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The Bently Nevada 330104-00-06-10-01-05, also cataloged as the 330104 Proximity Probe, operates as a dedicated hardware component for non-contacting displacement measurement within the 3300 XL Machinery Protection System loop. The probe evaluates physical position deviations and vibration frequencies by interacting with a conductive target through an alternating radio frequency field, generating impedance modifications that are converted to analog signals by an adjacent Proximitor Sensor.

Suffix Breakdown & Model Matrix

Code Option Category Technical Configuration
330104 Base Model 3300 XL 8 mm Proximity Probe (M10 x 1 Metric Thread)
00 Unthreaded Length 0 mm
06 Overall Case Length 60 mm
10 Total Length 1.0 metre (3.3 feet)
01 Connector and Cable Type Miniature coaxial ClickLoc connector with connector protector, standard cable
05 Agency Approval CSA, ATEX, IECEx Approvals

Hardware Specifications

Parameter Specification
Model 330104-00-06-10-01-05
Brand Bently Nevada
Origin U.S.A.
Probe Tip Diameter 8 mm
Thread Interface M10 x 1 metric thread
Cable Assembly 75 Ohm miniature coaxial standard cable
Operating Temp -51 to +177 deg C
Power Consumption Sourced via external Proximitor loop
Dimensions 60 mm case length, 1.0 metre total length
Weight Less than 1.0 kg nominal

Gap Voltage Validation (-10 VDC Targets)

Correct mechanical positioning of the 3300 XL 8 mm probe tip requires a physical gap voltage validation during hot commissioning. Field engineers must adjust the probe depth within the M10 x 1 brackets until the static DC voltage measured at the Proximitor test points registers a target of -10 VDC. This -10 VDC baseline corresponds to the exact physical midpoint of the 2.0 mm (80 mils) total linear range, preventing measurement clipping caused by rotor dynamics and establishing a symmetrical window for transient peak-to-peak vibration recording.

Frequently Asked Questions

Q: What is the technical function of the integrated connector protector specified by option 01?

A: The connector protector physically seals the ClickLoc coaxial mating joint from localized environment exposure, minimizing the ingress of turbine oil, moisture, and conductive particles that induce signal drift or step changes.

Q: Is this 1.0-metre total length probe compatible with a 9.0-metre Proximitor Sensor?

A: No. The probe must be paired with an extension cable and a Proximitor Sensor configured for the same total electrical length. A 1.0-metre probe requires an 8.0-metre extension cable to maintain the impedance matching necessary for a 9.0-metre system.

Field Installation Guidelines

  • Mechanical Torque Constraints: Tighten the probe casing into the mounting port using a calibrated torque wrench; do not exceed the structural limit of 33.9 N-m (300 in-lb) to prevent thread stripping or tip distortion.
  • Coaxial Shield Isolation: Ensure the miniature coaxial cable outer jacket remains isolated from the machine case ground. Ground loops can degrade signal resolution and introduce high-frequency electrical noise into the TSI monitor rack.
  • Thread Engagement Verification: Ensure proper mounting thread alignment to avoid cross-threading. The 60 mm case length must be fully locked with jam nuts once the -10 VDC gap voltage is verified.

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