190501-02-00-00 | Bently Nevada Velomitor CT Velocity Transducer

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

When rotating machinery experiences unexpected vibration, unplanned downtime can quickly escalate. The 190501-02-00-00 from Bently Nevada provides a dependable solution for continuous velocity monitoring. This Velomitor CT Velocity Transducer is engineered for industrial environments where accuracy and durability matter.

With a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%, the transducer delivers precise vibration data. Its frequency response spans 3.0 Hz to 900 Hz (180 to 54,000 cpm) ±1.0 dB, making it suitable for a wide range of rotating equipment. The 190501-02-00-00 is built to perform in demanding conditions, from extreme temperatures to high shock environments.

Key Features and Technical Specifications

The 190501-02-00-00 offers several standout features that enhance its reliability and ease of use:

• Output Bias Voltage: 10.1 Vdc ± 1.0 Vdc, Pin A referenced to Pin B.
• Dynamic Output Impedance: Less than 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 are isolated from case.
• 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).
• Storage Temperature: -40°C to +100°C (-40°F to +212°F).
• Shock Limit: 5000 g pk, maximum.
• Humidity Limit: 100% condensing, non-submerged.
• Magnetic Field Susceptibility: <0.0068 mm/s/gauss (0.268 mil/s/gauss) @ 50 gauss, 50-60Hz.
• Mounting Torque: 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf).
• Case Material: 316L stainless steel.

One distinctive spec is the mounted resonant frequency of 9 kHz minimum (stud mounted, except quick disconnect). This high resonant frequency ensures accurate measurement across the operating range without interference from structural resonances.

Applications and Use Cases

The 190501-02-00-00 is ideal for vibration monitoring on pumps, fans, compressors, and other rotating machinery. Its robust design allows installation in harsh environments, including areas with high humidity or magnetic fields. For example, in a petrochemical plant, the transducer can monitor critical pumps, providing early warning of bearing wear or imbalance. This proactive approach reduces maintenance costs and prevents catastrophic failures.

Installation and Setup

Proper installation is crucial for accurate measurements. The transducer mounts using a stud 3/8-in 24 to 1/2-in 20 (Mounting Hardware Option 02). The connection interface is MIL-C-5015 (Connection Option 00). Ensure the mounting surface is clean and flat, and apply the specified torque of 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 optimal signal integrity, use the recommended cable (part number 02173006) up to 305 metres (1,000 ft.) without degradation. Verify that the polarity is correct: Pin A goes positive with respect to Pin B when velocity is from base to top of the transducer.

Maintenance and Reliability

The 190501-02-00-00 is designed for long-term reliability. Its 316L stainless steel case resists corrosion, and the internal electronics are isolated from the case, reducing ground loop issues. Regular inspection per the manufacturer's manual is recommended to ensure the transducer remains securely mounted and the cable is undamaged. Because the transducer has no moving parts, maintenance is minimal, contributing to lower total cost of ownership.

Compatibility and Integration

The transducer's output is a standard velocity signal, compatible with most Bently Nevada monitoring systems. The MIL-C-5015 connector ensures a secure, industry-standard connection. For integration with existing systems, verify that the input impedance of the monitor matches the transducer's output impedance (<400 Ω typical).

Troubleshooting and Common Issues

If the transducer output appears noisy or erratic, check the cable for damage and ensure proper grounding. Verify that the mounting torque is within specification. If the signal is absent, confirm that the bias voltage is present (10.1 Vdc ± 1.0 Vdc). For persistent issues, consult the official Bently Nevada documentation or contact Petro Auto Tech for assistance.

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?

A: The maximum cable length is 305 metres (1,000 ft.) using cable part number 02173006.

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 is the mounting torque?

A: The recommended mounting torque is 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf).

Q: Is the transducer intrinsically safe?

A: This specific model (Agency Approval Option 00) has no approvals. Versions with approvals 01-04 are intrinsically safe Ex ia IIC T4.

Product Support and Availability

The 190501-02-00-00 is available through Petro Auto Tech, an industrial automation parts supplier. In stock and ready to ship, this transducer can be ordered with confidence. For lifecycle status and availability, please contact Petro Auto Tech before ordering.