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

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

When machinery vibration threatens uptime, the 190501-00-00-00 from Bently Nevada provides precise, continuous monitoring. This Velomitor CT velocity transducer is engineered for industrial environments where accuracy and durability are non-negotiable. With a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%, it captures critical vibration data that helps prevent unplanned downtime.

Part of the trusted Bently Nevada family, the 190501-00-00-00 is built to perform in demanding applications. Its 316L stainless steel case and MIL-C-5015 connection interface ensure long-term reliability. Whether you are monitoring pumps, motors, or fans, this transducer delivers the data you need to make informed maintenance decisions.

Key Features and Technical Specifications

The 190501-00-00-00 offers a robust set of specifications designed for real-world vibration monitoring. Here are the essential parameters:

• 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 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 specifications highlight the transducer's capability to deliver accurate, repeatable measurements across a wide frequency range. The low output impedance ensures signal integrity even over long cable runs, making it suitable for remote monitoring installations.

Environmental Durability and Mechanical Design

The 190501-00-00-00 is built to withstand harsh industrial conditions. Its environmental limits include:

• 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

Mechanically, the transducer is compact and rugged. It weighs less than 297 g (10.5 oz.), with a mounting surface of 33 mm diameter (1.3 in) and a height of 82 mm (3.2 in). The case is made of 316L stainless steel, and the connector is a 2-pin 316L stainless steel MIL-C-5015 top-mounted design. The mounting torque is 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf), and the transducer can be mounted in any orientation. Polarity is defined: Pin A goes positive with respect to Pin B when velocity is from base to top.

Applications and Use Cases

The 190501-00-00-00 is ideal for vibration monitoring on rotating machinery such as motors, pumps, compressors, and fans. Its wide frequency response and high sensitivity make it suitable for both low-speed and high-speed equipment. In addition, the transducer's robust construction ensures reliable operation in harsh environments, including those with high humidity or temperature extremes.

For example, in a chemical processing plant, the 190501-00-00-00 can be installed on critical pumps to detect early signs of bearing wear or imbalance. By catching these issues early, maintenance teams can schedule repairs during planned outages, avoiding costly unplanned downtime. This proactive approach not only saves money but also extends the life of the equipment.

Installation and Setup

Installing the 190501-00-00-00 is straightforward. The transducer can be mounted in any orientation, providing flexibility in tight spaces. The mounting surface is 33 mm in diameter, and the recommended mounting torque is 4.5 N-m ± 0.6 N-m (40 in-lbf ± 5 in-lbf). Ensure the mounting surface is clean and flat to achieve optimal coupling.

The connection interface is a MIL-C-5015 connector, which provides a secure and reliable electrical connection. The internal electronics are isolated from the case, reducing the risk of ground loops. For best results, use the specified cable (part number 02173006) up to 305 metres (1,000 ft.) without signal degradation.

Maintenance and Reliability

Regular inspection of the transducer and its mounting is recommended to ensure accurate readings. Check for any signs of physical damage or corrosion, especially in harsh environments. The 316L stainless steel case provides excellent corrosion resistance, but periodic checks are still advisable.

Because the transducer has no moving parts, it requires minimal maintenance. However, verifying the output bias voltage (10.1 Vdc ± 1.0 Vdc) can help confirm proper operation. If readings seem erratic, check the cable and connections for damage.

Compatibility and Integration

The 190501-00-00-00 is designed to work with Bently Nevada monitoring systems and other compatible vibration monitoring equipment. Its standard MIL-C-5015 connector and 100 mV/in/s sensitivity make it a versatile choice for retrofitting existing installations.

For seamless integration, ensure that the monitoring system is configured to accept the transducer's sensitivity and frequency response characteristics. The transducer's low output impedance (<400 Ω) allows for long cable runs without signal loss, making it suitable for distributed monitoring architectures.

Troubleshooting Common Issues

If the transducer fails to provide a signal, first check the cable and connections. Ensure that the connector is properly seated and that there is no damage to the pins. Verify that the output bias voltage is within the specified range (10.1 Vdc ± 1.0 Vdc). If the bias voltage is incorrect, the transducer may need replacement.

Another common issue is mounting resonance. To avoid this, ensure that the transducer is mounted securely and that the resonant frequency (9 kHz minimum) is not excited by the machinery's operating frequency. If resonance is suspected, consider using a different mounting method or adding damping.

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

A: The 190501-00-00-00 with agency approval options 01 through 04 has intrinsic safety certifications (Ex ia IIC T4, AEx ia IIC T4). However, this specific model (option 00) has no approvals, so verify the required certification for your application.

Q: What is the maximum cable length for the 190501-00-00-00?

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

Q: What is the operating temperature range?

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

Product Support and Availability

The 190501-00-00-00 is available from Petro Auto Tech, a trusted industrial automation parts supplier. We ensure prompt delivery and competitive pricing. Contact Petro Auto Tech for current availability and lead times.