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

Introduction to the 190501-02-00-00

When machinery vibration threatens uptime, the 190501-02-00-00 from Bently Nevada provides a dependable measurement solution. 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.

This model features a stud mounting option (3/8-in 24 to 1/2-in 20) and a MIL-C-5015 connection interface. The 190501-02-00-00 is built in the U.S.A. and weighs only 0.297 kg, making it easy to handle during installation.

Key Features and Technical Specifications

The 190501-02-00-00 offers a robust set of specifications that support accurate vibration analysis:

• 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.
• Temperature Sensitivity: -8% to +5% typical over the operating temperature range.
• Transverse Response: Less than 5% of axial sensitivity.
• Amplitude Linearity: ±2% to 63.5 mm/s pk (2.5 in/s pk).
• Mounted Resonant Frequency: 9 kHz minimum (stud mounted, except quick disconnect).
• 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).
• Grounding: Internal electronics isolated from case.
• Maximum Cable Length: 305 metres (1,000 ft.) of cable (part number 02173006) with no signal degradation.

These specs highlight the transducer's capability to deliver precise data for predictive maintenance. The wide frequency response captures both low-speed and high-speed machine vibrations effectively.

Applications and Use Cases

In rotating equipment such as pumps, fans, and compressors, the 190501-02-00-00 helps detect imbalance, misalignment, and bearing wear. Maintenance engineers rely on its stable output to trend vibration levels over time. Consequently, they can schedule repairs before catastrophic failure occurs. Moreover, the transducer's rugged design suits harsh environments, including those with high humidity or magnetic fields.

Installation and Setup

Proper mounting is critical for accurate readings. The 190501-02-00-00 uses a stud mount with 3/8-in 24 to 1/2-in 20 threads, ensuring a rigid connection to the machine surface. Apply the recommended mounting torque of 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf) to avoid resonance issues. The transducer can be oriented in any direction, simplifying installation in tight spaces. For best results, mount it directly on the bearing housing or other solid structural point.

Maintenance and Reliability

Routine inspection of the transducer and its cable ensures long-term reliability. Check the connector for corrosion or damage, especially in condensing humidity conditions. The 316L stainless steel case provides excellent corrosion resistance, but periodic cleaning with a soft cloth is advisable. Verify the output bias voltage periodically; a deviation from 10.1 Vdc ± 1.0 Vdc may indicate internal issues. Following these simple steps helps maintain measurement accuracy and extends service life.

Compatibility and Integration

The 190501-02-00-00 is designed to work with Bently Nevada monitoring systems that accept velocity transducer inputs. Its MIL-C-5015 connection interface ensures a secure, standardized link. With a maximum cable length of 305 metres, you can place the transducer far from the monitoring equipment without signal loss. This flexibility supports a wide range of plant layouts.

Troubleshooting Common Issues

If readings appear erratic, first check the mounting torque and ensure the stud is tight. Loose mounting can introduce spurious vibrations. Next, inspect the cable for cuts or abrasions; replace if damaged. Also, verify that the output bias voltage is within spec. If the signal is noisy, confirm that the transducer is not exposed to excessive magnetic fields—the specified susceptibility is <0.0068 mm/s/gauss at 50 gauss, 50-60 Hz.

FAQ about the 190501-02-00-00

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

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 190501-02-00-00 be mounted in any orientation?

A: Yes, the transducer can be mounted in any orientation, offering flexibility during installation.

Q: What is the operating temperature range?

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

Q: Does the 190501-02-00-00 have agency approvals?

A: This specific model (option 00) has no agency approvals. Other options (01-04) offer intrinsic safety approvals.

Product Support and Availability

The 190501-02-00-00 is available through Petro Auto Tech, your trusted industrial automation parts supplier. In stock and ready to ship, this transducer can be ordered now. For technical assistance or lifecycle status, contact Petro Auto Tech for prompt support.