Bently Nevada 330130-085-03-05 3300 XL Extension Cable

Product Overview

Bently Nevada 330130-085-03-05 is an armored extension cable from the 3300 XL 8 mm Proximity Transducer System. It connects a compatible proximity probe to its Proximitor Sensor. The cable maintains signal transmission between these components in rotating machinery monitoring applications.

This configuration provides an 8.5-meter (27.9-foot) cable length, armored construction, and a connector protector. Its mechanical protection supports installations that require additional cable protection around industrial machinery.

The 3300 XL extension cable supports shaft displacement measurement in compressors, turbines, pumps, and other rotating equipment. Its electrical characteristics help maintain signal integrity within a correctly configured transducer system.

The 3300 XL design incorporates several connection improvements. Its patented TipLoc molding method strengthens the probe tip-to-body connection. The CableLoc design provides 330 N (75 lbf) pull strength between the probe cable and probe tip.

Technical Specifications

Parameter	Specification
Manufacturer	Bently Nevada
Model	330130-085-03-05
Product Series	3300 XL
Product Type	Proximity Probe Extension Cable
Compatible System	3300 XL 8 mm Proximity Transducer System
Cable Length	8.5 m (27.9 ft)
Cable Configuration	Armored cable
Connector Protection	Connector protector
Approval Option	05 – CSA, ATEX, IECEx
Country of Manufacture	USA
Typical Armored Cable Weight	103 g/m (1.5 oz/ft)
Total Armored Cable Weight	Approximately 0.875 kg
Typical Unarmored Cable Weight	34 g/m (0.4 oz/ft)
Unarmored Cable Weight	Approximately 0.289 kg
Extension Cable Capacitance	69.9 pF/m (21.3 pF/ft), typical
Center Conductor Resistance	1.87 ± 0.28 Ω
Outer Conductor Resistance	0.56 ± 0.11 Ω
Output Resistance	50 Ω
CableLoc Pull Strength	330 N (75 lbf), probe cable-to-tip connection

Electrical Performance and Measurement Characteristics

The following electrical parameters describe the compatible 3300 XL 8 mm transducer system. They do not represent independent extension cable output specifications.

Performance Parameter	Specification
System Supply Voltage	-17.5 to -26 Vdc
Supply Voltage with Barriers	-23 to -26 Vdc
Maximum Current Consumption	12 mA
Voltage Sensitivity	Less than 2 mV output change per 1 V input change
System Linear Range	2 mm (80 mils)
Linear Operating Region	Approximately 0.25–2.3 mm (10–90 mils)
Corresponding Output Range	Approximately -1 to -17 Vdc
Standard Test Gap	1.27 mm (50 mils)
Frequency Response	Depends on the complete transducer configuration and field wiring
Resolution	No separate numerical value specified
Linearity Accuracy	System linearity percentage not specified in the supplied data
Operating Temperature	Confirm against the applicable cable and system documentation
Reference Test Temperature	+18°C to +27°C (+64°F to +80°F)
Maximum Reference Test Altitude	2,000 m

Important Electrical Considerations:

• The system requires a negative DC power supply within the specified voltage range.
• Barrier installations require -23 to -26 Vdc.
• Supply voltages more positive than -23.5 Vdc can reduce the available linear range.
• The system specifies a 50 Ω output resistance.
• The extension cable contributes 69.9 pF/m typical capacitance to the complete signal path.
• Frequency response depends on cable configuration and total field wiring length.

DC Resistance and Cable Characteristics

The 8.5-meter extension cable has defined resistance values for both conductors. These values help technicians evaluate cable continuity and electrical condition.

Measurement Item	Resistance
Center Conductor to Center Conductor (RCORE)	1.87 ± 0.28 Ω
Outer Conductor to Outer Conductor (RJACKET)	0.56 ± 0.11 Ω

Measure both conductor paths during cable inspection. Compare actual readings with the specified resistance ranges. Unexpected resistance changes may indicate connection problems or cable damage.

Environmental Resistance and Signal Protection

The 3300 XL extension cable supports industrial machinery monitoring installations. Its armored construction provides additional mechanical protection around the cable.

• Mechanical Protection: The armored construction helps protect the cable against external mechanical contact.
• Connector Protection: The specified connector protector helps protect the probe-to-cable connection.
• Humidity Performance: The complete system exhibits less than 3% Average Scale Factor change after 56 days at 93% relative humidity.
• Humidity Test Standard: IEC 68-2-3.
• Signal Integrity: Correct cable selection and routing help maintain the electrical characteristics of the transducer system.
• Oil Exposure: Avoid relying on silicone tape at probe-to-extension connections exposed to turbine oil.

Environmental Qualification Note: The humidity result describes the specified transducer system test. It does not establish an independent IP rating or universal chemical compatibility.

Installation Guidelines

Correct cable selection and installation directly affect proximity measurement performance. Follow these engineering recommendations during installation.

1. Verify Cable Identification: Confirm model 330130-085-03-05 before connecting the assembly.
2. Check Cable Length: Confirm the 8.5-meter extension length matches the system configuration.
3. Inspect the Armor: Check for crushing, sharp bends, or visible mechanical damage.
4. Inspect the Connectors: Examine the connector protector and electrical contact surfaces.
5. Connect the Probe: Match the extension cable connector with the compatible 3300 XL 8 mm probe.
6. Connect the Proximitor: Verify the opposite connection against the Proximitor Sensor requirements.
7. Secure the Cable Route: Avoid excessive tension, sharp edges, and unnecessary mechanical stress.
8. Verify Total System Length: Add the probe length and extension cable length. Confirm that their combined length matches the Proximitor Sensor configuration.
9. Complete Electrical Testing: Check conductor continuity and resistance before commissioning.

Critical Configuration Rule: The combined probe and extension cable length must equal the specified Proximitor Sensor total length. An incorrect combination can cause measurement errors or prevent proper system operation.

Field Wiring and Commissioning

Wiring Parameter	Requirement
Conductor Size	0.2–1.5 mm² (16–24 AWG)
Recommended Field Cable	Three-conductor shielded triad cable
Field Wiring Material	Tinned field wiring recommended
Maximum Field Wiring Length	305 m (1,000 ft)
Signal Destination	3300 XL Proximitor Sensor to machinery monitor

The 305-meter limit applies to field wiring between the Proximitor Sensor and monitor. It does not replace the specified 8.5-meter extension cable length.

During commissioning, technicians should perform these checks:

• Confirm the probe and extension cable form the correct system combination.
• Measure center conductor resistance and outer conductor resistance.
• Check connector engagement and cable continuity.
• Verify the Proximitor Sensor supply voltage.
• Confirm stable output signals at the monitoring system.
• Review signal behavior across the required machinery operating range.

Compatibility and System Integration

The 330130-085-03-05 belongs to the Bently Nevada 3300 XL 8 mm system. Engineers should verify all connected components before installation.

• Probe Compatibility: Use a compatible 3300 XL 8 mm proximity probe.
• Proximitor Compatibility: Verify the corresponding 3300 XL Proximitor Sensor configuration.
• Extension Cable Length: Include the 8.5-meter cable when calculating total system length.
• Connector Configuration: Confirm the connector protector and mating connector arrangement.
• Monitor Compatibility: Check the complete transducer system against the machinery monitor requirements.
• Target Material: Published system accuracy and interchangeability specifications use an AISI 4140 steel target.

The published system accuracy specifications do not automatically apply to alternative target materials. Confirm calibration requirements when the installation uses a different shaft material.

Certification and Approval Information

The ordering code identifies Approval Option 05. This configuration specifies the following approval standards:

• CSA
• ATEX
• IECEx

Verify the product nameplate and applicable approval documents before hazardous-area installation. Confirm the certificate scope, equipment group, temperature class, and installation requirements. Do not assume every installation configuration shares identical approval conditions.

Maintenance and Troubleshooting

Regular inspection helps maintain stable electrical connections and reliable machinery monitoring signals.

• High Conductor Resistance: Inspect connector contacts, cable continuity, and possible conductor damage.
• Unstable Measurement Signals: Check connector engagement, cable routing, grounding, and shielding.
• Intermittent Signal Loss: Inspect the cable for mechanical damage and loose connections.
• Incorrect System Calibration: Verify the combined probe and extension cable length.
• Abnormal High-Frequency Response: Review field wiring length and system frequency response.
• Connector Contamination: Inspect contact surfaces and replace damaged connection components.
• Oil Exposure: Inspect the probe-to-extension connection and avoid silicone tape where turbine oil exposure occurs.

Record the initial resistance measurements during commissioning. Maintain these readings as reference values for future inspections. Compare subsequent results to identify cable deterioration or connection changes.

Global PLC Spare HUB's Insight

Extension cable selection requires more than matching the nominal cable length. Engineers must also consider armor construction, connector protection, approval requirements, and total transducer system length.

For turbine and compressor installations, the armored configuration offers an additional mechanical protection layer. The connector protector also provides a defined connection protection arrangement. However, engineers should assess the actual installation environment before selecting protective accessories.

One frequent configuration issue involves the combined probe and extension cable length. The total must match the Proximitor Sensor configuration. A cable with the correct individual length may still create an incompatible system when paired with the wrong probe.

Another important consideration involves turbine oil exposure. Bently Nevada includes silicone tape with 3300 XL extension cables as an alternative to connector protectors. However, silicone tape is not recommended where turbine oil can contact the probe-to-extension cable connection.

For maintenance teams, recording conductor resistance provides a useful diagnostic reference. Compare the center conductor and outer conductor measurements during periodic inspections. This practice helps identify electrical changes before they affect machinery monitoring performance.

Model Selection and Technical Comparison

Engineers may also consider the following alternative when selecting a 3300 XL extension cable.

Selection Criteria	330130-085-03-05	330130-085-11-05
Manufacturer	Bently Nevada	Bently Nevada
Product Series	3300 XL	3300 XL
Cable Length	8.5 m	8.5 m, based on model code
Configuration	Armored cable	Confirm against product documentation
Connector Arrangement	Connector protector	Verify suffix configuration
Approval Option	05 – CSA, ATEX, IECEx	05 – CSA, ATEX, IECEx
Selection Priority	Additional mechanical cable protection	Confirm cable construction and connector requirements
Product Reference	Current product	330130-085-11-05 Bently Nevada Extension Cable

Technical Selection Recommendations:

• Choose 330130-085-03-05 when the installation requires an armored extension cable and connector protector.
• Consider 330130-085-11-05 when evaluating the alternative shielded cable configuration. Confirm its detailed construction and connector arrangement before ordering.
• For hazardous-area installations: Verify the required CSA, ATEX, and IECEx documentation for the exact product configuration.
• For replacement projects: Match the existing cable length, probe interface, Proximitor Sensor, and approval requirements.
• For system upgrades: Check the complete transducer chain rather than comparing cable model numbers alone.

Our Recommendation: Select the 330130-085-03-05 when armored construction and connector protection match the installation requirements. Consider the alternative only after confirming its exact suffix definition and mechanical configuration. Do not assume that two cables with identical lengths have interchangeable connector or armor arrangements.

Packaging and Shipping Information

• 1 × Bently Nevada 330130-085-03-05 Armored Extension Cable.
• Specified connector protector configuration.
• Silicone tape supplied with the 3300 XL extension cable as an alternative connection protection material.
• Standard product packaging for transportation protection.

Confirm the final accessory contents against the sales quotation. Proximity probes, Proximitor Sensors, and additional field wiring are not included unless specifically listed.

Global PLC Spare HUB supports industrial automation spare-part sourcing. We provide a 12-month warranty and arrange shipments through FedEx, UPS, and DHL. Contact our sales team for current availability, pricing, and shipping arrangements. Typical dispatch arrangements are 24–48 hours, subject to stock and order confirmation.

Frequently Asked Questions (FAQ)

Q1: What is the primary function of the Bently Nevada 330130-085-03-05?

This cable connects a compatible 3300 XL 8 mm proximity probe to its Proximitor Sensor. It carries the measurement signal through the configured transducer system.

Q2: What does the 085 suffix represent?

The 085 cable length option specifies 8.5 meters (27.9 feet). This length must match the total system configuration requirements.

Q3: What is the difference between armored and unarmored extension cables?

Armored cables provide additional mechanical protection around the cable. Unarmored cables offer a lighter construction. Choose according to cable routing, installation exposure, and mechanical protection requirements.

Q4: Can technicians use silicone tape instead of the connector protector?

Yes. Each 3300 XL extension cable includes silicone tape as an alternative. However, Bently Nevada does not recommend this approach where turbine oil can expose the probe-to-extension connection.

Q5: How should technicians verify extension cable resistance?

Measure the center conductor and outer conductor separately. For the 8.5-meter cable, compare the readings with 1.87 ± 0.28 Ω and 0.56 ± 0.11 Ω, respectively.

Q6: Can this extension cable connect directly to a machinery monitor?

No. The cable connects the proximity probe and Proximitor Sensor. The Proximitor Sensor provides the interface to the machinery monitoring system.

Q7: Why must engineers calculate the combined probe and extension cable length?

The combined length must match the Proximitor Sensor total length. Incorrect length combinations can affect system compatibility and measurement performance. Always verify the complete configuration before installation.

Q8: What should maintenance engineers check when vibration readings become unstable?

First, inspect both cable connections and the armored section. Then measure conductor resistance and check cable routing. Finally, verify the Proximitor Sensor supply and complete signal chain.

Q9: How should buyers choose between 330130-085-03-05 and 330130-085-11-05?

Start with the existing cable construction and connector arrangement. The 330130-085-03-05 specifies armored construction with a connector protector. For the 330130-085-11-05, confirm its exact suffix configuration and mechanical details before substitution.

Q10: What information should buyers provide when requesting a quotation?

Provide the complete model number, required quantity, existing probe model, Proximitor Sensor model, and cable length. Include connector photographs and hazardous-area approval requirements when available.

Request a Quote for Bently Nevada 330130-085-03-05

Looking for a Bently Nevada 3300 XL Armored Extension Cable? Contact Global PLC Spare HUB for pricing, availability, and technical selection assistance.

Send us your complete model number and system configuration. Our team can help verify cable specifications and replacement compatibility before ordering.

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