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The 330878-51-05 is a 3300 XL 50 mm Proximitor Sensor, serving as the electrical conversion core of the 3300 XL 50 mm Transducer System by Bently Nevada.
Non-Contact Precision Measurement
5.0-Meter System Length Calibration
DIN Rail Mounting
The system's large diameter coil provides a maximum linear range of 27.9 mm (1100 mils), making it ideal for measuring the differential expansion (DE) or rotor expansion (RX) of large steam turbine generators. This specific configuration (-51-05) features a 5.0-meter system length calibration with a dedicated DIN rail mount for fast cabinet installation, and includes multiple agency approvals for intrinsic safety compliance in hazardous industrial locations. Depending on machine requirements, it supports redundant configurations observing the same side of a collar for ranges under 27.9 mm, or complementary setups on opposite sides for expanded ranges up to 56 mm.
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 330878-51-05 Proximitor 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.
Thermal Power Generation
Measuring rotor differential expansion in high-pressure and low-pressure cylinders of supercritical steam turbines.
Nuclear Power Industry
Monitoring axial thermal displacement along the multi-meter shafting of main saturated steam turbines in nuclear power plants.
Hydroelectric Power Generation
Monitoring dynamic runout and large shaft vibration of thrust bearings in giant vertical hydro-generator units.
Petrochemical Refining
Monitoring axial rotor float of large charge gas compressors in ethylene plants.
Iron and Steel Metallurgy
Monitoring axial expansion of large blast furnace blower rotors in blast furnace Top-pressure Recovery Turbine (TRT) systems.
Cement Manufacturing
Monitoring axial float of high-speed shafts in main drive gearboxes of large clinker rotary kilns.
When using 330878-51-05, notice the calibration material and signal cable protection. The key involves ensuring the system strictly matches the 50mm probe and specific target material (usually AISI 4140 steel) to prevent linear thermal drift, and signal terminal wiring stays clear of high-voltage power cables. Also, the proximitor metal housing requires secure grounding, and the -24Vdc power supply must remain stable to avoid measurement waveform distortion.
Alternative Names
Alternative Names
330878 51 05330878-50-05330878-90-05330878-91-05
Technical notes
Technical notes
330878-51-05 is the electrical conversion core of the entire 3300 XL 50 mm proximity transducer system, specifically utilized for non-contact, extended-range displacement and condition monitoring of critical shafting in extreme industrial environments.
It is a Bently Nevada 3300 XL 50mm series Proximitor Sensor.
What is the main use of the 330878-51-05?
It is used for differential expansion measurement on large steam turbine generators.
How to use the 330878-51-05?
Install it in a control panel, connect a 50mm probe cable to the input, and link the output to a monitoring rack.
What are the power requirements for the 330878-51-05?
It typically requires a nominal -24 Vdc power supply.
Do you offer global delivery services?
Yes. We ship globally, and we are able to quickly deliver parts globally to any corner of the world. Unless otherwise specified, we will ship your order via (DHL). We can also ship through FedEx, UPS, and TNT. We can also use your account.
How many parts do you have in stock?
We have an extensive stock base consisting of ten thousands of new and discontinued automation parts including those from leading manufacturers such as:Control Systems (DCS, PLC, CNC) ,Panel Controllers,HMI and Display Panels,Drives,Encoders and Resolvers,Power Supplies.
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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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