Excellent PLC
Bently Nevada 84145-01 Product Introduction
The Bently Nevada 84145-01 is a high-performance proximity transducer designed to accurately measure shaft displacement and vibration in rotating machinery. Built on decades of field-proven technology, it serves as a critical part of machinery protection and condition monitoring systems, especially in industries such as oil & gas, power generation, petrochemicals, and more.
With robust design and reliable performance, the 84145-01 helps ensure the safety, efficiency, and longevity of expensive machinery assets by providing precise, real-time data about shaft position and dynamic vibration. Its compact design allows for easier installation in tight spaces without sacrificing measurement accuracy.
Product Technical Specifications
| Parameter | Specification |
|---|---|
| Model | 84145-01 |
| Measurement Range | 0 to 2 mm (0 to 80 mils) |
| Sensitivity | 7.87 mV/μm (200 mV/mil) |
| Dimension | 51x 102x 229mm |
| Weight | 0.35 kg |
| Operating Temperature | –35 °C to +175 °C (–31 °F to +347 °F) |
| Storage Temperature | –40 °C to +200 °C (–40 °F to +392 °F) |
| Output Signal | Voltage proportional to target displacement |
| Power Supply | ±15 VDC from monitoring system |
| Housing Material | Stainless steel |
| Insulation Resistance | > 100 MΩ at 500 VDC |
Product Applications
The Bently Nevada 84145-01 is widely used in:
-
Large rotating machinery such as turbines, compressors, pumps, and motors
-
Condition monitoring systems for predictive maintenance
-
Vibration monitoring and diagnostics in industrial facilities
-
Machinery protection systems to prevent critical failures
-
Measurement of shaft axial position, radial vibration, and eccentricity
-
Monitoring of slow-rolling or standstill machinery for thermal growth and alignment
Its adaptability and high accuracy make it an ideal choice for demanding industrial environments.
Product Advantages
-
High Measurement Accuracy: Delivers precise data essential for reliable machinery diagnostics.
-
Wide Operating Temperature Range: Suitable for harsh industrial environments.
-
Rugged Design: Built to withstand mechanical stress, thermal expansion, and vibration.
-
Easy Integration: Fully compatible with Bently Nevada monitoring systems and many third-party systems.
-
Customizable Cable Lengths: Enhances installation flexibility based on site requirements.
-
Long-Term Reliability: Proven durability in continuous operation over years.
-
Compact Size: Facilitates installation in constrained spaces.
-
Non-contact Measurement: Reduces wear and ensures stable readings over time.
FAQ (Frequently Asked Questions)
Q1: What does the Bently Nevada 84145-01 primarily measure?
A1: It measures shaft displacement and vibration, especially in critical rotating machinery.
Q2: Can the probe handle extreme temperatures?
A2: Yes, it operates reliably between –35 °C to +175 °C, suitable for many industrial settings.
Q3: Is it compatible only with Bently Nevada systems?
A3: While optimized for Bently Nevada systems, it can integrate with other systems that accept compatible voltage signals.
Q4: What industries typically use this sensor?
A4: Oil & gas, power generation, petrochemicals, and heavy industrial machinery sectors.
Q5: Does it require regular recalibration?
A5: Minimal recalibration is needed; regular inspections are recommended for critical machinery.
Q6: How does non-contact measurement benefit operations?
A6: It eliminates mechanical wear, leading to consistent accuracy over time.
Q7: Can cable lengths be customized?
A7: Yes, standard cables are typically 1 m, but custom lengths are available on request.
Q8: What is the output signal type?
A8: It outputs a voltage proportional to the measured displacement.
Q9: Is it suitable for slow-rolling equipment?
A9: Yes, it accurately measures thermal growth and shaft position even at low speeds.
Q10: What makes it different from general vibration sensors?
A10: It offers precise proximity (displacement) measurement instead of just vibration velocity or acceleration, critical for protection systems.
Recommended Models from the Same Series or Related Models
| Model Number | Description |
|---|---|
| 84145-02 | Similar probe with extended linear range |
| 330180-50-00 | Standard proximity probe for vibration monitoring |
| 330130-040-00-00 | General purpose proximity probe |
| 330101-00-32-10-02-00 | Narrow tip probe for tight installation spaces |
| 330104-00-10-10-02-00 | Shorter probe for axial position monitoring |
| 84147-01 | Compatible sensor with similar performance range |
Popular Models from the Same Brand (Bently Nevada)
| Model Number | Type/Description | Measurement Range | Probe Diameter | Weight |
|---|---|---|---|---|
| 3300 XL 8mm | Proximity probe for general vibration monitoring | 0–2 mm | 8 mm | 100 g |
| 3300 XL NSv | Narrow side-view proximity probe | 0–2 mm | 5 mm | 90 g |
| 330130-040-00-00 | General purpose probe | 0–2 mm | 8 mm | 110 g |
| 330180-50-00 | Proximity probe with armored cable | 0–2 mm | 8 mm | 130 g |
| 3500/22M | Transient Data Interface module | – | – | 300 g |
| 3500/42M | Proximitor/Seismic monitor | – | – | 400 g |
