190501-10-00-02 | Bently Nevada 3.94 mV/mm/s Velocity Transducer

Introduction to the Bently Nevada 190501-10-00-02

When rotating machinery experiences unexpected vibration, unplanned downtime and costly repairs often follow. The 190501-10-00-02 from Bently Nevada provides a dependable solution for continuous velocity monitoring. This Velomitor CT velocity transducer is engineered to capture accurate vibration data in demanding industrial environments.

With a sensitivity of 3.94 mV/mm/s (±5%), the transducer converts mechanical motion into a clear electrical signal. Its robust 316L stainless steel case and MIL-C-5015 connector ensure durability and secure installation. Whether used in predictive maintenance programs or permanent monitoring systems, this transducer supports operational reliability.

Key Features and Technical Specifications

The 190501-10-00-02 offers a range of performance parameters that suit critical machinery protection applications. Below are the core specifications extracted directly from the product data:

• 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).
• Grounding: Internal electronics isolated from case.
• Maximum Cable Length: 305 metres (1,000 ft.) of cable (part number 02173006) with no signal degradation.

These specifications highlight the transducer's ability to deliver precise velocity measurements across a wide frequency range. The low base strain sensitivity minimizes errors from mounting surface strain, which is a common issue in industrial installations.

Applications and Use Cases

The 190501-10-00-02 is suitable for monitoring vibration on pumps, fans, compressors, and other rotating equipment. In predictive maintenance programs, accurate velocity data helps identify bearing wear, unbalance, and misalignment before they lead to failure. The transducer's frequency response covers typical machine vibration frequencies, making it versatile for many asset types.

Additionally, the transducer's intrinsic safety approvals (Ex ia IIC T4, AEx ia IIC T4) allow installation in hazardous areas with Class I, Division 1, Groups A, B, C, D; Class II, Groups E, F, G; and Class III. This compliance supports use in oil and gas, chemical, and other process industries where explosive atmospheres are a concern.

Installation and Mounting

Proper installation is critical for accurate vibration measurement. The 190501-10-00-02 includes a mounting hardware option with a plate stud M6x1 to M6x1 and a 3/8-24 adapter. The recommended mounting torque is 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.

For hazardous area installations, follow the instructions in drawing 167536 as specified in the agency approval documentation. Ensure the mounting surface is clean and flat to achieve optimal frequency response. The transducer's mounting surface diameter is 33 mm (1.3 in), and its height is 82 mm (3.2 in).

Maintenance and Reliability

Regular inspection of the transducer and its mounting is recommended to maintain reliable performance. Check for any signs of physical damage or loosening of the mounting stud. Verify that the cable connections are secure and that the connector remains clean and free from corrosion.

The transducer's 316L stainless steel case provides excellent corrosion resistance, making it suitable for harsh environments. With a shock limit of 5000 g pk and an operating temperature range of -40°C to +85°C, the 190501-10-00-02 is built to withstand demanding conditions. Periodic verification of output bias voltage and sensitivity can help detect any drift over time.

Compatibility and Integration

The 190501-10-00-02 uses a MIL-C-5015 connection interface, which is a standard in industrial vibration monitoring. This allows integration with Bently Nevada monitoring systems and other compatible data acquisition equipment. The internal electronics are isolated from the case, reducing the risk of ground loops and electrical interference.

For long cable runs, the transducer supports up to 305 metres (1,000 ft.) of cable (part number 02173006) without signal degradation. This is particularly useful when the monitoring equipment is located in a control room away from the machine.

Common Questions About the 190501-10-00-02

Q: What is the sensitivity of the 190501-10-00-02?

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

Q: Can the transducer be used in hazardous areas?

A: Yes, it has intrinsic safety approvals including Ex ia IIC T4 and AEx 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 no degradation of signal.

Q: What is the operating temperature range?

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

Q: What mounting torque is recommended?

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 190501-10-00-02 is available through Petro Auto Tech, a trusted industrial automation parts supplier. Contact Petro Auto Tech for current pricing, lead times, and technical support. Ensure you verify the product's lifecycle status and availability before ordering.