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

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

When machine vibration threatens uptime, the 190501-00-00-CN from Bently Nevada provides precise, continuous monitoring. 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 with exceptional fidelity, enabling early detection of mechanical issues.

As a country-specific model (CN), the 190501-00-00-CN is built to meet regional requirements while maintaining Bently Nevada's rigorous standards. Its robust 316L stainless steel case and MIL-C-5015 connection interface ensure long-term reliability in harsh conditions.

Key Features & Technical Specifications

The 190501-00-00-CN offers a comprehensive set of specifications that make it a versatile choice for vibration monitoring:

• 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
• Temperature Sensitivity: -8% to +5% typical over operating range
• 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, except quick disconnect)
• 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)
• Grounding: Internal electronics isolated from case
• Maximum Cable Length: 305 meters (1,000 ft.) with part number 02173006

One standout feature is the base strain sensitivity of 0.43 mm/s/μstrain. This low value means the transducer minimizes false readings caused by mechanical strain on the mounting surface, ensuring that the vibration data you collect reflects true machine condition, not installation artifacts.

Environmental Durability

The 190501-00-00-CN is built to withstand demanding environments:

• 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

These specifications ensure reliable operation in extreme conditions, from freezing outdoor installations to high-vibration rotating machinery. The 100% condensing humidity rating means the transducer can handle moisture-laden environments without performance degradation.

Installation & Mounting

Proper installation is critical for accurate vibration measurement. The 190501-00-00-CN offers flexibility with its mounting options:

• Mounting Hardware Option: 0 0 No stud
• Connection Option: 0 0 MIL-C-5015 connection interface
• 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-C5015, top
• Mounting Torque: 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf)
• Mounting Angle: Any orientation

The transducer can be mounted in any orientation, simplifying installation in tight spaces. The MIL-C-5015 connection interface provides a secure, reliable electrical connection that withstands vibration and environmental stress. For optimal performance, follow the manufacturer's recommended mounting torque to ensure proper coupling.

Applications & Use Cases

The 190501-00-00-CN is ideal for vibration monitoring in rotating machinery such as pumps, motors, fans, and compressors. Its wide frequency response (1.5 Hz to 1.0 kHz) captures both low-speed and high-speed vibration signatures, making it suitable for a range of industrial assets.

In predictive maintenance programs, this transducer helps detect unbalance, misalignment, and bearing wear early, allowing maintenance teams to schedule repairs before catastrophic failure occurs. The low base strain sensitivity ensures that measurements reflect true machine vibration, not mounting surface deformation.

Furthermore, the transducer's intrinsic safety approvals (Ex ia IIC T4 and AEx ia IIC T4) make it suitable for hazardous area installations where flammable gases or dust may be present. This expands its applicability to chemical plants, refineries, and other process industries.

Maintenance & Reliability

To maintain long-term accuracy, periodic inspection of the transducer and its mounting is recommended. Check the mounting torque periodically, as vibration can loosen connections over time. Verify the output bias voltage (10.1 Vdc ± 1.0 Vdc) to ensure the internal electronics are functioning correctly.

The 316L stainless steel case provides excellent corrosion resistance, reducing the need for frequent replacements. With a maximum cable length of 305 meters, you can place the monitoring electronics in a safe, accessible location while keeping the transducer close to the machine.

Given its robust design and reliable performance, the 190501-00-00-CN offers a cost-effective solution for continuous vibration monitoring, minimizing downtime and extending machinery life.

Frequently Asked Questions

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

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 meters (1,000 ft.) with cable part number 02173006.

Q: Is the 190501-00-00-CN suitable for hazardous areas?

A: Yes, it has intrinsic safety approvals Ex ia IIC T4 and AEx ia IIC T4 for Class I, Div 1, Groups A, B, C, D; Class II, Groups E, F, G; Class III.

Product Support & Availability

The 190501-00-00-CN is available from Petro Auto Tech, a trusted industrial automation parts supplier. Contact Petro Auto Tech for current availability and lead times. Please verify the current lifecycle status and availability with Petro Auto Tech before ordering.