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- Bently Nevada
- 330878-91-00
- Proximitor Sensor
- USA
- 70 mm x 40 mm x 40 mm
- 0.255kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
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Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
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Bently Nevada 330878-91-00 Proximity Sensor
Product Introduction
The Bently Nevada 330878-91-00 is a high-performance proximity sensor designed for precise measurement of shaft vibration and displacement in rotating machinery. Part of the 3300 XL series, this sensor utilizes eddy current technology to provide accurate, non-contact measurements, ensuring reliable monitoring of equipment health. It is particularly suited for applications where large measurement ranges are required, such as steam turbine generators.
Product Specifications
| Parameter | Specification |
|---|---|
| Model | 330878-91-00 |
| Series | 3300 XL |
| Probe Diameter | 50 mm |
| Measurement Range | Up to 27.9 mm (1100 mils) |
| Sensitivity | Approximately 1.0 V/mm |
| Operating Voltage | -17.5 VDC to -26 VDC |
| Current Draw | Max 12 mA |
| Output Impedance | 50 Ohms |
| Operating Temperature | -35°C to +85°C |
| Storage Temperature | -51°C to +100°C |
| Housing Material | Aluminum Alloy |
| Dimensions (L x W x H) | 70 mm x 40 mm x 40 mm |
| Weight | 0.255 kg |
| Mounting Options | DIN Rail |
| Certifications | CE, CSA, ATEX, IECEx (depending on variant) |
Applications
The 330878-91-00 sensor is ideal for:
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Monitoring differential expansion (DE) or rotor expansion (RX) in steam turbine generators.
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Measuring shaft vibration and displacement in large rotating machinery.
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Providing early detection of mechanical faults to prevent unplanned downtime.
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Integrating with condition monitoring systems for comprehensive equipment health analysis.
Product Advantages
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Extended Measurement Range: With a maximum linear range of 27.9 mm, it is suitable for large machinery applications.
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High Sensitivity: Provides precise measurements to detect early signs of equipment issues.
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Robust Design: Built to withstand harsh industrial environments, ensuring long-term reliability.
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Wide Temperature Range: Operates effectively in temperatures from -35°C to +85°C.
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Easy Integration: Compatible with the 3300 XL monitoring system, facilitating seamless system upgrades.
Related or Same-Series Model Recommendations
| Model | Probe Diameter | Measurement Range | Mounting Type | Certification | Notes |
|---|---|---|---|---|---|
| 330878-50-00 | 12.7 mm | 0.25 – 12.7 mm | Panel Mount | CE | Standard 5-meter cable version |
| 330878-90-05 | 12.7 mm | 0.25 – 12.7 mm | Panel Mount | CE | 9-meter cable for longer distances |
| 330878-91-05 | 12.7 mm | 0.25 – 12.7 mm | DIN Rail | CE | DIN rail mounting with 9-meter cable |
| 330878-50-05 | 12.7 mm | 0.25 – 12.7 mm | Panel Mount | None | Non-certified, cost-effective option |
| 330878-91-00 | 12.7 mm | 0.25 – 12.7 mm | DIN Rail | None | DIN rail non-certified version |
Popular Models from the Same Brand
| Model | Type | Application | Certification | Notes |
|---|---|---|---|---|
| 330105-02-12-05-02-00 | Probe Module | Shaft vibration and displacement | CE | Compatible with 3300 XL system |
| 3500/05-01-01-00-00 | Monitoring Module | Multi-channel vibration monitoring | CE | Centralized machine condition monitoring |
| 9200-03-05-10-00 | Smart Sensor | Remote diagnostics and IIoT | CE | Digital communication support |
| 330500 Velocity Sensor | Velocity Sensor | Vibration velocity measurement | CE | Rugged, industrial-grade velocity sensor |
| 330450-10-05 | Probe Assembly | Shaft position sensing | CE | Compact design for restricted spaces |
FAQ (Q&A)
Q1: What does the 330878-91-00 measure?
A1: It measures shaft vibration and displacement via eddy-current proximity sensing.
Q2: Is the sensor suitable for hazardous areas?
A2: Certain versions come with ATEX and IECEx certifications for explosive atmospheres.
Q3: What is the probe diameter?
A3: The probe diameter is 50 mm, suitable for large machinery applications.
Q4: What is the operating temperature range?
A4: The sensor operates reliably between -35°C and +85°C.
Q5: How does it connect to the monitoring system?
A5: It is compatible with the 3300 XL series monitoring system and connects via shielded cables.
Q6: What mounting options are available?
A6: DIN rail mounting option is available for this model.
Q7: Can the cable length be customized?
A7: Yes, typical cable lengths are 9 meters, but custom lengths are available.
Q8: What output does the sensor provide?
A8: It outputs a voltage proportional to shaft displacement with an output impedance of 50 Ohms.
Q9: How resistant is the sensor to electromagnetic interference?
A9: It is designed to withstand EMI/RFI, ensuring stable signals in noisy environments.
Q10: What are the physical dimensions and weight?
A10: Dimensions are approximately 70 mm x 40 mm x 40 mm, and weight is about 0.255 kg.
Authenticity guarantee
All product specifications are original and authentic imported products. We have an annual sales volume of 300 million yuan, and we only produce original and authentic products. All customers who cooperate with us directly online can enjoy low discounts.
Free warehouse
We have a complete range of product models, 80% of conventional models are in stock, and we have established channels in Asia, Africa, North America, South America, and Europe, effectively shortening the order processing time and satisfying customers in a timely manner.
Technical Team
Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
Thoughtful after-sales service
24-hour after-sales service guarantee team, professional and standardized management service system.