Bently Nevada 3300/20-13-03-01-00-00 Dual Thrust Position Monitor

Bently Nevada 3300/20-13-03-01-00-00 Dual Thrust Position Monitor

The Bently Nevada 3300/20-13-03-01-00-00, also cataloged as the 3300/20 Dual Thrust Position Monitor, operates as a dedicated hardware component for continuous axial position measurement and thrust bearing failure prevention within 3300 series monitoring system platforms.

Suffix Breakdown & Model Matrix

Hardware Specifications

Mechanical Monitoring & TSI Integration

The Bently Nevada 3300/20-13-03-01-00-00 performs high-precision monitoring of shaft axial position relative to machine thrust bearing clearances. To maintain the integrity of the axial protection path, the system requires precise eddy-current probe scaling to ensure the monitor accurately interprets gap voltage changes as physical displacement. Gap voltage validation (-10 VDC targets) is critical during initial installation to ensure the transducer operates within its linear range; failure to calibrate correctly may result in false alarms or missed protection trips. For optimal safety, this module should be configured with AND voting logic (2oo2) across dual probes to prevent false triggers caused by individual transducer failures.

Frequently Asked Questions

Q: Can the 3300/20-13-03-01-00-00 be integrated into systems with SDI/DDI protocols?

A: Yes, this model supports both original 3300 configurations and modern Serial Data Interface (SDI) / Dynamic Data Interface (DDI) communication protocols.

Q: Why is AND voting recommended for thrust position measurements?

A: Thrust measurements rely on proximity probe gap voltage; using AND voting requires both probes to exceed alarm setpoints simultaneously, which mitigates the risk of false trips caused by a single transducer fault.

Field Installation Guidelines

• Probe Alignment: Install axial probes to observe the thrust collar directly. Ensure the gap is set to the nominal voltage target specified in the site configuration manual to maintain linear sensitivity.
• Shielding: Utilize dedicated, shielded cabling for all proximity transducer inputs to reduce noise floor and prevent electromagnetic interference (EMI).
• Module Seating: Ensure the module is fully seated in the rack backplane to establish stable power and communication paths.
• Configuration: Verify that alarm setpoints and voting logic are correctly programmed via the System Monitor (3300/03) to match the machine's mechanical limits.