190501-01-99-CN | Bently Nevada Velomitor CT Velocity Transducer

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

When rotating machinery experiences vibration, the 190501-01-99-CN from Bently Nevada provides precise velocity measurements. This Velomitor CT velocity transducer is engineered for industrial condition monitoring. It offers a sensitivity of 3.94 mV/mm/s (100 mV/in/s) with a tolerance of ±5%. This ensures accurate data for predictive maintenance programs.

The transducer is manufactured in the U.S.A. and features a stud mounting option (3/8-in 24 to 3/8-in 24). It comes with a 32-foot cable included, simplifying installation. The agency approval option is CN country specific, catering to regional requirements.

Key Features and Technical Specifications

The 190501-01-99-CN is designed for reliable performance across a wide range of conditions. Its frequency response covers 3.0 Hz to 900 Hz (180 to 54,000 cpm) within ±1.0 dB. For broader monitoring, it operates from 1.5 Hz to 1.0 kHz (90 to 60,000 cpm) within ±3.0 dB.

• 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.
• 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.

One distinctive spec is the mounted resonant frequency of 9 kHz minimum. This high resonant frequency ensures the transducer operates effectively in high-frequency vibration environments without signal distortion. Consequently, it is ideal for applications like gearboxes and high-speed turbines.

Environmental Durability and Mechanical Design

The 190501-01-99-CN withstands harsh industrial environments. Its operating temperature range is -40°C to +85°C (-40°F to +185°F). Storage temperature extends from -40°C to +100°C (-40°F to +212°F). The shock limit is 5000 g pk maximum, ensuring robustness. Humidity limit is 100% condensing, non-submerged, making it suitable for humid conditions.

Mechanically, the transducer weighs less than 297 g (10.5 oz.). The mounting surface diameter is 33 mm (1.3 in). Height is 82 mm (3.2 in). The case material is 316L stainless steel, providing corrosion resistance. The connector is a 2-pin 316L stainless steel MIL-C-5015, top-mounted. Mounting torque is 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf). Polarity is defined: Pin A goes positive with respect to Pin B when velocity is from base to top. Mounting angle can be any orientation.

Applications and Use Cases

The 190501-01-99-CN is widely used in industrial rotating machinery monitoring. It is suitable for fans, pumps, motors, and compressors. In addition, it excels in high-speed applications where its high resonant frequency is beneficial. For example, in a petrochemical plant, the transducer can monitor pump vibration to detect imbalance or bearing wear early. This proactive approach reduces unplanned downtime and maintenance costs.

Installation and Setup

Proper installation is crucial for accurate vibration measurement. The stud mounting option (3/8-in 24) requires a tapped hole on the machine surface. Apply the specified mounting torque of 4.5 N-m ± 0.6 N-m. Ensure the mounting surface is clean and flat. The included 32-foot cable simplifies wiring. For longer runs, up to 305 metres of cable (part number 02173006) can be used without signal degradation. The transducer can be mounted in any orientation, offering flexibility.

Maintenance and Reliability

Routine inspection of the transducer and its cable is recommended. Check for physical damage, loose mounting, or cable wear. The 316L stainless steel case resists corrosion, extending service life. Since the internal electronics are isolated from the case, grounding issues are minimized. Regular verification of output bias voltage (10.1 Vdc ± 1.0 Vdc) ensures proper operation. Following these practices maximizes reliability and reduces lifecycle costs.

Compatibility and Integration

The 190501-01-99-CN is compatible with Bently Nevada monitoring systems. It provides a dynamic output signal suitable for vibration monitors and diagnostic equipment. The transducer's low output impedance (<400 Ω) allows easy integration with data acquisition systems. For specific compatibility details, consult the official Bently Nevada documentation or contact Petro Auto Tech.

FAQ about the 190501-01-99-CN

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 the 190501-01-99-CN?

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

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

A: Yes, the mounting angle can be any orientation, providing installation flexibility.

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 190501-01-99-CN is available through Petro Auto Tech. We are an industrial automation parts supplier. Contact us for current availability and lifecycle status. We are ready to support your vibration monitoring needs.