Bently Nevada 330703-000-050-10-02-05 3300 XL 11 mm Proximity Probe

Description

330703-000-050-10-02-05 specifies a metric M14 x 1.5 threaded 3300 XL 11 mm proximity probe with 0 mm of unthreaded length, a 50 mm overall case length, a 1.0-meter total system length, standard coaxial cabling, and multiple global hazardous area agency approvals. This unarmored metric probe operates within the 3300 XL 11 mm Proximity Transducer System, measuring non-contact shaft vibration and axial position on high-speed rotating machinery.

Compared to its armored counterparts or English-threaded configurations, this specific model utilizes standard 75-ohm triaxial cabling without flexible SST armor and is suited for installations inside protective conduits or where mechanical shielding is already provided.

Features

• Metric thread design: Features an M14 x 1.5 thread without flexible stainless steel protective armor.
• Fully threaded case: Configured with 0 mm unthreaded length and a compact 50 mm overall case length.
• Standard triaxial cable: Supplied with a 1.0-meter (3.3 feet) standard FEP-insulated coaxial cable and standard Miniature ClickLoc connector without a connector protector.
• Multiple hazardous area approvals: Certified for intrinsically safe and non-incendive installations under ATEX, IECEx, and North American standard agencies.
• Robust construction: Utilizes a high-strength Polyphenylene Sulfide (PPS) tip and AISI 304 stainless steel probe case.

Applications

This proximity probe is used in a wide range of critical industrial monitoring applications, including:

• Steam and gas turbine shaft vibration and axial displacement monitoring.
• Compressor and pump rotor position tracking inside industrial machinery trains.
• Hydroelectric generator shaft deflection and thermal expansion monitoring.
• Rotating machinery protection under API 670 standards.

Ordering Information

Technical Specifications

Installation Guidelines

To ensure proper mechanical and electrical performance, adhere to the following engineering guidelines during installation:

• Cable Routing: Maintain a minimum bend radius of 25.4 mm (1.0 in) for standard probe cables. Avoid sharp kinks or routing near high-voltage lines.
• Torque Limits: Do not exceed the maximum rated installation torque of 63.3 N-m (560 in-lb) for the M14 x 1.5 thread case. The recommended installation torque is 21.1 N-m (187 in-lb).
• Proximity Gap Adjustment: Adjust probe gap to 2.5 mm (100 mils) nominal mechanical displacement, corresponding to -10 Vdc output voltage at the Proximitor sensor under standard conditions.
• Connector Tightness: Connectors must be tightened finger-tight. Maximum torque must not exceed 0.565 N-m (5 in-lb).

Compliance and Certifications

The 3300 XL proximity transducer system is designed to meet rigorous global standards when configured with option 05 approvals:

• ATEX/IECEx: Certified intrinsically safe Ex ia IIC T5...T1 Ga and Ex ia IIIC T90C...T280C Dc for hazardous environments. Non-sparking Ex nA IIC T5...T1 Gc and increased safety Ex ec IIC T5...T1 Gc options are also supported.
• North American Approvals (CSA): Class I, Zone 0: AEx/Ex ia IIC T4/T5 Ga; Class I, Groups A, B, C, D; Class II, Groups E, F, G; Class III.
• EMC Directive: Complies with Directive 2014/30/EU standards including EN 61000-6-2 (Immunity) and EN 61000-6-4 (Emissions).
• RoHS Directive: Complies with European Directive 2011/65/EU and meets China RoHS requirements with an EFUP rating of 15 years.
• Functional Safety: Certified SIL 2 capable (HFT=0) and SIL 3 capable (HFT=1) when implemented as part of an appropriate safety-instrumented system.