Description

330850-51-00 | Bently Nevada | Proximity Sensor

### Product Description
The 330850-51-00 is a high-precision eddy-current proximity sensor designed for non-contact displacement and vibration measurement.
Moreover, it delivers stable output in harsh industrial environments, supporting continuous monitoring of rotating machinery health.
Therefore, it is commonly integrated into turbine, compressor, and motor protection systems for shaft position and vibration analysis.

### Technical Specifications

### Typical Applications
– Shaft axial position monitoring in steam and gas turbines
– Radial vibration measurement on centrifugal compressors
– Thrust bearing wear detection in large electric motors
– Differential expansion monitoring in power generation equipment

### FAQ
What is the standard probe diameter for this sensor?
The probe diameter is 14 mm, compatible with standard 3300 series前置器 (proximitor) systems.

Is calibration required before installation?
Yes—each 330850-51-00 must be calibrated with its matching extension cable and proximitor using Bently Nevada’s calibration procedure.

Can this sensor operate in high-temperature environments?
It is rated for continuous operation up to +120 °C at the probe tip; ambient temperature limits depend on cable and connector selection.

Does it require a separate power supply?
Yes—it requires a regulated -24 VDC supply and is designed to interface with Bently Nevada 3300 or 3500 system proximitors.

What is the nominal sensing range?
The nominal linear range is 2.0 mm (80 mils), with a sensitivity of 4.0 V/mm (100 mV/mil).

### SEO Title
Bently Nevada 330850-51-00 Proximity Sensor

### Meta Description
Bently Nevada 330850-51-00 proximity sensor delivers precise shaft displacement measurement for critical rotating machinery. Trusted in power and process industries—verify compatibility and calibrate before installation.