Bently Nevada 330730-040-01-05 3300 XL 11 mm Extension Cable

Description

330730-040-01-05 specifies this 3300 XL 11 mm extension cable configuration, featuring a 4.0 meter cable length, protective stainless steel armor, and a multiple agency approvals package. This cable is used within the 3300 XL 11 mm Proximity Transducer System, connecting the 3300 XL 11 mm proximity probe to the 3300 XL 11 mm Proximitor sensor for non-contact shaft vibration, axial position, and differential expansion monitoring.

Compared to standard non-armored models like the 330730-040-00-05, this configuration incorporates flexible AISI 302 stainless steel armor with an outer FEP jacket to withstand mechanical abrasion, physical impact, and harsh industrial environments. While unarmored configurations are lighter and more flexible for clean environments, the armored jacket is essential in open industrial installations where cables are routed near sharp edges or high-traffic areas.

Features

• 4.0 meter cable length (Option 040) designed to combine with a 1.0 meter probe to achieve a 5.0 meter total system length.
• AISI 302 stainless steel armor (Option 01) with an outer FEP jacket for mechanical protection against abrasion and physical impacts.
• Gold-plated brass coaxial connectors providing secure, low-loss electrical contact.
• Multiple agency approvals (Option 05) supporting cNRTLus, ATEX, and IECEx certifications for hazardous area installations.
• Triaxial 75 ohm cable construction with fluoroethylene propylene (FEP) insulation.
• 25.4 mm (1.0 in) minimum bend radius allowing flexible routing in tight conduits and enclosures.

Applications

Typical application environments include rotating machinery protection in heavy industries such as oil and gas, power generation, petrochemicals, and water treatment:

• Steam and gas turbine shaft vibration and axial thrust position monitoring.
• Centrifugal compressor rotor position and casing differential expansion measurements.
• Reciprocating compressor rod drop and rod position tracking.
• Hydroelectric generator shaft runout and zero-speed monitoring.
• Balance of plant rotating machinery protection in hazardous area environments.

Ordering Information

Technical Specifications

Connections and Interfaces

Installation Guidelines

• Keep the minimum bend radius of the armored cable to 25.4 mm (1.0 in) or greater during routing to prevent core damage.
• Hand-tighten coaxial connectors to ensure proper electrical mating; do not exceed the maximum torque limit of 0.565 N-m (5 in-lb).
• Protect the connector junction using connector protectors or self-fusing silicone tape to prevent oil, moisture, and dust ingress.
• Do not use silicone tape in environments where the cable connection will be directly exposed to turbine oil.
• Ensure that the sum of the extension cable length and the probe length matches the total length rated on the Proximitor sensor (e.g., 4.0 m cable + 1.0 m probe equals a 5.0 m system).

Compliance and Certifications

• EMC Directive 2014/30/EU, Standards EN 61000-6-2 (Immunity), EN 61000-6-4 (Emissions)
• RoHS Directive 2011/65/EU with China RoHS EFUP designation of 15 years
• Functional Safety: SIL 2 (HFT=0), SIL 3 (HFT=1) certified when used in a complete safety-instrumented system
• Hazardous Area Approvals (Option 05):
  • cNRTLus (Intrinsically Safe): Class I, Zone 0: AEx/Ex ia IIC T5...T1 Ga; Class I, Groups A, B, C, D; Class II, Groups E, F, G; Class III
  • cNRTLus (Non-incendive): Class I, Zone 2: AEx/Ex nA IIC T5...T1 Gc; Class I, Division 2, Groups A, B, C, D
  • ATEX/IECEx: Ex ia IIC T5...T1 Ga (EPL Ga), Ex ia IIIC T90C...T280C Dc (EPL Dc), Ex nA/ec IIC T5...T1 Gc (EPL Gc)