Description

The Bently Nevada 9200-03-06-10-00, also cataloged as the 9200 Velocity Transducer, operates as a dedicated hardware component for casing vibration measurement within rotating machinery monitoring systems.

Hardware Specifications

Machinery Monitoring & TSI Characteristics

The transducer utilizes a moving-coil design that eliminates the need for external power supplies while it delivers an output voltage directly proportional to vibration velocity. Furthermore, internal magnetic shielding provides robust cross-talk suppression, which actively prevents adjacent electromagnetic interference from degrading low-frequency signals. To ensure correct data interpretation, machinery protection monitors must align their scaling configurations with the specific 20.0 mV/mm/s output profile. Consequently, the mechanical assembly captures precise casing deflection inputs, which provides critical data for fundamental rotor dynamics analysis without introducing internal structural resonance across the specified operating band.

Frequently Asked Questions

Q: Does this transducer require external power excitation?

A: No, the hardware uses a passive moving-coil architecture that generates its own voltage signal relative to velocity, thereby eliminating external power supply dependencies.

Q: How does the cable length affect the signal path to the monitor?

A: Cable capacitance restricts the maximum distance; however, typical industrial installations successfully support up to 305 meters of shielded, twisted-pair cabling without signal attenuation.

Q: Where should engineers terminate the transducer signal shield?

A: Engineers must isolate the shield at the transducer housing and connect it directly to the instrument ground terminal at the monitor or junction box end to prevent ground loops.

Field Installation Guidelines

• Mount the transducer securely onto a flat, rigid surface using the designated threaded stud. Additionally, ensure the mounting surface roughness does not exceed 0.8 micrometers.
• Apply thread-locking compound to the mounting stud and torque the assembly to 11.3 N-m to prevent mechanical loosening under high vibration conditions.
• Route the flexible armored conduit or shielded cable away from high-voltage AC power lines, because this action mitigates electromagnetic noise coupling.
• Maintain a minimum bend radius of 25.4 mm for the conduit, which prevents internal conductor stress and eventual physical degradation.