190501-11-00-CN | Bently Nevada 3.94 mV/mm/s Velocity Transducer

Introduction to the Bently Nevada 190501-11-00-CN

When machinery vibration threatens uptime, the 190501-11-00-CN from Bently Nevada provides reliable velocity measurement. This Velomitor CT Velocity Transducer is designed for continuous monitoring in harsh environments. With a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%, it captures critical vibration data accurately. The transducer supports frequencies from 3.0 Hz to 900 Hz (180 to 54,000 cpm) within ±1.0 dB. Its robust 316L stainless steel case ensures durability in demanding industrial settings.

Key Features and Technical Specs of the 190501-11-00-CN

• 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.
• Output Bias Voltage: 10.1 Vdc ± 1.0 Vdc, Pin A referenced to Pin B.
• Operating Temperature: -40°C to +85°C (-40°F to +185°F).
• Shock Limit: 5000 g pk, maximum.
• Case Material: 316L stainless steel.
• Weight: Less than 297 g (10.5 oz), typical.
• Mounting Torque: 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf).

A standout feature is the broadband noise floor of only 0.229 mm/s (0.009 in/s) pk, ensuring clean signals even in low-vibration environments. This makes the 190501-11-00-CN ideal for early fault detection.

Applications and Use Cases

Engineers rely on the 190501-11-00-CN for vibration monitoring in rotating machinery such as pumps, fans, compressors, and turbines. Its wide frequency range captures both low-speed and high-speed events. The transducer operates reliably in temperatures from -40°C to +85°C, suiting outdoor and process plant installations. Moreover, its 100% condensing humidity tolerance makes it suitable for wet environments. Consequently, it helps prevent unplanned downtime by providing early warnings of bearing wear or imbalance.

Installation and Setup Guide

Mount the 190501-11-00-CN using the provided 1/4-28 stud with a torque of 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf). Ensure the mounting surface is clean and flat for optimal coupling. The transducer can be installed at any orientation, offering flexibility in tight spaces. Connect via the MIL-C-5015 2-pin connector, noting that Pin A goes positive relative to Pin B when velocity is from base to top. For best signal integrity, use cable part number 02173006 up to 305 meters (1,000 ft) without degradation.

Maintenance and Reliability

Regular inspection of the 190501-11-00-CN ensures long-term reliability. Check the cable and connector for damage periodically. The sealed 316L stainless steel case resists corrosion, reducing maintenance needs. Given its robust design, the transducer typically requires no internal servicing. However, verify the output bias voltage (10.1 Vdc ± 1.0 Vdc) during routine checks to confirm proper operation. This proactive approach minimizes downtime and extends service life.

Compatibility and Integration

The 190501-11-00-CN integrates seamlessly with Bently Nevada monitoring systems and data acquisition platforms. Its standard 100 mV/in/s sensitivity matches most vibration monitoring modules. The transducer's internal electronics are isolated from the case, preventing ground loops. For hazardous locations, the 190501 series (agency options 01-04) carries intrinsic safety approvals: Ex ia IIC T4 and Ex nL IIC T4, per drawing 167536. Always verify compatibility with your specific system before installation.

Frequently Asked Questions

Q: What is the sensitivity of the 190501-11-00-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 cable length is supported without signal degradation?

A: Up to 305 meters (1,000 ft) of cable part number 02173006.

Q: Is the 190501-11-00-CN intrinsically safe?

A: Yes, the 190501 series with agency options 01-04 is rated Ex ia IIC T4 for hazardous locations.

Q: What is the mounting torque requirement?

A: Mounting torque is 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf).

Product Support and Availability

The 190501-11-00-CN is available from Petro Auto Tech. Contact our team for current stock and lead times. We provide fast shipping and dedicated support to keep your operations running.