Product Overview
Bently Nevada 330905-08-13-10-02-05 Upgrade for 3300 XL: Smooth Transition from Legacy Vibration Monitoring Systems
Upgrading or replacing a vibration monitoring system in a live plant environment demands precision, compatibility, and minimal disruption to operations. The Bently Nevada 330905-08-13-10-02-05 NSv 8mm Proximity Probe is a direct-fit replacement and upgrade solution for facilities running the 3300 XL Series machinery protection platform. Whether you are retiring an aging 3300 Series probe assembly, migrating from an earlier 7200 Series installation, or simply replacing a failed sensor in a critical rotating machinery application, this probe is engineered to restore full system functionality with zero compromise on measurement accuracy.
The 330905-08-13-10-02-05 is an 8mm NSv (Non-Standard Voltage) proximity probe designed for use with Bently Nevada’s industry-standard eddy-current sensing technology. It is fully compatible with the 3300 XL 8mm Proximitor Sensor (such as the 330180 series) and integrates seamlessly into existing 3300 XL rack-mounted monitoring systems. The probe’s standardized 5-metre armored cable and industry-standard connector ensure that field replacement requires no rewiring of junction boxes or terminal strips in most installations, dramatically reducing planned maintenance windows and unplanned downtime.
Compatibility Comparison Table
| Parameter |
Legacy / Outgoing Model |
330905-08-13-10-02-05 (This Unit) |
| Series Platform |
3300 Series / 7200 Series |
3300 XL Series |
| Probe Diameter |
8mm |
8mm (direct fit) |
| Voltage Output Type |
Standard Voltage (Sv) |
Non-Standard Voltage (NSv) — extended range |
| Cable Length |
Varies (5m / 9m) |
5m standard armored cable |
| Connector Interface |
Standard BNC / coaxial |
Standard coaxial — backward compatible |
| Proximitor Compatibility |
330180 / 330100 Proximitor |
330180 XL Proximitor (recommended pairing) |
| Mounting Thread |
M10 x 1.0 |
M10 x 1.0 (no bracket modification required) |
| Gap Voltage Range |
−10 VDC nominal |
−10 VDC nominal (NSv extended linearity) |
| Installation Space |
Standard probe boss |
Identical footprint — no machining required |
| Communication / Signal |
Analog 4–20 mA / voltage |
Analog voltage — direct rack input |
| Replacement Recommendation |
Discontinued / EOL units |
Verified current production — in stock |
| Warranty |
— |
12-Month Warranty included |
Seamless Upgrade Solutions
A successful migration from a legacy vibration monitoring setup to the 3300 XL platform rarely involves a single component. In practice, field engineers replacing the 330905-08-13-10-02-05 probe will often find that adjacent components in the same monitoring loop also require attention. The 330180-91-00 Proximitor Sensor is the recommended signal conditioning unit to pair with this probe; it mounts directly in the 3300 XL rack and accepts the probe’s coaxial cable without any adapter. Where the existing rack is a legacy 3300 Series chassis, a rack migration to the 3300/16 Rack or a 3500 Series Rack may be evaluated to future-proof the installation.
For facilities running multiple measurement points on the same shaft, the 330905-08-13-10-02-05 is typically deployed alongside a matching radial vibration probe on the X–Y axis pair, and in many installations a 330130 Keyphasor Probe provides the phase reference signal required for vector analysis and balancing. If the existing Keyphasor probe is also approaching end-of-life, replacing both probes during the same maintenance window eliminates a second planned outage.
Where the monitoring system feeds data into a System 1 Evolution software platform or a legacy ADRE 408 DSPi data acquisition system, no software reconfiguration is required for a like-for-like probe swap — the transducer scale factor and gap voltage settings remain identical. For installations that are simultaneously upgrading from the ADRE platform to System 1, the probe replacement can be executed in parallel with the software migration, reducing total project duration.
In control cabinet environments where the Proximitor output feeds a DCS analog input card — such as a Honeywell C300 controller or an Emerson DeltaV M-Series I/O module — the 4–20 mA or voltage signal interface remains unchanged, meaning no loop recalibration or DCS tag remapping is required at the I/O level. Signal isolators such as the MTL5541 or P+F KFD2-STC4 series, if present in the loop, are fully compatible with the probe’s output characteristics.
For sites where the probe cable routing passes through hazardous areas classified as Zone 1 or Zone 2, the armored cable construction of the 330905-08-13-10-02-05 meets the mechanical protection requirements for conduit or tray installation, and the associated Proximitor carries the necessary intrinsic safety certifications when paired with approved barriers.
Retrofit Guidance FAQ
Q: Will the 330905-08-13-10-02-05 work with my existing 330180 Proximitor without any modification?
A: Yes. The probe is designed as a matched pair with the 330180 XL Proximitor. The coaxial connector, cable impedance, and gap voltage characteristics are factory-matched. Simply connect the probe to the Proximitor’s probe input port and verify the gap voltage at the recommended −10 VDC ± 0.5 VDC operating point.
Q: Do I need to update my 3300 XL rack configuration or reprogram the monitor card after replacing the probe?
A: No reprogramming is required for a direct SKU replacement. The transducer scale factor (200 mV/mil or 7.87 V/mm) is identical to the outgoing probe. If you are migrating from an Sv probe to this NSv variant, verify that the monitor card’s input configuration is set to NSv mode — this is a single parameter change in the rack configuration software.
Q: Is the physical mounting thread and probe boss diameter compatible with my existing installation?
A: The probe uses a standard M10 × 1.0 thread, which is the universal standard for 8mm Bently Nevada proximity probes. No bracket modification, re-machining of the probe boss, or new mounting hardware is required.
Q: How do I verify the correct air gap after installation?
A: Use a calibrated digital voltmeter at the Proximitor’s output. Set the probe-to-target gap to achieve −10 VDC ± 0.5 VDC on a steel target (AISI 4140 or equivalent). The linear range of the NSv probe extends from approximately −2 VDC to −18 VDC, providing a wider usable measurement range than standard Sv probes.
Q: Can this probe be used in a 3500 Series rack as well?
A: The 330905-08-13-10-02-05 is rated for the 3300 XL platform. For 3500 Series applications, a different probe SKU with the appropriate Proximitor pairing is recommended. Contact our technical team to confirm the correct part number for your 3500 Series installation.
Warranty Assurance
Every 330905-08-13-10-02-05 unit shipped by TOPNLMS is covered by a 12-month warranty from the date of delivery. Prior to dispatch, each probe undergoes functional verification including gap voltage linearity check, cable continuity test, and connector integrity inspection. Units are shipped in original or equivalent protective packaging with full traceability documentation.
In the event of a warranty claim, TOPNLMS provides a replacement unit or full refund within the warranty period, subject to inspection. Our technical support team is available to assist with installation queries, gap setting verification, and compatibility confirmation before and after purchase. Typical order processing time is 1–3 business days, with express shipping options available for urgent plant maintenance requirements.
For bulk procurement, long-term supply agreements, or project-based purchasing, please contact our sales team directly to discuss pricing, lead times, and consignment stock arrangements.