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The 9200-09-01-02-00 is the specific model configuration of the two-wire Seismoprobe Velocity Transducer manufactured by Bently Nevada in the United States. It is primarily installed on the bearing housings or casings of large industrial rotating machinery to measure the absolute vibration velocity of the casing, serving as a core component for machinery condition monitoring and protection within factories.
Two-wire circuit
Classic moving-coil motor
Natural low-pass filtering characteristics
The 9200 is a two-wire transducer suitable for continuous monitoring or for periodic measurements in conjunction with test or diagnostic instruments. When ordered with the integral cable option, the 9200 has excellent resistance to corrosive environments without need of additional protection. Bently Nevada Seismoprobe Velocity Transducer Systems are designed to measure absolute (relative to free space) bearing housing, casing, or structural vibration.
The two-wire systems consist of a transducer and appropriate cable. The Seismoprobe family of velocity transducers is a two-wire design that uses moving-coil technology. It provides a voltage output directly proportional to the transducer's vibration velocity.
Moving-coil transducers are less sensitive to impact or impulsive excitation than solid-state velocity transducers, which are inherently accelerometers with embedded integration electronics. Moving-coil transducers are less sensitive to impact or impulsive excitation and can represent a good choice for certain applications. Because they don’t require external power, they are convenient for portable measurement applications.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Bently Nevada 9200-09-01-02-00 Two-wire Transducer Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Thermal Power
Mounted on the bearing housings of large forced draft fans, induced draft fans, and primary air fans to continuously monitor bearing unbalance and misalignment.
Hydroelectric Power
Used for measuring the absolute vibration velocity of hydraulic turbine generator scroll cases, upper guide bearing housings, and auxiliary drainage pump casings.
Petroleum Refining
Monitors the casings of medium-to-low-speed centrifugal pumps and reciprocating compressors in crude distillation and catalytic cracking units to prevent structural looseness.
Iron & Steel Metallurgy
Used for low-frequency vibration and impact monitoring on blast furnace blowers, converter dedusting fans, and large steel rolling mill gearbox housings.
Cement Manufacturing
Installed on the bearing housings of rotary kiln main drive gearboxes, large vertical mill separator fans, and exhaust induced draft fans to monitor severe mechanical unbalance.
Pulp and Paper Industry
Installed on the bearing housings of large drying cylinder drive gearboxes, pulp pumps, and high-vacuum pumps in paper machines to prevent paper breakage caused by vibration.
During the use of 9200-09-01-02-00, it is essential to ensure that the base is rigidly tightened to the bearing housing with a specified torque of 27 Nm (20 ft-lb) to avoid high-frequency noise caused by looseness.
Additionally, because this model utilizes an internal mechanical suspension, knocking it or subjecting it to mechanical impacts exceeding 50g is strictly prohibited on site.
Regarding wiring and maintenance, since the top-mounted coaxial connector lacks explosion-proof certification, reliable mechanical protection against water, oil, and signal cable pulling must be provided, and the maximum transmission cable length should be kept within 305 meters.
Finally, it must be removed periodically for sensitivity calibration checks to prevent internal spring fatigue.
9200-09-01-02-00 is a machinery condition monitoring tool built upon the principle of magneto-electric induction. Its internal core structure consists of a set of suspended moving coils and permanent magnets. When this device undergoes physical displacement along with the measured object, the relative movement between the internal components directly cuts the magnetic field lines. This action generates an alternating electrical signal at the output terminal without requiring any power. For this specific code, the internal suspension mechanism undergoes specialized physical adjustments. This allows it to adapt to secure mounting at any angle including vertical, inverted, or arbitrary tilt directions. It also locks the lowest capture frequency at 15 Hz to ensure accurate capturing of absolute vibration velocity on structural components across various complex orientations in industrial fields. In terms of electrical connection, this model utilizes a top-mounted coaxial connector for two-wire loop wiring. Combined with its standard 1/2-20 UNF threaded base, it can be rigidly attached to the bearing support surfaces of various pumps, fans, and compressors. This signal generation mechanism relies entirely on physical inertial induction. It frees the device from dependency on external excitation power sources and naturally screens out interferences such as high-frequency gear meshing chatter or aerodynamic excitation noise. Finally, it stably transmits the most pristine and representative dynamic mechanical values to the backend monitoring modules through long-distance shielded twisted-pair cables.
It is a two-wire Seismoprobe velocity transducer manufactured by Bently Nevada, designed to measure the absolute casing vibration velocity of rotating machinery.
What is the operating principle of 9200-09-01-02-00?
Operating on a moving-coil magneto-electric induction principle, its internal coil cuts magnetic field lines during casing vibration, self-generating an AC voltage proportional to the vibration velocity.
How to install and use products like 9200-09-01-02-00?
It must be rigidly tightened via its mounting base threads onto the bearing housing and then connected to a 3500 or 3300 monitoring system using a two-wire shielded cable
What is the measurement range or maximum displacement limit of 9200-09-01-02-00?
Its maximum allowable double amplitude (peak-to-peak) displacement is 2.54 mm (0.100 in), beyond which the moving coil will hit mechanical stops.
What unique advantage does 9200-09-01-02-00 have over solid-state velocity sensors?
It possesses an inherent mechanical low-pass filtering characteristic, making it insensitive to high-frequency random noise or sudden impacts, thus preventing electronic overload saturation.
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