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Bently Nevada 330850-90-05 3300 XL Proximitor Sensor with 25 mm Eddy Current Transducer System and 9.0 Metres System Length for Hazardous Areas
Bently Nevada 330850-90-05 3300 XL Proximitor Sensor with 25 mm Eddy Current Transducer System and 9.0 Metres System Length for Hazardous Areas
Bently Nevada 330850-90-05 3300 XL Proximitor Sensor with 25 mm Eddy Current Transducer System and 9.0 Metres System Length for Hazardous Areas
Bently Nevada 330850-90-05 3300 XL Proximitor Sensor with 25 mm Eddy Current Transducer System and 9.0 Metres System Length for Hazardous Areas
Bently Nevada 330850-90-05 3300 XL Proximitor Sensor with 25 mm Eddy Current Transducer System and 9.0 Metres System Length for Hazardous Areas
Bently Nevada 330850-90-05 3300 XL Proximitor Sensor with 25 mm Eddy Current Transducer System and 9.0 Metres System Length for Hazardous Areas
Bently Nevada 330850-90-05 3300 XL Proximitor Sensor with 25 mm Eddy Current Transducer System and 9.0 Metres System Length for Hazardous Areas
Bently Nevada 330850-90-05 3300 XL Proximitor Sensor with 25 mm Eddy Current Transducer System and 9.0 Metres System Length for Hazardous Areas
Specifications
Brand Name :
Bently Nevada
Model Number :
330850-90-05
Place of Origin :
USA
MOQ :
1
Price :
66USD
Payment Terms :
T/T
Supply Ability :
in stock
Delivery Time :
2-3 work days
Packaging Details :
Brand new and original
Model :
330850-90-05
Country of origin :
USA
Place of shipment :
Xiamen,China
Shipping :
TNT, DHL, FedEx, EMS, UPS
MOQ :
1 piece
Packaging :
Original new packaging
Description
Bently Nevada 330850-90-05 3300 XL 25 mm Proximitor Sensor
Bently Nevada 330850-90-05 3300 XL Proximitor Sensor with 25 mm Eddy Current Transducer System and 9.0 Metres System Length for Hazardous Areas
Bently Nevada 330850-90-05 3300 XL Proximitor Sensor with 25 mm Eddy Current Transducer System and 9.0 Metres System Length for Hazardous Areas
Technical Specifications
Category Specification Item Official Reference Data
Base Configuration Full Part Number 330850-90-05

Proximitor Sensor Base Model 330850 (Designed for 25 mm Eddy Current Transducer System)

System Length & Mounting -90 : 9.0 Metres System Length, Panel Mount

Agency Approval Option -05 : Multiple Approvals (Comprehensive hazardous area certifications)
Electrical Specs Input Voltage (Power) -17.5 Vdc to -26 Vdc (Max current 12 mA without safety barriers)

Impedance Output impedance 50 Ω

Supply Sensitivity Less than 2 mV change in output voltage per 1 V change in input voltage
Performance Specs Linear Range 12.7 mm (500 mils)

Linear Range Initial Gap Begins approx. 0.63 mm (25 mils) from the target surface

Nominal Scale Factor (ASF) 0.787 V/mm (20 mV/mil)

Frequency Response 0 to 2.7 kHz: Typical change is +0, -3 dB (with 305 m of field wiring)

Standard Target Material AISI 4140 Steel (Requires a flat surface 61 mm in diameter)
Environmental Limits Operating Temperature -51 °C to +100°C (-60°F to +212°F)

Storage Temperature -51°C to +105°C (-60°F to +221°F)

Relative Humidity 100% condensing, non-submerged (with properly protected connectors)
Physical Specs Housing Material A383 Aluminum (A380 alloy family)

Electrical Terminals SpringLoc strip terminals (Accepts 16 to 24 AWG wire)
Bently Nevada 330850-90-05 3300 XL Proximitor Sensor with 25 mm Eddy Current Transducer System and 9.0 Metres System Length for Hazardous Areas
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Email: sales@amikon.cn

WhatsApp: +86 180 2077 6792

Bently Nevada 330850-90-05 3300 XL Proximitor Sensor with 25 mm Eddy Current Transducer System and 9.0 Metres System Length for Hazardous Areas Bently Nevada 330850-90-05 3300 XL Proximitor Sensor with 25 mm Eddy Current Transducer System and 9.0 Metres System Length for Hazardous Areas
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Bently Nevada 330850-90-05 3300 XL Proximitor Sensor with 25 mm Eddy Current Transducer System and 9.0 Metres System Length for Hazardous Areas
Industrial Applications
  • Steam Turbine Supervisory Instrumentation (TSI)
    Deployed as a vital component in steam turbine monitoring systems to continuously track casing and rotor behaviors under extreme thermal and mechanical loads.
  • Critical Differential Expansion (DE) Monitoring
    Specially optimized for ramp differential expansion and complementary differential expansion measurements to prevent catastrophic axial contact between rotating blades and stationary turbine parts.
  • Shaft Displacement & Axial Position Measurement
    Utilized as a high-reliability non-contact proximity sensor to capture precise shaft displacement and axial drift in mid-to-large-scale industrial rotating machinery.
  • Power Plant & Petrochemical Instrumentation
    Acts as the front-end eddy current sensor interface for power plant instrumentation, delivering explosive-proof (-05 option) critical asset protection in hazardous areas.
  • Large Turbo-Generator & Compressor Protection
    Widely installed in massive centrifugal compressor monitoring and gas turbine protection loops to ensure early detection of mechanical anomalies and trigger emergency shutdown systems (ESD).
  • API 670 Compliant Machinery Protection System (MPS)
    Integrates seamlessly with the Bently Nevada 3500 rack system (such as the 3500/40M Proximitor Monitor) to build a fully certified, API 670 compliant machinery protection architecture.
Bently Nevada 330850-90-05 3300 XL Proximitor Sensor with 25 mm Eddy Current Transducer System and 9.0 Metres System Length for Hazardous Areas
Key Features
  • Engineered for 3300 XL 25mm System
    Fully compatible with Bently Nevada 3300 XL 25 mm Proximity Transducer Systems, acting as a high-precision eddy current probe driver for critical asset protection.
  • Advanced Differential Expansion Monitoring
    Specifically designed for steam turbine monitoring and generator shaft displacement measurement, effectively optimizing mid-to-large-scale industrial rotating machinery safety.
  • 9-Metre Integrated System Calibration
    Pre-calibrated for the -90 configuration option (9.0 metres system length), ensuring seamless signal matching with 25mm proximity probes and extension cables without field tuning.
  • Multiple Hazardous Area Approvals (-05)
    Comes with the -05 comprehensive global agency approval option, certified for explosive and dangerous atmospheres to support strict power plant instrumentation standards.
  • Excellent RFI/EMI Immunity & Signal Stability
    Features robust resistance to radio frequency and electromagnetic interference, outputting a stable Nominal Scale Factor of 0.787 V/mm (20 mV/mil).
  • Industrial-Grade DIN Rail & Panel Mount
    Built with a rugged A383 aluminum housing and high-density vibration-resistant SpringLoc strip terminals for quick, secure electrical wiring in tight cabinet spaces.
  • Seamless API 670 & 3500 System Integration
    Fully compliant with API 670 machinery protection system standards, working flawlessly as the front-end sensor interface for Bently Nevada 3500/40M Proximitor Monitors.
Bently Nevada 330850-90-05 3300 XL Proximitor Sensor with 25 mm Eddy Current Transducer System and 9.0 Metres System Length for Hazardous Areas
Frequently Asked Questions
Q1: What is the primary industrial function of the Bently Nevada 330850-90-05?
A1: The Bently Nevada 330850-90-05 / 3300 XL 25mm Proximitor Sensor is mainly used as a non-contact proximity sensor in heavy rotating machinery setups. In practice, you’ll see it working in shaft displacement measurement and also differential expansion monitor / ramp differential expansion applications. Usually it sits inside steam turbine monitoring systems or other large turbine trains. Basically, it behaves like an eddy current probe driver, feeding stable displacement signals into the TSI (turbine supervisory instrumentation) system so operators can catch movement trends early.
Q2: What do the specific suffixes "-90" and "-05" represent in the 330850-90-05 part number?
A2: The structure is more configuration-based than people think.
“-90” is generally tied to a 9m proximity sensor system length setup, commonly used for cabinet or panel mounting layouts.
“-05” points to multiple approvals, meaning the unit comes with broader certification coverage (typically ATEX, IECEx, CSA, depending on project requirements).
So in real applications, this version often ends up in hazardous area proximity sensor environments like power plants, oil & gas facilities, or other explosive-risk zones.
Q3: Which systems is the 330850-90-05 compatible with?
A3: The 330850 Proximitor Sensor is fully aligned with the Bently Nevada 3300 XL series and integrates smoothly into the 3500 rack system. A typical setup includes the 3500/40M Proximitor Monitor, a matched 3300 XL 25mm probe, and the corresponding extension cable to complete the full 9m proximity sensor system loop. It’s widely used in machinery protection system (MPS) architectures and turbine supervisory instrumentation (TSI), especially where API 670 compliant sensor standards are required.
Q4: What are the electrical and wiring specifications of the 330850-90-05 Proximitor Sensor?
A4: Power input is usually in the range of -17.5 Vdc to -26 Vdc, nothing unusual for this series. Output sensitivity is a standard 0.787 V/mm (20 mV/mil), consistent with the 3300 XL 25mm transducer family. Wiring uses SpringLoc terminal sensor design, supporting 16–24 AWG wire, and it’s generally easier during field installation, especially when vibration is a concern. The housing is A383 aluminum, and the unit has strong RFI/EMI immune proximity sensor performance, which helps in electrically noisy industrial environments like turbine halls or generator rooms.
Q5: What is the linear measurement range and target material requirement for the 330850-90-05?
A5: The sensor provides a linear range of 12.7 mm (500 mils), starting from roughly 0.63 mm (25 mils) from the target surface. For accurate calibration, the target isn’t flexible—you typically need a flat AISI 4140 steel surface, with at least a 61 mm diameter. In real-world industrial vibration analysis or generator differential expansion monitoring, this condition matters quite a bit. If the target isn’t right, readings can drift or lose stability, especially in high-speed rotating machinery setups.
Bently Nevada 330850-90-05 3300 XL Proximitor Sensor with 25 mm Eddy Current Transducer System and 9.0 Metres System Length for Hazardous Areas
Compatible Products
Product 1 Product 2
3500/72M 176449-08 3300/55
3500/62 163179-03 330780-50-00
3500/40M 140734-01 330180-50-00
330500-02-00 330130-045-00-00
135137-01 330180-51-05
149992-02 330130-040-00-05
147663-01 330103-00-05-05-02-00
3500/94 145988-01 330180-51-00
140482-01 330103-00-03-05-02-00
330500-00-20 330730-040-00-00
170133-090-00 330780-90-00
3500/32M 149986-02 330180-91-00
1900/65A 172323-01 3500/25 149369-01
330180-X0-05 3500/20 125744-02
125720-01 133827-01
125760-01 JNJ5300-08-03-000-060-10-00-00-03
125768-01 JNJ5300-08-045-00-00
128229-01 JNJ5300-08-06-005-030-05-00-00-03
128240-01 3500/90
133396-01 330130-080-00-00
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Bently Nevada 330850-90-05 3300 XL Proximitor Sensor with 25 mm Eddy Current Transducer System and 9.0 Metres System Length for Hazardous Areas

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Product Detail
Brand Name :
Bently Nevada
Model Number :
330850-90-05
Place of Origin :
USA
MOQ :
1
Price :
66USD
Payment Terms :
T/T
Contact Supplier
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Bently Nevada 330850-90-05 3300 XL Proximitor Sensor with 25 mm Eddy Current Transducer System and 9.0 Metres System Length for Hazardous Areas
Bently Nevada 330850-90-05 3300 XL Proximitor Sensor with 25 mm Eddy Current Transducer System and 9.0 Metres System Length for Hazardous Areas
Bently Nevada 330850-90-05 3300 XL Proximitor Sensor with 25 mm Eddy Current Transducer System and 9.0 Metres System Length for Hazardous Areas
Bently Nevada 330850-90-05 3300 XL Proximitor Sensor with 25 mm Eddy Current Transducer System and 9.0 Metres System Length for Hazardous Areas

AMIKON LIMITED

Verified Supplier
1 Years
fujian, xiamen
Since 2004
Business Type :
Trading Company
Main Products :
Bently Nevada, ABB PLC, GE Mark VIe Controller
Total Annual :
85682000-125000000
Employee Number :
70~80
Certification Level :
Verified Supplier
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