Product Overview
Bently Nevada 330905-14-19-10-02-05 Original Spare 3300 XL Compatible: System Stability & Industrial Spare Maintenance Value
In high-stakes industrial environments — rotating machinery, turbines, compressors, pumps, and generator sets — continuous vibration monitoring is not optional. It is the backbone of predictive maintenance and unplanned downtime prevention. The Bently Nevada 330905-14-19-10-02-05 eddy-current proximity probe is a precision-engineered original spare component within the renowned 3300 XL Series monitoring platform, trusted by maintenance engineers and reliability teams across power generation, oil & gas, petrochemical, and heavy manufacturing sectors worldwide.
When a proximity probe fails or degrades, the consequences extend far beyond a single sensor replacement. Shaft position data becomes unreliable, vibration alarms may fail to trigger, and the entire condition monitoring loop is compromised. Sourcing a verified original replacement — the 330905-14-19-10-02-05 — ensures your 3300 XL monitoring system continues to deliver the measurement accuracy and signal integrity your protection system depends on.
Critical Technical Specs Table
| Part Number |
330905-14-19-10-02-05 |
| Brand |
Bently Nevada (Baker Hughes) |
| Series |
3300 XL Proximity Transducer System |
| Sensor Type |
Eddy-Current Proximity Probe |
| Probe Length |
14 inches (355.6 mm) |
| Cable Length |
19 inches (482.6 mm) |
| Tip Diameter |
10 mm |
| Thread Size |
M10 x 1 |
| Sensitivity |
200 mV/mil (7.87 V/mm) nominal |
| Linear Range |
Approx. 0–80 mil (0–2.03 mm) |
| Operating Temperature |
-35°C to +121°C (-31°F to +250°F) |
| Target Material Compatibility |
AISI 4140 steel (standard); other ferrous/non-ferrous with calibration |
| Connector Type |
Integral coaxial cable with standard BNC/TNC interface |
| System Compatibility |
3300 XL 8mm Proximitor® Sensor (e.g., 330180 series) |
| Application |
Shaft radial vibration, axial position, differential expansion monitoring |
| Mounting |
Threaded bracket mount, locknut included |
| Origin |
USA |
| Condition |
Original, tested before shipment |
| Warranty |
12 Months |
Preventive Maintenance Strategy
Experienced maintenance engineers know that a proximity probe replacement is rarely an isolated event. The 330905-14-19-10-02-05 operates as part of a tightly integrated measurement chain. When performing a scheduled outage or responding to a vibration alarm, it is best practice to inspect and — where service life warrants — replace the entire transducer loop simultaneously.
The 3300 XL proximity probe works in conjunction with the Bently Nevada 330180-X1-05 Proximitor® Sensor (signal conditioning module), which converts the probe’s raw impedance signal into a calibrated DC voltage output. If the probe is being replaced due to cable damage, tip wear, or sensitivity drift, the Proximitor® sensor should be bench-tested at the same time to confirm it remains within specification. A degraded Proximitor® will produce erroneous gap voltage readings even with a new probe installed.
The interconnecting extension cable — typically a 3300 XL series armored coaxial cable such as the 330130-045-00-CN — is another component that deserves attention during any probe changeout. Extension cables are subject to mechanical fatigue, connector corrosion, and insulation breakdown, particularly in high-vibration or high-temperature zones near turbine casings. Replacing the probe without inspecting the extension cable leaves a known failure point in the loop.
At the control cabinet level, the 3500/42M Proximitor®/Seismic Monitor rack card processes signals from multiple proximity channels. During a planned outage, maintenance teams should verify that the monitor card’s channel calibration constants still match the installed probe-cable-Proximitor® combination. Mismatched calibration data is a common source of false alarms and missed trips after a field replacement.
For facilities running extended machinery trains — such as multi-stage compressors or steam turbine-generator sets — it is advisable to maintain a minimum of two spare 330905-14-19-10-02-05 probes per critical machine, alongside spares for the 330180 Proximitor® Sensor, the 3500/22M Transient Data Interface module, and the 3500/15 Power Supply module. A single failed power supply can take an entire 3500 rack offline, rendering all connected proximity channels inoperative simultaneously.
When conducting a full control cabinet inspection, also verify the condition of terminal blocks and field wiring connectors at the junction box. Loose or corroded terminals introduce resistance into the measurement loop, shifting the gap voltage baseline and potentially triggering nuisance alarms. Pairing a probe replacement with a terminal block inspection and torque verification is a low-cost step that significantly improves system reliability between outages.
For facilities with older 3300 Series (non-XL) installations, the 330905-14-19-10-02-05 is compatible with the 3300 XL Proximitor® system and represents a direct upgrade path that preserves existing probe mounting hardware while delivering improved signal conditioning performance. This makes it an ideal component for legacy system life extension programs, where full platform replacement is not yet justified but reliability improvements are required.
Strategic Replacement Solutions
The 330905-14-19-10-02-05 is a direct original replacement for worn, damaged, or end-of-life proximity probes in 3300 XL monitoring systems. Its standardized 10 mm tip diameter, M10 x 1 thread, and 14-inch probe length mean it installs into existing probe holders without modification, eliminating the need for mechanical rework during an emergency replacement scenario.
For maintenance teams managing aging machinery fleets, sourcing original Bently Nevada components — rather than uncertified aftermarket alternatives — is critical. Aftermarket probes may exhibit sensitivity deviations outside the ±1% tolerance required for API 670-compliant vibration monitoring systems. A probe that reads 5% high on shaft vibration can trigger unnecessary trips; one that reads 5% low may fail to protect the machine during a genuine fault event. The 330905-14-19-10-02-05 is supplied as an original component, tested to Bently Nevada factory specifications before shipment.
Reducing mean time to repair (MTTR) is a core objective for any reliability-centered maintenance program. Having the 330905-14-19-10-02-05 in your on-site spare parts inventory means that when a probe fails — whether due to physical damage during a rotor inspection, cable fatigue, or sensitivity drift identified during a calibration check — your team can execute the replacement within a single shift rather than waiting days or weeks for procurement. In industries where one hour of unplanned downtime can cost tens of thousands of dollars, the inventory carrying cost of a spare proximity probe is negligible by comparison.
All units supplied by TOPNLMS are individually tested prior to shipment, packaged to prevent transit damage, and covered by a 12-month warranty. Fast international shipping is available to support urgent maintenance requirements globally.
Support FAQ
Q1: Is the 330905-14-19-10-02-05 compatible with my existing 3300 XL Proximitor® Sensor?
Yes. The 330905-14-19-10-02-05 is designed specifically for use with the Bently Nevada 3300 XL 8mm Proximitor® Sensor (330180 series). The probe, extension cable, and Proximitor® must be used as a matched system. If you are replacing only the probe, ensure your existing Proximitor® and extension cable are within calibration and in good condition. Contact us with your full part numbers if you need compatibility verification before ordering.
Q2: How is the unit tested before shipment?
Each 330905-14-19-10-02-05 unit undergoes functional testing prior to dispatch, verifying tip impedance, cable continuity, and connector integrity. Units that do not meet Bently Nevada specification tolerances are not shipped. A test report can be provided upon request for critical applications.
Q3: What is the warranty coverage and what does it include?
All units are covered by a 12-month warranty from the date of shipment. The warranty covers manufacturing defects and functional failures under normal operating conditions. It does not cover physical damage caused by improper installation, over-range mechanical impact, or chemical exposure beyond the rated environmental specification. Warranty claims are processed promptly — contact [email protected] with your order number and a description of the issue.
Q4: Can I use this probe to replace an older 3300 Series (non-XL) probe?
The 330905-14-19-10-02-05 is a 3300 XL Series component and requires a 3300 XL Proximitor® Sensor for correct operation. It is not directly interchangeable with probes designed for the earlier 3300 Series Proximitor® without also upgrading the Proximitor® module. If you are planning a partial system upgrade or legacy system life extension, contact our technical team to confirm the correct component combination for your installation.