190501-07-00-04 | Bently Nevada 100 mV/in/s Velocity Transducer

Introduction to the Bently Nevada 190501-07-00-04

When rotating machinery experiences unexpected vibration, unplanned downtime can cost thousands per hour. The 190501-07-00-04 from Bently Nevada provides a dependable solution for continuous velocity monitoring. This Velomitor CT velocity transducer converts mechanical vibration into an electrical signal, enabling early detection of bearing wear, imbalance, and misalignment.

Engineered for harsh industrial environments, this transducer features a 316L stainless steel case and a MIL-C-5015 connection interface. With a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%, it delivers accurate, repeatable measurements. The 190501-07-00-04 is part of the trusted Bently Nevada Velomitor family, known for reliability in critical machinery protection.

Key Features and Technical Specifications

The 190501-07-00-04 offers a robust set of specifications designed for demanding applications. Below are the essential parameters:

• 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: 0.229 mm/s (0.009 in/s) pk
• Base Strain Sensitivity: 0.43 mm/s/μstrain (0.017 in/s/μstrain)
• Mounted Resonant Frequency: 9 kHz minimum (stud mounted)
• 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
• Case Material: 316L stainless steel
• Weight: <297 g (10.5 oz.)

One distinctive feature is the base strain sensitivity of 0.43 mm/s/μstrain. This means the transducer minimizes false readings caused by mechanical strain on the mounting surface, ensuring signal integrity even when the machine case flexes.

Applications and Use Cases

The 190501-07-00-04 is ideal for vibration monitoring on pumps, fans, compressors, motors, and turbines. Its wide frequency response captures both low-speed and high-speed machine dynamics. In petrochemical plants, the intrinsically safe approvals (Ex ia IIC T4) allow installation in hazardous areas. For predictive maintenance programs, this transducer provides the data needed to schedule repairs before catastrophic failure occurs.

Additionally, the transducer's robust design suits outdoor installations, where temperature extremes and moisture are common. Its 100% condensing humidity rating ensures reliable operation in wet environments.

Installation and Mounting

Proper installation is critical for accurate vibration measurement. The 190501-07-00-04 comes with a plate stud mounting option (3/8-in 24 to 3/8-in 24). Apply the recommended mounting torque of 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf) to ensure a rigid connection. The transducer can be mounted in any orientation, simplifying installation in tight spaces.

For wiring, use the MIL-C-5015 connection interface. The maximum cable length is 305 meters (1,000 ft.) with part number 02173006, allowing remote monitoring without signal degradation. Always follow the manufacturer's installation drawing (167536) for hazardous area installations.

Maintenance and Reliability

Because the 190501-07-00-04 has no moving parts, it requires minimal maintenance. However, periodic inspection of the mounting stud and cable connections is recommended to ensure they remain tight and corrosion-free. The 316L stainless steel case resists corrosion, extending service life in harsh environments.

Given its high shock limit (5000 g pk) and wide temperature range, this transducer is built for long-term reliability. Regular calibration checks, as per your plant's vibration monitoring program, will maintain measurement accuracy.

Compatibility and Integration

The 190501-07-00-04 is compatible with Bently Nevada vibration monitoring systems and most industrial data acquisition systems that accept standard velocity transducer signals. Its 100 mV/in/s sensitivity is a common industry standard, making integration straightforward. The output bias voltage of 10.1 Vdc is typical for such transducers, ensuring compatibility with standard condition monitoring modules.

Frequently Asked Questions

Q: What is the sensitivity of the 190501-07-00-04?

A: The sensitivity is 3.94 mV/mm/s (100 mV/in/s) ±5%, providing accurate velocity measurements.

Q: Can the 190501-07-00-04 be used in hazardous areas?

A: Yes, the 190501-07-00-04 has agency approvals for intrinsically safe use (Ex ia IIC T4) and non-incendive (Ex nA T4) applications.

Q: What is the maximum cable length for this transducer?

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

Q: What is the operating temperature range?

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

Q: How should the transducer be mounted?

A: Use the plate stud mounting option (3/8-in 24 thread) and tighten to 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf).

Product Support and Availability

The Bently Nevada 190501-07-00-04 is available through Petro Auto Tech. Contact our team for current pricing and lead times. We are a trusted supplier of industrial automation parts, ensuring genuine products and reliable service.