Bently Nevada 330104-00-13-10-02-00 Migration-Ready Proximity Probe

Overview

Bently Nevada 330104-00-13-10-02-00: Migration-Ready Proximity Probe for Legacy Control Systems

The Bently Nevada 330104-00-13-10-02-00 is an 8mm eddy-current proximity probe engineered for the 3300 XL Series vibration monitoring platform. As legacy rotating machinery protection systems approach end-of-support cycles, this probe serves as a verified drop-in replacement for discontinued 3300 Series field sensors, enabling maintenance teams to restore continuous shaft vibration and position monitoring without rewriting existing monitor configurations or recalibrating the full measurement chain. Whether you are executing a planned outage retrofit, responding to an unplanned sensor failure, or building a long-term spare parts inventory for critical turbomachinery, the 330104-00-13-10-02-00 provides a traceable, tested, and immediately deployable solution.

This probe is compatible with the Bently Nevada 3300 XL 8mm Proximity Transducer System, which includes the 330180 extension cable and the 330130 proximitor/oscillator. When replacing a failed or end-of-life probe in an existing installation, engineers must verify the total system scale factor — typically 200 mV/mil (7.87 V/mm) — remains consistent across the probe, extension cable, and proximitor combination. Mismatched cable lengths or proximitor models from earlier 3300 non-XL generations can introduce scale factor deviations that trigger false alarms or mask real vibration events. Confirming the installed proximitor firmware version and gap voltage setpoints before hot-swap is a mandatory pre-commissioning step.

Migration Compatibility Table

Retrofit Planning for Existing Automation Systems

A successful retrofit of the 330104-00-13-10-02-00 into an operating turbomachinery protection system requires a structured pre-outage audit. Begin by documenting the existing probe mounting bracket geometry, thread specification, and radial gap to the target shaft. In many legacy installations, the probe is paired with a 330180 extension cable routed through conduit to a junction box, then onward to the 330130 proximitor mounted inside the control cabinet. If the extension cable shows insulation degradation or connector corrosion, replacing it concurrently with the probe eliminates a second unplanned outage.

Inside the control cabinet, the 330130 proximitor feeds its analog output to a 3500/40M Proximitor/Seismic Monitor or a legacy 3300 XL monitor card. Before disconnecting field wiring, record the existing gap voltage, OK relay state, and any active alarm or danger setpoints stored in the monitor. If the site uses a Bently Nevada 3500 rack system, the 3500/20 Power Supply Module must be confirmed to supply adequate −24 VDC current for the number of proximitor channels in the rack — adding a replacement probe channel without checking the power budget can cause intermittent OK relay dropouts across adjacent channels.

For plants migrating from older 3300 non-XL hardware to the 3300 XL platform, the probe replacement is often the first step in a phased upgrade that also includes swapping the proximitor to the 330130 model and updating the monitor card to accept the revised scale factor. In parallel, HMI screens built on GE iFIX, Wonderware, or Emerson DeltaV that display vibration trend data must be reviewed to confirm the engineering unit scaling matches the new system output. Keyphasor® signal routing — typically provided by a 330980 Keyphasor Module — should also be verified to ensure phase reference data remains valid after the probe swap.

Where I/O expansion is part of the broader upgrade, integrating additional 3500/42M Velocity/Acceleration Monitor cards or 3500/45 Position Monitor cards into the existing 3500 rack can be planned concurrently, reducing total installation labor. Signal isolators may be required at the interface between the Bently Nevada analog outputs and third-party DCS or safety PLC inputs to prevent ground loop interference that can corrupt vibration readings.

Downtime Control During System Migration

Minimizing unplanned downtime during a proximity probe replacement begins with pre-staging all replacement components — probe, extension cable, and proximitor if required — and completing a bench-level continuity and insulation resistance check before the outage window opens. Having the 330104-00-13-10-02-00 pre-gapped to the nominal 50 mil setpoint using a calibrated gap tool reduces on-machine adjustment time significantly.

During the swap, the existing monitor configuration — including alarm setpoints, danger setpoints, time delays, and OK relay logic — should be exported from the 3500 rack using System 1 software or the rack’s front-panel interface before any wiring is disturbed. This configuration backup protects against accidental parameter loss if the monitor card is power-cycled during the probe installation. Once the new probe is installed and the gap voltage is confirmed within the OK band, the monitor can be returned to normal operation without requiring a full system restart, preserving control continuity on adjacent channels.

For sites where continuous operation is mandatory, a temporary bypass relay on the OK output — coordinated with the site safety authority — allows the protection system to remain in a monitored-but-bypassed state during the brief gap adjustment period. All bypass actions must be logged and cleared before the machine is returned to full-speed operation. Post-installation, a 30-minute trend capture in System 1 or the site historian confirms the new probe is tracking shaft vibration within expected baseline parameters before the outage is formally closed.

Retrofit Support FAQ

Q1: Is the 330104-00-13-10-02-00 a direct replacement for older 3300 Series (non-XL) proximity probes?
The 330104-00-13-10-02-00 is designed for the 3300 XL 8mm system. It can replace older 3300 Series probes physically, but the complete transducer system — probe, extension cable, and proximitor — must all be XL-series components to maintain the correct 200 mV/mil scale factor. Mixing XL and non-XL components will produce scale factor errors. Confirm the installed proximitor model (330130 for XL) before ordering.

Q2: What commissioning checks are required after installation?
After installation, verify: (1) gap voltage at −10 VDC ±0.5 VDC at the nominal 50 mil gap; (2) OK relay energized with no fault indication on the monitor; (3) scale factor confirmed via a known-displacement check or system documentation; (4) alarm and danger setpoints restored from the pre-outage configuration backup; (5) Keyphasor® phase reference valid if phase measurements are used. Document all readings in the site maintenance log.

Q3: Can this probe be used with a Bently Nevada 3500 rack system?
Yes. The 330104-00-13-10-02-00 is compatible with 3500/40M Proximitor/Seismic Monitor cards when used with the 330130 proximitor. Ensure the 3500/20 Power Supply Module has sufficient current headroom for the additional channel. No firmware changes are required on the monitor card for a like-for-like probe replacement.

Q4: What is the support terms coverage and stock availability?
All units ship with a support terms confirmed by quotation covering manufacturing defects from the date of shipment. Each probe undergoes output voltage and insulation resistance testing prior to dispatch. Stock is maintained for immediate shipment; lead time for in-stock units is typically 1–3 business days. Contact admin@knmks.com or +86 18359268345 for volume pricing and availability confirmation.

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Bently Nevada
Bently Nevada

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330104-00-13-10-02-00
3500 Series

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Sensors

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