• Please try to be as accurate as possible with your search.
  • We can quote you on 1000s of specialist parts, even if they are not listed on our website.
  • We can't find any results for “”.
    SEE MORE
      SEE PRODUCTS IN SEARCH PAGE ()
      sales1@apterpower.com
      +86 181 0690 9650
      Request a

      Fast Quote

      Manufacturers
      ALL MANUFACTURERS
      • Please try to be as accurate as possible with your search.
      • We can quote you on 1000s of specialist parts, even if they are not listed on our website.
      • We can't find any results for “”.
        Manufacturers
        sales1@apterpower.com +86 181 0690 9650
        Choose a manufacturer
        ALL MANUFACTURERS
        Ask our team:
        • Phone: +86 181 0690 9650
        • E-Mail sales1@apterpower.com

        3300/45

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        Bently Nevada 3300/45 Dual Differential Expansion Monitor Provides Precise Dual-Channel Axial Rotor Expansion Monitoring For Turbine Applications.
        Get a quick price for 3300/45
        Quantity
        *E-mail
        Company
        *Mobile
        *Content
        Upload (gif, jpg, jpeg, png, bmp, doc, docx, xls, xlsx, ppt, pdf, csv)
        Get a Quote
        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 3300/45

        • Manufacturer:
          Bently Nevada
        • Part Number:
          3300/45
        • Product Family:
          3300 System
        • Input Signal:
          Accepts two proximity probe transducer signals.
        • Input Impedance:
          10kΩ
        • Signal Scale Factor:
          20 mV/mil (0.787 V/mm) or 10 mV/mil (0.392 V/mm), jumper-selectable.
        • Power:
          Nominal consumption of 1.5 watts.
        • Accuracy:
          With 0.33% of ful-scale typical, +/- 1% maximum; Specified at ambient temperature of +25°C (+77°F).
        • Operating Temperature:
          0°C to +65°C (+32°F to +150°F).
        • Storage Temperature:
          -40°C to +85°C (-40 °F to +185°F).
        • Relative Humidity:
          To 95%, noncondensing.
        • Weight:
          2 kg
        • Estimated shipping dimensions:
          5.1x20.3x30.5cm
        • Tariff Code:
          6115291000
        • 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 & Use Cases Comm & Connectivity Safety & Compliance

        Features:

        • Provides Continuous Dual-Channel Monitoring Of Rotor Axial Expansion
        • Features Jumper-Selectable Signal Scale Factor Of 20 mV/Mil Or 10 mV/Mil
        • Supports Four Alarm Setpoints Per Channel With High Accuracy And Low Power Consumption
        The Bently Nevada 3300/45 Dual Differential Expansion Monitor is designed to accurately track the axial displacement of rotors relative to the machine casing, addressing challenges caused by thermal growth during turbine startup and shutdown. This monitor ensures precise measurement of changes in axial clearance that can affect machine performance and safety.

        Equipped with two proximity probe transducer inputs, the 3300/45 allows operators to monitor both the magnitude and direction of differential expansion. Its jumper-selectable scale factor, 20 mV/mil (0.787 V/mm) or 10 mV/mil (0.392 V/mm), combined with a nominal power consumption of 1.5 watts and 10 kΩ input impedance, guarantees reliable operation in ambient temperatures from 0°C to +65°C (32°F to 150°F) and storage conditions from -40°C to +85°C (-40°F to 185°F), with relative humidity up to 95% non-condensing.

        Compared to standard monitors, the Bently Nevada 3300/45 provides flexible configuration with the option to disable Channel B for single-location measurements, while offering four configurable alarm points per channel. Its ±0.33% full-scale typical accuracy (±1% maximum) at 25°C (+77°F) ensures dependable integration with Turbine Supervisory Instrumentation systems, making it suitable for critical applications in turbines, compressors, and other rotating machinery where monitoring axial expansion is essential.

        The 3300/45 Bently Nevada Dual Differential Expansion Monitor may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).

        Bently Nevada 3300/45 Dual Differential Expansion Monitor 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. All prices are shown in USD.
        Bently Nevada 3300/45 Dual Differential Expansion Monitor Specs

        General

        • Manufacturer GE / Bently Nevada
        • Model 3300/45
        • Condition New Original ready stock
        • Product Family 3300/45-10-02-01-00,3300/45-09-01-00-00,3300/45-08-04-02-01
        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.
        • Axial Clearance Protection: Real-time monitoring of rotor axial displacement relative to the housing ensures safe clearance for critical components such as shaft seals and blades.
        • Dual-Channel Monitoring: Configurable as two independent channels to monitor differential expansion at different locations within the machine; or channel B can be shut down when only a single measurement point is required.
        • Multi-Sensor Support: Supports large-range eddy current probe inputs of 25 mm, 35 mm, or 50 mm to accommodate the expansion range of different unit sizes (up to 20 mm or 1.0 inch).
        • Analog Output: Each channel provides an independent recorder output, selectable for +4 to +20 mA current signals, 0 to -10 Vdc, or +1 to +5 Vdc voltage signals for connection to DCS or PLC systems.
        • Buffered Transducer Outputs: The front panel provides buffered transducer outputs for technicians to perform on-site diagnostics using oscilloscopes or dynamic signal analyzers.
        • Data Interface Integration: This module can transmit monitoring data to the host computer software via SDI (Serial Data Interface) or DDI (Dynamic Data Interface) protocols through a system monitor in the 3300 rack (such as the 3300/03).
        • Industry Standards: As part of the 3300 system, its design fully complies with the stringent requirements of the API 670 standard for mechanical protection systems.
        • Alarm Logic: Each channel supports four independent alarm points (two upper limits and two lower limits) and is equipped with four quad relay outputs, configurable with epoxy sealing for enhanced chemical resistance.
        • Self-Diagnosis: Features Not OK status monitoring. When a probe or cable is damaged, the recorder output can be clamped to 2 mA (if selected), helping the automation system clearly distinguish between "sensor failure" and "lower limit of measurement range".
        • Institutional Certifications: Optional CSA/NRTL/C certifications are available to meet safety application specifications in North America and international hazardous areas.
        View as PDF
        Description
        The Bently Nevada 3300/45 Dual Differential Expansion Monitor is engineered to provide accurate measurement of rotor axial displacement relative to the machine casing, specifically addressing challenges caused by thermal expansion during turbine startup and shutdown. This instrument is ideal for capturing changes in axial clearances that directly impact turbine efficiency and reliability.

        Designed for critical machinery, the 3300/45 monitors differential expansion using two proximity probe transducer signals with a jumper-selectable scale factor of 20 mV/mil (0.787 V/mm) or 10 mV/mil (0.392 V/mm). Both the magnitude and direction of axial displacement are continuously tracked, ensuring operators can detect potential clearance issues early. With a nominal power consumption of 1.5 watts and an input impedance of 10 kΩ, this unit operates efficiently across a wide ambient temperature range of 0°C to +65°C (32°F to 150°F) and can be stored safely from -40°C to +85°C (-40°F to 185°F) with relative humidity up to 95% non-condensing.

        Compared to similar devices, the Bently Nevada 3300/45 offers enhanced flexibility by allowing Channel B to be turned off for machines requiring a single-point measurement, while providing four alarm setpoints per channel (two over and two under). This configuration ensures precise monitoring without unnecessary complexity. Its accuracy of ±0.33% of full-scale typical, ±1% maximum at 25°C (77°F), supports reliable turbine supervisory instrumentation integration.

        Applications of the 3300/45 include power generation turbines, compressor trains, and other critical rotating machinery where axial expansion monitoring is essential. By using proximity probe transducers mounted to the machine casing, the 3300/45 Dual Differential Expansion Monitor ensures operators gain actionable insight into rotor behavior, enabling timely maintenance and reducing the risk of unplanned outages.

        Whether deployed in new installations or retrofitting existing systems, the Bently Nevada 3300/45 outperforms conventional differential expansion monitors with superior accuracy, configurable alarm points, and robust environmental tolerance. Its dual-channel design and low power consumption make it a preferred choice for modern turbine supervisory instrumentation systems.
        Alternative Names
        3300/45-01-01-00-00 3300/45-02-02-01-00 3300/45-03-03-00-01 3300/45-04-04-01-01 3300/45-05-01-02-00 3300/45-06-02-00-01
        Exceptional Service

        Our Mission

        • 100% Satisfaction

          We believe expertise is priceless. With over 20 years of experience, and top engineers on staff, we can help you solve or avoid problems that threaten your business.

        • Trust Guaranteed

          Not only do we have a vast inventory, our team makes sure every piece of equipment is in working condition. Your purchases are also backed by our Warranty.

        • Expertise

          Time is money, especially when your equipment is down. We work quickly to get your equipment on its way so you can get it back up and running.

        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 input signals does the 3300/45 accept?
        It accepts two proximity probe transducer signals for dual-channel differential expansion monitoring.
        How can the signal scale factor be adjusted?
        The scale factor is jumper-selectable: 20 mV/mil (0.787 V/mm) or 10 mV/mil (0.392 V/mm).
        Does Bently Nevada 3300/45 Dual Differential Expansion Monitor come with a warranty?
        Yes, the 3300/45 includes a 1-year Apter Power warranty.
        What is the typical power consumption of the 3300/45?
        Nominal power consumption is 1.5 watts, supporting efficient integration with turbine systems.

        You May Also Like

        Product Browsing History