Bently Nevada 330104-10-24-50-02-00 3300 XL Replacement

Product Overview

Bently Nevada 330104-10-24-50-02-00 3300 XL 8mm Proximity Transducer: Seamless Replacement & Upgrade Solution

The Bently Nevada 330104-10-24-50-02-00 is an 8mm proximity transducer forming part of the industry-standard 3300 XL Series continuous machinery protection system. As aging distributed control systems and legacy vibration monitoring platforms approach end-of-life, plant engineers and reliability teams increasingly require a verified, drop-in replacement that preserves existing wiring infrastructure, conduit routing, and Keyphasor® signal chains without forcing a full-system overhaul. This listing provides a ready-to-ship, fully tested 330104-10-24-50-02-00 unit backed by a 12-month warranty, sourced to support both emergency breakdown replacements and planned predictive maintenance turnarounds.

The 3300 XL 8mm proximity transducer system operates on the eddy-current principle, delivering a linear output of −7.87 V/mm (−200 mV/mil) with a measurement range of 0.25 mm to 2.25 mm (10 to 90 mil). The standard 5-metre (16.4 ft) extension cable and integral connector are retained in this replacement unit, ensuring direct compatibility with existing 3300 XL Proximitor® Sensor housings such as the 330180 series. Engineers migrating from earlier 3300 NSv or 7200 Series transducer assemblies will find that the 330104-10-24-50-02-00 maintains the same −24 VDC bias voltage supply requirement and TK-3 target material calibration curve, eliminating the need to reconfigure Bently Nevada System 1® or 3500 rack-based monitoring software alarm setpoints.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful 3300 XL transducer replacement rarely involves a single component. During field retrofits and planned shutdowns, reliability engineers typically address the complete signal chain to eliminate latent failure points and ensure system-wide calibration integrity. When replacing the 330104-10-24-50-02-00 probe, the associated 330180-51-05 Proximitor® Sensor should be inspected and replaced if it shows drift or housing corrosion — the two units are factory-matched for the TK-3 calibration curve and must be treated as a system pair.

Extension cable assemblies such as the 330130-080-00-00 (8-metre armoured extension) are frequently replaced alongside the probe during turnarounds, particularly in high-vibration or high-temperature environments where cable jacket degradation accelerates. For installations migrating from a legacy 3300 NSv rack to a modern Bently Nevada 3500 Series monitoring rack, the 3500/42M Proximitor®/Seismic Monitor module provides the correct input card to accept the 330104 signal without signal conditioning adapters.

Plants running System 1® Evolution software for condition monitoring will find that the 330104-10-24-50-02-00 integrates without driver changes, as the software’s transducer database already includes the 3300 XL 8mm sensitivity curve. Where Keyphasor® phase reference signals are part of the monitoring architecture, the 330980-50-05 Keyphasor® transducer assembly should be verified for gap voltage consistency after the probe swap to maintain accurate phase angle readings across the 3500/25 Keyphasor® module.

For control cabinet installations where DIN-rail mounted signal isolators or Bently Nevada TDXnet™ interface modules are used to bridge the proximity transducer output to a third-party DCS — such as a Honeywell Experion PKS, Emerson DeltaV, or ABB 800xA platform — no signal scaling changes are required, as the −200 mV/mil output is a universally recognised standard in rotating machinery protection. Facilities using Allen-Bradley ControlLogix or Siemens S7-400 PLCs as secondary data acquisition nodes can continue to use existing 4–20 mA transducer interface cards without modification.

Where physical space in the machinery skid is constrained, the compact form factor of the 330104-10-24-50-02-00 — identical to its predecessor — means no bracket re-machining or conduit re-routing is required. This is particularly valuable during short maintenance windows on critical rotating assets such as steam turbines, compressors, and pumps where minimising time-on-tools is a primary objective.

Retrofit Guidance FAQ

Q: Can I replace the 330104-10-24-50-02-00 without recalibrating the 3500 rack?
A: Yes. The 330104-10-24-50-02-00 uses the same TK-3 calibration curve and −200 mV/mil sensitivity as the original unit. Provided the replacement Proximitor® Sensor (330180 series) is also within specification, no rack recalibration or alarm setpoint adjustment is required in System 1® or the 3500 rack configuration software.

Q: Is the wiring connector plug-and-play with existing field cabling?
A: Yes. The 2-pin MIL-C-5015 style connector on the 330104-10-24-50-02-00 is identical to the outgoing unit. No re-termination of the extension cable is required. Verify that the extension cable jacket is free of cuts or abrasion before reconnecting.

Q: What gap voltage should I set after installation?
A: For AISI 4140 steel targets, the recommended gap is 1.0 mm (40 mil), yielding a bias voltage of approximately −10.4 VDC at the Proximitor® output. Adjust the probe gap using a non-metallic feeler gauge with the machine at rest and the −24 VDC supply energised.

Q: Can this transducer be used with a 3300 NSv Proximitor® housing?
A: The 3300 XL probe is not directly interchangeable with 3300 NSv Proximitor® housings due to differences in the internal calibration resistor network. If your existing Proximitor® is a 3300 NSv unit, it must be replaced with a 330180-series 3300 XL Proximitor® Sensor to maintain calibration accuracy.

Q: Is the unit compatible with high-temperature environments?
A: The 330104-10-24-50-02-00 is rated for probe tip temperatures up to 177°C (350°F). For applications exceeding this range, consult the 3300 XL High-Temperature variant specifications. Extension cable temperature ratings should also be verified against the installation environment.

Q: How do I verify the unit is functioning correctly after installation?
A: With the machine stationary and the −24 VDC supply active, measure the Proximitor® output voltage. At the recommended 1.0 mm gap, the output should read −10.4 VDC ±0.5 VDC. A reading outside this range indicates an incorrect gap, a wiring fault, or a Proximitor® issue — not a transducer defect.

Warranty Assurance

Every 330104-10-24-50-02-00 unit shipped by TOPNLMS is covered by a 12-month warranty from the date of delivery. Prior to dispatch, each unit undergoes a multi-point outgoing inspection that includes visual examination of the probe tip, cable jacket, and connector pins; electrical continuity verification; and bias voltage output testing against the TK-3 calibration curve. Units that do not meet specification are quarantined and not shipped.

In the event of a confirmed defect within the warranty period, TOPNLMS will arrange a replacement unit at no additional cost. Our technical support team is available to assist with installation queries, gap-setting guidance, and compatibility verification before and after purchase. We understand that rotating machinery protection is a safety-critical application — our warranty and support commitments reflect that priority.

Typical order processing time is 1–3 business days from payment confirmation, with express air freight options available for emergency breakdown situations. Stock availability is confirmed at the time of order. For large-quantity procurement, scheduled delivery, or consignment stock arrangements, please contact our sales team directly.