330851-04-000-030-10-01-00 3300 XL 25 mm Proximity Probe

Overview

Place of Origin:	USA
Brand Name:	Bently Nevada
Model Number:	330851-04-000-030-10-01-00
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 330851-04-000-030-10-01-00 3300 XL 25 mm Proximity Probe is an advanced automation sensor specifically engineered for high-precision Differential Expansion (DE) measurement in midsize to large steam turbine generators. Featuring a smooth 1.06-inch diameter side-exit probe case, the probe integrates AISI 304 stainless steel construction for superior durability and a PEEK probe tip for high-temperature resistance. With a total travel of 25.4 mm vertical adjustment and a linear output of 0.787 V/mm (20 mV/mil) across a 12.7 mm linear range, this 25 mm transducer system ensures accurate monitoring of rotor-to-stator axial movement. The probe supports continuous operation up to 200°C (392°F) and short-term exposure up to 250°C (482°F). Optional flexible AISI 302 stainless steel armor with PFA jacket provides additional protection in harsh environments. Compatible with 7200 series and previous 25 mm DE Integral systems, the 3300 XL 25 mm probe allows seamless upgrades without monitor reconfiguration. Standard ClickLoc connectors with removable collars and connector protectors enable easy installation in tight clearances, while the modular design ensures maximum reliability in demanding industrial automation applications, making it ideal for precision machinery monitoring, turbine control, and predictive maintenance systems.

Applications

1. Differential Expansion Measurement
Designed for midsize to large steam turbines, this probe measures DE between rotor and stator using its 12.7 mm linear range, ensuring real-time monitoring of axial shaft movements to prevent mechanical failures.

2. Turbine Rotor Alignment Monitoring
Used in generator rotors, the 25 mm probe with 0.787 V/mm output allows precise detection of rotor misalignment, optimizing turbine efficiency and reducing vibration-induced wear.

3. High-Temperature Process Monitoring
Operating continuously up to 200°C and temporarily up to 250°C, this probe is ideal for high-heat industrial environments, including steam turbines, gas turbines, and high-pressure pump systems.

4. Predictive Maintenance Systems
Integrated with automation systems, the probe provides accurate shaft position and movement data for predictive maintenance software, reducing unplanned downtime and maintenance costs.

5. Retrofits and System Upgrades
Compatible with 7200 and prior 25 mm DE Integral systems, it allows existing turbine installations to be upgraded without altering monitor configurations, ensuring automation continuity and reducing retrofit downtime.

Specifications

Competitive Advantage

1. High Accuracy in Harsh Environments
The combination of stainless steel probe case, PEEK tip, and optional SST armor ensures precise measurements even under extreme temperatures and mechanical stresses.

2. Modular and Upgrade-Friendly
Fully compatible with legacy 7200 and 25 mm DE Integral transducer systems, allowing seamless system upgrades without additional modifications or wiring changes.

3. Robust Connector Design
Standard ClickLoc connectors with protective collars prevent contamination and facilitate installation in tight industrial spaces, maintaining signal integrity.

4. Flexible Installation Options
Available in multiple case configurations, side or rear exits, and English/metric threads, offering high adaptability to different machine designs and DE measurement requirements.

5. Reliable Continuous Operation
With proven temperature tolerance up to 200°C and short-term spikes up to 250°C, the 3300 XL 25 mm probe ensures uninterrupted monitoring in critical turbine and industrial automation processes.