330703-000-026-10-01-05 3300 XL 11 mm Proximity Probes

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	330703-000-026-10-01-05
Minimum Order Quantity:	1
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Description

The 330703-000-026-10-01-05 3300 XL 11 mm Proximity Probes represent a sophisticated advancement in eddy current sensing technology, specifically engineered to surpass the performance of legacy hardware. As a cornerstone of the modern 3300 XL 11 mm Proximity Probes lineup, this specific model serves as the definitive replacement for the older 7200-series 11 mm and 14 mm transducer systems. Transitioning to the 3300 XL 11 mm Proximity Probes platform is a comprehensive process; because the electrical characteristics differ significantly from previous generations, every single loop component—including the probe, extension cable, and Proximitor sensor—must be swapped for dedicated 3300 XL 11 mm Proximity Probes hardware to ensure accurate vibration and position data.

Integrating the 330703-000-026-10-01-05 3300 XL 11 mm Proximity Probes also requires an evaluation of your existing rack infrastructure. For those utilizing the 3500 Monitoring System, the configuration software must be updated to a version that explicitly supports the 3300 XL 11 mm Proximity Probes as a valid input type. This software update is vital for the system to correctly scale the voltage output into engineering units. Furthermore, if your facility continues to operate the older 3300 Monitoring System, a physical hardware modification may be necessary to accommodate the signal profile of the 3300 XL 11 mm Proximity Probes. Consultation with a certified service representative is recommended to ensure the 330703-000-026-10-01-05 integrates seamlessly with your protective relay logic.

The mechanical superiority of the 330703-000-026-10-01-05 3300 XL 11 mm Proximity Probes is evident in its rugged construction and patented design features. This model incorporates the high-strength TipLoc molding method and the secure CableLoc attachment, providing a massive 330 N (75 lbf) pull strength.

Applications

1.Extended Range Axial Thrust Monitoring

The primary application for this 11 mm probe is monitoring the axial (thrust) position of large rotating shafts. With an impressive 4.0 mm (160 mils) linear range, it provides double the sensing distance of standard probes. This is essential for massive turbines and compressors where shaft float can exceed the limits of smaller sensors. It ensures the rotor remains within safe longitudinal tolerances, preventing catastrophic internal collisions between rotating and stationary components.

2.Radial Vibration on Large-Diameter Shafts

The 330703-000-026-10-01-05 is frequently applied to measure radial vibration in large fluid-film bearing machines. The larger 11 mm tip diameter allows for better "averaging" of the shaft surface, which minimizes the impact of electrical and mechanical runout (scratches or metallurgical spots). This results in a cleaner signal for monitoring shaft orbits and detecting early signs of imbalance or misalignment in utility-scale power generation assets.

3.Compact Installation in Constrained Bearings

Despite its large sensing tip, this specific model features a very compact 26 mm (approx. 1.0 inch) overall case length with 0 mm of unthreaded length. This makes it the ideal choice for "short-reach" applications where mounting space is extremely limited. It is typically installed in low-profile bearing caps or specialized internal brackets where a longer probe body would interfere with the machine’s internal structural components.

4.Hazardous and High-Temperature Environment Protection

Equipped with Multiple Approvals (CSA, ATEX, IECEx), this probe is purpose-built for hazardous industrial zones such as oil refineries and offshore platforms. Its wide operating temperature range of -55°C to +175°C allows it to be mounted deep within the "hot zones" of steam turbines. The AISI 303/304 Stainless Steel casing and PPS tip provide the chemical and thermal resilience necessary to maintain a stable 50 Ω output despite exposure to hot synthetic lubricants.

Specifications

Competitive Advantage

1.Industry-Leading 4.0 mm Linear Range

The most significant competitive edge of this 11 mm probe is its 4.0 mm (160 mils) linear range, which is exactly double the capacity of standard 8 mm probes. This extended sensing envelope allows for the accurate monitoring of large axial shifts and high-amplitude radial vibrations that would "bottom out" or saturate smaller sensors. This makes it the superior choice for massive steam turbines and heavy industrial rotors where safety margins for shaft movement are wider.

2.Ultra-Compact Case for Low-Clearance Mounting

Despite its powerful 11 mm sensing tip, this specific model features a remarkably short 26 mm (approx. 1 inch) overall case length. In the competitive landscape of industrial sensors, finding a probe that offers a wide linear range within such a tiny physical housing is rare. This "stubby" design allows engineers to install high-range sensors in extremely cramped bearing housings or internal gearboxes where standard-length probes simply cannot fit.

3.Extreme Thermal Stability and Resilience

While many electronic sensors drift or fail as temperatures rise, the 330703-000-026-10-01-05 is rated for continuous operation from -55°C to +175°C. This wide thermal ceiling ensures that the probe maintains its calibration and output integrity even when mounted in the hottest sections of a turbine. Its low supply sensitivity (<2 mV change) further guarantees that thermal fluctuations in the power supply won't introduce noise into the critical machinery protection data.

4.Global Safety Compliance with Multiple Approvals

This probe comes with Multiple Approvals (including ATEX, IECEx, and CSA), providing a distinct advantage for global projects. Unlike uncertified sensors, this model can be specified for use in hazardous areas worldwide without the need for region-specific hardware changes. This simplifies inventory management for multinational operators and ensures that the sensing system meets the most stringent international explosion-proof and intrinsic safety standards.