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

Introduction to the 190501-01-00-CN Velomitor CT

When rotating machinery vibration threatens uptime, the 190501-01-00-CN from Bently Nevada provides precise, continuous velocity measurement. This Velomitor CT velocity transducer is engineered for industrial environments where accurate data drives maintenance decisions.

With a sensitivity of 3.94 mV/mm/s (±5%), the 190501-01-00-CN converts mechanical velocity into a clear electrical signal. Its frequency response spans 3.0 Hz to 900 Hz (180 to 54,000 cpm) within ±1.0 dB, making it suitable for a wide range of rotating equipment.

Built with a 316L stainless steel case and a 2-pin MIL-C-5015 connector, this transducer withstands harsh conditions. Its operating temperature range of -40°C to +85°C ensures reliable performance in demanding settings.

Key Features and Technical Specifications

• 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).
• Maximum Cable Length: 305 metres (1,000 ft.) with cable part number 02173006.
• 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.
• Mounting Surface: 33 mm diameter (1.3 in diameter).
• Height: 82 mm (3.2 in).
• 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).
• Polarity: Pin A goes positive with respect to Pin B when velocity is from base to top.
• Mounting Angle: Any orientation.

These specifications ensure accurate vibration measurement, even in challenging industrial environments. The 190501-01-00-CN is designed for long-term reliability, reducing the need for frequent recalibration or replacement.

Applications and Use Cases

The 190501-01-00-CN is ideal for monitoring rotating machinery such as pumps, motors, fans, and compressors. Its wide frequency response captures both low-speed and high-speed vibrations, providing early warning of mechanical issues.

In predictive maintenance programs, this transducer helps detect imbalance, misalignment, and bearing wear before they escalate into costly failures. By integrating with vibration monitoring systems, it enables condition-based maintenance strategies that optimize asset uptime.

Its robust construction and environmental ratings make it suitable for outdoor installations, including those with high humidity or temperature extremes. The transducer's internal electronics are isolated from the case, reducing ground loop issues.

Installation and Setup

Proper mounting is critical for accurate vibration measurement. The 190501-01-00-CN uses a 3/8-in 24 stud mount, and the recommended mounting torque is 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf). Ensure the mounting surface is clean and flat to achieve optimal frequency response.

The transducer can be mounted in any orientation, simplifying installation in tight spaces. Use the specified cable (part number 02173006) to maintain signal integrity over distances up to 305 metres (1,000 ft.).

For hazardous area installations, follow the applicable approval guidelines, such as Intrinsically Safe Ex ia IIC T4 or Non-Incendive Ex nL IIC T4, as indicated by the agency approval option. Always refer to the installation drawing 167536 for detailed requirements.

Maintenance and Reliability

Regular inspection of the transducer and its mounting ensures consistent performance. Check for any physical damage, loose connections, or corrosion, especially in harsh environments.

The 190501-01-00-CN is designed for minimal maintenance, with no moving parts and a sealed stainless steel case. Its temperature sensitivity is -8% to +5% typical over the operating range, ensuring stable output across varying conditions.

Periodic verification of the output bias voltage (10.1 Vdc ± 1.0 Vdc) can confirm proper operation. If readings deviate, consult the manufacturer's manual or contact Petro Auto Tech for guidance.

Compatibility and Integration

The 190501-01-00-CN connects via a MIL-C-5015 interface, compatible with Bently Nevada monitoring systems and other standard vibration monitoring equipment. Its 2-pin connector simplifies wiring, and the polarity is defined for correct signal interpretation.

For integration into existing systems, the transducer's low output impedance (<400 Ω) allows for long cable runs without signal degradation. This makes it suitable for large facilities where sensors are located far from monitoring panels.

Always verify compatibility with your specific monitoring system before installation. Petro Auto Tech can assist with technical questions and provide additional documentation.

Common Questions About the 190501-01-00-CN

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

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

Q: Can the transducer be used in hazardous areas?

A: Yes, with appropriate agency approvals, such as Intrinsically Safe Ex ia IIC T4 or Non-Incendive Ex nL IIC T4, depending on the option.

Q: What is the maximum cable length?

A: Up to 305 metres (1,000 ft.) with the specified cable part number 02173006, without signal degradation.

Q: What is the operating temperature range?

A: -40°C to +85°C (-40°F to +185°F).

Q: How should the transducer be mounted?

A: Use a 3/8-in 24 stud with a mounting torque of 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf). Any orientation is acceptable.

Product Support and Availability

The Bently Nevada 190501-01-00-CN is available through Petro Auto Tech. For technical specifications or ordering assistance, contact our team. We provide reliable support to help you select the right vibration monitoring solution.