190501-08-00-00 | Bently Nevada 100 mV/in/s Velocity Transducer

Introduction to the 190501-08-00-00 Velomitor CT

When rotating machinery begins to vibrate unexpectedly, the 190501-08-00-00 from Bently Nevada provides the accurate velocity data you need to diagnose issues before they escalate. This Velomitor CT velocity transducer is engineered for industrial environments where reliability and precision are non-negotiable.

As part of the trusted Bently Nevada family, this transducer converts mechanical vibration into an electrical signal that monitoring systems can interpret. With a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%, it captures even subtle changes in machine health.

Key Features & Technical Specifications

The 190501-08-00-00 is built to perform under demanding conditions. Here are the core specifications you can rely on:

• 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 the 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 are isolated from case
• Maximum Cable Length: 305 metres (1,000 ft.) of cable (part number 02173006) with no degradation of signal

One standout feature is the output bias voltage of 10.1 Vdc, which ensures a stable signal even over long cable runs. This makes the transducer ideal for installations where the monitoring system is located far from the machinery.

Environmental Durability

The 190501-08-00-00 is designed to withstand harsh industrial environments. Its operating temperature range of -40°C to +85°C (-40°F to +185°F) and storage range of -40°C to +100°C (-40°F to +212°F) ensure reliable performance in extreme conditions.

With a shock limit of 5000 g pk maximum and a humidity limit of 100% condensing (non-submerged), this transducer can handle the physical stresses of rotating equipment. Additionally, its magnetic field susceptibility is less than 0.0068 mm/s/gauss (0.268 mil/s/gauss) at 50 gauss, 50-60 Hz, minimizing interference from nearby electrical equipment.

Mechanical Specifications & Mounting

The transducer's mechanical design simplifies installation. It weighs less than 297 g (10.5 oz.) and features a mounting surface of 33 mm diameter (1.3 in diameter) with a height of 82 mm (3.2 in). The case and connector are made from 316L stainless steel, ensuring corrosion resistance in demanding environments.

The mounting hardware option for this model is a plate stud 3/8-in 24 to 1/2-in 20, and the connection interface is MIL-C-5015. The recommended mounting torque is 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf). The transducer can be mounted in any orientation, and the polarity is defined: Pin A goes positive with respect to Pin B when velocity is from base to top of the transducer.

Applications & Use Cases

The 190501-08-00-00 is suitable for a wide range of vibration monitoring applications, including fans, pumps, motors, and other rotating machinery. Its frequency response covers the typical operating speeds of most industrial equipment, making it a versatile choice for predictive maintenance programs.

For example, in a chemical plant where pumps operate continuously, this transducer can detect early signs of bearing wear or imbalance. By providing accurate velocity data, it enables maintenance teams to schedule repairs during planned downtime, reducing costly unplanned outages.

Installation & Setup

Proper installation is critical to achieving accurate measurements. When mounting the 190501-08-00-00, ensure the mounting surface is clean and flat. Apply the recommended torque of 4.5 N-m ± 0.6 N-m to secure the stud without over-tightening.

The MIL-C-5015 connection interface provides a secure and reliable electrical connection. For best results, use the specified cable (part number 02173006) and keep the cable length within the 305-metre (1,000 ft.) limit to avoid signal degradation.

Maintenance & Reliability

Regular inspection of the transducer and its mounting is recommended to ensure long-term reliability. Check for any signs of physical damage or corrosion, especially in harsh environments. Verify that the mounting torque remains within specification, as vibration can loosen connections over time.

The 316L stainless steel construction minimizes corrosion, but periodic checks are still advisable. By incorporating the 190501-08-00-00 into your routine maintenance schedule, you can extend the life of both the transducer and the machinery it monitors.

Compatibility & Integration

The 190501-08-00-00 is designed to work seamlessly with Bently Nevada monitoring systems. Its output bias voltage and dynamic output impedance are optimized for compatibility with standard vibration monitoring equipment.

For integration into existing systems, consult the official Bently Nevada documentation or contact Petro Auto Tech for guidance. Our team can help you determine if this transducer is the right fit for your application.

FAQ about the 190501-08-00-00

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

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

What is the maximum cable length for this transducer?

The maximum cable length is 305 metres (1,000 ft.) using cable part number 02173006, with no signal degradation.

What are the operating temperature limits?

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

What mounting hardware is included?

This model includes a plate stud 3/8-in 24 to 1/2-in 20 mounting option.

Is the transducer intrinsically safe?

This specific configuration (Agency Approval Option 00) has no approvals. Other options may offer intrinsic safety.

Product Support & Availability

The 190501-08-00-00 is available through Petro Auto Tech. Contact us for current availability and lead times. Our team is ready to assist with your order and provide technical support as needed.