190501-08-00-00 | Bently Nevada 3.94 mV/mm/s Velomitor CT Transducer

Introduction to the Bently Nevada 190501-08-00-00

When machine vibration threatens uptime, the 190501-08-00-00 from Bently Nevada provides the precise measurement you need. This Velomitor CT velocity transducer is engineered for industrial rotating machinery, offering a sensitivity of 3.94 mV/mm/s (100 mV/in/s) with ±5% accuracy. Its robust design ensures dependable performance in harsh environments, making it a trusted choice for condition monitoring.

Key Features and Technical Specifications

The 190501-08-00-00 is packed with features that enhance reliability and ease of integration. Here are the core specs:

• 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).
• 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.
• Magnetic Field Susceptibility: <0.0068 mm/s/gauss (0.268 mil/s/gauss) @ 50 gauss, 50-60Hz.
• Weight: <297 g (10.5 oz.), typical.
• Mounting Surface: 33 mm diameter (1.3 in diameter).
• Height: 82 mm (3.2 in).
• Case Material: 316L stainless steel.
• Connector: 2-pin 316L stainless steel MIL-C-5015, top.
• Mounting Torque: 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf).

One standout feature is the mounted resonant frequency of 9 kHz minimum (stud mounted, except quick disconnect), which ensures accurate measurement even in high-frequency vibration environments. This makes the 190501-08-00-00 particularly effective for detecting early bearing faults and gear mesh issues.

Applications and Use Cases

This transducer is ideal for vibration monitoring on pumps, fans, motors, and other rotating equipment. Its wide frequency response and robust construction make it suitable for both normal and demanding industrial settings. For example, in a chemical plant, the 190501-08-00-00 can continuously monitor a critical pump, alerting operators to abnormal vibration before failure occurs. This proactive approach minimizes downtime and extends equipment life.

Installation and Setup

Mounting the 190501-08-00-00 is straightforward. The plate stud mounting option (3/8-in 24 to 1/2-in 20) allows secure attachment to the machine surface. Apply the specified mounting torque of 4.5 N-m ± 0.6 N-m to ensure proper coupling. The transducer can be oriented at any angle, providing flexibility in tight spaces. For best results, mount it directly on the bearing housing or other rigid machine surface, and use the recommended cable (part number 02173006) for optimal signal integrity.

Maintenance and Reliability

Routine inspection is essential to maintain accuracy. Periodically check the mounting integrity and cable condition. The 316L stainless steel case resists corrosion, and the internal electronics are isolated from the case, reducing ground loop issues. With no moving parts, the Velomitor CT design offers long-term reliability, reducing the total cost of ownership. Regular verification of the output bias voltage can help detect potential issues early.

Compatibility and Integration

The 190501-08-00-00 uses a MIL-C-5015 connection interface, ensuring compatibility with standard Bently Nevada monitoring systems. It can be integrated with vibration monitors, data collectors, and online condition monitoring systems. The transducer's low output impedance (<400 Ω) allows for long cable runs without signal degradation, making it suitable for large facilities.

Common Questions About the 190501-08-00-00

Q: What is the sensitivity of the 190501-08-00-00?

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

Q: What is the operating temperature range?

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

Q: What is the maximum cable length?

A: Up to 305 metres (1,000 ft.) with cable part number 02173006, with no signal degradation.

Q: Is the transducer intrinsically safe?

A: This specific model (Agency Approval Option 00) has no approvals. For intrinsically safe versions, refer to options 01 through 04.

Q: What is the mounting torque requirement?

A: Apply 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf).

Product Support and Availability

The 190501-08-00-00 is available from Petro Auto Tech, a trusted industrial automation parts supplier. We ensure prompt delivery and competitive pricing. Contact our team for availability and lead times. Please verify the current lifecycle status and availability with Petro Auto Tech before ordering.