Bently Nevada 330910-00-13-05-02-00 Retrofit-Ready Proximity Probe for 3300 XL Control Systems
The Bently Nevada 330910-00-13-05-02-00 is an 8mm eddy-current proximity probe engineered for the 3300 XL Series vibration monitoring platform. Designed to deliver precise radial and axial shaft displacement measurements, this probe is a direct retrofit-ready replacement for legacy 3300 Series installations where the original sensor has reached end-of-life, been discontinued, or is no longer available through standard supply channels. With a 5-metre integral cable, standard TipLoc housing, and full compatibility with the 3300 XL signal conditioning architecture, this unit enables plant engineers to restore continuous machinery protection without redesigning the monitoring loop or modifying existing conduit runs.
For facilities operating rotating machinery — including steam turbines, compressors, pumps, and gearboxes — unplanned downtime caused by a failed proximity probe can cascade into costly production losses. The 330910-00-13-05-02-00 is stocked and tested to support rapid deployment, with each unit undergoing pre-shipment functional verification against Bently Nevada gap voltage and sensitivity specifications (typically –18 VDC at 1.0 mm gap, 7.87 V/mm sensitivity) before dispatch.
Upgrade Compatibility Table
| Parameter | 330910-00-13-05-02-00 (This Unit) | Legacy 3300 Series Probes |
|---|---|---|
| Probe Diameter | 8 mm | 8 mm |
| Cable Length | 5 m (integral) | 5 m (integral) |
| Gap Voltage (nominal) | –18 VDC @ 1.0 mm | –18 VDC @ 1.0 mm |
| Sensitivity | 7.87 V/mm | 7.87 V/mm |
| Driver Compatibility | 3300 XL 8mm Driver (e.g. 330180-X1-05) | 3300 Series Drivers |
| Connector Type | Standard BNC / coaxial | Standard BNC / coaxial |
| Installation | Direct drop-in, no bracket modification | Original bracket retained |
| Communication | Analogue voltage output | Analogue voltage output |
| Retrofit Recommendation | Replace probe + verify driver gap calibration | — |
| Commissioning Focus | Gap voltage, polarity, OK relay check | — |
| Warranty | 12 Months | — |
Retrofit Planning for Existing Automation Systems
A successful retrofit of the 330910-00-13-05-02-00 begins well before the probe reaches the machine. Engineers should first audit the existing 3300 XL driver module — commonly the 330180-X1-05 or 330180-X1-CN — to confirm it is calibrated for an 8mm probe and that the OK setpoint window is correctly configured. The driver’s barrier terminal block wiring should be inspected for corrosion or loose terminations, as degraded connections are a frequent source of false OK relay trips after a probe swap.
Where the monitoring rack includes a 3300/16 or 3300/20 I/O module, verify that the channel assignment and full-scale range settings in the rack configuration match the replacement probe’s sensitivity curve. If the plant is running a System 1 Evolution or System 1 Optimizer condition monitoring platform, the probe channel database record should be updated to reflect the new serial number and calibration date to maintain audit trail integrity.
For installations that also incorporate a 3300/55 Tachometer Module or a 3300/46M Dual Voting Trip Module, confirm that the speed and phase reference signals remain unaffected by the probe replacement — particularly in configurations where the keyphasor probe and radial probes share a common conduit or junction box. The 330910-00-13-05-02-00 is fully compatible with standard Bently Nevada junction boxes and extension cables, including the 330130 series extension cable, allowing the driver to be located remotely from the machine without signal degradation.
In control cabinets where the 3300 XL rack is integrated with a DCS or safety instrumented system via a 3500/22M Transient Data Interface or a 3500/42M Proximitor I/O Module, the retrofit should include a loop check to confirm that the 4–20 mA or voltage output signals are correctly received at the DCS marshalling panel. Any HMI faceplate displaying vibration trend data should be verified post-commissioning to ensure the engineering unit scaling and alarm setpoints remain consistent with the new probe’s output.
Each unit is supplied with a calibration certificate and is ready for immediate installation. Stock is maintained to support both single-unit emergency replacements and multi-channel planned outage kits.
Downtime Control During System Migration
Minimising unplanned downtime during a proximity probe replacement requires a structured pre-outage preparation protocol. Before isolating the channel, capture a baseline vibration trend snapshot from the System 1 historian or the rack’s front-panel display so that post-installation readings can be compared against the established baseline. This step is critical for confirming that the replacement probe is correctly gapped and that no mechanical change has occurred at the bearing during the outage window.
During the swap, the 3300 XL driver should be placed in bypass mode — if the plant safety logic permits — to prevent a spurious trip from propagating to the turbine or compressor trip relay while the probe circuit is open. Once the 330910-00-13-05-02-00 is installed and the gap is set to the target voltage (typically –18 VDC ± 0.5 VDC), restore the driver to normal monitoring mode and confirm the OK relay is energised before releasing the machine to operations.
For multi-channel outages involving simultaneous replacement of radial and thrust probes across a 3300 XL rack, a channel-by-channel sequential approach is recommended to maintain at least partial vibration coverage throughout the maintenance window. This approach, combined with pre-tested replacement units, typically reduces total outage time to under two hours for a four-channel probe set.
Retrofit Support FAQ
Q: Is the 330910-00-13-05-02-00 a direct replacement for earlier 3300 Series 8mm probes?
A: Yes. The 330910-00-13-05-02-00 is dimensionally and electrically compatible with earlier 3300 Series 8mm proximity probes. The integral cable length, connector type, and sensitivity specification are identical, allowing direct substitution without modifying the driver, extension cable, or mounting bracket.
Q: What gap voltage should I set after installing the replacement probe?
A: The nominal gap voltage for the 330910-00-13-05-02-00 is –18 VDC at a 1.0 mm air gap, measured at the driver output. Adjust the probe position until the driver displays this voltage, then lock the probe in place and re-verify after tightening the locknut. Confirm the OK relay is energised and the gap is within the driver’s configured OK window before returning the channel to service.
Q: Has this unit been tested before shipment?
A: Yes. Every 330910-00-13-05-02-00 unit undergoes pre-shipment functional testing against Bently Nevada gap voltage and sensitivity specifications. A calibration certificate is included with each shipment. Units are covered by a 12-month warranty from the date of delivery.
Q: Can you supply multiple units for a planned outage?
A: Yes. We maintain stock of the 330910-00-13-05-02-00 to support both emergency single-unit replacements and multi-channel planned outage kits. Contact our team with your required quantity and delivery timeline and we will confirm availability and lead time within one business day.
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