190501-07-00-01 | Bently Nevada 3.94 mV/mm/s Velocity Transducer

Introduction to the Bently Nevada 190501-07-00-01

When machine vibration threatens uptime, the 190501-07-00-01 from Bently Nevada provides the precise measurement you need. This Velomitor CT velocity transducer is engineered for continuous monitoring in demanding industrial environments. With a sensitivity of 3.94 mV/mm/s (±5%), it converts mechanical velocity into a clear electrical signal.

The transducer's robust design includes a 316L stainless steel case and a MIL-C-5015 connection interface. It is made in the U.S.A. and weighs only 0.297 kg, making it easy to install in tight spaces. For maintenance engineers, this means dependable data for predictive maintenance programs.

Key Features and Technical Specifications

The 190501-07-00-01 offers several performance parameters that matter for vibration monitoring:

• 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.) of cable (part number 02173006) with no signal degradation.
• Operating Temperature: -40°C to +85°C (-40°F to +185°F).
• Shock Limit: 5000 g pk, maximum.
• Humidity Limit: 100% condensing, non-submerged.

These specs ensure accurate velocity readings even in harsh conditions. The transducer also features internal electronics isolated from the case, reducing ground loop issues.

Applications and Use Cases

In rotating machinery, the 190501-07-00-01 excels at monitoring shaft and casing vibration. It is suitable for fans, pumps, motors, and gearboxes where early fault detection prevents costly failures. Its wide frequency range captures both low-speed and high-speed events.

For example, in a paper mill, the transducer can monitor dryer rolls to detect bearing wear before it causes unplanned downtime. Similarly, in a petrochemical plant, it helps track compressor health, supporting condition-based maintenance strategies.

Installation and Setup

Mounting the 190501-07-00-01 is straightforward with the plate stud option (3/8-in 24 to 3/8-in 24). The recommended mounting torque is 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf). The transducer can be oriented in any direction, simplifying installation in confined areas.

Ensure the mounting surface is clean and flat for optimal coupling. Use the specified cable (part number 02173006) to maintain signal integrity up to 305 metres. Always follow the manufacturer's manual for wiring and grounding details.

Maintenance and Reliability

Regular inspection of the transducer and its cable is essential. Check for physical damage, loose connections, and signs of corrosion. The 316L stainless steel case resists harsh environments, but periodic verification of output bias voltage ensures consistent performance.

Because the internal electronics are isolated from the case, the risk of ground loops is minimized, enhancing reliability. With proper care, this transducer provides years of accurate vibration data, reducing maintenance costs and improving plant safety.

Compatibility and Integration

The 190501-07-00-01 is designed to work with Bently Nevada monitoring systems. Its standard MIL-C-5015 connector allows easy integration with existing cabling. The transducer's output is a voltage signal proportional to velocity, compatible with most vibration monitors and data collectors.

For new installations, verify that the monitoring system accepts the 10.1 Vdc bias and 3.94 mV/mm/s sensitivity. This ensures accurate readings and seamless data acquisition.

FAQ about the 190501-07-00-01

Q: What is the sensitivity of the 190501-07-00-01?

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

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

A: You can use up to 305 metres (1,000 ft.) of cable (part number 02173006) without signal degradation.

Q: Can the transducer operate in high-humidity environments?

A: Yes, it withstands 100% condensing humidity, but it must not be submerged.

Q: What is the operating temperature range?

A: It operates from -40°C to +85°C (-40°F to +185°F).

Product Support and Availability

At Petro Auto Tech, we stock the 190501-07-00-01 and can provide technical support. Contact us to verify availability and lifecycle status before ordering. We are committed to helping you maintain reliable operations.