Bently Nevada 330101-00-75-15-02-05 3300 XL 8mm Proximity Probe The Bently Nevada 330101-00-75-15-02-05, also cataloged as the 330101 3300 XL 8mm...
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The Bently Nevada 330101-00-75-15-02-05, also cataloged as the 330101 3300 XL 8mm Proximity Probe, operates as a dedicated hardware component for non-contact radial displacement measurement and vibration monitoring within the 3300 XL eddy-current TSI system.
Suffix Breakdown & Model Matrix
Option Code
Parameter
Specification
330101
Product Model
3300 XL 8mm Proximity Probe, 3/8-24 UNF thread, no armor
-00
Unthreaded Length
0.0 in
-75
Overall Case Length
7.5 in
-15
Total Cable Length
1.5 m (4.9 ft)
-02
Connector
Miniature coaxial ClickLoc(TM) connector, standard plug
-05
Agency Approval
ATEX, IECEx, CSA certified for hazardous areas
Hardware Specifications
Parameter
Specification
Model Brand
Bently Nevada
Origin
United States
Weight
~0.18 kg
Dimensions
190.5 mm case length, 3/8-24 UNF thread
Operating Temp
-51 degC to +177 degC
Power Consumption
Passive device; powered via Proximitor Sensor
Linear Range
2.0 mm (80 mils)
Scale Factor
7.87 V/mm (200 mV/mil)
Frequency Response
0 to 10 kHz (-3 dB @ 10 kHz)
Target Material
AISI 4140 steel (calibration reference)
Cable Type
75 ohm coaxial
Connector Type
ClickLoc(TM) gold-plated coaxial
Minimum Bend Radius
25.4 mm
Eddy-Current Probe Scaling and Gap Voltage Validation
Calibration of the 330101 series requires matching the probe to its corresponding 3300 XL Proximitor Sensor to maintain the defined scale factor of 7.87 V/mm. During commissioning, the gap voltage must be validated against the -10 VDC target reference point to ensure linear operation within the 2.0 mm range. Any deviation beyond ±0.25 mm from nominal calibration requires re-characterization to prevent rotor dynamics measurement errors. Cross-talk suppression between adjacent probes is achieved through precise axial spacing and shielding continuity to the sensor housing ground.
Frequently Asked Questions
Q: Can the 330101-00-75-15-02-05 be used with non-Bently Nevada extension cables?
A: No. The impedance and capacitance characteristics are matched specifically to Bently Nevada 3300 XL extension cables and Proximitor Sensors; mixing brands will alter the scale factor and linearity.
Q: What is the maximum permissible bend radius during installation?
A: The coaxial cable must not be bent below 25.4 mm radius to avoid altering characteristic impedance and causing signal attenuation.
Q: Does the probe require recalibration after removal and reinstallation?
A: Yes. Upon reinstallation, verify the gap voltage at known mechanical positions to confirm that calibration remains within tolerance.
Field Installation Guidelines
Install the probe into the machine housing using proper 3/8-24 UNF thread engagement, ensuring at least five full threads of contact. Apply anti-seize compound if operating above 100 degC. Maintain continuous shield grounding from the probe connector to the termination panel to minimize EMI pickup. Route the coaxial cable away from high-current power conductors, maintaining at least 150 mm separation. Verify probe tip clearance before final tightening to prevent mechanical preload on the sensing element.
