Bently Nevada 330780-90-00 3300 XL 11 mm Proximity Sensor Transducer System

Bently Nevada 330780-90-00 Proximitor Sensor

Manufacturer: Bently Nevada (Baker Hughes)

Model: 330780-90-00

Type: 3300 XL 11 mm Proximitor™ Sensor

SKU/Catalog No.: 330780-90-00

Product Overview

The Bently Nevada 330780-90-00 is a high-performance, non-contact Proximitor Sensor belonging to the renowned 3300 XL Series. Designed specifically for critical rotating machinery protection, this sensor works in conjunction with a compatible 11 mm probe and extension cable to form a complete transducer system.

Utilizing advanced eddy current technology, the 330780-90-00 provides a stable output voltage directly proportional to the distance between the probe tip and the conductive target. It is engineered to measure both static (position) and dynamic (vibration) values, making it an essential component for Condition Monitoring (CM) and Machinery Protection Systems (MPS).

Key Features & Benefits

API 670 Compliance: Fully compliant with the American Petroleum Institute (API) 670 Standard (4th Edition) for mechanical configuration and temperature stability, ensuring it meets the highest industry standards for critical machinery .

Full Interchangeability: Unlike older models, the 3300 XL system supports complete interchangeability of probes, extension cables, and Proximitor sensors. This eliminates the need for end-of-manufacturing line matching or bench calibration, significantly reducing maintenance downtime.

High Temperature Stability: Engineered to perform in harsh environments, offering reliable operation across extreme temperature ranges typical in petrochemical and power generation facilities.

Enhanced RFI/EMI Immunity: Provides robust resistance to electrical interference, ensuring signal integrity even when installed near variable frequency drives (VFDs) or other high-frequency noise sources.

Technical Specifications

Parameter Specification

Part Number 330780-90-00

Series 3300 XL

Probe Diameter 11 mm (0.43 in)

System Length 9.0 meters (29.5 feet) - includes probe and integral cable

Mounting Option Panel Mount (-90 suffix)

Output Sensitivity 3.94 V/mm (100 mV/mil)

Linear Range approx. 2 mm (80 mils) 

Frequency Response 0 Hz to 10 kHz (typical) 

Power Requirement -17.5 Vdc to -26 Vdc (12 mA max consumption) 

Operating Temp (Probe) -51°C to +177°C (-60°F to +350°F) 

Operating Temp (Sensor) -35°C to +85°C (-31°F to +185°F) / Some specs show -52°C to +100°C 

*Note: The "-90" suffix in the model number denotes a 9.0-meter system length with a panel mount. The "-00" suffix denotes no agency approval required (standard option) .*

Model Number Breakdown

Understanding the Bently Nevada part numbering logic helps ensure you select the correct device:

330780: Base part number for the 3300 XL 11 mm Proximitor Sensor.

-90: 9.0 meter (29.5 feet) system length, Panel Mount.

-00: Agency Approval (None required / Standard unit).

Applications & Industry Use Cases

The Bently Nevada 330780-90-00 is best suited for high-reliability industries where rotating machinery uptime is critical. Typical applications include:

Oil & Gas: Monitoring compressors, pumps, and turbines in high-temperature, high-pressure environments .

Power Generation: Vibration and position monitoring on gas turbines, steam turbines, and generators to prevent catastrophic failures.

Aerospace Testing: Engine vibration analysis and high-temperature test stand monitoring.

Heavy Manufacturing: Condition monitoring of rolling mills, fans, and other heavy rotating equipment.

System Compatibility

This sensor is backwards compatible with legacy systems and integrates seamlessly with:

3500 Series Monitoring Systems (may require proper configuration/software updates).

3300 XL Series Proximity Probes and Extension Cables.

Replaces older 7200 series 11 mm and 14 mm transducer systems for a complete upgrade path.