190501-02-00-01 | Bently Nevada Velomitor CT Velocity Transducer

Introduction to the Bently Nevada 190501-02-00-01

When rotating machinery experiences unexpected vibration, the 190501-02-00-01 from Bently Nevada provides the precise measurement needed to diagnose problems early. This Velomitor CT velocity transducer is engineered for industrial environments where reliability and accuracy are non-negotiable. With a sensitivity of 3.94 mV/mm/s (±5%), it converts mechanical velocity into a clear electrical signal, enabling condition monitoring teams to track machine health in real time.

The 190501-02-00-01 is part of Bently Nevada's trusted Velomitor CT series, known for robust construction and consistent performance. Its 316L stainless steel case and MIL-C-5015 connector ensure durability in harsh conditions. Whether monitoring pumps, fans, or compressors, this transducer delivers the data needed to prevent unplanned downtime.

Key Features and Technical Specifications

The 190501-02-00-01 offers a range of specifications that make it suitable for demanding applications. Below are the core parameters derived directly from the product data:

• 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 Noise: 0.229 mm/s (0.009 in/s) pk
• Base Strain Sensitivity: 0.43 mm/s/μstrain (0.017 in/s/μstrain)
• Operating Temperature: -40°C to +85°C (-40°F to +185°F)
• Shock Limit: 5000 g pk, maximum
• Humidity Limit: 100% condensing, non-submerged
• Case Material: 316L stainless steel
• Mounting Torque: 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf)

One distinctive feature is the mounted resonant frequency of 9 kHz minimum (stud mounted, except quick disconnect). This high resonant frequency ensures accurate measurement across the operating range without interference from structural resonances. Additionally, the internal electronics are isolated from the case, reducing ground loop issues and improving signal integrity.

Applications and Use Cases

The 190501-02-00-01 is ideal for vibration monitoring on rotating equipment such as turbines, compressors, and motors. Its frequency response covers typical machine vibration frequencies, making it versatile for both low-speed and high-speed machinery. For example, in a petrochemical plant, this transducer can be mounted on a pump to detect bearing wear before it leads to catastrophic failure. Similarly, in power generation, it helps monitor fan and blower health, contributing to predictive maintenance strategies.

Because the transducer is rated for hazardous areas (CSA/NRTL/C Class I Division 1, ATEX/IECEx/CSA Class I Zone 0/1), it is suitable for use in explosive atmospheres, such as oil and gas facilities. This compliance reduces the need for additional enclosures, simplifying installation and lowering overall cost.

Installation and Setup

Proper installation is critical for accurate vibration measurement. The 190501-02-00-01 comes with a stud mounting option (3/8-in 24 to 1/2-in 20) and a MIL-C-5015 connection interface. Follow these general guidelines:

• Mount the transducer on a flat, machined surface to ensure good contact.
• Apply the recommended mounting torque of 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf) to avoid over-tightening.
• Orient the transducer in any direction; it is designed for any orientation.
• Use the specified cable (part number 02173006) for maximum signal integrity; cable lengths up to 305 meters (1,000 ft) are supported without signal degradation.

For hazardous area installations, refer to the installation drawing 167536 and local regulations. Always verify that the transducer is properly grounded according to the manufacturer's instructions.

Maintenance and Reliability

Regular inspection of the transducer and its mounting is essential to maintain reliable operation. Periodically check the mounting torque and ensure the connector is clean and secure. The 316L stainless steel case resists corrosion, but environmental factors such as moisture and chemicals can still affect performance over time. Therefore, it is advisable to include the transducer in routine preventive maintenance schedules.

The transducer's robust design, with a shock limit of 5000 g pk and 100% condensing humidity tolerance, contributes to long service life. By investing in this reliable component, you reduce the risk of unexpected failures and associated downtime, which translates to cost savings over the equipment's lifetime.

Compatibility and Integration

The 190501-02-00-01 is designed to work with Bently Nevada monitoring systems and can be integrated into existing condition monitoring architectures. Its output bias voltage of 10.1 Vdc and dynamic output impedance of <400 Ω make it compatible with standard vibration monitoring modules. For detailed integration guidance, consult the Bently Nevada documentation or contact Petro Auto Tech for technical support.

Troubleshooting and Common Issues

If the transducer fails to provide a signal, check the following:

• Verify that the connector is properly seated and the cable is not damaged.
• Measure the output bias voltage between Pin A and Pin B; it should be 10.1 Vdc ± 1.0 Vdc.
• Ensure that the mounting surface is clean and that the transducer is torqued to the specified value.
• Check for excessive cable length; while up to 305 meters is supported, longer runs may require signal conditioning.

If issues persist, refer to the official Bently Nevada manual or contact Petro Auto Tech for assistance.

FAQ about the 190501-02-00-01

Q: What is the sensitivity of the 190501-02-00-01?

A: The sensitivity is 3.94 mV/mm/s (100 mV/in/s) ±5%.

Q: What is the operating temperature range?

A: The operating temperature range is -40°C to +85°C (-40°F to +185°F).

Q: Can the transducer be used in hazardous areas?

A: Yes, it has approvals for CSA/NRTL/C (Class I, Division 1) and ATEX/IECEx/CSA (Class I, Zone 0/1).

Q: What is the maximum cable length?

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

Q: What is the mounting torque requirement?

A: The mounting torque is 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf).

Product Support and Availability

The 190501-02-00-01 is available through Petro Auto Tech, a trusted industrial automation parts supplier. Contact Petro Auto Tech for current pricing and lead times. Please verify the product lifecycle status and availability before ordering.