190501-10-00-CN | Bently Nevada Velomitor CT Velocity Transducer

Introduction to the 190501-10-00-CN

In the evolving landscape of industrial machinery protection, accurate vibration measurement is no longer a luxury—it is a necessity. The 190501-10-00-CN from Bently Nevada addresses this need with precision and durability. As a Velomitor CT velocity transducer, it converts mechanical velocity into an electrical signal, enabling operators to detect early signs of bearing wear, unbalance, and misalignment.

This transducer is designed for permanent installation on rotating equipment such as pumps, motors, and turbines. Its robust construction and wide operating temperature range make it suitable for demanding environments. With a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%, the 190501-10-00-CN provides consistent, repeatable data for condition monitoring systems.

Whether you are upgrading an existing monitoring system or specifying new equipment, the 190501-10-00-CN offers a proven solution backed by Bently Nevada's reputation for reliability.

Key Features and Technical Specifications

The 190501-10-00-CN is engineered to deliver accurate velocity measurements across a broad frequency range. Below are the core specifications that define its performance:

• 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)
• 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 metres (1,000 ft) with part number 02173006

These specifications ensure that the 190501-10-00-CN delivers accurate data even in challenging industrial environments. The low transverse response minimizes errors from cross-axis vibrations, while the wide frequency range captures both slow-speed and high-speed machinery dynamics.

Applications and Use Cases

The 190501-10-00-CN is ideal for vibration monitoring on critical rotating machinery. Common applications include:

• Centrifugal pumps and compressors
• Electric motors and generators
• Industrial fans and blowers
• Machine tool spindles
• Paper mill rolls and dryers

In each of these settings, the transducer provides real-time velocity data that helps maintenance teams identify developing faults before they lead to unplanned downtime. The 190501-10-00-CN's robust design also makes it suitable for outdoor installations where temperature extremes and moisture are a concern.

Installation and Setup

Proper installation is critical to achieving accurate measurements. The 190501-10-00-CN comes with a mounting hardware option that includes a plate stud M6x1 to M6x1 with a 3/8-24 adapter. This flexibility allows for secure attachment to various machine surfaces.

When installing, ensure the mounting surface is clean and flat. The recommended mounting torque is 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf). The transducer can be mounted in any orientation, and the case is made of 316L stainless steel for corrosion resistance.

The connection interface is a MIL-C-5015 2-pin connector, which provides a reliable, moisture-resistant connection. For extended cable runs, the maximum cable length is 305 meters (1,000 feet) without signal degradation, using the specified cable part number.

Maintenance and Reliability

The 190501-10-00-CN is designed for long-term, maintenance-free operation. The internal electronics are isolated from the case, reducing the risk of ground loops. The transducer can withstand shock up to 5000 g pk and operates in 100% condensing humidity (non-submerged).

To ensure continued accuracy, periodic verification of the output bias voltage is recommended. If the bias voltage drifts outside the specified range, it may indicate a problem with the transducer or cabling. Regular inspection of the mounting integrity and connector condition will help prevent measurement errors.

Given its rugged construction and environmental limits, the 190501-10-00-CN offers excellent long-term value, reducing the total cost of ownership compared to less durable alternatives.

Compatibility and Integration

The 190501-10-00-CN is compatible with Bently Nevada monitoring systems and other data acquisition equipment that accepts velocity transducer inputs. The output is a standard velocity signal with a bias voltage, making it easy to interface with most vibration monitoring systems.

For hazardous area installations, the 190501-10-00-CN is available with agency approvals including Intrinsically Safe Ex ia IIC T4 and AEx ia IIC T4 (options 01 through 04). These approvals cover Class I, Division 1, Groups A, B, C, D; Class II, Groups E, F, G; and Class III. Installation must follow drawing 167536.

When integrating the transducer, ensure that the monitoring system is configured for the correct sensitivity and bias voltage. The 190501-10-00-CN's output polarity is defined: Pin A goes positive with respect to Pin B when velocity is from base to top.

Frequently Asked Questions

What is the sensitivity of the 190501-10-00-CN?

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

What is the operating temperature range?

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

Can the 190501-10-00-CN be used in hazardous areas?

Yes, with the appropriate agency approval option (01 through 04), it is intrinsically safe for Class I, Div 1, Groups A, B, C, D.

What is the maximum cable length?

The maximum cable length is 305 meters (1,000 feet) using cable part number 02173006.

What is the mounting torque requirement?

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

Product Support and Availability

The 190501-10-00-CN is available from Petro Auto Tech, an industrial automation parts supplier. Please verify current lifecycle status and availability with Petro Auto Tech before ordering. Our team can assist with product selection and technical inquiries.