190501-01-00-CN | Bently Nevada Velomitor CT Velocity Transducer

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

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

Key Features and Technical Specifications

The 190501-01-00-CN offers a robust set of specifications designed for demanding applications. Its frequency response spans 3.0 Hz to 900 Hz (±1.0 dB) and extends to 1.0 kHz (±3.0 dB), covering typical machinery vibration ranges. The transducer operates over a wide temperature range, from -40°C to +85°C, ensuring performance in harsh conditions.

• Sensitivity: 3.94 mV/mm/s (100 mV/in/s) ±5%
• Frequency response: 3.0 Hz to 900 Hz (±1.0 dB); 1.5 Hz to 1.0 kHz (±3.0 dB)
• Operating temperature: -40°C to +85°C
• Output bias voltage: 10.1 Vdc ± 1.0 Vdc (Pin A referenced to Pin B)
• Dynamic output impedance: <400 Ω typical
• Mounted resonant frequency: 9 kHz minimum (stud mounted)
• Case material: 316L stainless steel
• Weight: 0.297 kg (10.5 oz) typical

One standout feature is the broadband base strain sensitivity of 0.43 mm/s/μstrain, which minimizes false readings from mechanical strain. This makes the transducer ideal for installations where mounting surfaces may flex.

Applications and Use Cases

This velocity transducer is suitable for monitoring pumps, motors, fans, and other rotating equipment in industries such as oil and gas, power generation, and manufacturing. Its rugged construction and intrinsic safety options (Ex ia IIC T4, AEx ia IIC T4) allow deployment in hazardous areas when specified with appropriate agency approvals. For example, in a refinery, the 190501-01-00-CN can provide continuous vibration data to detect bearing wear early, reducing unplanned downtime.

Installation and Setup

Mounting the transducer is straightforward with the stud 3/8-in 24 to 3/8-in 24 mounting hardware option. 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, offering flexibility for tight spaces. The MIL-C-5015 connection interface ensures a secure electrical connection. For best results, follow the manufacturer's installation drawing (e.g., drawing 167536 for intrinsically safe installations).

Maintenance and Reliability

Regular inspection of the transducer and its cabling is recommended to ensure long-term reliability. The 316L stainless steel case provides excellent corrosion resistance, and the internal electronics are isolated from the case, reducing ground loop issues. With a shock limit of 5000 g pk, the transducer withstands harsh mechanical environments. Periodic verification of output bias voltage and sensitivity can help detect drift early.

Compatibility and Integration

The 190501-01-00-CN is compatible with Bently Nevada monitoring systems and can be integrated with most vibration monitoring platforms. The maximum cable length of 305 meters (1,000 feet) with part number 02173006 ensures signal integrity over long runs. The transducer's dynamic output impedance of <400 Ω typical allows direct connection to standard data acquisition systems.

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) with a tolerance of ±5%.

Q: Can the transducer be used in hazardous areas?

A: Yes, with the appropriate agency approval option (e.g., Ex ia IIC T4), it is suitable for intrinsically safe applications.

Q: What is the maximum cable length?

A: The maximum cable length is 305 meters (1,000 feet) using cable part number 02173006 without signal degradation.

Q: What is the operating temperature range?

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

Product Support and Availability

The Bently Nevada 190501-01-00-CN is available through Petro Auto Tech. For current lifecycle status and availability, please contact Petro Auto Tech before ordering. Our team can assist with technical questions and ensure you receive the correct transducer for your application.