Bently Nevada 330103-10-25-10-02-00 – Eddy Current Proximity Transducer System | 3300 XL Series Platform
Engineering Background
The Bently Nevada 3300 XL Series represents the industry benchmark for non-contact shaft vibration and position measurement in rotating machinery protection systems. Engineered to API 670 standards, this proximity transducer system delivers sub-micron resolution and exceptional signal stability across demanding industrial environments — from gas turbines and steam turbines to centrifugal compressors and large motors.
Product Positioning
The 330103-10-25-10-02-00 is a complete eddy current proximity transducer system comprising a matched probe, extension cable, and Proximitor® sensor. This part number encodes critical dimensional and electrical parameters: 25 mm probe tip diameter, 10 mm linear range, 02 m extension cable, and standard 200 mV/mil (7.87 V/mm) sensitivity — making it directly interchangeable within certified 3300 XL installations without recalibration.
Complete Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 330103-10-25-10-02-00 |
| Series / Platform | Bently Nevada 3300 XL Proximity Transducer System |
| Transducer Type | Eddy Current (Non-Contact) |
| Probe Tip Diameter | 25 mm (1 inch) |
| Linear Range | 10 mm (0–10 mm nominal) |
| Sensitivity | 200 mV/mil ± 1% (7.87 V/mm) |
| Extension Cable Length | 2 m (02 designation) |
| Supply Voltage | -24 VDC (nominal) |
| Output Signal | -2 VDC to -18 VDC (DC voltage proportional to gap) |
| Frequency Response | DC to 10,000 Hz (-3 dB) |
| Temperature Range (Probe) | -35°C to +177°C (-31°F to +350°F) |
| Temperature Range (Proximitor) | -35°C to +85°C (-31°F to +185°F) |
| Target Material | AISI 4140 Steel (standard); other materials require calibration factor |
| Connector Type | Integral coaxial, reverse-polarity protected |
| Ingress Protection | IP67 (probe assembly) |
| Compliance Standards | API 670, CE, CSA, FM, ATEX (Zone 1/2) |
| Weight | Approx. 230 g (complete system) |
| Country of Origin | United States |
Proven Application Environments
- Gas Turbines & Steam Turbines — Shaft radial vibration, axial position, and differential expansion monitoring per API 670
- Centrifugal Compressors — Rotor dynamic measurement in high-pressure, high-temperature casings
- Large Induction Motors (>1 MW) — Bearing journal orbit analysis and rotor eccentricity detection
- Pumps & Fans — Continuous condition monitoring integrated with DCS/SCADA alarm management
- Gearboxes — Gear mesh frequency analysis and thrust position trending
- Petrochemical & Refinery Plants — SIL-rated safety instrumented systems requiring certified sensor loops
Engineering Advantages
- Matched System Calibration — Probe, cable, and Proximitor® are factory-matched and calibrated as a system; no field calibration required on direct replacement
- High Bandwidth — DC to 10 kHz frequency response captures sub-synchronous, synchronous, and high-frequency rotor events
- Intrinsic Safety Certified — ATEX/FM/CSA approvals enable installation in Zone 1 hazardous areas without additional barriers
- Reverse Polarity & Short-Circuit Protection — Integral connector design prevents installation errors in the field
- Long-Term Stability — Thermally compensated Proximitor® electronics maintain <0.5% drift over full temperature range
- Direct Interchangeability — Drop-in replacement for existing 3300 XL installations; no system reconfiguration required
System Architecture & Signal Flow
The 330103-10-25-10-02-00 operates as a three-component eddy current measurement chain:
- Probe (330103 series) — Generates a high-frequency electromagnetic field (1–2 MHz oscillator) directed at the rotating shaft target. Gap changes modulate the field impedance.
- Extension Cable (02 m) — Precision coaxial cable with controlled characteristic impedance; maintains signal integrity between probe and Proximitor® over the rated length.
- Proximitor® Sensor — Demodulates the oscillator signal and outputs a DC voltage linearly proportional to probe-to-target gap. Output feeds directly to Bently Nevada 3500 Series monitors, 1900/65A monitors, or third-party DCS/PLC analog input cards (4–20 mA conversion via signal conditioner if required).
Signal output range: -2 VDC (minimum gap / full scale) to -18 VDC (maximum gap / zero scale), with alarm and danger setpoints configured in the connected monitoring rack.
Sourcing & Quality Verification
- OEM Traceability — All units sourced through verified Bently Nevada / Baker Hughes authorized distribution channels or directly from decommissioned OEM-maintained installations
- Pre-Shipment Inspection — Each system undergoes dimensional verification, connector integrity check, and DC output linearity test against factory calibration data
- Documentation Package — Certificate of conformance, calibration record, and original OEM datasheet available upon request
- Warranty — 12-month operational warranty against manufacturing defects; replacement or full refund policy
- Anti-Counterfeit Measures — Part number laser engraving, holographic OEM labels, and serial number cross-reference verification performed before dispatch
Procurement Process
- Confirm Part Number — Verify 330103-10-25-10-02-00 against your existing system BOM or Bently Nevada installation drawing
- Request Quote — Contact support@konmask.com for volume pricing, lead time confirmation, and documentation requirements
- Order Placement — Purchase order accepted via email, Alibaba Trade Assurance, or direct Shopify checkout
- Shipping & Logistics — DHL / FedEx Express worldwide; EXW Xiamen or CIF destination available; HS Code 9031.80 for customs clearance
- Incoming Inspection Support — Konmask technical team available to support your QC incoming inspection procedure
Technical FAQ
Q: Can this transducer system be used with Bently Nevada 3500 Series monitors?
A: Yes. The 330103-10-25-10-02-00 is fully compatible with the 3500/40M, 3500/42M, and 3500/46M proximity monitor modules. Verify the monitor’s input configuration matches the 200 mV/mil sensitivity setting.
Q: What is the maximum cable length between probe and Proximitor®?
A: The extension cable in this system is 2 m (02 designation). Total probe-to-Proximitor® cable length must not exceed the rated system length; mixing cable lengths from different part numbers invalidates factory calibration.
Q: Is this part suitable for high-temperature applications above 150°C?
A: The probe is rated to +177°C. For sustained operation above 150°C, verify the probe mounting arrangement allows adequate thermal isolation of the integral cable connector from the heat source.
Q: Can the output be converted to 4–20 mA for PLC input cards?
A: Yes. A signal conditioner (e.g., Bently Nevada 3300/55 or equivalent third-party V-to-I converter) is required to convert the -2 to -18 VDC output to a standard 4–20 mA loop for PLC/DCS analog input modules.
Q: Do you provide ATEX documentation for Zone 1 installations?
A: Yes. ATEX certificate copies and EC Declaration of Conformity are available upon request for units destined for hazardous area installations.
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