Bently Nevada 330103-00-17-50-02-CN Spare 3300 XL

Overview

Bently Nevada 330103-00-17-50-02-CN Spare 3300 XL: Maintenance-Proven Proximity Transducer for Factory Uptime

The Bently Nevada 330103-00-17-50-02-CN is an 8mm eddy current proximity transducer engineered for the 3300 XL continuous machinery monitoring system. Designed for permanent installation in rotating machinery protection circuits, this probe delivers reliable non-contact vibration and position measurement in turbines, compressors, pumps, and gearboxes operating in demanding industrial environments. Sourced as an original spare part, it is tested before shipment and backed by a support terms confirmed by quotation, making it a dependable choice for maintenance engineers managing critical asset uptime and procurement engineers building resilient spare parts inventories.

Whether you are responding to an unplanned shutdown, executing a scheduled annual overhaul, or replenishing your control room spare parts cabinet, the 330103-00-17-50-02-CN provides a direct, compatible replacement that restores your 3300 XL monitoring loop without requiring reconfiguration or recalibration of the monitor module. Its 5-metre integral cable with CN connector matches the original factory specification, ensuring signal integrity from probe tip to the 3300 XL monitor rack.

Spare Maintenance Table

Maintenance Planning for Continuous Operation

When a 3300 XL proximity transducer loop shows erratic vibration readings, a high-gap alarm, or a probe fault indication on the monitor front panel, the root cause is rarely limited to the probe alone. A thorough fault isolation procedure should begin at the probe tip and work systematically back through the measurement chain. After confirming that the 330103-00-17-50-02-CN probe itself is the failed component, maintenance engineers should also inspect the 3300 XL Proximitor Sensor (330180 series) for housing cracks, connector corrosion, or internal oscillator drift — the proximitor converts the probe’s eddy current signal into the –24 VDC proportional output read by the monitor module, and a degraded proximitor will cause the replacement probe to perform below specification.

The extension cable connecting the probe to the proximitor is a frequent source of intermittent faults in high-vibration environments. Inspect the coaxial cable jacket for chafing, the CN connectors for fretting corrosion, and the cable routing clamps for looseness. A damaged extension cable will introduce noise into the signal path and can cause nuisance trips even with a new probe installed. Similarly, the 3300 XL monitor module power supply rail should be verified at ±24 VDC ±5% before declaring the probe circuit healthy — an out-of-tolerance supply voltage shifts the probe’s linear measurement range and invalidates the calibration gap set during installation.

For plants running Bently Nevada System 1 condition monitoring software, confirm that the channel configuration in the software matches the replacement probe’s sensitivity constant (–200 mV/mil) and that the OK limit thresholds are correctly set for the new probe’s gap voltage. If the machine train also uses 3300 XL keyphasor modules for phase reference, verify that the keyphasor probe and its extension cable are in good condition, as a degraded keyphasor signal will affect all dynamic measurements on that machine train. Procurement engineers building annual maintenance kits for turbomachinery trains should consider stocking the 330103-00-17-50-02-CN alongside the matching proximitor, a spare extension cable set, and the relevant 3300 XL I/O terminal board to cover the most common failure modes in a single purchase order, reducing emergency procurement lead times and protecting against unplanned production losses.

During control cabinet inspections, check the 3300 XL rack power supply module for capacitor bulging or output ripple, and verify that all monitor module edge connectors are fully seated. Loose rack connections are a known cause of intermittent channel faults that are misdiagnosed as probe failures. If the installation is in a hazardous area, confirm that the associated safety barrier or galvanic isolator in the intrinsically safe circuit is within its calibration interval and that its terminal connections are torqued to specification.

Site Replacement Workflow

Step 1 — Permit and isolation: Obtain a work permit and confirm the machine is in a safe state for probe replacement. For online replacement on non-critical machines, bypass the monitor channel in System 1 or inhibit the trip output before disconnecting the probe.

Step 2 — Record the original gap voltage: Before removing the old probe, record the gap voltage displayed on the 3300 XL monitor or in System 1. This value (typically –10 V ±0.5 V for a correctly gapped 8mm probe) is your reference for setting the replacement probe.

Step 3 — Remove the old probe: Disconnect the extension cable CN connector at the probe end. Unscrew the probe from the bracket using the correct spanner on the probe body flats — never grip the cable. Note the number of turns removed so the replacement can be pre-positioned close to the correct gap.

Step 4 — Install the 330103-00-17-50-02-CN: Thread the new probe into the bracket by hand until the tip is approximately 1.0 mm from the shaft surface. Connect the extension cable and power the proximitor. Monitor the gap voltage on the 3300 XL display and adjust the probe axial position until the gap voltage matches the recorded reference value. Lock the probe with the jam nut to the torque specified in the Bently Nevada installation drawing.

Step 5 — Verify and restore: Confirm the OK LED on the monitor module is illuminated, the gap voltage is stable, and the vibration reading is within the expected baseline range for the machine at its current operating condition. Remove the channel bypass or trip inhibit, restore the work permit, and update the maintenance management system with the replacement date, new probe serial number, and final gap voltage.

This workflow applies equally to scheduled replacements during annual overhauls and to emergency replacements during unplanned shutdowns, minimising the time the machine train is offline and ensuring the monitoring system is returned to a fully functional state before the machine is restarted.

Spare Parts Support FAQ

Q1: Is the 330103-00-17-50-02-CN a direct drop-in replacement for older 330103 series probes?
Yes. The 330103-00-17-50-02-CN is dimensionally and electrically compatible with other 330103 series 8mm probes used in 3300 XL systems. The –17-50-02-CN suffix denotes the 5-metre cable length and CN connector configuration. If your existing installation uses a different cable length suffix, verify the extension cable length is adjusted accordingly to maintain the correct total cable length for the proximitor’s calibration range.

Q2: How do you verify the probe is genuine and has been tested before shipment?
Every 330103-00-17-50-02-CN unit shipped by KNMKS undergoes pre-shipment electrical testing covering DC resistance, insulation resistance, and sensitivity verification against the Bently Nevada specification. A test report is available on request. Units are shipped in anti-static packaging with tamper-evident seals. If you require a certificate of conformance or third-party inspection, please contact [email protected] before placing your order.

Q3: What is the recommended spare parts stocking strategy for 3300 XL proximity transducer systems?
For critical rotating machinery (turbines, compressors, large pumps), maintenance best practice is to hold a minimum of one spare probe per monitored shaft position, plus one spare proximitor per machine train, in the plant warehouse. For plants with more than ten 3300 XL channels, a consignment stock arrangement with KNMKS can reduce per-unit cost and guarantee next-day availability. Annual consumption forecasting based on your CMMS replacement history is the most reliable basis for setting reorder points.

Q4: What does the support terms confirmed by quotation cover, and what is the process for a support terms claim?
The support terms confirmed by quotation cover manufacturing defects, premature electrical failure under normal operating conditions, and any deviation from the published Bently Nevada specification confirmed by return inspection. It does not cover damage caused by incorrect installation, mechanical impact, chemical contamination, or operation outside the rated temperature range. To initiate a support terms claim, contact [email protected] with the order number, installation date, and a description of the failure mode. KNMKS will arrange return shipping and provide a replacement unit or documented resolution support within 10 business days of receiving the returned item.

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Product Identification

Brand / Ecosystem

Bently Nevada
Bently Nevada

Model / Series

330103-00-17-50-02-CN
Bently Nevada 3300 XL / 3301 Series

Product Family

Sensors

Availability Status

Available on request after model and quantity confirmation

Inquiry Type

B2B RFQ, replacement inquiry and project spare-part request

Pre-Quote Check

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

Specification & Inquiry Focus

Sensor range

Photoelectric, proximity and process sensors

Common needs

Output type, distance and connector

Project support

Machine detection and replacement inquiry

Inquiry Support

• NPN/PNP, analog and digital output checking
• Connector and cable compatibility review
• Fast inquiry support for maintenance teams

What to Send Us

• Brand and exact model number: Bently Nevada 330103-00-17-50-02-CN
• Quantity and required delivery time
• Application, replacement requirement or nameplate photo
• Destination country and shipping preference