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

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

When machinery vibration threatens uptime, the 190501-01-99-CN from Bently Nevada provides precise, dependable measurement. This Velomitor CT velocity transducer is engineered for industrial rotating equipment, offering a direct path to condition monitoring. With a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%, it captures vibration data accurately. The 190501-01-99-CN is a robust choice for plants seeking to reduce unplanned downtime.

Key Features and Technical Specifications

The 190501-01-99-CN is built to perform in demanding environments. Its specifications are tailored for reliable operation. Key parameters 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.
• Mounted Resonant Frequency: 9 kHz minimum (stud mounted).
• 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.), typical.

One distinctive feature is the broadband base strain sensitivity of 0.43 mm/s/μstrain (0.017 in/s/μstrain). This minimizes false readings from case strain, ensuring the transducer measures true shaft vibration. This is critical for accurate diagnostics in high-stress applications.

Applications and Use Cases

The 190501-01-99-CN is ideal for vibration monitoring on pumps, motors, fans, and gearboxes. Its frequency response covers common machine speeds, making it versatile across many asset types. For example, in a paper mill, this transducer can monitor dryer rolls to detect imbalance early. Consequently, maintenance teams can schedule repairs before catastrophic failure occurs. Furthermore, its rugged construction suits harsh industrial environments.

Installation and Mounting Guidance

Proper installation is essential for accurate readings. The 190501-01-99-CN uses a 3/8-in 24 stud for mounting. Apply the specified mounting torque of 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf) to ensure a secure fit. The transducer can be mounted in any orientation, simplifying placement. Additionally, the included 32-foot cable (connection option 99) provides flexibility in routing. Always follow the manufacturer's guidelines for surface preparation and mounting to avoid errors.

Maintenance and Reliability

Routine inspection of the transducer and cable is recommended to maintain performance. Check for physical damage, loose connections, or corrosion, especially in humid or corrosive atmospheres. The 316L stainless steel case offers excellent corrosion resistance, extending service life. Because the internal electronics are isolated from the case, grounding issues are minimized. This design enhances reliability, reducing the total cost of ownership over time.

Compatibility and Integration

The 190501-01-99-CN outputs a standard velocity signal, making it compatible with most Bently Nevada monitors and diagnostic systems. Its 10.1 Vdc bias voltage is typical for such transducers. The maximum cable length of 305 meters (1,000 ft.) allows for remote mounting of monitoring equipment. This flexibility simplifies system integration in large facilities.

Environmental and Agency Approvals

This model (agency approval option CN) is country-specific. For hazardous area installations, the 190501 series offers intrinsically safe options (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; and Class III. Non-incendive options (Ex nL IIC T4 and AEx nA T4) are also available for Class I, Division 2, Groups A, B, C, and D. These approvals ensure safe operation in explosive atmospheres. Please verify the specific approval needed for your site with 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) ±5%.

Q: What is the operating temperature range?

A: It operates from -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 no signal degradation.

Q: What mounting hardware is included?

A: It uses a 3/8-in 24 stud mounting option.

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

A: The CN agency option is country-specific; other options offer intrinsic safety. Contact Petro Auto Tech for details.

Product Support and Availability

The 190501-01-99-CN is available through Petro Auto Tech, a trusted industrial automation parts supplier. We ensure genuine Bently Nevada products with reliable delivery. For assistance with selection or technical questions, contact our team. We are ready to support your vibration monitoring needs.