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Product Introduction
The Bently Nevada 190501-19-00-04 Velomitor CT Velocity Transducer is a precision-engineered vibration sensor designed to measure the absolute vibration of machine casings in industrial applications. It converts mechanical motion into a proportional electrical signal, enabling real-time monitoring of vibration amplitude and frequency. This model belongs to Bently Nevada’s renowned Velomitor CT series, which is widely used for condition monitoring and machinery protection systems in critical industrial environments.
The transducer is factory-calibrated for high accuracy and excellent linearity, providing consistent performance in harsh operating conditions. The rugged stainless-steel housing ensures superior mechanical integrity and long-term stability, even in high-temperature, high-vibration, or contaminated environments. Its compact design, with a sensor diameter of 33 mm and a weight of 0.297 kg, allows for easy installation in confined areas of rotating machinery such as pumps, motors, compressors, and turbines.
Engineered for integration with Bently Nevada 3500 Series Monitoring Systems and compatible data acquisition modules, the 190501-19-00-04 provides a reliable solution for detecting imbalance, misalignment, bearing wear, and looseness, ensuring early warning before machinery failure occurs.
Technical Specifications
Parameter | Description |
---|---|
Product Name | Bently Nevada 190501-19-00-04 Velomitor CT Velocity Transducer |
Type | Case-mounted velocity transducer |
Measurement Range | ±50 mm/s peak (typical) |
Sensitivity | 100 mV/in/s ±10% |
Frequency Response | 4.5 Hz to 5 kHz (±3 dB) |
Transducer Type | Piezoelectric, compression-mode design |
Output Signal | Proportional voltage to vibration velocity |
Mounting Method | Stud or magnet mounting |
Transverse Sensitivity | <5% of axial sensitivity |
Resonant Frequency | >15 kHz |
Temperature Range (Operating) | -55°C to +120°C |
Temperature Coefficient | ±5% over the operating range |
Power Requirement | 18 to 28 VDC, 2 to 10 mA constant current |
Output Bias Voltage | +10 to +14 VDC |
Electrical Connector | MIL-style 2-pin connector (top or side exit) |
Housing Material | Stainless steel |
Sealing | Hermetically sealed |
Shock Limit | 5,000 g peak |
Cable Connection | Compatible with Bently Nevada coaxial cables |
Sensor Diameter | 33 mm |
Weight | 0.297 kg |
Mounting Torque | 2.7 to 6.8 N·m (recommended) |
Environmental Protection | IP65 or better, depending on installation |
Compliance | CE, RoHS, ISO 9001 manufacturing standards |
Product Applications
The 190501-19-00-04 Velomitor CT is engineered for use in industrial vibration monitoring systems that demand precision, durability, and stable performance. It is a trusted choice for measuring absolute casing vibration, providing crucial data for predictive maintenance and equipment protection.
Typical application areas include:
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Pumps: Detects imbalance, cavitation, and misalignment.
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Compressors: Monitors casing vibration for mechanical looseness and rotor imbalance.
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Electric Motors: Measures vibration for detecting bearing faults and shaft misalignment.
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Turbines: Provides vibration data for early failure detection in high-speed rotating equipment.
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Fans and Blowers: Ensures balanced operation and mechanical stability.
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Gearboxes: Identifies gear wear or mechanical looseness by monitoring velocity trends.
By integrating with Bently Nevada’s monitoring systems, this transducer allows predictive maintenance teams to analyze vibration signatures, identify anomalies, and schedule maintenance actions proactively, minimizing unplanned downtime.
Product Advantages
The Bently Nevada 190501-19-00-04 stands out for its combination of high accuracy, rugged construction, and ease of integration. It is a preferred solution for industrial environments requiring dependable vibration measurement under extreme mechanical and environmental stress.
Key advantages include:
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High Accuracy and Stability: Maintains precise output across a wide frequency and temperature range.
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Compact and Lightweight Design: With a 33 mm diameter and 0.297 kg weight, it fits easily into tight machinery spaces.
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Rugged Construction: Stainless-steel housing provides excellent resistance to corrosion and mechanical stress.
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Hermetic Sealing: Protects internal components from contaminants, moisture, and oil ingress.
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Wide Frequency Range: Accurately captures both low- and high-frequency vibration components.
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Low Transverse Sensitivity: Ensures accurate axial vibration measurement without distortion.
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Wide Operating Temperature Range: Performs reliably from -55°C up to +120°C.
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Easy Integration: Compatible with standard Bently Nevada monitoring systems, such as the 3500 and ADRE series.
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Maintenance Efficiency: Long calibration stability minimizes the need for frequent recalibration.
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High Shock and Vibration Tolerance: Suitable for heavy-duty machinery with strong dynamic motion.
FAQ
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What is the output type of the 190501-19-00-04 Velomitor CT?
It provides a voltage output that is directly proportional to the vibration velocity of the machine casing. -
Can this transducer be connected to any data acquisition system?
It is primarily designed for compatibility with Bently Nevada systems but can interface with other monitoring equipment that supports ICP-type (IEPE) signal conditioning. -
What kind of vibration does the transducer measure?
It measures absolute casing vibration, not relative shaft vibration, making it ideal for structure-mounted applications. -
How does the transducer ensure accuracy over a wide frequency range?
Its piezoelectric sensing element and internal electronics are optimized to maintain linear response and minimal distortion across 4.5 Hz to 5 kHz. -
Is temperature compensation built into the sensor?
Yes, the internal electronics are temperature-compensated to reduce drift and maintain calibration over the full operating range. -
How should the transducer be mounted for best performance?
It should be mounted firmly using a threaded stud or magnetic base to ensure proper mechanical coupling with the machine casing. -
Can the transducer operate in environments with high vibration or shock?
Yes, it withstands up to 5,000 g shock and continuous vibration exposure without degradation in signal quality. -
What type of power supply is required for this model?
It operates from a constant current source between 2–10 mA, typically supplied by the connected monitoring system (18–28 VDC). -
Does the transducer require periodic recalibration?
Although factory-calibrated, periodic verification is recommended as part of standard maintenance to ensure consistent accuracy. -
How does the Velomitor CT differ from traditional velocity pickups?
Unlike conventional moving-coil designs, the Velomitor CT uses piezoelectric technology, offering superior linearity, wider bandwidth, and improved durability.
Recommended Related Models (Same Series or Compatible)
Model | Description |
---|---|
190501-00-00 | Standard Velomitor CT for general-purpose vibration monitoring |
190501-02-00 | Side-exit connector version for limited-space installations |
190501-07-00 | High-temperature variant for elevated environment operation |
190501-12-00 | Low-sensitivity version for low-amplitude vibration applications |
190501-19-00-03 | Similar model with alternate calibration range |
190501-22-00 | Enhanced EMI protection version for power plant applications |
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