Bently Nevada 330851-08-000-019-90-01-00 3300 XL 25 mm Proximity Probe

Product Description

Configured for non-contact shaft displacement and vibration measurement in rotating machinery monitoring systems, the Bently Nevada 330851-08-000-019-90-01-00 (330851 25 mm Proximity Probe) provides direct eddy-current sensing of the target surface. The probe generates a gap-dependent electrical signal for machinery condition monitoring while its high-temperature construction supports operation in demanding steam turbine drive-end environments.

Suffix Breakdown & Model Matrix

Hardware Specifications

Eddy-Current Scaling and Gap Voltage Validation

The 330851-08-000-019-90-01-00 uses eddy-current sensing to detect changes in the distance between the probe tip and the conductive target. As the target position changes, the probe system produces a corresponding gap voltage and dynamic signal.

Technicians can use gap voltage measurements during commissioning to verify probe positioning and target conditions. A nominal gap voltage near -10 VDC is commonly used as a reference target in compatible Bently Nevada proximity measurement applications, subject to the applicable transducer system configuration and installation requirements.

The 25 mm probe construction also supports rotor dynamics monitoring in high-temperature machinery. Front and rear seals, together with the FluidLoc cable, restrict moisture entry into the probe assembly. In addition, high-temperature ClickLoc connectors maintain the probe and extension cable connection under elevated-temperature service conditions.

Frequently Asked Questions

Q: What does the 25 mm probe measure?
A: The probe measures changes in the distance between its sensing tip and a conductive target. The transducer system provides dynamic vibration information and a DC gap voltage related to target position.

Q: How does the probe handle high-temperature environments?
A: The 25 mm probe can operate continuously at temperatures up to 200 deg C and withstand intermittent temperatures up to 250 deg C. Its construction includes front and rear seals, a FluidLoc cable, and high-temperature ClickLoc connectors.

Q: Does the probe include armored cable protection?
A: No. The specified 330851-08-000-019-90-01-00 configuration uses the no-armor option.

Field Installation Guidelines

Install the probe so that the sensing tip maintains the specified mechanical clearance from the target throughout the complete machine operating range. Confirm that shaft runout, thermal movement, and mechanical tolerances do not move the target outside the required measurement range.

Route the probe cable away from high-current power conductors, switching devices, and other sources of electromagnetic interference. Avoid unnecessary cable splices and sharp bending near the probe lead or connector.

Keep the ClickLoc connectors clean during installation. Use the supplied connector protectors to prevent contamination before final connection. The removable collar on the probe lead connector can assist cable routing through restricted clearances.

Maintain the probe system shielding and grounding arrangement according to the applicable machinery monitoring system installation documentation. After installation, verify the gap voltage and dynamic signal before placing the machinery monitoring channel into service.

Other Attribute

• Series: 3300 System
• Country of Origin: USA
• Lead Time: In Stock, 2 Working Days

In Stock Hot Items of The 3500 System

Our Competitive Brands

• - ABB Advant-800xA，Advant OCS，Bailey Infi 90 and Net 90，H&B Freelance 2000，DSQC Robots，IGCT / IGBT
• - GE General Electric Field Control, Genius I/O, QuickPanel, RX3i PacSystem, Series 90, Series 90, Series VersaMax
• - Allen Bradley Allen-Bradley SLC500, MicroLogix, CompactLogix, ControlLogix, PLC-5, Panel View,
• - Bently Nevada 3300 System, 3500 System
• - Honeywell 7800 Series, FSC, IPC, Mxopen, TDC 2000, TDC 3000, Experion PKS(C200,C300)
• - Yokogawa Centum CS - Centum VP, Centum XL - micro XL, FA-M3, ProSafe-PLC
• - Ovation, Foxboro, EPRO, Emerson DeltaV, Fuji, Siemens, HIMA, Prosoft, Invensys Triconex, ICS TRIPLEX, Woodward, Bachmann, Schneider

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