190501-01-00-00 | Bently Nevada 3.94 mV/mm/s Velocity Transducer

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

When rotating machinery vibration threatens uptime, the 190501-01-00-00 from Bently Nevada provides precise, continuous velocity measurement. This Velomitor CT velocity transducer is engineered for industrial environments where accuracy and durability are non-negotiable. With a sensitivity of 3.94 mV/mm/s (±5%), it captures vibration data essential for predictive maintenance and machine protection.

Manufactured in the U.S.A., this transducer is part of Bently Nevada's trusted Velomitor CT series. It features a stud mounting option (3/8-in 24 to 3/8-in 24) and a MIL-C-5015 connection interface, ensuring straightforward installation. The 190501-01-00-00 is built to perform in demanding conditions, from extreme temperatures to high shock environments.

Key Features & Technical Specifications

The 190501-01-00-00 offers a range of specifications that make it suitable for critical vibration monitoring applications. Here are the core performance metrics:

• 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 metres (1,000 ft.) of cable (part number 02173006) with no signal degradation.

These specs highlight the transducer's ability to deliver accurate velocity readings across a wide frequency range, making it ideal for detecting imbalance, misalignment, and bearing wear.

Environmental Durability and Mechanical Design

The 190501-01-00-00 is built to withstand harsh industrial conditions. Its operating temperature range is -40°C to +85°C (-40°F to +185°F), with storage from -40°C to +100°C (-40°F to +212°F). It can handle shock limits up to 5000 g pk and operates in 100% condensing humidity (non-submerged). Magnetic field susceptibility is less than 0.0068 mm/s/gauss at 50 gauss, 50-60 Hz.

Mechanically, the transducer weighs less than 297 g (10.5 oz.) and features a 316L stainless steel case and connector. The mounting surface is 33 mm in diameter, with a height of 82 mm. Mounting torque is specified at 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf). The polarity is defined: Pin A goes positive with respect to Pin B when velocity is from base to top of the transducer. Any mounting angle is acceptable.

Applications and Use Cases

The 190501-01-00-00 is suitable for a wide range of rotating machinery, including pumps, motors, fans, and compressors. Its frequency response covers typical machine vibration frequencies, making it effective for condition monitoring programs. For example, in a centrifugal pump application, the transducer can detect early signs of bearing degradation, allowing maintenance teams to schedule repairs before catastrophic failure occurs. Similarly, on large electric motors, it helps monitor vibration levels that could indicate rotor issues or misalignment.

Because the transducer is hermetically sealed and corrosion-resistant, it is also well-suited for offshore, chemical, and other harsh environments where equipment reliability is paramount.

Installation and Setup

Proper installation is critical for accurate vibration measurement. The 190501-01-00-00 uses a 3/8-in 24 stud mount, which provides a rigid connection to the machine surface. Ensure the mounting surface is clean and flat, and apply the specified mounting torque of 4.5 N-m ± 0.6 N-m. The MIL-C-5015 connection interface simplifies wiring, but always follow the manufacturer's wiring diagram to maintain correct polarity.

For best results, mount the transducer directly on the bearing housing or other rigid machine structure. Avoid mounting on thin panels or covers that may resonate. The transducer can be oriented in any direction, offering flexibility in tight spaces.

Maintenance and Reliability

Regular inspection of the transducer and its cabling helps ensure long-term reliability. Periodically check the mounting stud for tightness and inspect the connector for corrosion or damage. Because the internal electronics are isolated from the case, grounding is not required through the mounting stud, but proper system grounding is still essential.

The 190501-01-00-00 is designed for minimal maintenance, with no moving parts. Its 316L stainless steel construction resists corrosion, and the sealed design protects against moisture and contaminants. Following a routine inspection schedule can extend service life and prevent unexpected failures.

Compatibility and Integration

The 190501-01-00-00 is compatible with Bently Nevada monitoring systems and other data acquisition equipment that accepts standard velocity transducer inputs. Its output is a velocity signal proportional to vibration, which can be integrated into existing condition monitoring software. For detailed integration guidance, consult the official Bently Nevada documentation or contact Petro Auto Tech.

FAQ about the 190501-01-00-00

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

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 is the maximum cable length?

A: The maximum cable length is 305 metres (1,000 ft.) using cable part number 02173006.

Q: What mounting hardware is included?

A: The mounting hardware option is a stud 3/8-in 24 to 3/8-in 24.

Availability and Support

The Bently Nevada 190501-01-00-00 is available through Petro Auto Tech. Contact our team for current pricing and lead times. We are ready to assist with your vibration monitoring needs.