Product Core Brief

• Model: 330180-50-00
• Brand: Bently Nevada
• Series: 3300 XL
• Integration Role: Conditions high-frequency eddy current signals for 3500/42M monitoring.
• Product Type: Proximitor Transducer
• Key Specs: 200mV/mil Sensitivity | -24Vdc Input | 8mm Probe Size
• Note: Condition: New Original (New Surplus).

Key Technical Specifications

Product Introduction

The BENTLEY 330180-50-00 is a precision proximitor transducer designed for the 3300 XL 8mm eddy current sensor system. It converts high-frequency probe signals into a buffered DC voltage proportional to the gap between the probe tip and the target shaft.

Integrators select this unit for its 200mV/mil sensitivity and superior EMI rejection, which eliminates the need for shielded conduits in high-noise plants. This BENTLEY 330180-50-00 module ensures signal integrity across a 0-10kHz bandwidth, critical for accurate vibration and displacement monitoring in turbine and compressor applications.

Wiring & Backplane Integration Notes

• Electrical Length Matching: The total system electrical length is non-negotiable. The sum of the probe and extension cable lengths must exactly equal the BENTLEY 330180-50-00 specification. Mismatches cause linear range shifts and calibration errors.
• Grounding Loops: Never ground the shield at both the module and the probe end. Ground only at the transducer side to prevent ground loops, which introduce 60Hz hum into the vibration signal.
• Power Supply Ripple: Verify -24Vdc supply ripple is <100mV peak-to-peak. Excessive ripple modulates the output signal, creating false vibration peaks that mimic mechanical faults.
• Connector Torque: Hand-tighten BNC connectors only. Over-torquing damages the center pin contact, leading to intermittent signal loss during high-vibration events.

Integrator’s FAQ

1. Can I hot-swap the BENTLEY 330180-50-00 without tripping the monitor?
No. This transducer lacks internal hot-swap protection. Removing it under power creates an open circuit, causing the 3500/42M monitor to fault immediately. Always bypass the channel or schedule a maintenance window to prevent nuisance trips.

2. Is this model obsolete, and what is the direct successor?
The BENTLEY 330180-50-00 remains an active, supported standard for 3300 XL 8mm systems. No direct successor is required unless migrating to the 330500 series, which changes the entire signal chain architecture. Verify with the OEM datasheet before upgrading.

3. Will replacing this unit cause configuration or calibration loss?
The transducer itself holds no configuration data; it is a purely analog signal conditioner. However, physical replacement alters the system’s electrical characteristics. You must re-verify the gap voltage and recalibrate the monitor’s zero-point to match the new unit’s specific output curve.

4. How does your 12-month New Surplus warranty compare to refurbished?
Refurbished units often contain aged electrolytic capacitors that fail within months under continuous -24Vdc bias. Our BENTLEY 330180-50-00 inventory is New Original, sealed in anti-static packaging with full inbound traceability. We guarantee zero hours of operation and full factory specs, eliminating the “infant mortality” risk common in used parts.

5. Why is your pricing lower than OEM direct but higher than used?
We source excess factory inventory, not field pulls. Refurbished sellers absorb the cost of testing, cleaning, and replacing failed components, yet still sell aged silicon. Our pricing reflects genuine new surplus economics: no rework costs, no hidden degradation, and a true 12-month warranty. Used parts may seem cheaper upfront but often cost 3x more in unplanned downtime.