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- Bently Nevada
- 190501-09-00-01
- Velomitor CT Velocity Sensor
- USA
- 33 mm
- 0.297 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Bently Nevada 190501-09-00-01 Velomitor CT Velocity Sensor is a precision vibration sensor designed for monitoring low-speed rotating machinery. It is part of Bently Nevada’s Velomitor CT series, optimized for casing vibration velocity measurements, making it ideal for cooling towers, fans, and other slow-speed industrial equipment.
This sensor provides accurate and reliable vibration data, supporting predictive maintenance programs and helping prevent unexpected equipment failures by detecting imbalance, misalignment, or bearing wear early.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Bently Nevada |
| Model | 190501-09-00-01 |
| Product Type | Velomitor CT Velocity Sensor |
| Sensor Technology | Piezoelectric velocity transducer |
| Function | Machinery vibration velocity measurement |
| Mounting Hardware Option | 09 = Plate Stud, metric mounting |
| Connection Option | 00-01 = MIL-C-5015 connector interface |
| Sensor Diameter | 33 mm |
| Sensor Height | 82 mm |
| Weight | 0.297 kg |
| Case Material | 316L Stainless Steel |
| Operating Temperature | -40°C to +85°C |
| Storage Temperature | -40°C to +100°C |
| Sensitivity | 3.94 mV/mm/s (100 mV/in/s) ±5% |
| Frequency Response | 3.0 Hz to 900 Hz (±1 dB) |
| Extended Frequency Range | 1.5 Hz to 1.0 kHz (±3 dB) |
| Velocity Range | 63.5 mm/s peak (2.5 in/s peak) |
| Maximum Cable Length | 305 m (1000 ft) |
| Transverse Response | <5% of axial sensitivity |
| Application | Low-speed rotating machinery, cooling towers, fans, heat exchangers |
Function and Working Principle
The 190501-09-00-01 converts mechanical vibration velocity into an electrical signal that can be monitored continuously for machinery health assessment.
Main Functions
- Measures casing vibration velocity on rotating machinery
- Detects imbalance, misalignment, and bearing defects
- Provides early warning for preventive maintenance
- Integrates with condition monitoring and protection systems
- Supports machinery reliability programs
Working Principle
The Velomitor CT uses a piezoelectric sensing element that produces an electrical signal proportional to vibration velocity. Mounted on the machine casing, it continuously monitors vibration levels. The signal is transmitted to monitoring or protection systems, which analyze data for trends and alarms.
Its low-frequency response allows precise measurement of slow-speed machinery, such as cooling tower fans operating at low RPM.
Role in Machinery Condition Monitoring Systems
- Provides critical vibration monitoring for slow-speed rotating machinery
- Helps prevent unexpected equipment failures
- Supports predictive maintenance and machinery protection strategies
- Enables condition-based decision-making for operations and maintenance
- Ensures asset reliability and uptime
The sensor is typically integrated into Bently Nevada 3500 Series or other industrial monitoring systems.
Industrial Applications
- Cooling tower fan monitoring
- Air-cooled heat exchanger systems
- Industrial ventilation equipment
- Power generation machinery
- Petrochemical and chemical processing equipment
- Water treatment plants
- OEM rotating machinery systems
Its low-speed optimization makes it ideal for applications where traditional accelerometers cannot accurately measure low-frequency vibrations.
Installation and System Integration
- Mount directly to machine casing or bearing housing
- Use the designated plate stud mounting arrangement
- Ensure rigid mechanical coupling to machine surface
- Connect via MIL-C-5015 connector interface
- Follow grounding and cable shielding best practices
- Verify proper alignment and cable routing for reliable signal
Proper installation ensures accurate vibration measurements and consistent performance.
Compatible Components and Modules
- Bently Nevada 3500 Series Monitoring Systems
- Condition Monitoring Modules (CMMs)
- Vibration Data Acquisition Systems
- Machinery Protection Systems
- Signal Conditioning Modules
- Industrial junction boxes and cabling accessories
These components work together to form a complete machinery health monitoring system.
Recommended Alternative Models
| Model | Product Type | Key Feature | Recommended Application |
|---|---|---|---|
| 190501-09-00-01 | Velomitor CT Velocity Sensor | Low-frequency monitoring | Cooling tower and fan applications |
| 190501-08-00-00 | Velomitor CT Velocity Sensor | Plate stud mounting | Legacy systems and similar applications |
| 330500 Velomitor | Velocity Sensor | Standard industrial machinery | General vibration monitoring |
| 330400 Accelerometer | Acceleration Sensor | High-frequency measurement | Bearing fault detection |
| 330425 Accelerometer | Rugged industrial sensor | Harsh environments | Heavy machinery |
Key Advantages
- Optimized for slow-speed rotating equipment
- Accurate low-frequency velocity measurements
- Rugged 316L stainless steel construction
- Wide operating temperature range (-40°C to +85°C)
- Supports long cable lengths (up to 305 m)
- High reliability for continuous operation
- Supports predictive maintenance programs
- Reduces unplanned downtime and improves machine life
Technical FAQs
What is the primary function of the 190501-09-00-01?
It measures vibration velocity of slow-speed rotating machinery for condition monitoring.
Which machinery is it suitable for?
Cooling tower fans, heat exchangers, low-speed industrial fans, and similar rotating equipment.
Can it integrate with predictive maintenance systems?
Yes. It is commonly used with Bently Nevada 3500 Series monitoring systems and other vibration monitoring platforms.
How is it mounted?
Using the plate stud mounting method specified by Bently Nevada, ensuring rigid contact with the machinery surface.
What does the “CT” designation mean?
“CT” stands for Cooling Tower, indicating the sensor is optimized for low-speed, low-frequency vibration measurement.
Conclusion
The Bently Nevada 190501-09-00-01 Velomitor CT Velocity Sensor is a reliable and robust solution for low-speed machinery vibration monitoring. Its precise low-frequency response, rugged construction, and compatibility with industrial monitoring systems make it ideal for cooling towers, fans, and other slow-speed rotating equipment. By providing early detection of mechanical issues, it supports predictive maintenance programs and enhances machinery reliability.