Product Specification Document: Bently Nevada 1X35668

1. Product Overview

2. Basic Product Information

Manufacturer and Model Identity

• Manufacturer: Bently Nevada, a Baker Hughes company

• Model Number: 1X35668 (also referenced as 68135045)

• Product Series: 3300 XL NSv Proximity Transducer System

• Product Type: Precision Proximity Probe Extension Cable

• System Compatibility: 3300 NSv proximity probes, 3300 XL NSv proximitor sensors, 3300/3500 series monitoring systems

• Country of Origin: United States

• Main Components: PTFE-insulated signal conductors, stainless steel braided shielding, nickel-plated brass connectors, protective outer jacket, strain relief glands

Electrical Characteristics

• Signal Type: Eddy-current proximity probe signal (high-frequency AC)

• Conductor Insulation: PTFE (Teflon), low dielectric loss, high temperature resistance

• Shielding: 316 stainless steel braid, 100% coverage, EMI/RFI suppression

• Connector Impedance: Matched to 3300 XL NSv system (50 Ω nominal)

• Voltage Rating: 35 VDC maximum (sensor circuit)

• Frequency Bandwidth: DC to 10 kHz, supports high-frequency vibration measurement

• Signal Loss: ≤0.5 dB at 10 kHz (3 m length)

• Isolation: Complete electrical isolation between conductors and shield to eliminate ground loops

Physical and Mechanical

• Cable Length: Standard 3 meters (custom lengths available)

• Outer Jacket: Flame-retardant, oil-resistant PVC; optional PTFE for extreme temperatures

• Diameter: 6 mm (nominal)

• Connectors: Nickel-plated brass, threaded coupling, self-aligning; 2-wire termination

• Weight: 0.36 kg (3 m length)

• Bend Radius: Minimum 50 mm (static), 100 mm (dynamic)

• Ingress Protection: IP67 (connectors), IP65 (cable jacket)

• Material Durability: 316 stainless steel shield, corrosion-resistant for coastal/offshore use

Environmental Limits

• Operating Temperature: -40 °C to +125 °C (-40 °F to +257 °F)

• Storage Temperature: -50 °C to +150 °C (-58 °F to +302 °F)

• Relative Humidity: 0%–95% RH, non-condensing

• Vibration Resistance: 10 g continuous (10 Hz–1 kHz)

• Shock Resistance: 20 g transient mechanical shock

• Chemical Resistance: Resists oils, greases, hydrocarbons, and mild acids/alkalis

Compliance and Certification

• Applicable Standards: API 670, ISO 10816, IEC 61000-6-2, IEC 61000-6-4

• Certifications: CE, cULus, ATEX Zone 2, RoHS, ABS marine certification

• Hazardous Area Rating: Class I Division 2 / Zone 2, Temperature Class T4

• Quality Control: ISO 9001 manufacturing; 100% electrical and mechanical testing prior to shipment

• Lifecycle Status: Active production; full support for new installations, retrofits, and replacements

3. Function and Product Positioning

Core Functions

• Precision Signal Transmission: Transmits high-frequency eddy-current signals (0–10 kHz) from probes to proximitors with minimal loss, ensuring accurate displacement/vibration measurements

• EMI/RFI Protection: Stainless steel braided shielding blocks electromagnetic interference from motors, drives, and power lines, preventing signal distortion

• Environmental Protection: Sealed connectors and rugged jacket resist moisture, dust, oil, and extreme temperatures, enabling use in harsh industrial locations

• Mechanical Strain Relief: Integrated glands and reinforced ends prevent cable fatigue from vibration, bending, or pulling, extending service life

• System Compatibility: Fully interoperable with 3300 XL NSv probes and proximitors, maintaining system calibration and measurement accuracy

Operational Features

• Plug-and-Play Installation: Threaded connectors enable quick, tool-free connection to probes and proximitors

• Length Flexibility: Standard 3 m length; custom lengths up to 10 m available for complex machinery layouts

• Maintenance-Free Design: No moving parts; requires only visual inspection for damage or wear

• Calibration Stability: Does not require recalibration after installation; maintains system accuracy over time

• Hot-Swap Capability: Can be replaced during system operation without shutting down machinery

Product Positioning

4. Core Performance Parameters

Electrical Performance

• Frequency Response: DC to 10 kHz (±0.1 dB flatness)

• Characteristic Impedance: 50 Ω ±2 Ω

• Insulation Resistance: ≥100 MΩ at 500 VDC

• Shield Resistance: ≤0.5 Ω (3 m length)

• Signal Attenuation: ≤0.5 dB at 10 kHz

Mechanical Performance

• Tensile Strength: ≥500 N (cable); ≥1000 N (connectors)

• Bend Cycle Life: ≥10,000 cycles (100 mm bend radius)

• Connector Durability: ≥500 mating cycles

• Vibration Endurance: 10 g @ 10 Hz–1 kHz, 1000 hours

Reliability

• MTBF: >200,000 hours (25 °C, standard conditions)

• Warranty: 1-year standard factory warranty; extended options available

• Service Life: 10+ years under normal operating conditions

5. General Matching Accessories

Compatible System Components

• 3300 NSv proximity probes (5 mm/8 mm diameter)

• 3300 XL NSv proximitor sensors

• 3300/3500 series monitoring racks and modules

Installation Accessories

• Stainless steel cable clamps and mounting brackets

• Protective metal conduit for cable routing

• Connector dust caps (for unused ports)

• Spare O-rings and sealing gaskets

Maintenance and Spares

• 1X35668 extension cable (replacement)

• Connector repair kit (pins, sleeves, gaskets)

• Cable cutters and crimping tools (for custom lengths)

• Factory calibration certificate and test reports

Supporting Documentation

• 3300 XL NSv system datasheet

• 1X35668 installation and maintenance manual

• API 670 application guide for proximity transducer systems

• Bently Nevada 3300/3500 system integration manual

6. Applicable Equipment and Industry Fields

Primary Applications

• Power Generation: Steam/gas turbines, generators, boiler feed pumps, induced draft fans

• Oil and Gas: Centrifugal compressors, offshore platform pumps, refinery blowers, pipeline compressors

• Petrochemical: Process compressors, reactor agitators, cooling tower fans, gearboxes

Secondary Applications

• Industrial Manufacturing: Large motors, machine tools, printing presses, textile machinery

• Water/Wastewater: High-pressure pumps, aeration blowers, sludge dewatering equipment

• Marine/Offshore: Vessel propulsion systems, cargo pumps, ventilation fans, offshore platform machinery

Compatibility Notes

• System Matching: Must be used with 3300 XL NSv probes and proximitors; not compatible with older non-XL 3300 systems

• Length Limitations: Maximum recommended length is 10 m to avoid excessive signal attenuation

• Routing Guidelines: Avoid routing near high-voltage cables or variable-frequency drives to minimize EMI

• Hazardous Areas: Use certified cable glands and conduits in Class I Division 1 locations