190501-01-99-CN | Bently Nevada Velomitor CT Velocity Transducer

Introduction to the Bently Nevada 190501-01-99-CN

When machinery vibration threatens uptime, the 190501-01-99-CN from Bently Nevada provides the precise measurement you need. This Velomitor CT Velocity Transducer is engineered for continuous monitoring in demanding industrial environments. With a sensitivity of 3.94 mV/mm/s (±5%), it delivers accurate velocity data for predictive maintenance programs.

As a maintenance engineer, you need dependable sensors that withstand harsh conditions. The 190501-01-99-CN is built with a 316L stainless steel case and connector, ensuring corrosion resistance and long-term reliability. Its compact design—82 mm height and 33 mm mounting surface—fits easily into existing machine train setups.

Key Features and Technical Specifications

The 190501-01-99-CN offers a robust set of specifications tailored for industrial vibration monitoring:

• Sensitivity: 3.94 mV/mm/s (100 mV/in/s) ±5%
• Frequency Response: 3.0 Hz to 900 Hz (180 to 54,000 cpm) ±1.0 dB; 1.5 Hz to 1.0 kHz (90 to 60,000 cpm) ±3.0 dB
• Output Bias Voltage: 10.1 Vdc ± 1.0 Vdc, Pin A referenced to Pin B
• Dynamic Output Impedance: <400 Ω typical
• Broadband: 0.229 mm/s (0.009 in/s) pk
• Base Strain Sensitivity: 0.43 mm/s/μstrain (0.017 in/s/μstrain)
• Maximum Cable Length: 305 meters (1,000 ft) of cable (part number 02173006) with no signal degradation
• Operating Temperature: -40°C to +85°C (-40°F to +185°F)
• Storage Temperature: -40°C to +100°C (-40°F to +212°F)
• Shock Limit: 5000 g pk, maximum
• Humidity Limit: 100% condensing, non-submerged
• Magnetic Field Susceptibility: <0.0068 mm/s/gauss (0.268 mil/s/gauss) @ 50 gauss, 50-60 Hz
• Weight: <297 g (10.5 oz), typical
• Case Material: 316L stainless steel
• Connector: 2-pin 316L stainless steel MIL-C-5015, top
• Mounting Torque: 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf)
• Mounting Angle: Any orientation

One distinctive feature is the internal electronics isolated from the case, which minimizes ground loop issues and enhances signal integrity. This is particularly valuable in electrically noisy environments, ensuring reliable data for your condition monitoring system.

Applications and Use Cases

The 190501-01-99-CN is ideal for monitoring rotating machinery such as pumps, motors, fans, and compressors. Its frequency response covers a wide range, from 1.5 Hz to 1.0 kHz, making it suitable for both low-speed and high-speed equipment. The transducer's robust design allows installation in harsh environments, including those with high humidity or temperature extremes.

For predictive maintenance programs, this sensor provides the accurate velocity data needed to detect imbalance, misalignment, and bearing wear early. By catching these issues before they escalate, you can reduce unplanned downtime and extend equipment life—a key cost-benefit advantage.

Installation and Setup

Mounting the 190501-01-99-CN is straightforward. The unit comes with a 3/8-inch 24 stud for secure attachment to the machine surface. Apply the specified mounting torque of 4.5 N-m ± 0.6 N-m to ensure proper coupling without damaging the transducer. The included 32-foot cable simplifies wiring, and the maximum cable length of 305 meters allows flexible placement of monitoring equipment.

Polarity is clearly defined: Pin A goes positive with respect to Pin B when velocity is from base to top of the transducer. This ensures correct phase interpretation in your monitoring system. The transducer can be mounted at any angle, offering installation flexibility.

Maintenance and Reliability

With no moving parts, the Velomitor CT requires minimal maintenance. However, periodic inspection is recommended to verify the mounting integrity and cable condition. Check for any signs of corrosion or physical damage, especially in harsh environments. The 316L stainless steel construction provides excellent resistance to corrosion, but regular visual checks help ensure long-term reliability.

The transducer's shock limit of 5000 g pk ensures it withstands severe impacts, reducing the risk of damage during operation or maintenance. Its humidity limit of 100% condensing (non-submerged) makes it suitable for damp environments, further enhancing its reliability.

Compatibility and Integration

The 190501-01-99-CN is designed to work with Bently Nevada monitoring systems, but its standard 2-pin MIL-C-5015 connector and 10.1 Vdc bias voltage make it compatible with many industrial vibration monitoring setups. The output signal is a standard velocity signal, which can be integrated with PLCs, DCS, or standalone vibration monitors.

For seamless integration, use the specified cable part number 02173006 to maintain signal integrity over long distances. The transducer's internal grounding isolation helps prevent ground loops, ensuring clean signals for accurate analysis.

Frequently Asked Questions

Q: What is the sensitivity of the 190501-01-99-CN?

A: The sensitivity is 3.94 mV/mm/s (100 mV/in/s) ±5%, providing accurate velocity measurement.

Q: What is the operating temperature range?

A: The transducer operates from -40°C to +85°C (-40°F to +185°F), suitable for most industrial environments.

Q: Can the 190501-01-99-CN be used in hazardous areas?

A: The agency approval option CN is country-specific; refer to official documentation for hazardous area certifications.

Q: What is the maximum cable length?

A: The maximum cable length is 305 meters (1,000 ft) with no signal degradation, using cable part number 02173006.

Q: How should the transducer be mounted?

A: Use the 3/8-inch 24 stud and apply 4.5 N-m ± 0.6 N-m torque. The transducer can be mounted at any angle.

Product Support and Availability

The 190501-01-99-CN is available through Petro Auto Tech, your trusted industrial automation parts supplier. We understand the importance of minimizing downtime, so we strive to keep this item in stock and ready to ship. Contact our team for current availability and lead times.