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The 330500-03-04 as a specialized solid-state piezoelectric accelerometer, utilizes built-in electronics to capture absolute vibration data relative to free space. This model is equipped with a 1/4-28 UNF mounting thread stud to ensure a tight, rigid attachment onto machinery casings, bearing blocks, or structural components.
Captures high-frequency bearing defect vibrations precisely via solid-state piezo-electronics
Zero moving components, eliminate wear and periodic recalibration
Free from traditional moving-coil constraints, allowing installation at any angle or orientation
The 330500-03-04 operates with an entirely solid-state internal architecture that contains zero moving components. By eliminating physical linkages and moving parts, the sensor remains completely immune to mechanical wear, friction-induced aging, or operational degradation over extended lifecycles. Furthermore, this internal structure frees the unit from the strict directional constraints associated with old-style moving-coil velocity transducers, granting complete mounting flexibility to be positioned upside down, sideways, or at any intermediate angle of orientation without altering its stability.
Furthermore, it carries multiple international hazardous area agency approvals (Option 04, including CSA, ATEX, and IECEx), making it fully compliant for deployment in high-risk, intrinsically safe environments within the petrochemical, refining, and power generation industries. Its hermetically sealed 316L stainless steel case, paired with a standard top-exit 2-pin MIL-C-5015 connector, makes it the ideal solution for rolling-element bearing condition monitoring and early machinery fault warning.
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 330500-03-04 Velomitor Piezo-velocity Sensor 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.
Petrochemical & Refining Industry
Continuously monitors the casing vibration of various pumps and fans within high-risk areas to prevent mechanical loosening or bearing destruction.
Thermal Power
Monitors sudden casing vibration of auxiliary rotating machinery in power plants to avoid unplanned shutdowns caused by structural fatigue.
Iron, Steel & Metallurgy Industry
Monitors the mechanical health condition of large exhaust and air-supply equipment structures under high-temperature and impact-heavy environments.
Pulp & Paper Industry
Tracks the mechanical status of paper machine roll support structures and process fans in damp and slurry-splashed environments.
Mining & Mineral Processing
Monitors casing vibration of heavy-duty mining crushing, screening, and ventilation equipment under severe impact conditions.
Nuclear Power
Tracks the structural stability of critical conventional island pumps and fans under high-standard safety management specifications.
When mounting this sensor, strict compliance with torque specifications is mandatory (recommended 32 to 46 kg·cm), ensuring the 1/4-28 UNF thread stud is perfectly perpendicular to a flat, smooth machine surface to prevent signal distortion. During operation, care must be taken not to exceed the strict ambient temperature limit of 121°C, and the unit should be isolated from strong electromagnetic interference.
Furthermore, keep the top 2-pin MIL connector receptacle absolutely dry and clean to avoid accumulation of moisture, oil, or conductive debris, while properly securing the external extension cable to eliminate unwanted cable slap noise.
For this specific model, the sensor is equipped with a 1/4-28 UNF mounting thread adapter (Option 03) to ensure a secure attachment to various machinery surfaces. It also includes multiple international hazardous area agency approvals (Option 04, such as CSA, ATEX, and IECEx), making it suitable for safe deployment in intrinsically safe environments. In operation, it captures vibration signals transmitted through its hermetically sealed 316L stainless steel case with a standard sensitivity of 3.94 mV/mm/s (100 mV/in/s), spanning a wide frequency response from 4.5 Hz to 5,000 Hz and tolerating a maximum peak velocity of 1270 mm/s (50 in/s). Via its top 2-pin MIL-C-5015 connector, the transducer delivers the voltage signal carrying a -12 Vdc bias to monitoring monitors over long distances without attenuation.
It is an industrial-grade solid-state piezo-velocity sensor belonging to the Bently Nevada Velomitor series.
What is the core measurement function of 330500-03-04?
It measures the absolute vibration velocity of bearing housings or machine casings relative to free space through direct surface contact.
How to install and use products like 330500-03-04?
Screw it vertically or horizontally into a standard mounting hole on the bearing housing surface using its 1/4-28 thread, and connect a 2-pin MIL-C-5015 extension cable to the monitor.
What is the difference between its internal structure and traditional moving-coil velocity transducers?
It incorporates embedded solid-state electronics and has no moving parts, preventing mechanical degradation or wear, and allows installation at any orientation angle.
What is the standard sensitivity of 330500-03-04?
Its nominal sensitivity is 3.94 mV/mm/s (100 mV/in/s) ±5%.
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Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.
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