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The Bently Nevada 330703-000-060-10-02-00, also cataloged as the 330703 Proximity Probe, operates as a dedicated hardware component for physical displacement measurement within 3300 XL transducer networks.

Suffix Breakdown & Model Matrix

The part number 330703-000-060-10-02-00 designates specific physical properties based on the Bently Nevada ordering matrix:

  • 330703: Base designator for 3300 XL 11 mm Proximity Probe (with M14 x 1.5 thread).
  • 000: Unthreaded length option designating 0 mm.
  • 060: Overall case length option designating 60 mm.
  • 10: Total length option specifying 1.0 meter (3.3 feet).
  • 02: Connector and cable type option specifying miniature coaxial ClickLoc connector, standard cable.
  • 00: Agency approval option specifying no hazardous area approvals are required.

Hardware Specifications

Parameter Specification
Model 330703-000-060-10-02-00
Brand Bently Nevada
Origin USA
Probe Tip Diameter 11.0 mm
Thread Type M14 x 1.5 thread
Unthreaded Length 0 mm
Overall Case Length 60 mm
Total Probe Length 1.0 meter (3.3 feet)
Connector Type Miniature coaxial ClickLoc
Cable Armor Standard cable (without armor)
Agency Approval None (Option 00)
Operating Temp -51 to +177 deg C
Dimensions 2.5 cm * 2 cm * 12.4 cm
Net Weight 0.1 kg
Power Consumption Passive transducer sensor (0 W)

Eddy-Current Probe Scaling & Gap Voltage Validation

This 11 mm probe relies on eddy-current technology to generate a high-frequency electromagnetic field that measures the distance between the probe tip and a conductive target. To maintain standard eddy-current probe scaling of 3.94 V/mm (100 mV/mil), the probe must be connected via a matched 11 mm extension cable to a calibrated 3300 XL 11 mm Proximitor. Accurate mechanical adjustment during commissioning is necessary to achieve proper gap voltage validation, aiming for a target value of -10 VDC at the physical center of the linear calibration range. Correct physical gapping ensures optimal tracking of rotor dynamics and prevents measurement distortion caused by signal cross-talk suppression between adjacent sensor installations.

Frequently Asked Questions

Q: Can this 11 mm proximity probe be used directly with an 8 mm Proximitor sensor?

A: No. The 11 mm probe tip has distinct electrical impedance properties and a wider sensing field than an 8 mm probe. Interfacing this probe with an 8 mm Proximitor will cause severe impedance mismatching, leading to calibration failure and invalid displacement readings.

Q: What is the significance of the 1.0 meter total length option in this transducer setup?

A: The 1.0 meter probe length represents the integrated cable length. This probe must be matched with an appropriate extension cable (such as 4.0 meters or 8.0 meters) to form a complete 5.0 meter or 9.0 meter system length required by the Proximitor calibration.

Field Installation Guidelines

  • Mounting and Torque: Thread the probe into the mounting bracket or sleeve. Do not exceed a tightening torque of 22.6 N-m (200 in-lb) for the M14 x 1.5 threads to prevent damaging the internal components.
  • Adjusting the Gap Voltage: Slowly rotate the probe toward the shaft target while monitoring the Proximitor sensor output voltage. Secure the probe locknut when the voltage matches the target offset of -10.0 VDC.
  • Connector Insulation: Keep the coaxial ClickLoc terminal dry and clean during connection. Ensure the integrated connector protector covers the interface completely to isolate the shield from the machine ground casing.

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