The Bently Nevada 330103-00-04-90-02-00, also cataloged as the 330103 proximity probe, operates as a dedicated hardware component for eddy‑current displacement measurement within 3300 XL transducer systems.
Suffix Breakdown & Model Matrix
330103: 3300 XL 8 mm proximity probe with M10 × 1 metric thread, no armor.
00: Unthreaded length option (0 mm).
04: Overall case length option (40 mm / 4 cm).
90: Total cable length option (9.0 m, special configuration).
02: Miniature coaxial ClickLoc connector.
00: Agency approval option — none / standard model.
Hardware Specifications
Parameter
Specification
Model
330103-00-04-90-02-00
Brand
Bently Nevada
Origin
USA
Weight
Not specified
Dimensions
Case length 40 mm; cable length 9.0 m
Operating Temp
-52 to +177 deg C (standard probe operation)
Power Consumption
Passive probe
Core Performance Indicators
Sensor type: 8 mm eddy‑current transducer; thread size M10 × 1; linear range 2.0 mm (80 mils); scale factor 7.87 V/mm (200 mV/mil); PPS tip; stainless steel case; API 670 compliance
Eddy-Current Probe Scaling
The 3300 XL 8 mm probe family is engineered for:
Gap voltage validation at -10 VDC reference targets.
Rotor dynamics monitoring with stable linearity across 0.25–2.3 mm.
Cross‑talk suppression in multi‑channel installations.
API 670 compliance, ensuring suitability for fluid‑film bearing supervisory instrumentation.
Frequently Asked Questions (FAQ)
Q: What is the primary application of this probe? A: It is used for radial vibration, shaft position, and thrust measurement on fluid‑film bearing systems.
Q: Does this configuration include hazardous area approvals? A: No. The suffix “00” specifies that no CSA, ATEX, or IECEx approvals are included.
Q: How does the long cable length affect installation? A: The 9.0 m cable length allows extended routing in large machinery housings, but shielding must be properly grounded to prevent signal degradation.
Field Installation Guidelines
Install probe tip perpendicular to shaft surface for accurate displacement readings.
Maintain insertion depth to align with -10 VDC gap reference calibration.
Route long cable runs with shielding grounded at a single point to minimize interference.
Avoid sharp bends in cable to prevent conductor fatigue.
Confirm driver calibration after installation to ensure proper sensitivity scaling.
Ensure probe case clearance in confined turbine applications.
