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        330500-03-02

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        The 330500-03-02 Velomitor Piezo-velocity Sensor is a specialized piezoelectric accelerometer designed to measure absolute (relative to free space) bearing housing, casing, or structural vibration.
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
        Shipping Mode
        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for 330500-03-02

        • Manufacturer:
          Bently Nevada
        • Part Number:
          330500-03-02
        • Product Family:
          330500 Velomitor Piezo-velocity Sensor
        • Product Type:
          Velocity Sensor
        • Stock:
          1
        • Mounting Thread Adaptor:
          1/4 - 28 UNF
        • Sensitivity:
          3.94 mV/mm/s (100 mV/in/s) ±5%.
        • Temperature Sensitivity:
          -14% to +7.5% typical over full operating range.
        • Velocity Range:
          1270 mm/s (50 in/s) peak.
        • Transverse Sensitivity:
          Less than 5% of sensitivity.
        • Amplitude Linearity:
          ±2% up to 152 mm/s (6 in/s) peak.
        • Mounted Resonant Frequency:
          Greater than 12 kHz.
        • Output Bias Voltage:
          -12 ±3.0 VDC, referenced to Pin A.
        • Weight:
          0.14 kg
        • Estimated shipping dimensions:
          6.2x2.4x2.4cm
        • Tariff Code:
          8537101190
        • Country of origin:
          USA
        • Place of shipment:
          Xiamen,Fujian,China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals Specifications Applications Environmental Ratings Temperature & Humidity Range

        Features:

        • Piezoelectric Accelerometer with Embedded Integrated Electronics for Absolute Vibration Measurement
        • Solid-State Design Eliminates Mechanical Degradation and Wear with Flexible Mounting Orientation
        • Operates in Conjunction with Bently Nevada™ Monitoring Systems and Machinery Protection Platforms
        The 330500-03-02 operates as the Velomitor Piezo-velocity Sensor, providing reliable absolute vibration measurement of bearing housing, casing, or structural vibration relative to free space. The 330500-03-02 continuously converts mechanical vibration into electrical signals through its specialized piezoelectric accelerometer design and transmits this data to monitoring systems for real-time machinery protection. Seamless signal transmission is standard with the 330500-03-02, however using proper installation techniques will ensure accurate amplitude and frequency response in the event of challenging mounting conditions or environmental interference. The 330500-03-02 incorporates solid-state electronics with no moving parts, representing significant improvements over traditional velocity sensors in addition to providing versatile mounting capabilities at any angle of orientation.

        The 330500-03-02 provides essential vibration measurement functions common to rotating machinery protection, and is a critical component of the monitoring path, directly affecting the proper, normal operation of the overall machine protection system. One 330500-03-02 sensor is required per measurement point depending on the specific monitoring requirements. The 330500-03-02 features a 1/4 - 28 UNF mounting thread adaptor for secure installation and is always located on the bearing housing or machine casing (the dedicated transducer mounting positions).

        For accurate displacement measurement applications, the 330500-03-02 requires careful integration of its velocity output signal. In addition to standard velocity measurement operation, the 330500-03-02 output can be integrated to derive displacement data. The 330500-03-02 signal conditioning must account for potential electrical noise amplification from interference and transducer circuits. Using this method, the monitoring system continually processes the 330500-03-02 vibration signals. If the system detects that the 330500-03-02 is generating inaccurate displacement data due to noise degradation, it will automatically flag data quality issues and place an event in the System Event List.

        The 330500-03-02 Bently Nevada Velomitor Piezo-velocity Sensor may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        Bently Nevada 330500-03-02 Velomitor Piezo-velocity Sensor Manuals,Datasheets,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. All prices are shown in USD.
        Bently Nevada 330500-03-02 Velomitor Piezo-velocity Sensor Specs

        General

        • Manufacturer Bently Nevada
        • Model 330500-03-02
        • Condition New Original ready stock
        • Product Family 330500-03-00,330500-03-01,330500-03-04
        Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        • Bearing Housing and Casing Vibration: Measuring absolute vibration relative to free space on machine housings.
        • Machine Malfunction Detection: Identifying common rotor-originated issues such as unbalance and misalignment.
        • Rolling-Element Bearing Machines: Specially suited for machines utilizing rolling-element bearings.
        • Flexible Mounting: Its solid-state design with no moving parts allows it to be mounted at any angle (vertical, horizontal, or otherwise) without performance degradation.
        • Shock Survivability: Can withstand up to 5,000 g peak maximum.
        • Magnetic Field Susceptibility: Less than 51 µin/s/gauss (at 50 gauss, 50-60Hz).
        • Hazardous Area Approvals: The "-02" option suffix indicates European ATEX approval for use in hazardous environments. It is also certified for North America (CSA) and IECEx.
        • Construction: Features a 316L stainless steel hermetically sealed case and a 2-pin Mil-C-5015 connector.
        • Operating Temperature: The standard operating range is -55°C to 121°C (-67°F to 250°F).
        • Relative Humidity: Up to 100% non-submerged; the case is hermetically sealed to prevent moisture ingress.
        • Temperature Sensitivity: Typically varies between -14% to +7.5% over the full operating temperature range.
        Description
        The 330500-03-02 incorporates embedded integrated electronics in a solid-state design, ensuring reliable performance without mechanical degradation or wear. The 330500-03-02 can be mounted vertically, horizontally, or at any other angle of orientation, providing flexibility for various installation requirements. The 330500-03-02 features a 1/4 - 28 UNF mounting thread adaptor and holds ATEX (European) agency approval, making it suitable for use in hazardous environments.

        The 330500-03-02 is specifically designed for overall machine protection applications where continuous monitoring of rotor vibration is essential. Most common machine malfunctions, such as unbalance and misalignment, originate on the rotor and manifest as increased or changed rotor vibration. The 330500-03-02 effectively captures these vibration signals when properly installed on bearing housings or machine casings, ensuring that a significant amount of rotor vibration is transmitted to the transducer mounting location. This 330500-03-02 sensor is ideal for critical rotating machinery in industrial settings, including turbines, compressors, pumps, and motors, where early detection of mechanical faults prevents catastrophic failures and costly downtime.

        Proper installation of the 330500-03-02 is crucial for accurate vibration measurement. The 330500-03-02 must be carefully mounted on the bearing housing or machine casing to maintain optimal transducer amplitude and frequency response. Improper installation of the 330500-03-02 may decrease measurement accuracy and generate false signals that do not represent actual vibration conditions. Users should refer to the appropriate instruction manuals and Application Notes when installing the 330500-03-02 to ensure reliable performance. Additionally, when integrating the 330500-03-02 Velomitor output to measure displacement, users must account for potential electrical noise from interference and the transducer circuit, as this noise can be amplified and degrade the performance of the 330500-03-02, producing inaccurate displacement data.
        Alternative Names
        330500 03 02 330500-03-00 330500-03-01 330500-03-04 330500-04-02 33O5OO-O3-O2 330500-03-CN 330500-03-RU
        Technical notes
        The 330500-03-02 is a Velomitor Piezo-velocity Sensor designed for absolute casing vibration measurement. This 2-wire sensor provides a 100 mV/in/s (4 mV/mm/s) output and requires no external power . It features a 1/4-28 UNF mounting stud and a specific top-exit connector configuration.
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        What are the main applications of the 330500-03-02?
        It is designed for overall machine protection applications, particularly for continuous monitoring of rotor vibration in critical rotating machinery.
        What types of equipment is this sensor commonly used on?
        It is widely used on turbines, compressors, pumps, and motors in industrial settings.
        What kinds of faults can the 330500-03-02 detect?
        It can detect early signs of faults such as unbalance, misalignment, and other rotor-related issues.

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