Bently Nevada 21504-00-32-10-02 NSv Proximity Transducer | Replacement, Equivalent & Selection Guide
The Bently Nevada 21504-00-32-10-02 is a high-precision NSv Series Proximity Transducer designed for non-contact vibration and position measurement in rotating machinery monitoring systems. Engineered to integrate seamlessly with Bently Nevada 3300 and 3500 series monitoring platforms, this eddy-current transducer delivers reliable, continuous measurement in demanding industrial environments.
Technical Specifications
- Part Number: 21504-00-32-10-02
- Series: NSv (Non-contact, Shaft-vibration)
- Manufacturer: Bently Nevada (Baker Hughes)
- Sensing Technology: Eddy Current (Non-contact)
- Measurement Type: Radial vibration, axial position, differential expansion
- Output Signal: -24 VDC nominal (standard Bently Nevada output)
- Cable Length: 32 inches (approx. 813 mm) — encoded in part number suffix
- Thread Size: 10-32 UNF
- Target Material Compatibility: Steel, iron, and other ferromagnetic/conductive metals
- Operating Temperature: -35°C to +177°C
- IP Rating: IP67 (dust-tight and water-resistant)
- Connector Type: 2-pin MIL-spec
- Compatible Monitor Systems: Bently Nevada 3300 XL, 3500 Series
Compatible Replacement & Equivalent Models
When sourcing a replacement for the 21504-00-32-10-02, the following models offer functional equivalence or direct drop-in compatibility:
- Bently Nevada 21504-00-32-10-01 — Same series, alternate connector variant
- Bently Nevada 21504-00-05-10-02 — Shorter cable (5-inch) variant, same sensing head
- Bently Nevada 21504-00-50-10-02 — Longer cable (50-inch) variant for extended reach
- Bently Nevada 330101-00-30-10-02-00 — 3300 XL 8mm standard proximity transducer (functional equivalent for most 3300/3500 applications)
- Bently Nevada 330130-040-00-00 — 3300 XL 11mm proximity transducer (higher sensitivity alternative)
- Epro PR6423/010-040 — Third-party equivalent eddy-current transducer, compatible with Bently Nevada monitors
- Metrix ST5484E — Alternative proximity transducer for vibration monitoring, verify signal compatibility before substitution
Note: Always verify cable length, thread size, and system compatibility before ordering a replacement. Contact support@konmask.com for cross-reference assistance.
Why Choose the Original Model
- Factory-calibrated: Pre-calibrated to Bently Nevada system specifications — no field adjustment required
- Guaranteed signal compatibility: Designed to output the exact -24 VDC bias voltage expected by 3300/3500 monitors
- Proven reliability: Widely deployed in power generation, oil & gas, and petrochemical industries for decades
- OEM traceability: Full manufacturer documentation and certification available
- Minimized downtime risk: Drop-in replacement with zero reconfiguration of existing monitor racks
Typical Applications
- Steam and gas turbine shaft vibration monitoring
- Centrifugal compressor radial and axial position measurement
- Pump and motor bearing vibration surveillance
- Differential expansion monitoring in power plant turbines
- Rotating machinery protection systems in oil & gas facilities
- Predictive maintenance programs requiring continuous vibration data
System Compatibility
- Bently Nevada 3300 XL Series — Direct compatible (primary platform)
- Bently Nevada 3500 Series — Compatible with appropriate I/O module
- Bently Nevada 1900/65A — Compatible for general machinery protection
- Epro MMS 6000 Series — Compatible with signal conditioning adapter
- GE System 1 Software — Full data integration supported
Selection Guide
Use the table below to decode the 21504-00-32-10-02 part number and select the correct variant for your application:
- 21504 — NSv Proximity Transducer base model
- 00 — Standard configuration
- 32 — Cable length: 32 inches
- 10 — Thread: 10-32 UNF
- 02 — Connector type: 2-pin
How to select the right model:
- Measure the required cable length from transducer tip to junction box or monitor rack
- Confirm thread size matches your existing probe mount (10-32 UNF is most common)
- Verify connector type matches your extension cable or proximitor input
- Check target material — eddy-current transducers require conductive (non-ferrous or ferrous) shaft material
- Confirm monitor system model to ensure signal range compatibility
Quality Assurance & Sourcing
- All units sourced from authorized distributors or verified surplus channels
- Each unit inspected and tested prior to shipment
- Certificates of conformance (CoC) available upon request
- Traceability documentation provided for critical applications
- Secure packaging to prevent ESD and mechanical damage during transit
How to Order
- Online: Add to cart directly on this page
- Email: support@konmask.com — include your part number, quantity, and required delivery date
- Phone/WhatsApp: +0086 19859288691
- Lead Time: In-stock items ship within 1–3 business days; special orders 5–15 business days
- Payment: T/T, PayPal, credit card, and trade terms available for qualified buyers
Replacement & Compatibility FAQ
Q: Can I use a 330101 series transducer as a replacement for the 21504-00-32-10-02?
A: In many 3300/3500 system applications, yes — but verify cable length and connector type. The 330101 uses a different thread pitch (8mm metric vs. 10-32 UNF). A thread adapter may be required.
Q: Is the 21504-00-32-10-02 compatible with the Bently Nevada 3500/42M monitor?
A: Yes, when used with the appropriate proximitor/extension cable. Confirm the full loop (transducer + extension cable + proximitor) matches the 3500/42M input specifications.
Q: What is the difference between NSv and standard 3300 XL proximity transducers?
A: NSv transducers are optimized for smaller shaft diameters and tighter installation spaces. They share the same signal output standard but differ in physical form factor and sensitivity range.
Q: Do you supply the matching extension cable and proximitor?
A: Yes. Contact us with your full system configuration and we will quote the complete transducer loop assembly.
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