Product Overview

The Bently Nevada 330106-05-30-90-02-00 defines reliability in non-contact displacement sensing for critical industrial assets. Engineered specifically for reverse mount applications where internal probe access is restricted, this 8 mm 3300 XL series probe excels in monitoring radial vibration and axial thrust on high-speed turbines and compressors. Its robust eddy current technology provides linear, high-resolution data essential for preventing catastrophic machinery failure.

This probe functions as the vital link between mechanical shaft movement and the 3500 Machinery Protection System. It withstands extreme temperatures and corrosive industrial fluids while maintaining signal integrity across its entire 80-mil linear range. Engineering teams globally utilize this reverse mount configuration to simplify maintenance protocols and ensure continuous monitoring of assets within DCS environments like Honeywell Experion PKS.

Suffix Configuration and Mechanical Logic

The suffix string for the 330106 series dictates the exact physical and electrical interface required for successful installation.

Total Unthreaded Length (05)

The "05" designation specifies a 0.5-inch unthreaded length. This precise geometry allows the probe to seat correctly within the mounting bracket or housing without mechanical interference.

Overall Case Length (30)

This indicates a 3.0-inch total case length. The elongated housing provides the necessary structural support for reverse mount orientations where the probe passes through thick bearing housings.

Total Cable Length (90)

The "90" suffix signifies a 9.0-meter (approximately 29.5 feet) total length. This integrated cable eliminates the need for intermediate extension cables in many configurations, reducing signal noise and potential points of failure.

Connector and Agency Approval (02-00)

The "02" denotes a miniature coaxial connector with a stainless steel nut, while the "00" confirms standard global agency approvals for hazardous and non-hazardous industrial environments.

Performance and Physical Matrix

Mechanical Commissioning and Gapping

Proper installation requires setting the mechanical gap to the electrical center of the linear range. Engineers should aim for a gap voltage of -10.0 VDC when using a standard 3300 XL Proximitor. Because this is a reverse mount probe, ensure that the mounting bracket is securely torqued and that the probe tip does not exceed the maximum allowed protrusion into the shaft area.

Maintain a minimum bend radius of 25.4 mm (1.0 inch) for the integral coaxial cable. Sharp bends can compromise the shielding and lead to erratic signal behavior or "False Trip" scenarios. Verify that the target area on the shaft is free from scratches or surface discontinuities, as the 3300 XL system is sensitive enough to detect surface imperfections as false vibration (electrical runout).

Superior Asset Integration

The 330106 series integrates flawlessly into Turbine Supervisory Instrumentation (TSI) suites. Its high signal-to-noise ratio ensures that even minute shaft displacements are captured accurately, providing the data necessary for advanced diagnostics in System 1 software. The probe's Gold-plated Click-Loc connectors resist environmental degradation, ensuring a low-impedance path for high-frequency signals even in high-humidity or chemically aggressive plant environments.

Ordering info

(1) Bently Nevada 330106-05-30-90-02-00 Reverse Mount Probe.

(2) Integrated 9.0m coaxial cable with Click-Loc connector.

(3) Silicone connector protector.

(4) Manufacturer’s certificate of conformance and test data sheet.

Logistics and Industrial Handling

We dispatch all orders within 3-5 days when payment finish. To ensure zero-defect delivery, we utilize specialized anti-static industrial packaging and multi-layered impact-resistant cushioning. Shipments are handled exclusively by premium global couriers including DHL, FEDEX, and UPS. Each package is vacuum-sealed to prevent oxidation or moisture ingress during international transit, guaranteeing that the hardware remains in factory-perfect, sealed condition upon arrival.

Machinery Protection FAQs

Q1: Why is a 9.0m cable used instead of a standard 1.0m probe?

A1: The 9.0m total length allows for a direct run from the probe to the Proximitor sensor housing, eliminating a connection point and improving system reliability by reducing potential signal attenuation or moisture entry.

Q2: Can this reverse mount probe be installed in a standard threaded hole?

A2: No, reverse mount probes require a specific mounting sleeve or bracket. The "05" unthreaded length must match the internal bore of your mounting hardware to prevent mechanical binding.

Q3: What indicates a "Sensor Not OK" status on the 3500 rack for this probe?

A3: This typically indicates an open or short circuit in the cable, or that the probe gap is set too far (voltage more negative than -17.5 VDC) or too close (voltage more positive than -2.5 VDC).

Q4: Is this 3300 XL probe compatible with older 3300 (non-XL) systems?

A4: Yes, 3300 XL probes are generally backward compatible with 3300 Proximitors and monitoring systems, provided the total electrical length (9.0 meters) matches the Proximitor's calibration.