Vibration Monitoring Solution – Bently Nevada 330425-02-05 | 3300 XL Series Accelerometer
Where This Product Is Used
The Bently Nevada 330425-02-05 Accelerometer Acceleration Transducer is engineered for high-reliability vibration measurement in critical rotating machinery environments. Typical deployment scenarios include:
- Gas & Steam Turbines – Casing vibration monitoring on power generation turbines where seismic/absolute vibration data is required by API 670 protection systems.
- Centrifugal Compressors – Bearing housing acceleration measurement on barrel and beam-style compressors in petrochemical and LNG plants.
- Electric Motors & Gearboxes – High-frequency structural vibration detection for predictive maintenance programs in steel mills and paper mills.
- Pumps & Fans – Casing-mounted vibration trending for balance and alignment diagnostics in water treatment and HVAC systems.
- Reciprocating Machinery – Shock and impact monitoring on reciprocating compressors and engines in upstream oil & gas applications.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 330425-02-05 |
| Brand | Bently Nevada (Baker Hughes) |
| Series | 3300 XL Accelerometer |
| Transducer Type | Piezoelectric Accelerometer (IEPE/ICP) |
| Measurement | Absolute Casing Vibration (Acceleration) |
| Sensitivity | 100 mV/g (nominal) |
| Frequency Range | 2 Hz to 10,000 Hz |
| Amplitude Range | 50 g peak |
| Resonant Frequency | 25 kHz min |
| Operating Temperature | -55C to +121C |
| Housing Material | 316L Stainless Steel |
| Connector | 2-pin MIL-C-5015 (integral) |
| Cable Length | 5 ft (1.5 m) per -05 suffix |
| Mounting | Stud mount (10-32 UNF) |
| Weight | Approx. 220 g (with cable) |
| Approvals | CE, RoHS compliant |
Why Engineers Specify This Model
- API 670 Compatible – Interfaces directly with Bently Nevada 3500 Series machinery protection systems, satisfying API 670 5th Edition casing vibration channel requirements without additional signal conditioning.
- Integral Cable Design – The -05 suffix denotes a factory-terminated 5 ft armored cable, eliminating field connector assembly errors and reducing installation time by up to 40%.
- Wide Temperature Tolerance – Rated to 121C continuous, suitable for hot bearing housings and turbine exhaust casings without thermal isolation pads.
- 316L Stainless Steel Housing – Corrosion-resistant construction withstands wash-down, steam, and aggressive process atmospheres common in refinery and chemical plant environments.
- Drop-in Replacement – Maintains dimensional and electrical compatibility with legacy 330425 series installations, enabling like-for-like swap without re-cabling or re-configuration.
Complete System Bill of Materials
For a complete Bently Nevada casing vibration monitoring channel, the following components are typically required:
- Accelerometer: 330425-02-05 (this item)
- Vibration Monitor: Bently Nevada 3500/42M or 3500/42E Module
- Rack: Bently Nevada 3500/05 Power Supply + 3500/01 Rack
- Extension Cable (if required): Bently Nevada 330130-xx-xx Armored Extension Cable
- Mounting Stud: 10-32 UNF stainless steel stud
- Conduit Fitting: 1/2 NPT explosion-proof fitting (for hazardous area installations)
Compliance and Industry Standards
- API 670 – Machinery Protection Systems (5th Edition) – Casing Vibration Channel
- ISO 10816 / ISO 20816 – Mechanical vibration evaluation of machines by measurements on non-rotating parts
- IEC 60529 IP67 – Ingress protection (dust-tight, temporary immersion)
- ATEX / IECEx – Standard model suitable for non-hazardous areas; consult factory for zone-rated variants
- CE Declaration of Conformity – EMC Directive 2014/30/EU; RoHS Directive 2011/65/EU
Quality Assurance and Sourcing
Konmask.com sources the Bently Nevada 330425-02-05 through authorized industrial distribution channels. Every unit shipped undergoes the following verification process:
- Visual inspection against OEM dimensional drawings
- Sensitivity verification at 100 Hz reference frequency
- Insulation resistance check (100 MOhm min at 500 VDC)
- Serialization and traceability documentation provided upon request
- Original manufacturer packaging preserved where available
We maintain stock of both new-surplus and factory-new units. Condition is clearly stated on each order confirmation. Certificates of conformance (CoC) and material test reports (MTR) available for critical applications.
How to Source This Part
Ready to order or need a formal quotation for your procurement team? Here is how to engage with Konmask:
- Add to Cart – For immediate purchase with standard lead time (1 to 5 business days for in-stock units).
- Request a Quote (RFQ) – Email [email protected] with your required quantity, delivery date, and any certification requirements.
- Bulk / Project Orders – Contact us for volume pricing on orders of 5 or more units. We support EPC contractors and OEM integrators with blanket order agreements.
- Expedite Requests – Same-day shipping available for in-stock units when ordered before 14:00 CST.
- Export and Cross-Border – We ship globally. HS Code 9031.80 applies. DDP (Delivered Duty Paid) terms available for select destinations.
Application-Specific FAQ
Q: Is the 330425-02-05 compatible with the Bently Nevada 3500/42M vibration monitor?
A: Yes. The 330425-02-05 outputs a standard IEPE (ICP) signal at 100 mV/g, which is directly compatible with the 3500/42M and 3500/42E accelerometer input channels. No additional signal conditioner is required.
Q: What does the -02-05 suffix mean?
A: In Bently Nevada ordering matrix, -02 designates the standard sensitivity range (100 mV/g) and -05 designates the integral cable length of 5 feet (approximately 1.5 m). Different cable lengths are available as separate part numbers.
Q: Can this accelerometer be used in a hazardous classified area?
A: The standard 330425-02-05 is not ATEX/IECEx certified. For Zone 1 or Zone 2 hazardous area installations, consult Konmask for the appropriate intrinsically safe or explosion-proof variant.
Q: What is the difference between the 330425 and 330430 series?
A: The 330425 series uses a 2-pin MIL connector with integral cable, while the 330430 series features a top-exit connector for conduit installations. Both share the same sensing element and sensitivity specification.
Q: How do I mount the 330425-02-05 for optimal high-frequency response?
A: Stud mounting (10-32 UNF, torqued to 2.8 Nm) provides the best frequency response up to 10 kHz. Adhesive or magnetic mounting will reduce the usable frequency range and is not recommended for permanent installations.
Q: What is the warranty on this product?
A: Konmask provides a 12-month warranty against manufacturing defects on all new-surplus and factory-new units. Warranty claims are processed within 5 business days of receipt of the returned item.
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