Bently Nevada 190501-18-00-CN – Piezoelectric Velocity Transducer | Velomitor CT / 3500 Series Condition Monitoring Platform
Engineering Background: The Bently Nevada 190501-18-00-CN is a Velomitor CT (Compliant Technology) piezoelectric velocity transducer engineered for continuous, high-fidelity vibration monitoring of rotating and reciprocating machinery. Developed under Baker Hughes’ Bently Nevada product line — the global benchmark for machinery protection systems — this transducer integrates directly with the 3500 Series rack-based monitoring platform and compatible Bently Nevada data acquisition systems.
Product Positioning: Designed for procurement engineers and reliability teams operating in oil & gas, power generation, petrochemical, and heavy industrial environments. The 190501-18-00-CN delivers broadband velocity output with integrated signal conditioning, eliminating the need for external integrators and reducing panel wiring complexity. It is the preferred drop-in replacement for legacy velocity sensors in 3500 Series installations requiring CN (China) regional compliance markings.
Complete Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 190501-18-00-CN |
| Product Family | Velomitor CT (Compliant Technology) |
| Platform Compatibility | Bently Nevada 3500 Series, 3300 Series |
| Sensor Type | Piezoelectric Velocity Transducer |
| Measurement Range | 0 to 50 in/s pk (0 to 1270 mm/s pk) |
| Frequency Response | 2 Hz to 2000 Hz (±3 dB) |
| Sensitivity | 100 mV/in/s (3.94 mV/mm/s) |
| Output Signal | Velocity (integrated, AC coupled) |
| Supply Voltage | 18–30 VDC (loop powered) |
| Output Bias Voltage | 10–12 VDC nominal |
| Temperature Range (Operating) | -40°C to +121°C (-40°F to +250°F) |
| Connector Type | 2-pin MIL-C-5015 (standard) |
| Cable Length | 18 ft (5.5 m) integral cable |
| Housing Material | 316 Stainless Steel |
| Ingress Protection | IP67 |
| Weight | Approx. 380 g |
| Compliance / Marking | CN (China Regional), CE, RoHS |
| Manufacturer | Bently Nevada (Baker Hughes) |
Proven Application Environments
- Oil & Gas: Compressor trains, gas turbines, centrifugal pumps — continuous bearing vibration monitoring per API 670
- Power Generation: Steam turbines, generators, boiler feed pumps — integrated with 3500/42M velocity monitor modules
- Petrochemical: Reactor agitators, extruders, blowers — broadband velocity detection for early fault identification
- Marine & Offshore: Diesel engine monitoring, propulsion shaft vibration — IP67 rated for harsh environments
- Heavy Industry: Rolling mills, paper machines, mining conveyors — high-temperature and high-vibration installations
Engineering Advantages
- Compliant Technology (CT) Design: Internal mechanical compliance isolates the sensing element from mounting surface resonances, delivering flat frequency response without external isolation pads
- Integrated Signal Conditioning: On-board ASIC electronics provide velocity output directly — no external integrator card required, reducing BOM cost and panel space
- 316 SS Hermetic Housing: Fully welded stainless steel construction withstands aggressive process fluids, steam washdown, and corrosive atmospheres
- Wide Temperature Tolerance: Rated to +121°C continuous — suitable for hot bearing housings and turbine casings without thermal derating
- Direct 3500 Series Compatibility: Plug-and-play with 3500/42M, 3500/45, and 3500/46M monitor modules; no firmware changes required
- CN Regional Compliance: Pre-certified for Chinese customs and industrial safety regulations, streamlining import documentation
System Architecture & Signal Flow
The 190501-18-00-CN operates as a 2-wire, loop-powered device within the Bently Nevada 3500 architecture:
- Transducer: 190501-18-00-CN mounts directly to machine casing via threaded stud or magnetic base adapter
- Field Wiring: 18 ft integral cable routes to junction box or directly to 3500 rack I/O terminal block
- Monitor Module: 3500/42M Velocity Monitor processes the 100 mV/in/s signal, applies alert/danger setpoints
- Rack Communication: 3500 rack outputs to DCS/SCADA via Modbus, Profibus, or hardwired relay contacts
- Data Historian: System 1 Evolution software archives trend data for predictive maintenance analysis
Sourcing & Quality Verification
- All units sourced through authorized Bently Nevada / Baker Hughes distribution channels or verified surplus with full traceability documentation
- Each unit inspected for: physical integrity, connector condition, cable jacket continuity, and label authenticity
- Serialization and date codes verified against Bently Nevada manufacturing records where available
- Functional test reports available upon request for critical applications
- Konmask.com maintains ISO-compliant incoming inspection records for all automation components
Procurement Process
- Inquiry: Submit RFQ via product page or email support@konmask.com with quantity and delivery requirements
- Quotation: Formal quotation issued within 1 business day including lead time, unit price, and shipping options
- Order Confirmation: Purchase order accepted via email, Alibaba Trade Assurance, or Shopify checkout
- Inspection & Packaging: Anti-static packaging with desiccant; original manufacturer packaging preserved where available
- Shipping: DHL Express / FedEx International Priority standard; sea freight available for bulk orders
- Documentation: Commercial invoice, packing list, certificate of origin, and test report included
Technical FAQ
Q: Is the 190501-18-00-CN compatible with the Bently Nevada 3300 Series?
A: Yes. The Velomitor CT is compatible with 3300 Series monitors configured for velocity input. Verify monitor module input impedance matches transducer output specifications before installation.
Q: What is the difference between 190501-18-00 and 190501-18-00-CN?
A: The “-CN” suffix denotes China regional compliance markings and documentation package. Electrically and mechanically identical to the standard -00 variant.
Q: Can this transducer replace a seismic (geophone) velocity sensor?
A: The Velomitor CT uses piezoelectric technology with active electronics, not a passive geophone coil. It provides superior high-frequency response and temperature stability but requires loop power (18–30 VDC). Verify your monitor module supports powered velocity inputs.
Q: What mounting orientation is required?
A: The 190501-18-00-CN is orientation-independent for horizontal and vertical mounting. For overhead (inverted) mounting, consult Bently Nevada installation guidelines for cable strain relief requirements.
Q: Do you provide calibration certificates?
A: Factory calibration data is available for new units. For surplus units, third-party calibration services can be arranged upon request.
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