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      High Temperature Velomitor System

      330750-20

      Spare Part Number

      PN330750-20-05

      Product Information:

      Bently Nevada 330750-20 is a configured High Temperature Velomitor System for measuring absolute machinery casing or bearing-housing vibration in high-temperature environments. The design separates the sensing element from the signal-conditioning electronics with a permanently connected integral cable so the electronics can be installed in a cooler location. The 20 length option identifies a 2-metre cable. Confirm the complete approval suffix, monitor compatibility and mounting requirements before order.
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      Technical specifications for

      330750-20

      0 TECHNICAL PARAMETERS
      • Manufacturer:
        Bently Nevada
      • Product Category:
        Sensor
      • Spare Part Number:
        330750-20-05
      • Estimated shipping dimensions:
        3.1 x 3.1 x 18.3 cm
      • Weight:
        0.635 kg
      • Tariff Code:
        8537101190
      • Country of origin:
        USA
      • Place of shipment:
        Xiamen, Fujian, China
      • Product Type:
        High Temperature Velomitor System
      • Configured Part Number:
        330750-20
      • Integral Cable Length:
        2 metres
      • Approval Option:
        Not specified in the supplied partial part number; confirm complete nameplate
      • Sensitivity:
        5.7 mV/mm/s (145 mV/in/s) ±5%
      • Frequency Response:
        15 to 2,000 Hz ±3.0 dB; 20 to 1,000 Hz ±0.9 dB
      • Amplitude Range:
        635 mm/s (25 in/s) peak below 680 Hz
      • Output Bias Voltage:
        -12 ±2.0 VDC
      • Sensing Head & Cable Temperature:
        -55°C to +400°C (-67°F to +752°F)
      • Electronics Temperature:
        -55°C to +121°C (-67°F to +250°F)
      • Series:
        Bently Nevada
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      Alternative Names

      330750 High Temperature Velomitor Bently Nevada 330750 HTVS 330750-20 High Temperature Velocity Sensor

      Information

      Overview Technical Specifications Configuration Notes Application Guidance
      The Bently Nevada 330750-20 is a High Temperature Velomitor System that separates the sensing element from the signal-conditioning electronics using a permanently connected integral cable. This arrangement supports velocity measurements at high-temperature machinery locations.
      Sensitivity: 5.7 mV/mm/s (145 mV/in/s) ±5%. Frequency response: 15 to 2,000 Hz ±3.0 dB and 20 to 1,000 Hz ±0.9 dB. Amplitude range: 635 mm/s (25 in/s) peak below 680 Hz. Output bias voltage: -12 ±2.0 VDC.
      The 20 option identifies a 2-metre integral cable. The current catalog format is 330750-AA-BB; because the supplied model does not include the approval suffix, confirm the complete nameplate and hazardous-area requirements before ordering.
      Mount the sensing head on the bearing housing or machine casing where vibration is effectively transmitted. Keep the signal-conditioning electronics in a cooler location and confirm cable routing, monitoring-system compatibility and approval requirements before commissioning.

      Technical notes

      The current Baker Hughes ordering format is 330750-AA-BB. The supplied number 330750-20 identifies the 2 m length option but does not state the approval option. Confirm the complete nameplate and required approvals before quotation.
      PRODUCT & ORDER FAQS

      Questions buyers ask about 330750-20

      • What is Bently Nevada 330750-20?

        It is a High Temperature Velomitor System used to measure absolute bearing-housing, casing or structural vibration in high-temperature machinery locations.

      • What does the 20 option identify?

        The 20 length option identifies a 2-metre integral cable between the sensing head and the signal-conditioning electronics.

      • What operating temperature does the sensing head support?

        Current G-prefix versions specify the sensing head and integral cable from -55°C to +400°C; the electronics are specified from -55°C to +121°C.

      • Does 330750-20 specify the hazardous-area approval?

        No. The current catalog format is 330750-AA-BB, and the supplied number stops after the length option. Confirm the complete nameplate and approval suffix before order.

      • What should be confirmed before ordering?

        Provide the complete nameplate, serial number, required approvals, mounting details, monitor compatibility and quantity. The quotation will confirm condition, availability, lead time and documentation.
      All FAQ
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          • Availability & Condition Confirmation

            Provide the complete nameplate and serial number. Confirm the 2 m integral cable, approval suffix, mounting arrangement, monitor compatibility and quantity. Product condition and included documentation will be stated in the quotation.

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          Moore Disclaimer: Moore Automated's sales automation equipment and related solutions are intended for industrial automation and business operational efficiency improvement purposes only. Product information, technical parameters, and application cases are for reference only and do not constitute an absolute guarantee of performance for any specific industry, scenario, or final application. Actual equipment performance may vary depending on factors such as the usage environment, system integration method, and maintenance conditions. Users should confirm compatibility and safety based on professional technical assessments. Moore Automated assumes no liability for any direct or indirect losses caused by improper use, modification, or failure to operate according to specifications, to the extent permitted by law.

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