Configured for displacement and vibration measurements in machinery protection systems, the Bently Nevada 330103-00-11-10-02-00 (330103 Proximity Probe) provides direct physical/electrical execution. This non-contacting sensor transduces the dynamic gap between the probe tip and a conductive target into an electrical signal managed by a 3300 XL Proximitor Sensor. The assembly facilitates accurate monitoring of static shaft position and dynamic vibration parameters through high-frequency inductive coupling.

Suffix Breakdown

• 330103: 3300 XL 8 mm Proximity Probe, M10 x 1 thread, without armor.

• 00: Unthreaded length option (0.0 in).

• 11: Overall case length option (1.1 in).

• 10: Total length option (1.0 m / 3.3 ft).

• 02: Connector and cable option (Miniature coaxial ClickLoc connector with protector).

• 00: Agency approval option (No approvals required).

Hardware Specifications

Mechanical Monitoring and Probe Dynamics

The 8 mm eddy-current probe scaling is physically calibrated for AISI 4140 steel targets. For operational readiness, gap voltage validation (-10 VDC targets) must be performed at the Proximitor sensor output to ensure the probe is positioned at the linear center of its measurement range. Effective rotor dynamics analysis requires this precise baseline. Furthermore, cross-talk suppression must be addressed during multi-probe installation by adhering to minimum radial and axial spacing requirements, ensuring independent signal processing of X and Y vibration planes.

Ordering Information

• 1 330103-00-11-10-02-00 Proximity Probe with 1.0 m integrated coaxial lead wire

• 2 M10 x 1 Hex Jam Nuts

• 1 ClickLoc Connector Protector Cap

• 1 Installation Technical Documentation

Field Installation Guidelines

• Mounting and Engagement

• Install the probe into the mounting bracket using a minimum of 5 full threads of engagement to ensure mechanical stability.

• Adjust the probe position until the required gap voltage is achieved and torque the locknuts to a maximum of 5.1 N-m (45 in-lb).

• Routing and Grounding

• Enforce a minimum bend radius of 25.4 mm (1.0 in) for the coaxial cable to avoid damaging the internal dielectric.

• Route probe cabling through dedicated grounded conduit, keeping it physically isolated from AC power or high-voltage lines to minimize noise induction.

Frequently Asked Questions

• What baseline output is required for probe calibration?

  The probe must be physically gapped to result in a -10 VDC output from the associated Proximitor, corresponding to the midpoint of its linear range.

• Can this probe operate without the 3300 XL Proximitor?

  No, this is a passive device. It must be paired with the matched 3300 XL Proximitor to convert impedance changes into a readable DC voltage.

• Is the 1.0 m integral cable length changeable?

  No, the cable length is an integral part of the tuned system. Any alteration will shift the system capacitance and invalidate the calibration.

• What target material is factory calibrated for this model?

  The calibration is performed using AISI 4140 steel. Using other conductive materials will alter the scale factor and requires recalibration.

• Is the ClickLoc connection hot-swappable?

  Yes, the coaxial connection can be disconnected or reconnected while the system is energized, though it will trigger a channel fault signal.

• How does humidity affect the connector?

  Moisture creates leakage paths that skew gap readings. Use the provided connector protector or self-fusing silicone tape in high-humidity zones.

• Does this model include outer armor?

  No, this part number specifies the standard coaxial configuration without stainless steel armor protection.

• What happens if the probe tip touches the rotating shaft?

  The probe tip will likely suffer mechanical damage or deformation, leading to a permanent shift in the output signal or complete failure of the transducer.