330100-90-02 | Bently Nevada | 3300 Proximitor Sensor

Why the Bently Nevada 330100-90-02 Is Worth Having on Your Shelf

If you maintain rotating machinery — turbines, compressors, pumps, generators — you already know that vibration sensors do not last forever. Thermal cycling, mechanical shock, chemical exposure, and simple age all contribute to calibration drift. A sensor that has drifted by 10% still produces a signal. The monitor rack still displays numbers. But those numbers are wrong, and wrong numbers lead to wrong decisions — missed faults or false trips.

The 330100-90-02 | Bently Nevada | 3300 Proximitor Sensor is a genuine Bently Nevada sensor. Not an aftermarket clone. Not a "compatible replacement." Product No.: 330100-90-02; Product Type: 3300 Proximitor Sensor; Made in: U.S.A; Total Length Option: 90 = 9.0 meters (29.5 feet). We verify every unit on a calibrated test bench before shipping: scale factor, linearity, and gap voltage measured against the manufacturer specification. Units that deviate are not shipped. A printed test report with serial number, test date, and all measured values accompanies every order.

Installation is just as important as the sensor itself. For eddy-current probes, the target surface must be clean, smooth, and conductive — at least twice the probe tip diameter. Use a gap meter to set the correct voltage. Verify output at the proximitor after installation. A probe installed with incorrect gap reports incorrect vibration amplitudes. 12-month warranty. Ships within 24 hours from Shenzhen.

If you are replacing a failed sensor, consider ordering a spare at the same time. The cost of one spare sensor is trivial compared to the cost of one unplanned outage in a process critical machine. Sensors in harsh environments — high temperature, moisture, corrosive atmosphere — have shorter service lives. Having a tested spare on your shelf turns an emergency into a planned maintenance task.