BENTLY NEVADA 330980-51-CN – NSv Proximitor Sensor | Bently Nevada 3300 XL Series
Engineering Background: In high-speed rotating machinery — turbines, compressors, pumps, and generators — shaft vibration and position data are not optional metrics. They are the last line of defense against catastrophic mechanical failure. When a proximitor sensor fails or goes uncalibrated, the entire condition monitoring chain collapses: vibration signals become unreliable, protection systems lose their reference, and maintenance engineers are left flying blind at the worst possible moment. The BENTLY NEVADA 330980-51-CN NSv Proximitor Sensor is the precision signal conditioning unit that converts raw eddy-current probe signals into the clean, calibrated voltage outputs that your monitoring system depends on.
Product Positioning: The 330980-51-CN is part of Bently Nevada’s industry-defining 3300 XL Series proximity transducer system — the global standard for machinery protection in oil & gas, power generation, and heavy process industries. This NSv (Non-Standard voltage) variant is engineered for installations requiring specific output voltage ranges, making it the preferred choice for integration with legacy DCS/PLC systems and Bently Nevada 3500 Series rack-based monitoring platforms. Trusted by plant engineers across six continents, the 3300 XL Series has set the benchmark for eddy-current measurement reliability for decades.
Complete Technical Specifications
- Part Number: 330980-51-CN
- Manufacturer: Bently Nevada (Baker Hughes)
- Series: 3300 XL NSv Proximitor Sensor
- Measurement Principle: Eddy-current (non-contact)
- Output Signal: Voltage proportional to gap distance
- Compatible Probe Series: 3300 XL 8mm / 11mm proximity probes
- Supply Voltage: -24 VDC (nominal)
- Operating Temperature: -35°C to +85°C
- Enclosure: Epoxy-sealed, suitable for industrial environments
- Connector: Standard BNC / MIL-spec per configuration
- Weight: Approx. 500 g (as shipped)
- Compliance: CE, designed to API 670 machinery protection standards
- SKU / Order Reference: 330980-51-CN
Note: All specifications are based on published Bently Nevada documentation. Konmask.com does not fabricate or alter manufacturer specifications.
Proven Application Environments
- Oil & Gas: Upstream compressor trains, LNG liquefaction turbines, pipeline booster stations
- Power Generation: Steam turbine shaft monitoring, gas turbine bearing protection, hydro generator runout measurement
- Petrochemical & Refining: Reactor feed pumps, cracked gas compressors, FCC unit blowers
- Marine & Offshore: Propulsion shaft monitoring, offshore platform rotating equipment
- Pulp & Paper / Mining: High-load fan and pump protection systems
- General Heavy Industry: Any API 670-compliant machinery protection installation requiring eddy-current proximity measurement
Engineering Advantages
- Non-Contact Measurement: Zero mechanical wear — the sensor never touches the shaft, ensuring indefinite service life under normal conditions
- High Linearity: Exceptional output linearity across the full measurement gap range, critical for accurate vibration amplitude and DC gap readings
- NSv Output Flexibility: Non-standard voltage output range enables direct compatibility with a wider range of monitoring cards and legacy rack systems
- Robust Industrial Sealing: Epoxy-potted electronics resist moisture, vibration, and chemical exposure in harsh plant environments
- API 670 Alignment: Designed and tested to meet the requirements of the industry’s foremost machinery protection standard
- Plug-and-Play with 3500 Rack: Seamless integration with Bently Nevada 3500 Series monitoring and protection racks
System Architecture & Signal Flow
The 330980-51-CN operates as the signal conditioning stage in a three-component eddy-current measurement chain:
- Proximity Probe (3300 XL 8mm/11mm) — Mounted adjacent to the rotating shaft; generates a high-frequency electromagnetic field
- Extension Cable — Transmits the raw probe signal from the machine casing to the proximitor (typically 5m or 9m standard lengths)
- 330980-51-CN NSv Proximitor Sensor — Conditions the raw signal into a calibrated DC voltage output; this output feeds directly into the monitoring rack or DCS input card
The proximitor is typically mounted in a junction box or instrument enclosure near the machine, with its output wired to a Bently Nevada 3500/40M or 3500/42M monitor card. The -CN suffix denotes the Chinese market configuration, ensuring compliance with local certification and labeling requirements.
Sourcing & Quality Verification
- Authentic Parts: Konmask.com sources 330980-51-CN units through verified industrial supply channels. Each unit is inspected upon receipt.
- Physical Inspection: Label integrity, connector condition, and housing seal are verified before dispatch
- Traceability: Batch and serial documentation available upon request for critical plant applications
- Packaging: Shipped in anti-static protective packaging with original manufacturer labeling preserved
- Warranty Support: Defective units are subject to our return and replacement policy — contact us within 30 days of receipt
Procurement Process
- Submit Inquiry: Send your part number (330980-51-CN), required quantity, and delivery timeline via our contact form or email
- Quotation: Our technical team will respond with pricing, lead time, and stock availability within 1 business day
- Order Confirmation: Confirm the order with your PO or payment arrangement
- Inspection & Dispatch: Unit is inspected, packaged, and shipped with tracking information provided
- After-Sales Support: Our engineers are available for installation guidance and compatibility questions post-delivery
📧 support@konmask.com | 📞 +0086 19859288691
Technical FAQ
- Q: What is the difference between the standard 330980-51 and the 330980-51-CN?
- A: The -CN suffix designates the Chinese market variant, which may include localized certification markings and labeling. Electrically and functionally, it is equivalent to the standard international version for use with 3300 XL probe systems.
- Q: Can the 330980-51-CN be used with 3300 XL 5mm probes?
- A: No. The 330980-51-CN is calibrated for use with 3300 XL 8mm or 11mm proximity probes. Using it with a different probe diameter will result in incorrect scale factor and inaccurate readings.
- Q: What monitoring rack is this proximitor compatible with?
- A: It is designed for use with Bently Nevada 3500 Series rack monitors, including the 3500/40M and 3500/42M vibration monitor cards. It can also interface with third-party systems accepting standard voltage inputs.
- Q: Is this part in stock?
- A: Stock availability varies. Please submit an inquiry with your required quantity and delivery date, and our team will confirm availability within 24 hours.
- Q: Do you provide a certificate of conformance or test report?
- A: Documentation availability depends on the specific unit sourced. Please specify your documentation requirements at the time of inquiry.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
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