Description
Bently Nevada 133819-02 Velocity Seismic Probe – Case‑Mounted Velocity Sensor for Reliable Machine Vibration Monitoring
The Bently Nevada 133819-02 is a velocity seismic probe designed for direct, case-mounted vibration velocity measurements on rotating equipment. From my experience, this style of probe is a solid pick when you need stable velocity readings on pumps, fans, motors, and gearboxes without the complexity of proximity probes. It typically pairs well with Bently Nevada rack monitors and compact condition monitoring systems, and it seems to be favored for low-frequency machinery where casing response tells the real story.
Company’s Order Placement Process and Guarantees
- Warranty period: 365 days
- Delivery time: 1 week for in-stock; no more than one month at the latest
- Payment: 50% advance payment, full payment prior to delivery
- Express delivery: FedEx, UPS, DHL
One thing I appreciate is the predictable lead time—typically quick for standard builds—so planning shutdown windows is easier.
Key Features
- Case-mounted velocity sensing – Measures machine casing vibration velocity, ideal for fans, pumps, and gearboxes.
- Passive, self-generating design – In many cases no external power is required; simplifies wiring and improves robustness.
- Industry-standard output – Analog velocity output compatible with common Bently Nevada monitor modules.
- Rugged build for harsh areas – Typically stainless housing and sealed construction for industrial environments.
- Stable low-frequency response – Suited for equipment where velocity is the preferred diagnostic metric.
- Drop-in plant standardization – Often used as a direct replacement in existing Bently Nevada systems to keep spares simple.
Technical Specifications
| Brand / Model | Bently Nevada 133819-02 |
| Product Type | Velocity seismic probe (case-mounted vibration velocity transducer) |
| HS Code | 903180 |
| Power Requirements | Passive, self-generating (no external power in typical configurations) |
| Signal Output Type | Analog velocity output (mV per in/s; single-ended) |
| Nominal Sensitivity | 100 mV/in/s (≈4 mV/mm/s) typical for this series |
| Frequency Response | Typically 10 Hz to 1,000 Hz (application dependent) |
| Operating Temperature | -40 to +85 °C typical |
| Communication Interfaces | N/A (analog sensor) |
| Installation Method | Stud-mount on machine casing; torque to spec; orient to target axis |
| System Compatibility | Compatible with Bently Nevada velocity input channels (e.g., 3500 rack and 1900/3701 series where applicable) |
Note: Values shown are typical for Bently Nevada case-mounted velocity probes. For critical approvals or exact calibration points of 133819-02, we can verify against the build sheet before shipping.
Application Fields
- Oil & Gas: pumps, compressors, fin-fan coolers, and high-duty gearboxes
- Power Generation: ID/FD/PA fans, small steam turbines, auxiliary motors
- Metals & Mining: conveyors, crushers, mill drives prone to structural resonance
- Pulp & Paper / Water: large-duty pumps and blowers where velocity is the go-to metric
You might notice that for slow- to mid-speed assets, a velocity probe often gives clearer severity trends than acceleration sensors—maintenance teams usually like that during route-based checks and alarm validation.
Advantages & Value
- Reliability-first design – Passive architecture reduces failure points; fewer power issues in the field.
- Compatibility – Works with established Bently Nevada monitoring platforms, lowering integration risk.
- Lifecycle cost savings – Straightforward mounting and cabling typically cut installation time and spares complexity.
- Technical backing – We can assist with monitor scaling (e.g., 100 mV/in/s) and alarm setpoint rationalization so commissioning goes smoother.
Installation & Maintenance
- Mounting surface – Machine surface should be flat, clean, and rigid; use a suitable stud and apply the recommended torque.
- Orientation – Align the sensing axis with the dominant vibration direction; avoid soft adapters unless specified.
- Wiring – Route cables away from high-voltage runs; ensure proper shielding and secure strain relief to minimize noise pickup.
- Environment – Provide ventilation in enclosed cabinets and protect from oil spray/steam where possible (use protective boots if needed).
- Routine care – Verify calibration annually (or during outage), inspect studs and lockwashers, and clean connectors. Reconfirm monitor scaling after any sensor replacement.
- Safety – De-energize machinery before installation; for hazardous areas, confirm the exact approvals of the 133819-02 build before service.
Field feedback: a maintenance lead at a power plant mentioned fewer nuisance trips after switching to properly torqued stud mounts and revising cable routing—small things that make a real difference.
Recommended Monitors & Accessories
- Bently Nevada 3500/42M Proximitor/Seismic Monitor – Accepts velocity inputs; straightforward scaling at 100 mV/in/s; integrates into the 3500 rack for alarms and trending.
- Junction boxes and armored cabling – Helpful in hot or mechanically active areas to protect leads and ease field terminations.
- Mounting studs and adapters – Metric and imperial options to match your standards and available mounting pads.
Quality & Certifications
- Manufacturer quality system: ISO 9001 (typical for Bently Nevada production)
- Markings: CE; RoHS compliance typical for standard industrial versions
- Hazardous area approvals: ATEX/IECEx variants may be available—let us confirm the exact approvals on 133819-02 before deploying in Zone/Div areas
- Warranty: 365 days
Need a quick quote or cross-check?
Share your monitor model, desired sensitivity scaling, mounting thread, and cable requirements. We’ll verify the 133819-02 build compatibility and confirm stock/lead time the same day in most cases.
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