Bently Nevada 330103-00-22-50-02-CN 3300 XL Transducer

Overview

Bently Nevada 330103-00-22-50-02-CN 3300 XL Migration-Ready Proximity Transducer for Legacy Control Systems

The Bently Nevada 330103-00-22-50-02-CN is a 22mm proximity transducer engineered for the 3300 XL series vibration monitoring platform. As legacy rotating machinery protection systems approach end-of-life, this transducer serves as a direct migration-ready replacement for discontinued 3300 series field sensors, enabling facilities to extend the operational life of their existing monitoring infrastructure without requiring a full system overhaul. Whether you are replacing a failed sensor on a critical compressor train, upgrading a turbine protection panel, or consolidating spare parts inventory ahead of a planned shutdown, the 330103-00-22-50-02-CN delivers verified compatibility with the 3300 XL rack-mounted monitoring system.

This transducer operates on the standard Bently Nevada eddy-current sensing principle, producing a linear voltage output proportional to the gap between the probe tip and the observed shaft surface. The -CN suffix designates the connector type and cable termination configuration, which must be confirmed against the existing field wiring before installation. Engineers undertaking a retrofit should verify the extension cable length — typically paired with a 330130 or 330180 series extension cable — and confirm that the overall system sensitivity (mV/mil or mV/mm) matches the existing 3300 XL monitor card calibration. Mismatched sensitivity settings between the transducer, extension cable, and proximitor/driver will result in incorrect gap voltage readings and may trigger false alarms or missed trips.

Migration Compatibility Table

Retrofit Planning for Existing Automation Systems

A successful retrofit of the 330103-00-22-50-02-CN into an existing machinery protection system requires a structured pre-installation review. Begin by auditing the full transducer chain: the probe itself, the mating extension cable (such as a 330130-045-00-00 or 330180-series cable), and the proximitor driver module (such as a 3300 XL 8mm or 3300 XL 11mm proximitor). Each component in the chain must share the same sensitivity specification — typically 7.87 V/mm or 200 mV/mil — to ensure the 3300 XL monitor card receives a correctly scaled signal. If the existing extension cable is damaged or its sensitivity is unknown, it should be replaced simultaneously with the probe to avoid introducing a calibration error that is difficult to diagnose after reassembly.

For facilities running a 3500 series rack alongside legacy 3300 XL panels, the 330103-00-22-50-02-CN remains compatible with 3500/42M and 3500/45 position monitor modules when used with the appropriate proximitor, making it a versatile spare that bridges both generations of Bently Nevada monitoring hardware. Engineers should also confirm the I/O terminal block wiring at the 3300 XL rack backplane — specifically the OK relay output and the direct vibration output terminals — to ensure the replacement probe does not require re-termination of the field cable at the rack end.

Where the retrofit is part of a broader control cabinet upgrade, consider the power budget of the existing 3300 XL power supply module. Adding replacement probes to a partially loaded rack is generally straightforward, but if the cabinet is being expanded with additional 3300 XL monitor cards or a new 3300 XL keyphasor module, the total current draw must be recalculated against the power supply rating. In parallel, if the facility is migrating HMI screens from an older System 1 Optimization and Diagnostic Software installation to a newer platform, the channel tag assignments and alarm setpoints associated with this transducer position should be exported and re-imported to preserve the historical baseline data and avoid reconfiguring trip multiplier settings from scratch.

Downtime Control During System Migration

Minimizing unplanned downtime during a proximity transducer replacement requires preparation that begins well before the maintenance window opens. The 330103-00-22-50-02-CN should be bench-tested prior to installation using a calibrated gap simulator or a reference target material (typically AISI 4140 steel) to confirm the output voltage at the nominal gap — usually 1.0 mm or 40 mil — falls within the 3300 XL monitor card’s acceptance range. This pre-installation verification eliminates the risk of discovering a faulty replacement unit after the machine has been taken offline.

During the replacement, the existing probe gap setting should be recorded before removal so the new transducer can be set to the same initial gap, reducing the time required for final gap adjustment at the bearing housing. The 3300 XL monitor card should be placed in bypass mode — using the front-panel bypass switch or the System 1 software bypass command — to prevent a spurious trip signal from propagating to the machine control system while the probe is disconnected. Once the new 330103-00-22-50-02-CN is installed and the gap is set, the bypass should be released only after the OK LED on the monitor card has illuminated and the direct vibration output has been confirmed stable at the expected quiescent voltage.

For facilities with redundant monitoring channels, the replacement can often be performed on one channel while the parallel channel remains active, allowing the machine to continue operating under reduced protection coverage rather than requiring a full shutdown. This approach is particularly effective on critical compressor and turbine trains where the cost of an unplanned outage significantly exceeds the cost of the replacement hardware. All field adjustments, gap measurements, and bypass events should be logged in the site maintenance management system to support future audits and to establish a documented calibration record for the replacement transducer. Every unit shipped from our inventory undergoes functional output verification before dispatch, and is covered by a support terms confirmed by quotation from the date of shipment.

Retrofit Support FAQ

Q: Is the 330103-00-22-50-02-CN a direct replacement for my existing 330103 series probe?
A: Yes. The 330103-00-22-50-02-CN is a direct drop-in replacement for other 330103 series variants in most 3300 XL installations. The key variables to confirm are the connector suffix (-02-CN) and the integral cable length (50 cm). If your existing installation uses a different connector or cable length variant, the extension cable and junction box termination should be reviewed before installation to ensure a clean fit without field modification.

Q: What commissioning steps are required after installing the replacement transducer?
A: After mechanical installation, set the probe gap to the manufacturer-specified nominal value (typically 1.0 mm / 40 mil from the shaft surface), then verify the DC gap voltage at the 3300 XL monitor card input terminals. Confirm the OK relay is energized and the direct vibration output is within the expected quiescent range. If the monitor card displays an alert or danger condition immediately after bypass release, recheck the gap setting and confirm the extension cable sensitivity matches the probe specification before adjusting alarm setpoints.

Q: Can I use this transducer with a Bently Nevada 3500 series rack?
A: The 330103-00-22-50-02-CN is primarily specified for the 3300 XL platform. Compatibility with 3500 series monitor cards depends on the specific module type and the proximitor driver used. In many cases, when paired with the correct 3300 XL proximitor, the transducer signal is accepted by 3500/42M and 3500/45 position monitors. We recommend confirming the full transducer chain specification with your instrumentation engineer before cross-platform installation.

Q: What is your stock availability and support terms policy?
A: We maintain ready inventory of the 330103-00-22-50-02-CN to support urgent replacement and planned maintenance schedules. Each unit is functionally tested before shipment and is covered by a support terms confirmed by quotation from the date of delivery. For volume orders or scheduled maintenance programs requiring guaranteed stock reservation, please contact our sales team directly to discuss lead times and supply agreements.

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Product Identification

Brand / Ecosystem

Bently Nevada
Bently Nevada

Model / Series

330103-00-22-50-02-CN
Bently Nevada 3300 XL / 3301 Series

Product Family

PLCs & Controllers

Availability Status

Available on request after model and quantity confirmation

Inquiry Type

B2B RFQ, replacement inquiry and project spare-part request

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Exact SKU, brand, series, quantity, nameplate photos and destination country are checked before quotation

Specification & Inquiry Focus

Control platform

PLC, PAC and modular controllers

Common needs

CPU, rack, power and I/O expansion

Project support

Replacement, cabinet build and maintenance

Inquiry Support

• Model cross-checking before quotation
• CPU, power, rack and expansion module matching
• Support for replacement and project inquiry

What to Send Us

• Brand and exact model number: Bently Nevada 330103-00-22-50-02-CN
• Quantity and required delivery time
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