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

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

When machine vibration threatens uptime, the 190501-02-00-01 from Bently Nevada provides accurate velocity measurements. This Velomitor CT velocity transducer is engineered for industrial rotating equipment. It delivers consistent performance across demanding environments.

With a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%, this transducer converts mechanical vibration into a usable electrical signal. Its frequency response spans 3.0 Hz to 900 Hz (180 to 54,000 cpm) ±1.0 dB, covering typical machine vibration ranges. The device operates from -40°C to +85°C, making it suitable for harsh industrial settings.

Key Features and Technical Specifications

The 190501-02-00-01 offers several distinctive features that support reliable condition monitoring:

• 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)
• Transverse response: less than 5% of axial sensitivity
• Amplitude linearity: ±2% to 63.5 mm/s pk (2.5 in/s pk)
• Mounted resonant frequency: 9 kHz minimum (stud mounted)
• Maximum cable length: 305 meters (1,000 ft) with no signal degradation

These specifications ensure accurate vibration data collection. The low transverse response minimizes cross-axis errors. The high resonant frequency avoids interference in most operating ranges.

Buyer's Guide: Evaluating the 190501-02-00-01

When selecting a velocity transducer, consider the following factors. First, verify the frequency range matches your machine's vibration characteristics. The 3.0 Hz to 900 Hz range covers most rotating equipment. Second, check the mounting hardware option. This model includes a stud 3/8-in 24 to 1/2-in 20 mounting option, which provides a secure attachment.

Third, assess environmental conditions. The transducer withstands 100% condensing humidity and shock up to 5000 g pk. Its 316L stainless steel case resists corrosion. Fourth, confirm the connection interface. The MIL-C-5015 connection interface ensures a robust electrical connection.

Finally, consider the agency approvals. This unit carries CSA/NRTL/C (Class I, Division 1) and ATEX/IECEx/CSA (Class I, Zone 0/1) approvals, making it suitable for hazardous areas.

Applications and Use Cases

The 190501-02-00-01 is ideal for monitoring pumps, fans, compressors, and turbines. In petrochemical plants, it helps detect bearing wear and imbalance. In power generation, it monitors shaft vibration to prevent catastrophic failures. Its intrinsic safety approvals (Ex ia IIC T4) allow installation in explosive atmospheres.

Furthermore, the transducer's temperature sensitivity of -8% to +5% typical ensures stable output across its operating range. This reliability reduces false alarms and maintenance costs. Consequently, the device supports predictive maintenance programs, extending equipment life and reducing downtime.

Installation and Setup

Proper installation is crucial for accurate measurements. Mount the transducer on a flat, clean surface using the provided stud. Apply the specified mounting torque of 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf). Ensure the mounting surface is free of paint or debris to achieve good contact.

Connect the MIL-C-5015 connector to the mating cable. Observe polarity: Pin A goes positive with respect to Pin B when velocity is from base to top. The transducer can be mounted in any orientation, simplifying installation in tight spaces.

For hazardous area installations, follow the installation drawing 167536. This ensures compliance with intrinsic safety requirements.

Maintenance and Reliability

Routine maintenance is minimal due to the rugged design. Periodically inspect the mounting integrity and cable condition. Check for any signs of corrosion or damage. The internal electronics are isolated from the case, reducing ground loop issues.

The transducer's 316L stainless steel construction resists harsh chemicals and moisture. With no moving parts, it offers long service life. Regular calibration checks are recommended to maintain measurement accuracy.

Compatibility and Integration

The 190501-02-00-01 integrates with Bently Nevada monitoring systems. It provides a standard velocity signal compatible with most vibration monitors. The maximum cable length of 305 meters allows flexible placement of monitoring electronics.

For replacement applications, this transducer matches the form and function of original Velomitor CT units. Always verify compatibility with your existing system before ordering.

FAQ

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: What are the agency approvals?

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

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?

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 from Petro Auto Tech. Contact our team for current pricing and lead times. We provide fast shipping and responsive support. Please verify lifecycle status and availability before ordering.