30000-00-13-36-02 is a factory pre-calibrated flush-type eddy-current proximity probe from Bently Nevada 30000 series, designed and manufactured per API670 international standard for turbomachinery supervisory instrumentation and rotating equipment protection systems. When paired with factory-certified matched extension cable and compatible proximitor transducer, the probe forms a complete closed-loop non-contact displacement measurement circuit based on eddy-current induction principle. It converts real-time clearance variation between flush sensing end face and metallic rotating shaft into proportional linear DC voltage signals to continuously monitor radial shaft vibration, axial thrust displacement and Keyphasor rotational speed. This sensing unit is widely deployed on critical high-speed rotating equipment including steam turbines, centrifugal compressors, turbo-generator sets, boiler feedwater pumps and industrial blowers across thermal power generation, petrochemical refining and heavy metallurgy industries. Every finished probe passes full-loop capacitance matching test, wiring continuity inspection, alternating high-low temperature cyclic aging and connector sealing durability test before delivery, ensuring stable linear output and reliable measuring accuracy under harsh industrial environments with drastic ambient temperature swing, dense lubricant oil mist and complex electromagnetic interference. All analog measured signals are transmitted to Bently 3500 monitoring rack, on-site DCS or PLC control system to trigger pre-alarm and emergency trip interlock, preventing severe mechanical breakdown caused by excessive rotor deflection and over-limit vibration amplitude.