The Bently Nevada 21504-000-008-10-02, also cataloged as the 21504 Standard Mount Probe, operates as a dedicated hardware component for non-contact shaft displacement measurement within Bently Nevada proximity transducer networks. The probe generates eddy-current response signals proportional to conductive target movement and interfaces with matched extension cable and driver assemblies for calibrated vibration and position monitoring.

Product Configuration Reference

The model designation 21504-000-008-10-02 identifies a factory-configured standard mount proximity probe assembly. No verified field suffix decoding information was supplied with the provided technical data.

Mechanical and Electrical Specifications

Rotor Dynamics Signal Characteristics

The probe assembly operates within rotating machinery monitoring systems to detect radial shaft movement relative to bearing reference positions. Eddy-current field interaction between the probe tip and conductive shaft surface produces displacement-related voltage variation for vibration analysis and rotor position tracking. Stable rotor dynamic measurement depends on correct probe gap adjustment, cable shielding continuity, and matched transducer system components.

Technical Questions and Answers

Q: Can the probe be installed without a matched extension cable?
A: No. The probe system calibration depends on the specified extension cable and associated driver assembly.

Q: Does probe mounting torque affect measurement stability?
A: Excessive mounting force may distort the threaded housing or alter probe positioning relative to the target surface.

Q: What target materials are compatible with the probe?
A: Conductive metallic shaft materials are required for proper eddy-current coupling and signal generation.

Q: Can the probe cable share conduit space with motor power wiring?
A: Shared routing with high-current conductors is not recommended due to potential electromagnetic interference.

Q: Is external power connected directly to the probe body?
A: No. Probe excitation is supplied through the connected proximitor or driver circuit.

Installation and Wiring Practices

Verify threaded engagement before machine startup and maintain adequate probe clearance to prevent mechanical contact with the rotating shaft surface. Avoid sharp cable bends near the probe exit point. Maintain shield continuity across all connector interfaces and route signal cables independently from AC power feeders and relay switching conductors. During commissioning, verify static gap voltage according to the associated monitoring system setup procedure.

Ordering Info

(1) Shipment includes one Bently Nevada standard mount probe assembly.

(2) Protective connector covers and anti-static packaging are included with shipment.

(3) Extension cable and driver components are supplied separately unless specified in the order configuration.

(4) Optional mounting sleeves and hardware kits are available for compatible installations.

Dispatch and Packaging Information

Delivery time: 2-7 days when payment finish. Shipments are processed through DHL, FedEx, or UPS international transport services based on regional routing conditions. All units are packed using anti-static industrial packaging materials with reinforced cushioning protection for probe tip and connector assemblies during transit.