190501-01-99-CN | Bently Nevada 100 mV/in/s Velocity Transducer

Introduction to the Bently Nevada 190501-01-99-CN

When machine vibration threatens uptime, the 190501-01-99-CN from Bently Nevada provides precise, continuous velocity measurement. This Velomitor CT velocity transducer is engineered for industrial rotating equipment, offering a sensitivity of 3.94 mV/mm/s (100 mV/in/s) with ±5% accuracy. Consequently, it enables early detection of bearing wear, unbalance, and misalignment, helping you avoid costly failures.

Key Features and Technical Specifications

The 190501-01-99-CN is built for harsh environments and delivers consistent performance. Its key specifications include:

• 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.) with part number 02173006
• Operating Temperature: -40°C to +85°C (-40°F to +185°F)
• Shock Limit: 5000 g pk, maximum
• Case Material: 316L stainless steel
• Weight: <297 g (10.5 oz.)

One standout feature is the mounted resonant frequency of 9 kHz minimum, which ensures accurate measurement even in high-frequency applications. Additionally, the internal electronics are isolated from the case, reducing ground loop issues and improving signal integrity.

Applications and Use Cases

In petrochemical plants, power generation facilities, and rotating machinery trains, the 190501-01-99-CN excels at monitoring shaft and casing vibration. For example, on centrifugal compressors, this transducer provides real-time data that supports predictive maintenance strategies. Moreover, its rugged 316L stainless steel construction and IP-rated design (though not explicitly stated) make it suitable for demanding environments. As a result, you can rely on it for continuous operation in extreme temperatures and high humidity.

Installation and Mounting

Proper installation is critical for accurate readings. The 190501-01-99-CN comes with a 3/8-inch 24 stud mounting option, and the unit includes a 32-foot cable for flexible placement. Follow these guidelines:

• Mount the transducer on a flat, clean surface to ensure proper coupling.
• Apply the recommended mounting torque of 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf).
• Orient the transducer in any direction, as it is designed for any mounting angle.
• Ensure the cable is routed away from high-traffic areas to prevent damage.

For optimal signal quality, keep the cable length within the specified maximum of 305 metres. Also, verify that the mounting surface is free of paint or debris to avoid false readings.

Maintenance and Reliability

To maintain long-term reliability, inspect the transducer periodically for physical damage and verify that the mounting stud remains tight. Because the device is sealed and has no moving parts, it requires minimal maintenance. However, environmental factors like condensation and magnetic fields can affect performance. The 190501-01-99-CN is rated for 100% condensing humidity (non-submerged) and has a magnetic field susceptibility of <0.0068 mm/s/gauss, ensuring stable output in typical industrial settings. By following these simple checks, you can extend the service life and avoid unexpected downtime.

Compatibility and Integration

The 190501-01-99-CN is designed to work seamlessly with Bently Nevada monitoring systems, such as the 3500 series, and other compatible vibration monitoring equipment. Its standard velocity output (mV/mm/s) makes it easy to integrate into existing data acquisition systems. Additionally, the 2-pin MIL-C-5015 connector ensures a secure electrical connection. For new installations, confirm that your monitoring system accepts the 100 mV/in/s sensitivity and the 10.1 Vdc bias voltage.

FAQ

Q: What is the sensitivity of the 190501-01-99-CN?

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

Q: What is the maximum cable length for this transducer?

A: The maximum cable length is 305 metres (1,000 ft.) when using cable part number 02173006, with no signal degradation.

Q: Can the 190501-01-99-CN be mounted in any orientation?

A: Yes, the transducer can be mounted in any orientation, and the mounting torque should be 4.5 N-m ± 0.6 N-m.

Q: What is the operating temperature range?

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

Q: Is the 190501-01-99-CN suitable for hazardous areas?

A: The agency approval option CN is country-specific; for hazardous area approvals, refer to the specific agency option codes (01-04) that include intrinsic safety ratings.

Product Support and Availability

The 190501-01-99-CN is available from Petro Auto Tech, an industrial automation parts supplier. We maintain a ready inventory to support your maintenance and repair needs. Contact Petro Auto Tech for current pricing and lead times.