Stock New Original Bently Nevada 330780-91-CN Proximitor Sensor

The Bently Nevada 330780-91-CN is a 9.0-meter, DIN-rail mounted Proximitor® Sensor from the 3300 XL 11 mm Proximity Transducer System. It serves as the signal-conditioning stage of the transducer system, converting the eddy-current signal from a 3300 XL 11 mm probe and extension cable into a precise analog voltage output for vibration, thrust position, and Keyphasor measurements on large fluid-film bearing machinery.

  • Item No :

    330780-91-CN
  • Order(MOQ) :

    1 Piece
  • Payment :

    EXW/CIF
  • Product Origin :

    USA
  • Shipping Port :

    Wuhan
  • Lead Time :

    3-5days
  • Weight :

    3kg
  • Product Details

     
     
    Specification Description
    Manufacturer Bently Nevada (Baker Hughes)
    Model 330780-91-CN
    Product Family 3300 XL 11 mm Proximity Transducer System
    Product Type Proximitor® Sensor (Signal Conditioner)
    System Length 9.0 meters (29.5 feet) 
    Mounting Style DIN-rail mount (35 mm standard rail) 
    Agency Approval China NEPSI + CCC hazardous area approval package 
    Input Compatibility 3300 XL 11 mm proximity probe + matching extension cable 
    Output Sensitivity 3.94 V/mm (100 mV/mil) ±10% typical 
    Linear Range 4.0 mm (160 mils), starting at ~0.5 mm from target 
    Recommended Gap 2.5 mm (100 mils) 
    Frequency Response 0 to 8 kHz (+0, -3 dB typical) 
    Power Supply (No Barrier) -17.5 Vdc to -26 Vdc, max 12 mA 
    Power Supply (With Barrier) -23 Vdc to -26 Vdc 
    Output Resistance 50 Ω 
    Housing Material A380 aluminum 
    Connector Material Gold-plated brass ClickLoc™ 
    Operating Temperature -52°C to +100°C (-62°F to +212°F) 
    Storage Temperature -52°C to +105°C (-62°F to +221°F) 
    Humidity 100% condensing (non-submersible with protected connectors) 
    Country of Origin USA 
    Lifecycle Status Active / Available as New Surplus

    Related Product Model Recommendations

     
     
    Model Description Typical Application
    330780-91-CN (this model) 9.0 m system, DIN-rail mount, China approvals Steam turbines, centrifugal compressors with China certification requirements 
    330780-90-CN 9.0 m system, panel mount, China approvals Applications where panel mounting is preferred 
    330780-50-CN 5.0 m system, panel mount, China approvals Shorter cable runs with panel mounting 
    330780-51-CN 5.0 m system, DIN-rail mount, China approvals Shorter cable runs with DIN-rail mounting 
    330730-040-00-00 4.0 m extension cable Extending probe to match 9.0 m system length 
    330703-000-060-10-02-00 11 mm proximity probe, 60 mm case, 1.0 m cable Typical companion probe for this Proximitor 
    330780-91-00 Same configuration, no agency approvals Non-hazardous area applications 
    330780-91-05 Same configuration, multi-approval package International hazardous area applications 

    FAQs

    Q1: What does the "91" and "CN" suffix mean in the model number?

    The "91" indicates a 9.0-meter system length with DIN-rail mounting configuration . The "-CN" suffix designates the China hazardous area approval package, including NEPSI and CCC certifications required for localized hazardous area compliance in the Chinese market .

    Q2: What probes and extension cables are compatible with this Proximitor?

    The 330780-91-CN is designed exclusively for 3300 XL 11 mm proximity probes and matching extension cables . It is not compatible with 8 mm system components (330180 series). The total system length (probe cable + extension cable) must equal 9.0 meters to match this Proximitor's rated length .

    Q3: Can this Proximitor be used as a Keyphasor signal source?

    No. While the 3300 XL 11 mm system can measure Keyphasor-related parameters, the 330780 Proximitor Sensor provides continuous distance measurement data, not the precision pulse-per-revolution timing signals required for phase analysis . For Keyphasor applications, a dedicated 3500/25 Keyphasor Module with appropriate probe and I/O is required .

    Q4: What is the difference between this model and the 330780-91-00?

    The 330780-91-00 is the standard version without agency approvals, suitable for non-hazardous area installations . The 330780-91-CN (this model) includes the China NEPSI and CCC certification package, making it suitable for hazardous area installations in China . Both share the same electrical performance, 9.0 m system length, and DIN-rail mounting.

    Q5: What are the typical applications for the 3300 XL 11 mm system?

    The 11 mm system is primarily used where greater linear measurement range is required compared to the 8 mm system, including: axial (thrust) position measurements on large turbines, ramp differential expansion on steam turbines, rod position and rod drop on reciprocating compressors, tachometer and zero speed measurements, and Keyphasor reference signals.

Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.