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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.
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.
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.
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.
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Amikon offers a wide range of components, products and services related to industrial automation. We have a large surplus of stocks and are also distributors of new products from a variety of quality manufacturers.
Technical specifications for 330878-51-00
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Product Model330878-51-00
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Product Parameters3300 XL 50 mm Proximitor Sensor
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Tariff Code8537101190
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Country of originUSA
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Place of shipmentXiamen, China
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In stock1 unit
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Estimated Shipping Size8x3.5x7cm
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ManufacturerBently Nevada
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Weight0.2 kg
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Total Length and Mounting Option5.0 meters (16.4 feet) systemlength, DIN mount
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Agency Approval OptionNo Approvals
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Outputresistance50 Ω
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Extension cablecapacitance69.9 pF/m (21.3 pF/ft)typical
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Probe TipMaterialPolyphenylene Sulfide(PPS)
Description
The Bently Nevada 330878-51-00 is a 3300XL 50mm Proximitor Sensor as the signal conditioning component of the 3300XL 50mm Proximity Transducer System. The 330878-51-00 provides a 0.394 V/mm (10 mV/mil) output that is identical to that of the 7200 and 50mm DE Integral systems, which allows customers to upgrade without requiring any changes in the monitor configuration. When upgrading from previous systems, every transducer system component must be replaced with 3300XL 50mm components, including the 330878-51-00.
The 330878-51-00 has the same advanced features as all 3300XL Proximitor Sensors. The thin design of the 330878-51-00 allows it to be mounted in either a high-density DIN-rail installation or a more traditional panel mount configuration. The improved RFI/EMI immunity of the 330878-51-00 allows it to achieve European CE mark approvals without any special mounting considerations. This RFI immunity prevents the transducer system of the 330878-51-00 from being adversely affected by nearby high-frequency radio signals.
The 330878-51-00 has the same advanced features as all 3300XL Proximitor Sensors. The thin design of the 330878-51-00 allows it to be mounted in either a high-density DIN-rail installation or a more traditional panel mount configuration. The improved RFI/EMI immunity of the 330878-51-00 allows it to achieve European CE mark approvals without any special mounting considerations. This RFI immunity prevents the transducer system of the 330878-51-00 from being adversely affected by nearby high-frequency radio signals.
Alternative Names
330878-51-OO
330878-5I-00
33087B-51-00
330B78-51-00
33O878-51-00
330878 51 00
330878 51 OO
330878 5I 00
33087B 51 00
330B78 51 00
330878-51-05
330878-51-CN
Information
Overview
Manuals
Application Notes
Product Applications
Probe Insertion & Mechanical Setup
Features:
- 0.394 V/mm (10 mV/mil) Output Identical to 7200 and 50mm DE Integral Systems
- Improved RFI/EMI Immunity for CE Mark Without Special Mounting
- SpringLoc Terminal Strips for Tool-Free Robust Field Wiring
- Wide Linear Range of 27.94 mm (1100 mils)
The primary application for the system using the 330878-51-00 is measuring differential expansion (DE) or rotor expansion (Rx) of large steam turbine generators. The differential expansion measurement is made by using two proximity transducers that observe a collar or ramp some distance from the thrust bearing. Typical mounting arrangements include two transducers observing the same side of a collar for ranges less than 27.9 mm, or two complementary input transducers observing opposite sides of a collar for ranges from 28 mm to 56 mm.
The 330878-51-00 Bently Nevada 3300 XL 50 mm Proximitor Sensor may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 330878-51-00 3300 XL 50 mm 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. All prices are shown in USD.
The physical packaging of the 330878-51-00 allows installation in high-density DIN-rail configurations. The mounting base of the 330878-51-00 provides electrical isolation and eliminates the need for separate isolator plates. The 330878-51-00 incorporates improved RFI/EMI immunity, allowing installation in fiberglass housings without adverse effects from nearby radio frequency signals. This immunity satisfies European CE mark approvals without requiring special shielded conduit or metallic housings.
The 330878-51-00 features SpringLoc terminal strips that require no special installation tools and facilitate faster, more robust field wiring connections. Power requirements for the 330878-51-00 are –17.5 VDC to –26 VDC without barriers at a maximum consumption of 12 mA. When used with intrinsic safety barriers, the 330878-51-00 operates from –23 VDC to –28 VDC. The supply sensitivity is less than 2 mV change in output voltage per volt change in input voltage. The output resistance is 50 Ω.
- Oil & Gas: Monitors compressors, pumps, and gas turbines
- Power Generation: Tracks vibration in steam and hydroelectric turbines
- Industrial Manufacturing: Protects rotating equipment in paper, mining, and water treatment
- Radial Vibration: Monitors bearings, detects rotor imbalance or shaft misalignment
- Axial Thrust: Measures rotor displacement to determine thrust bearing wear
This content has been produced using multiple sources.Amikon takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
Target Material: Ensure your target is a Bently Nevada AISI 4140 steel target (102 mm diameter or larger). Calibration changes if your target material differs.
Proximity Gap: The probe must be mechanically set within the sensor's linear range. For a 50 mm system, you will typically adjust the probe gap to the center of its linear range (often targeting roughly -10 Vdc to -12 Vdc on the gap voltage).
Clearance: Maintain at least 50 mm (2 inches) of clearance from high-voltage sources to prevent electromagnetic interference (EMI).
Technical notes
The 330878-51-00 incorporates SpringLoc terminal strips that require no special installation tools and facilitate faster, highly robust field wiring connections. The 330878-51-00 operates with a supply voltage of -17.5 Vdc to -26 Vdc and provides an output voltage range of -2 V to -18 Vdc. The 330878-51-00 delivers a linear range of 27.94 mm (1100 mils), which is the longest linear range of Bently Nevada's eddy current transducer line. This extended linear range makes the 330878-51-00 ideal for measuring the differential expansion (DE) or rotor expansion (RX) of large steam turbine generators.
FAQs
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What is the Bently Nevada 330878-51-00 used for?
+It is a key part of the 50 mm proximity probe system that uses eddy currents to measure the difference in growth rates between a turbine rotor and its machine stator (casing). This helps prevent catastrophic machine crashes by monitoring vital clearances. -
Can I replace the Proximitor Sensor or cables without recalibration?
+Yes, Bently Nevada's proximity systems (including the 3300 XL series) feature interchangeable components. However, replacements must use the identical model and configured system length. After installation, gap voltage and probe response should always be verified according to equipment commissioning procedures. -
What is the linear range of this 50 mm Transducer System?
+Because of its large diameter coil, this system offers the longest linear range in Bently Nevada's eddy current line: 27.9 mm (1100 mils) -
What specific applications use the 50 mm system?
+Its large 50 mm coil handles extreme distance measurements. It is ideal for measuring Differential Expansion (DE) or Rotor Expansion (RX) in large steam turbine generators.
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Disclaimer: Amikon Limited sells new and surplus products and develops channels for purchasing such products. Amikon Limited is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because Amikon Limited is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. Amikon Limited is not an authorized distributor, dealer, or representative of the products displayed on this website. All product names, trademarks, brands, and logos used on this website are the property of their respective owners. The description, explanation, or sale of products with these names, trademarks, brands, and logos is for identification purposes only and is not intended to indicate any association with or authorization from any rights holder.
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32D UNITS,GUOMAO BUILDING,NO 388 HUBIN SOUTH ROAD,SIMING DISTRICT,XIAMEN