190501-07-00-04 | Bently Nevada Velomitor CT Velocity Transducer

Introduction to the 190501-07-00-04 Velomitor CT

When machine vibration threatens uptime, the 190501-07-00-04 from Bently Nevada provides precise, continuous velocity measurement. This Velomitor CT transducer is engineered for industrial rotating equipment, offering a rugged design that withstands harsh environments. Its compact form and versatile mounting options make it a practical choice for retrofits and new installations alike.

With a sensitivity of 3.94 mV/mm/s (±5%), the transducer delivers accurate data for condition monitoring. The frequency response spans 3.0 Hz to 900 Hz (±1.0 dB) and extends to 1.0 kHz (±3.0 dB), covering a wide range of machine speeds. This performance helps you detect early signs of imbalance, misalignment, or bearing wear before they escalate.

Key Features and Technical Specifications

The 190501-07-00-04 is built to deliver consistent results in demanding industrial settings. Below are the core specifications that define its performance:

• 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).
• Mounted Resonant Frequency: 9 kHz minimum (stud mounted, except quick disconnect).
• Operating Temperature: -40°C to +85°C (-40°F to +185°F).
• Shock Limit: 5000 g pk, maximum.
• Case Material: 316L stainless steel.

These specifications highlight the transducer's ability to operate reliably under extreme conditions. The 316L stainless steel case resists corrosion, while the internal electronics are isolated from the case, reducing ground loop issues.

Applications and Use Cases

The 190501-07-00-04 is suitable for monitoring vibration on pumps, motors, fans, compressors, and other rotating machinery. Its frequency response covers typical machine speeds, making it versatile across industries such as power generation, oil and gas, and manufacturing.

For example, in a petrochemical plant, continuous vibration monitoring helps prevent unplanned shutdowns. By installing this transducer on critical pumps, maintenance teams can track vibration trends and schedule repairs proactively. This approach reduces downtime and extends equipment life, offering a strong return on investment.

Installation and Mounting

Proper installation is essential for accurate readings. The 190501-07-00-04 comes with a plate stud mounting option (3/8-in 24 threads) and a MIL-C-5015 connection interface. The mounting torque should be 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf) to ensure a secure fit.

The transducer can be mounted in any orientation, which simplifies installation in tight spaces. The mounting surface diameter is 33 mm (1.3 in), and the height is 82 mm (3.2 in). Ensure the mounting surface is clean and flat to achieve optimal coupling.

For cable runs, the maximum cable length is 305 meters (1,000 ft) with part number 02173006, with no signal degradation. This flexibility allows you to place the monitoring system away from the machine if needed.

Maintenance and Reliability

Routine maintenance of the 190501-07-00-04 is minimal, but periodic inspection is recommended. Check the mounting integrity and cable connections regularly to ensure consistent performance. The transducer's robust design, including a 5000 g shock limit and 100% condensing humidity tolerance, ensures long-term reliability in harsh conditions.

Because the internal electronics are isolated from the case, the risk of ground loops is reduced, which enhances signal integrity. This reliability translates into fewer false alarms and more trustworthy data, helping you make informed maintenance decisions.

Compatibility and Integration

The 190501-07-00-04 is designed to work with Bently Nevada monitoring systems and other data acquisition equipment that accept velocity transducer inputs. Its output bias voltage of 10.1 Vdc and dynamic impedance of <400 Ω make it compatible with standard vibration monitoring modules.

For integration, verify that your monitoring system supports the transducer's sensitivity and frequency range. The MIL-C-5015 connector ensures a secure, industry-standard connection. If you are upgrading an existing system, this transducer can often replace older models with minimal changes.

Common Questions About the 190501-07-00-04

Q: What is the sensitivity of the 190501-07-00-04?

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

Q: What is the operating temperature range?

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

Q: Can the transducer be mounted in any orientation?

A: Yes, the mounting angle is any orientation, offering flexibility during installation.

Q: What is the maximum cable length?

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

Support and Availability

The 190501-07-00-04 is available through Petro Auto Tech, a trusted industrial automation parts supplier. Contact Petro Auto Tech to confirm current lifecycle status and availability before ordering. Our team can assist with product selection and technical questions.