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

Introduction to the 190501-00-00-00

When machinery vibration threatens uptime, the 190501-00-00-00 from Bently Nevada provides the precise measurement you need. This Velomitor CT Velocity Transducer is engineered for continuous monitoring in demanding industrial environments. Its robust design and consistent performance make it a trusted choice for maintenance teams focused on reliability.

Key Features and Technical Specifications

The 190501-00-00-00 offers a range of specifications that support accurate vibration analysis. Key parameters include:

• 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 operating 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)
• 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 enable precise vibration monitoring, helping you detect issues before they escalate. The wide frequency response covers typical machine speeds, while the low transverse response minimizes errors from cross-axis motion.

Applications and Use Cases

Maintenance engineers rely on the 190501-00-00-00 for rotating equipment such as pumps, motors, and fans. Its rugged construction suits harsh environments, including those with high humidity or magnetic fields. For example, in a chemical plant, the transducer's intrinsic safety options (when specified) allow installation in hazardous areas, enhancing safety and uptime. Moreover, its consistent sensitivity simplifies trend analysis, supporting predictive maintenance strategies.

Installation and Setup

Proper mounting is critical for accurate readings. The 190501-00-00-00 offers a no-stud option (Mounting Hardware Option 00) and a MIL-C-5015 connection interface. Follow these steps:

• Ensure the mounting surface is clean and flat (33 mm diameter).
• Apply the recommended mounting torque of 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf).
• Orient the transducer as needed; any orientation is acceptable.
• Connect Pin A and Pin B per the polarity note: Pin A goes positive with respect to Pin B when velocity is from base to top.

Always refer to the installation drawing (e.g., 167536 for approved options) to meet safety requirements.

Maintenance and Reliability

To ensure long-term reliability, inspect the transducer periodically. Check for physical damage, loose mounting, or cable wear. The 316L stainless steel case resists corrosion, but regular visual checks help catch issues early. Because the electronics are internally grounded and isolated, there is minimal risk of ground loops. For best results, verify output bias voltage periodically to confirm proper operation.

Compatibility and Integration

The 190501-00-00-00 connects via a standard MIL-C-5015 interface, making it compatible with many Bently Nevada monitoring systems. The maximum cable length of 305 meters allows flexible placement. However, always use the specified cable (part number 02173006) to maintain signal integrity.

Troubleshooting and Common Issues

If readings seem off, check the following:

• Verify that the transducer is securely mounted and not loose.
• Inspect the cable for cuts or damage.
• Measure the output bias voltage; it should be 10.1 Vdc ± 1.0 Vdc.
• Confirm that the mounting surface is flat and free of debris.

These steps resolve most issues without removing the transducer.

FAQ about the 190501-00-00-00

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

A: The 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: Can the 190501-00-00-00 be used in hazardous areas?

A: This version (Agency Approval Option 00) has no approvals. Models with options 01-04 offer intrinsic safety ratings, but this specific unit does not.

Q: What is the maximum cable length?

A: Up to 305 metres (1,000 ft.) with cable part number 02173006.

Product Support and Availability

The 190501-00-00-00 is available from Petro Auto Tech. Contact our team for current stock and lead times. We are ready to support your maintenance needs.