BENTLY 330878-51-05 Proximitor Sensor

Description

BENTLY 330878-51-05 Proximitor Sensor

Product Dimensions：

The Bently Nevada 330878-51-05 is a high-temperature 3300 XL Proximitor Sensor from the 3300 XL 8 mm Proximity Transducer System. It is an essential component of machine condition monitoring and protection systems, engineered to accurately measure vibration, position, and speed on critical industrial rotating machinery.

Product Detailed Description

The 330878-51-05 Proximitor Sensor conditions the high-frequency RF signal supplied to a proximity probe tip. As a conductive shaft target moves relative to the probe, eddy currents are generated, causing a change in impedance. The Proximitor sensor converts this change into an analog output voltage that is directly proportional to the physical distance (gap) between the probe tip and the rotating shaft target.

The 330878 series is specifically designed for high-temperature and harsh industrial applications, delivering linear output voltage over a wide temperature range.

Model Code Breakdown (330878-51-05)

Technical Parameters

Product Advantages

• High Thermal Stability: Maintains strict linearity and minimal scale factor drift over broad temperature variations, ensuring accurate readings in high-heat environments.
• Hazardous Area Approvals: The -05 option includes comprehensive global certifications (ATEX, IECEx, CSA) for safe deployment in Zone 0, Zone 1, and Class I, Div 1 environments.
• Interchangeability: Fully compatible and interchangeable with standard Bently Nevada 3300 XL 8 mm probes and extension cables designed for 5.0 m system lengths.
• Noise Immunity: Excellent resistance to Radio Frequency Interference (RFI) and Electromagnetic Interference (EMI), preventing false trips on critical safety monitoring loops.

Important Considerations & Precautions

• Strict Length Matching: The 5.0-meter Proximitor sensor (-51) must be paired with an extension cable and probe combination that totals exactly 5.0 meters. Mismatching system lengths (e.g., using a 9.0 m cable) causes significant calibration and scale factor errors.
• Proper Power Polarity: The sensor requires a negative DC supply voltage (typically -24 V DC). Incorrect power terminal wiring can damage internal circuitry.
• Cable Protection & Shielding: Extension coaxial cables should be run through flexible conduit or protective armor to prevent mechanical damage. Ensure shield grounding is connected only at the monitor end to avoid ground loops.
• Target Material Calibration: Standard factory calibration assumes AISI 4140 steel. If measuring non-magnetic alloys, stainless steel, or other metals, custom calibration is required.

Product Applications

The 330878-51-05 Proximitor Sensor is deployed in continuous machine protection and predictive maintenance systems across heavy industries:

• Radial Vibration Monitoring: Measuring shaft dynamic vibration on fluid-film bearing machines.
• Axial (Thrust) Position: Monitoring axial rotor position to prevent catastrophic contact between rotating and stationary parts.
• Keyphasor / Speed Sensing: Detecting shaft rotation speed and phase reference markers for diagnostic analysis.
• Target Machinery: Steam turbines, gas turbines, multi-stage centrifugal compressors, boiler feed pumps, and heavy gearboxes in oil & gas, power generation, and petrochemical plants.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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