The Bently Nevada 330703-000-050-10-11-00 serves as the primary 330703 Proximity Probes utilized to execute non-contacting displacement and vibration tracking across 3300 XL 11mm Series platforms. The hardware registers proximity variations via eddy-current field modulations on a conductive target surface, converting mechanical motion into precise RF signals for machinery protection infrastructure.

Suffix Nomenclature Breakdown

• 330703: 3300 XL 11 mm Probe base module with M14 x 1.5 metric thread, supplied without protective armor.

• -000: Unthreaded Length Option establishing 0 mm of non-threaded case space.

• -050: Overall Case Length Option defining a 50 mm mechanical housing length.

• -10: Total Length Option specifying a 1.0 meter (3.3 feet) integral system connection line.

• -11: Connector and Cable-Type Option utilizing a miniature coaxial ClickLoc connector with an integrated protector sleeve and specialized FluidLoc cable construction.

• -00: Agency Approval Option dictating no hazardous area certification is required for the build.

Hardware Specifications

Eddy-Current Probe Scaling and Cross-Talk Suppression

The 330703-000-050-10-11-00 utilizes matched internal impedance metrics to interact with the external Proximitor driver, establishing a baseline eddy-current probe scaling profile of 3.94 V/mm (100 mV/mil). Static gap calibration requires adjusting the sensor body until the gap voltage validation reads exactly -10 VDC at the geometric center of the linear curve. This calibration prevents signal saturation and preserves optimal cross-talk suppression between orthogonal X/Y channels, yielding pure high-frequency vibration data required to plot dynamic rotor dynamics behavior without electromagnetic noise artifacts.

Shipping Box Contents

• 1 x Bently Nevada 330703-000-050-10-11-00 Proximity Probe Unit

• 2 x Hexagonal Clamping Jam Nuts for M14 x 1.5 Threads

• 1 x Factory Installed ClickLoc Connector Protector

Mechanical Alignment Guidelines

• Thread Torque Control

  Mount the M14 x 1.5 threaded casing using an approved torque wrench, ensuring that maximum limits are not exceeded to avoid cracking the ceramic tip assembly.

• FluidLoc Separation Integrity

  Route the specialized FluidLoc cable body through liquid-sealed entries, ensuring the fluid-resistant barrier maintains containment limits across the target machine enclosure.

• Minimum Bending Constraints

  Maintain a physical bend radius of not less than 25.4 mm (1.0 inch) during line installation to prevent micro-fractures in the internal coaxial wire insulation layer.

• Connector Protector Engagement

  Check that the pre-installed silicone connector protector is pulled tightly over the ClickLoc coupling interface to secure the path against oil and mist ingress.

Frequently Asked Questions

• Can the coaxial terminal joint of this 1.0-meter probe assembly be hot-swapped while powered?

  Yes, but breaking the connection will open the loop, immediately causing the channel OK relay to trip and dropping the output voltage to a fault state.

• What is the specific utility of the FluidLoc option on this proximity model?

  The FluidLoc cable structure incorporates internal blocks that prevent oil or process fluids from leaking through the cable core if the outer jacket is cut.

• How does an engineer confirm the physical installation gap matches technical parameters?

  Measure the voltage between the Proximitor output terminals during adjustment until the signal reaches the required -10 VDC target zone.

• Does this unarmored line option support installation inside open machinery areas?

  No, unarmored lines lack outer steel braiding and must be routed through rigid metal conduit to prevent damage from flying metal debris.

• What happens to the eddy-current probe scaling if this 1.0-meter probe is paired with an incorrect 5.0-meters extension line?

  The overall loop length would fail to match the 9.0-meters system calibration, shifting the scale factor and introducing massive measurement errors.

• What physical symptom indicates that the target shaft face has excessive electrical runout?

  The monitor will capture a recurring waveform pattern at 1x running speed, which distorts the accuracy of genuine rotor dynamics logs.

• Can this M14 x 1.5 thread assembly be forced into an imperial clearance hole?

  No, mismatching metric threads with imperial brackets will strip the hardware casing, causing misalignment and destroying the probe.

• What insulation test verify that the internal shield has not shorted to the machine case?

  Measure resistance between the outer connector barrel and the machine ground; the meter should display an open circuit reading.