Bently Nevada 330854-080-25-05 3300 XL 25 mm Extension Cable

Description

330854-080-25-05: 3300 XL 25 mm extension cable, Option 080 (8.0 m cable length), Option 25 (Armored High Temperature FluidLoc cable), Option 05 Multiple Approvals agency package. This cable is used to connect a 330851 25 mm proximity probe to a 330850 Proximitor Sensor, forming an integral part of the Bently Nevada 3300 XL 25 mm proximity transducer system.

This specific configuration differs from standard unarmored alternatives by employing a flexible AISI 302 stainless steel armor sleeve with a protective PFA outer jacket. This construction shields the core 75-ohm triaxial FluidLoc cable from extreme mechanical environments, physical abrasion, and liquid ingress while preventing moisture or fluid migration into critical connector boundaries. The integrated gold-plated ClickLoc coaxial connections ensure signal impedance is perfectly preserved over the entire path, preventing frequency roll-off and calibration drift in demanding steam turbine differential expansion (DE) and thrust position monitoring applications.

Features

• Option 080 specifies an 8.0-metre (26.2 feet) total cable length, matched to specific probe and sensor calibration curves.
• Option 25 features flexible AISI 302 stainless steel armor with a PFA outer jacket for high-durability routing.
• Option 05 Multiple Approvals provides wide-ranging hazardous area certification compliance (CSA, ATEX, IECEx).
• PFA insulated coaxial core resists temperatures up to 200 degC for high-pressure casing and steam paths.
• Gold-plated brass and beryllium copper ClickLoc connectors provide low-resistance, secure electrical coupling.
• FluidLoc cable design prevents fluid transmission along the inner cable layers.

Applications

• Differential expansion (DE) measurements on medium to large steam turbine generators.
• Rotor axial position and thrust deflection monitoring.
• Rod-drop style displacement measurements on industrial compressors.
• Harsh chemical, oil-splash, and abrasive physical environments requiring high physical cable integrity.

Ordering Information

Technical Specifications

Connections and Interfaces

The cable incorporates industrial ClickLoc coaxial terminations designed to lock and prevent signal loss under vibration:

Installation Guidelines

• Ensure that the 330854 extension cable length combined with the 330851 probe length precisely matches the calibrated system length configured on the 330850 Proximitor Sensor (e.g. 1.0 m probe plus 8.0 m extension cable for a 9.0 m system).
• Maintain a minimum bend radius of 25.4 mm (1.0 in) along the entire route, especially where the cable transitions out of protective conduit or junctions.
• Apply a Bently Nevada connector protector kit over ClickLoc connections located in areas of high moisture, humidity, oil mist, or ambient steam to prevent junction degradation.
• Secure the armored cable within appropriate conduit or trays to prevent damage from adjacent machinery movement or heavy impact.

Compliance and Certifications

• Option 05 Multiple Approvals package covers hazardous area locations worldwide.
• ATEX/IECEx: Intrinsically Safe Ex ia IIC T4/T5 Ga; Non-sparking Ex nA IIC T4/T5 Gc; Ex ec IIC T4/T5 Gc.
• CSA/CNRTLUS: Class I, Groups A, B, C, D; Class II, Groups E, F, G; Class III (Divisions 1 & 2).
• CE Mark: Complies with relevant EU directives for industrial electromagnetic immunity.
• RoHS: Fully compliant with directive standards.