Configured for vibration velocity measurement in TSI monitoring systems, the Bently Nevada 9200-01-20-10-00 (9200 Seismoprobe Velocity Transducer) provides direct physical/electrical execution via moving-coil velocity generation without external excitation supply.
Suffix Breakdown & Model Matrix
9200: Base series Seismoprobe velocity transducer platform
10: Mounting base configuration, M10 x 1 threaded stud interface
00: No hazardous area or agency approval option
Hardware Specifications
Parameter
Specification
ModelBrand
Bently Nevada 9200-01-20-10-00
Origin
USA (Brand origin)
Weight
1.04 kg
Dimensions
30 x 30 x 4 cm
OperatingTemp
-29 degC to +121 degC
PowerConsumption
Self-generating (no external supply required)
Sensitivity
20 mV/mm/s +/- 5% @ 22 degC, 100 Hz
Frequency Response
4.5 Hz to 1000 Hz
Coil Resistance
1.25 kOhm +/- 5%
Inductance
125 mH (locked coil)
Linearity
+/- 5% (0.01 to 5.0 in/s)
Eddy-Current Scaling and TSI Signal Validation Behavior
The 9200 platform operates within mechanical vibration measurement chains where output voltage is derived from coil motion relative to magnetic flux density. In Bently Nevada TSI architectures, velocity transducer scaling is periodically cross-checked against eddy-current displacement probe channels to validate rotor dynamics consistency. Gap voltage validation reference levels (commonly -10 VDC domain in proximity systems) are used as comparative baselines for drift detection between displacement and velocity domains. Cross-talk suppression is maintained through mechanical isolation of coil assembly and shielded signal routing within the integral cable structure.
Frequently Asked Questions
Q: Does the 9200-01-20-10-00 require external loop power? A: No. The moving-coil design generates output voltage directly from relative motion, eliminating external excitation requirements.
Q: Can the unit be used with standard vibration monitors? A: Yes. It is compatible with vibration monitoring inputs designed for mV/mm/s velocity signals, provided input impedance and scaling match coil output characteristics.
Q: What is the effect of mounting angle deviation on output? A: Deviation beyond the calibrated 0 deg ±2.5 deg range introduces amplitude scaling error due to gravity vector coupling and mechanical axis misalignment.
Field Installation Guidelines
Install the transducer using the M10 threaded stud with a minimum engagement of 5 full threads. The mounting surface shall be rigid, flat, and free from paint layers or mechanical damping compounds. Cable routing shall maintain separation from high-current conductors to minimize induced noise coupling. Shield termination should be performed at the monitoring system end only to avoid ground loop formation. Mechanical orientation must align with the primary vibration axis of the monitored structure to preserve frequency response integrity from 4.5 Hz upward.
