190501-11-00-04 | Bently Nevada Velomitor CT Velocity Transducer

Introduction to the Bently Nevada 190501-11-00-04

When machinery vibration threatens uptime, the 190501-11-00-04 from Bently Nevada provides a dependable measurement solution. This Velomitor CT velocity transducer converts mechanical motion into an electrical signal for predictive maintenance. Its robust design suits demanding industrial environments.

Engineers choose this transducer for its accuracy and durability. The unit is manufactured in the U.S.A. and carries the part number 190501-11-00-04. It features a plate stud mounting option and a MIL-C-5015 connection interface.

Key Features and Technical Specifications

The 190501-11-00-04 offers several performance characteristics that support precise vibration monitoring. Below are the core specifications extracted from the official datasheet.

• Electrical 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 Noise: 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 cable.
• Operating Temperature: -40°C to +85°C (-40°F to +185°F).
• Storage Temperature: -40°C to +100°C (-40°F to +212°F).
• Shock Limit: 5000 g pk, maximum.
• Humidity Limit: 100% condensing, non-submerged.
• Magnetic Field Susceptibility: <0.0068 mm/s/gauss (0.268 mil/s/gauss) @ 50 gauss, 50-60 Hz.
• Weight: <297 g (10.5 oz.), typical.
• Case Material: 316L stainless steel.
• Connector: 2-pin 316L stainless steel MIL-C-5015, top.
• Mounting Torque: 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf).
• Polarity: Pin A goes positive with respect to Pin B when velocity is from base to top.
• Mounting Angle: Any orientation.

These specifications make the 190501-11-00-04 suitable for a wide range of rotating machinery monitoring tasks. The high shock limit and wide temperature range enhance reliability in harsh conditions.

Applications and Use Cases

The 190501-11-00-04 is ideal for monitoring vibration on pumps, motors, fans, and other rotating equipment. Its frequency response covers typical machine speeds, enabling early detection of imbalance, misalignment, or bearing wear. Because the transducer is intrinsically safe (Ex ia IIC T4), it can be installed in hazardous areas such as Class I, Division 1 locations. This makes it a valuable tool for oil and gas, chemical, and power generation facilities.

For example, in a refinery, the transducer can be mounted on a critical pump to provide continuous vibration data. This data helps maintenance teams schedule repairs before a failure occurs, reducing unplanned downtime. Furthermore, its 316L stainless steel case resists corrosion, extending service life in aggressive environments.

Installation and Setup

Proper installation is essential for accurate readings. The 190501-11-00-04 comes with a mounting hardware option of a plate stud (3/8-in 24 to 1/4-in 28). Follow the manufacturer's recommended mounting torque of 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf). The transducer can be mounted in any orientation, offering flexibility in tight spaces.

Use the specified MIL-C-5015 connection interface for reliable electrical connection. Ensure that the cable length does not exceed 305 metres (1,000 ft.) to avoid signal degradation. For hazardous area installations, refer to drawing 167536 for proper wiring and installation practices.

Maintenance and Reliability

Routine inspection of the transducer and its mounting is recommended to ensure long-term performance. Check for any signs of physical damage or corrosion, especially in harsh environments. The internal electronics are isolated from the case, which reduces the risk of ground loops and improves signal integrity.

Given its robust design, the 190501-11-00-04 offers excellent reliability. The 5000 g shock limit ensures it withstands severe mechanical shocks. Regular verification of the output bias voltage (10.1 Vdc ± 1.0 Vdc) can help confirm proper operation. For detailed maintenance procedures, consult the official Bently Nevada documentation.

Compatibility and Integration

The 190501-11-00-04 is designed to work with Bently Nevada vibration monitoring systems. Its standard 100 mV/in/s sensitivity makes it compatible with many data collectors and online monitoring systems. The transducer outputs a dynamic signal that can be processed by condition monitoring software.

Because it is a velocity transducer, it provides a direct velocity output without requiring external integrators. This simplifies integration into existing monitoring architectures. Always verify compatibility with your specific monitoring system before installation.

Frequently Asked Questions

Q: What is the sensitivity of the 190501-11-00-04?

A: The electrical sensitivity is 3.94 mV/mm/s (100 mV/in/s) ±5%.

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 transducer intrinsically safe?

A: Yes, it is certified as Ex ia IIC T4 for Class I, Division 1, Groups A, B, C, D.

Q: What is the maximum cable length?

A: The maximum cable length is 305 metres (1,000 ft.) with part number 02173006 cable.

Q: What is the mounting torque requirement?

A: The recommended mounting torque is 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf).

Product Support and Availability

The 190501-11-00-04 is available through Petro Auto Tech, an industrial automation parts supplier. We maintain a stock of this transducer to support your maintenance needs. Contact our team for current pricing and lead times. Please verify the current lifecycle status and availability with Petro Auto Tech before ordering.