exact pinouts must be confirmed for the selected configuration. Share your medium, flow range, pressure, temperature, viscosity, tube size, process connection, and required output.