Configured for transducer signal conditioning in machine protection systems, the Bently Nevada 330180-X2-05 (330180-X2-05 Proximitor Sensor) provides direct physical and electrical execution for eddy-current probe inputs.

Suffix Breakdown and Model Designation

• 330180: Base Model (3300 XL Proximitor Sensor)
• X2: System Length Option (12 for 1.0 m or 52 for 5.0 m)
• 05: Agency Approval (CSA, ATEX, IECEx)
• MOD 181634-02: Specific internal modification designator

Hardware Specifications

Mechanical Monitoring and Signal Integrity

The 3300 XL Proximitor sensor is designed to maintain strict eddy-current probe scaling. Proper gap voltage validation against -10 VDC targets is necessary during commissioning to ensure that rotor dynamics data—such as orbit patterns and vibration displacement—remain accurate. Cross-talk suppression is achieved through high-frequency carrier signal synchronization, which prevents interference when multiple probes are installed in close proximity on the same rotor shaft.

Ordering Information

• 1 x 330180-X2-05 Proximitor Sensor
• 1 x Installation and Technical Reference Manual

Field Installation Guidelines

• Grounding: The sensor case must be grounded to the machine casing or through the designated mounting plate to minimize electrical noise.
• Wiring: Use high-quality coaxial cable for probe extensions. Ensure connector couplings are tightened to finger-tight plus 1/4 turn to maintain a low-impedance connection.
• Environment: Install within a protective enclosure if the area exceeds the specified temperature rating or contains corrosive contaminants.
• Distance: Maintain separation between the Proximitor signal cable and high-voltage power leads to avoid induced electromagnetic noise in the transducer loop.

Frequently Asked Questions

• What is the primary function of the -10 VDC gap target?

  The -10 VDC target represents the nominal mid-range of the sensor's linear region, ensuring the system can detect both positive and negative shaft displacement accurately.

• Can I replace a legacy Proximitor with the 3300 XL series?

  Replacement requires verifying the total system length (probe, extension cable, and Proximitor). The 3300 XL must be calibrated for the specific system length used.

• What is the impact of agency approvals?

  The -05 option indicates the unit is certified for hazardous environments (CSA, ATEX, IECEx). Ensure all installation practices follow local intrinsic safety standards.

• How do I identify a faulty Proximitor?

  A faulty sensor often exhibits unstable gap voltage readings, total signal loss, or failure to produce the standard -17.5 to -26 VDC excitation voltage.

• Is the 330180 compatible with 3500 series monitoring racks?

  Yes, the 3300 XL series is the standard sensor input interface for the 3500 machinery protection system.

• What is the significance of the 10 kHz frequency response?

  This allows the sensor to capture high-frequency vibration data, which is essential for diagnosing transient events in high-speed rotating machinery.

• Should I use dielectric grease on the connectors?

  Dielectric grease is recommended to prevent oxidation and moisture ingress in the coaxial connections, provided it does not compromise electrical contact.

• How is the system length measured?

  System length is defined as the total length of the probe and the extension cable. The Proximitor must be matched to this specific length to maintain scaling accuracy.