330104-00-03-05-11-00 Bently Nevada 3300 XL 8 mm Proximity Transducer System

Product Description

Configured for non-contact shaft displacement and radial vibration acquisition in the 3300 XL monitoring network, the Bently Nevada 330104-00-03-05-11-00 (330104 proximity probe assembly) provides direct electrical execution of eddy-current gap transduction to the downstream Proximitor and TSI rack.

Hardware Specifications

Eddy-Current Probe Scaling and Gap Voltage Validation

The 330104 probe operates on eddy-current damping where the Proximitor sensor drives an RF carrier and demodulates tip impedance into a linear DC gap voltage. At a 50 mil (1.27 mm) installed target distance against a 4140 steel rotor surface, the steady-state gap voltage settles at -10 VDC ±1 VDC when the Proximitor is powered from -24 VDC. Sensitivity is fixed at 200 mV/mil; therefore a 10 mil peak-to-peak shaft orbit produces 2 V peak-to-peak AC superimposed on the DC bias. Cross-talk suppression between adjacent 3300 XL channels is achieved by maintaining a minimum probe centerline spacing of 25 mm and separating extension cables by at least 50 mm from power conductors carrying >50 VAC or transient drive signals. Rotor dynamics data remains valid only when the probe face is square to the shaft within 2 degrees and the target surface finish is 32 microinch RMS or finer.

Frequently Asked Questions

Q: Can the 330104-00-03-05-11-00 probe be mixed with a different-length 3300 XL extension cable and still meet API 670 linearity?

A: No. API 670 linearity and temperature stability are validated only for matched 3300 XL 8 mm probe + extension cable + Proximitor sets. Bently Nevada guarantees interchangeability inside the same 5 m system length group; combining a 3 m probe with a 7 m extension cable breaks the calibrated pair and forces re-bench verification.

Q: What is the hot-swap behavior of this probe under live machine rotation?

A: The probe body is not hot-swappable. The Proximitor sensor on the 3500 rack may be replaced online, but disconnecting the miniature coaxial connector while the machine turns will collapse gap voltage to open-circuit and latch a transient alarm until reinitialization.

Q: Does the 4-20 mA output exist on the probe itself?

A: No. The probe outputs a -1 VDC to -17 VDC gap signal. The 4-20 mA loop is generated by the 3500/22M transient data interface or an external 3300 to 4-20 mA isolator card, not by the 330104 assembly.

Field Installation Guidelines

Mount the probe using the supplied locknut and jam nut against a machined boss; torque the locknut to 3.4 N·m and the jam nut to 5.6 N·m. Set the initial gap with a non-magnetic feeler gauge at 50 mils, then verify -10 VDC at the Proximitor test point before closing the conduit. Route the miniature coaxial extension cable in a separate tray from VFD output conductors; if cross-run is unavoidable, maintain 300 mm separation and use grounded continuous conduit. Ground the cable shield drain wire only at the Proximitor end to avoid ground loops. After final shaft alignment, record the cold gap voltage and the hot gap voltage at rated RPM; the delta must stay inside 1 VDC to confirm thermal stability.

SEO Title: 330104-00-03-05-11-00 Bently Nevada 3300 XL Datasheet & Technical Manual

Meta Description: 330104-00-03-05-11-00 Bently Nevada Brand New Original Stock Global Shipping. 8 mm eddy-current probe, 5 m system, API 670 compliant.

Other Attributes

• Series: 3300 System
• Country of Origin: USA
• Lead Time: In Stock, 2 Working Days

In Stock Hot Items of The 3500 System

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