330130-045-01-05 Bently Nevada 3300 XL Proximity Extension Cable

330130-045-01-05 Technical Product Overview

The Bently Nevada 330130-045-01-05 is a high-accuracy coaxial transmission element designed for the 3300 XL 8 mm Proximity Transducer System. This cable establishes the critical, impedance-matched link between an 8 mm eddy current probe and a remote Proximitor Sensor. Engineered to maintain tight tuning parameters, the 330130-045-01-05 ensures precise transmission of high-frequency RF signals representing physical machine displacements.

With a factory-calibrated length of 4.5 meters, this variant features integrated mechanical armoring to isolate the inner dielectric layer from severe crushing, pulling, and environmental degradation. It operates reliably within a 2 mm (80 mils) linear range, making it an essential hardware component for machinery protection loops in hazardous areas.

Global PLC Spare HUB's Insight

The Bently Nevada 330130-045-01-05 is standard hardware for high-vibration rotating assets. Bently Nevada's upgraded design utilizes patented CableLoc technology, delivering a massive 330 N (75 lbf) pull strength that prevents separation at the probe head during high-velocity air or fluid turbulence. For maintenance teams operating in petrochemical plants or power blocks, the factory-installed armor on this model eliminates the need for field-run flexible conduit, significantly speeding up sensor turnaround times.

Configuration Breakdown

Technical Specifications Matrix

• Brand: Bently Nevada
• Model Number: 330130-045-01-05
• Series Platform: 3300 XL 8 mm Transducer System
• System Linear Range: 2 mm (80 mils), spanning 0.25 mm to 2.3 mm from target
• Standard Target Material: Calibrated to AISI 4140 steel as factory default
• Nominal Core Resistance (RCORE): 0.99 ± 0.15 Ohms (Center-to-Center)
• Nominal Shield Resistance (RJACKET): 0.30 ± 0.06 Ohms (Outer-to-Outer)
• Cable Capacitance Profile: 69.9 pF/m (21.3 pF/ft) typical value
• Physical Mass (Armored): 103 g/m (1.5 oz/ft) nominal weight
• System Output Impedance: 50 Ohms
• Power Requirements: -17.5 Vdc to -26 Vdc nominal operating input
• Humidity Resilience: Less than 3% Average Scale Factor (ASF) variance over 56 days per IEC 68-2-3

Target Equipment and System Compatibility

• Bently Nevada 3300 XL 8 mm eddy current proximity probes
• Bently Nevada 3300 XL Proximitor Sensors (-24 Vdc powered variants)
• 3500/42M Proximitor/Seismic vibration monitor systems
• Intrinsically safe loops utilizing zener barriers or galvanic isolators

Hardware Comparison and Selection Guidance

When configuring proximity probe loops, total physical length matching is vital. Review the comparison below to ensure correct hardware matching for your machine enclosure:

• 330130-045-01-05 (Current Model): Provides a compact 4.5-meter (14.8 ft) physical length equipped with heavy-duty metal armoring. It is ideal for direct machine casing mounts where the local junction box sits in close proximity to the sensor port.
• Alternative Model: For longer physical runs across larger turbine frames or bearing housings that do not require external armor protection, please utilize the 330130-060-00-05 variant, which features an unarmored 6.0-meter (19.7 ft) layout.

Technical Selection Suggestion: Always check the total system length requirement of your Proximitor Sensor (typically 5.0 meters or 9.0 meters total). Combining a 0.5-meter probe with this 4.5-meter cable forms a mathematically matched 5.0-meter system. Mixing different lengths shifts the system's baseline capacitance, which corrupts the scale factor and voids accuracy guarantees.

Advanced Circuit Protection and Diagnostics

• Stable core-to-jacket capacitance enables the matching Proximitor to continuously monitor circuit integrity without signal attenuation.
• High-integrity insulation prevents signal errors caused by high-humidity environments (+93% relative humidity).
• The mechanical design handles input voltage shifts, maintaining a low supply sensitivity of under 2 mV output variance per volt change.
• The high-integrity outer jacket blocks accidental grounding paths along the cable run, preventing false vibration spikes.

Industrial Application Scenarios

• Measuring dynamic radial shaft vibration on high-speed boiler feed pumps.
• Tracking axial rotor thrust position on critical steam turbine generation sets.
• Monitoring oil-film bearing clearances on large industrial turbo-compressors.
• Providing continuous casing displacement metrics on gas turbines deployed in hazardous processing zones.

Logistics, Delivery, and Warranty Provisions

• Inventory Status: In Stock and ready for immediate system deployment
• Warranty Duration: Full 12-Month comprehensive industrial warranty coverage
• Order Fulfillment: Secure dispatch finalized within 24 to 48 hours of order confirmation
• Global Express Shipping: Priority transit managed via FedEx, UPS, and DHL

Frequently Asked Questions

Why does Bently Nevada explicitly warn against using silicone tape near turbine oil lines?

Turbine lubrication oils contain chemical compounds that can break down the adhesive backing of standard silicone tapes over time. This degradation can lead to moisture ingress at the connection point; for these locations, use a rigid mechanical connector protector instead.

What happens to the proximity loop's linear range if the supply voltage becomes more positive than -23.5 Vdc with barriers?

Operating at a more positive voltage restricts the Proximitor's internal amplifier headroom. This reduction limits the linear range of the output, meaning the monitor may fail to accurately track high-amplitude shaft vibrations or large physical shifts.

How does the patented TipLoc and CableLoc design minimize field installation failures?

The TipLoc design provides a robust physical bond between the probe tip and case, while CableLoc ensures a high 330 N pull strength. This prevents field technicians from pulling the internal wire out of the probe head during tight conduit installation runs.

Can this extension cable be deployed in systems that use target materials other than AISI 4140 steel?

Yes, but the system must be recalibrated. The factory scale factor is specifically tuned to the magnetic properties of AISI 4140 steel; using a different target material without recalibration will introduce measuring errors.

What field wiring gauge and length limitations should engineers enforce for inter-cabinet runs?

Field wiring should utilize a 3-conductor shielded triad cable between 16 and 24 AWG, with a maximum length limit of 305 meters (1,000 feet). Exceeding this distance can cause high-frequency signal rolloff, as shown in the system's frequency response documentation.

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