Bently Nevada 102044-00-48-10-05 Replacement for 3300 XL

Product Overview

Bently Nevada 102044-00-48-10-05 Replacement for 3300 XL: Smooth Migration from Legacy Vibration Monitoring Systems

The Bently Nevada 102044-00-48-10-05 is an 8mm eddy current proximity probe engineered for the 3300 XL Series vibration monitoring platform — one of the most widely deployed machinery protection systems in rotating equipment applications worldwide. As original equipment ages or reaches end-of-life, procurement teams and reliability engineers face increasing pressure to source verified replacement units that maintain full signal chain compatibility without requiring costly system-wide overhauls. This listing addresses that need directly: a tested, ready-to-ship replacement probe that integrates into your existing 3300 XL architecture with no firmware changes, no re-cabling, and no recalibration of the signal conditioner chain.

The 102044-00-48-10-05 operates within the standard Bently Nevada eddy current transducer system, which consists of three interdependent components: the proximity probe itself, the extension cable (typically a 330130-080-00-00 or equivalent 8-meter armored type), and the Proximitor® sensor (such as the 3300 XL 8mm Proximitor, part number 330180-X1-CN). When replacing only the probe tip, it is critical that the replacement unit matches the original probe’s sensitivity factor (nominally 7.87 V/mm or 200 mV/mil), gap voltage range, and cable impedance characteristics. This unit meets all three criteria, making it a true drop-in replacement for field installations where the extension cable and Proximitor remain serviceable.

Many facilities running legacy GE Bently Nevada 3300 Series (pre-XL) systems have already migrated their Proximitor sensors to the 3300 XL platform to take advantage of improved noise immunity and expanded diagnostic outputs. In those hybrid installations, the 102044-00-48-10-05 probe is fully compatible, provided the extension cable is retained or replaced with a matched-length unit. Mismatched cable lengths alter the system’s resonant frequency and can introduce measurement error; always verify total cable system length when swapping probe assemblies in the field.

For plants operating Bently Nevada 3500 Series rack-based machinery protection systems alongside 3300 XL field devices, the probe signal is typically routed through a 3500/42M Proximitor/Seismic Monitor or a 3500/40M Proximitor Monitor card. These monitor cards accept the standard ±24 VDC Proximitor output and are not affected by a probe-level replacement, provided the Proximitor sensor itself remains unchanged. If your site is also upgrading the Proximitor from a 3300 XL 5mm unit to the 8mm variant to accommodate shaft diameter changes, note that the 3500 rack monitor cards require a corresponding channel configuration update via the Rack Configuration Software (RCS).

In turbomachinery and compressor train applications, the 102044-00-48-10-05 is commonly installed in pairs for X-Y radial vibration measurement, with a third probe used for axial position (thrust) monitoring. Companion probes in these configurations often include the 330103-00-08-10-02-00 (5mm, 2-meter) for tighter bearing housing geometries, or the 330104-00-08-10-02-00 for applications requiring a longer rigid probe tip. When replacing one probe in a matched pair, it is best practice to replace both simultaneously to ensure consistent sensitivity factors across the X and Y channels — a mismatch of more than ±2% between channels can trigger false alarms on the 3500 monitor card’s differential vibration logic.

Power supply compatibility is straightforward: the 3300 XL Proximitor sensor requires a regulated −24 VDC supply, typically sourced from a Bently Nevada 3300/20 Power Supply module or an equivalent DIN-rail mounted unit within the control cabinet. No changes to the power distribution architecture are required when replacing the probe. If your installation uses a 3300/05 or 3300/10 power supply in an older sub-rack, verify that the supply’s current capacity accommodates the full channel count before adding replacement probes to a partially populated rack.

Communication and data integration: the 3300 XL system outputs a 4–20 mA analog signal and a relay contact for each monitored parameter. These signals interface directly with DCS platforms such as Emerson DeltaV, Honeywell Experion PKS, or ABB System 800xA via standard analog input cards. No protocol conversion is required. For sites that have upgraded their DCS to OPC UA or HART-enabled I/O, the Bently Nevada 3500 rack’s System 1 Evolution software provides the digital integration layer — a probe-level replacement does not affect this architecture.

Installation space and mechanical fit: the 102044-00-48-10-05 uses a standard M10 × 1.0 thread with a 25mm hex body, consistent with all 8mm 3300 XL probes. Existing probe holders, armored conduit fittings, and junction box entries do not require modification. The probe tip length and body geometry are identical to the original, ensuring correct gap setting (typically 1.0–1.5 mm from the shaft surface) can be achieved using the same feeler gauge procedure documented in Bently Nevada’s installation manual TDI-8436.

Compatibility Comparison Table

Seamless Upgrade Solutions

A complete 3300 XL probe replacement or system migration typically involves more than the probe tip alone. During field retrofits, engineers commonly source the following components alongside the 102044-00-48-10-05 to complete the signal chain:

The Bently Nevada 330180-X1-CN 3300 XL 8mm Proximitor Sensor is the matched signal conditioner and should be replaced as a set if the existing unit shows drift or calibration deviation. The 330130-080-00-00 Extension Cable (8-meter armored) connects the probe to the Proximitor and must match the probe’s cable system length specification — a common source of field errors when mixing legacy and replacement components.

For rack-based installations, the Bently Nevada 3500/42M Proximitor/Seismic Monitor card processes the conditioned signal and provides relay outputs to the plant DCS. If the site is also upgrading from a 3300 sub-rack to a 3500 full rack, the 3500/20 Rack Interface Module (RIM) and 3500/15 Power Supply are standard additions to the bill of materials. Plants migrating from older 3300/05 power supplies will find the 3500/15 a direct functional upgrade with improved redundancy options.

In control cabinet builds or panel retrofits, DIN-rail terminal blocks are frequently used to land the Proximitor’s 4–20 mA output before routing to the DCS analog input card. A signal isolator may be added in hazardous area installations to provide galvanic isolation between the field device and the control room. For commissioning and gap-setting verification, a Bently Nevada 3300 XL System Calibrator or a precision millivolt source is recommended to confirm the probe’s output voltage at the nominal gap before the machine is returned to service. Sites upgrading from the older Bently Nevada 330500 Velomitor seismic sensor to eddy current proximity measurement will also need to update the monitor card channel type configuration in RCS to reflect the change from velocity to displacement measurement.

Retrofit Guidance FAQ

Q: Can I replace only the probe without replacing the extension cable and Proximitor?
A: Yes, provided the extension cable is undamaged and the Proximitor is within calibration. The probe, cable, and Proximitor form a tuned system — replacing only the probe is acceptable if the other two components are verified serviceable. Always confirm the total cable system length matches the replacement probe’s specification.

Q: Do I need to reconfigure the 3500 monitor card after replacing the probe?
A: No. A like-for-like probe replacement (same sensitivity, same diameter, same cable length) does not require any changes to the 3500 rack configuration. If you are changing probe diameter (e.g., from 5mm to 8mm) or cable length, a configuration update via Rack Configuration Software (RCS) is required.

Q: Is this probe compatible with the older Bently Nevada 3300 (non-XL) Proximitor?
A: The 102044-00-48-10-05 is designed for the 3300 XL platform. While the physical connector and thread are similar to some legacy 3300 probes, signal chain compatibility with non-XL Proximitors should be verified against Bently Nevada’s system compatibility matrix before installation.

Q: What is the correct gap voltage for commissioning?
A: With a −24 VDC supply and the 3300 XL 8mm Proximitor, the nominal gap voltage at 1.0 mm is approximately −10.0 VDC, and at 1.5 mm is approximately −12.0 VDC. Refer to Bently Nevada TDI-8436 for the full gap/voltage curve.

Q: Can this probe be used in hazardous (Ex) areas?
A: Consult the probe’s certification documentation. For ATEX or IECEx-rated installations, verify that the replacement unit carries the appropriate Ex ia or Ex d certification before installation in Zone 1 or Zone 2 areas.

Q: What is the lead time and shipping origin?
A: Units are stocked in Xiamen, China, and ship within 1–3 business days of order confirmation. International express delivery (DHL/FedEx) typically reaches most destinations within 3–7 business days. Expedited options are available — contact us for urgent requirements.

Q: What wiring changes are needed when migrating from a 3300 sub-rack to a 3500 full rack?
A: The Proximitor output wiring (4–20 mA and relay) terminates at the 3500/42M or 3500/40M monitor card’s field terminal block. Terminal assignments differ between the 3300 and 3500 racks; refer to the 3500 Field Wiring Diagram (document 141556-01) for the correct pin mapping. No changes to the probe or extension cable wiring are required.

Warranty Assurance

Every Bently Nevada 102044-00-48-10-05 replacement 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 sensitivity check, insulation resistance test, and connector integrity inspection. Units that fail any test criterion are quarantined and not shipped.

In the event of a warranty claim, TOPNLMS provides a replacement unit or full refund within the warranty period, subject to inspection of the returned item. Our after-sales response target is 24 hours for initial acknowledgment and 72 hours for resolution proposal. We maintain buffer stock of high-demand 3300 XL series components specifically to support rapid warranty replacements without extended lead times.

For procurement teams requiring documentation, we can provide a test report, packing list, and commercial invoice with HS code declaration (HS 9031.80) upon request. All units are shipped in anti-static packaging with individual serial tracking. Bulk orders (5+ units) qualify for priority allocation and dedicated account support.

To place an order, request a quotation, or discuss system-level migration requirements, contact our technical sales team directly.