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

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

When machine 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 industrial rotating equipment, delivering consistent performance across a wide temperature range. With a sensitivity of 3.94 mV/mm/s (±5%), it offers accurate velocity readings for predictive maintenance programs.

This model features a MIL-C-5015 connection interface and a 316L stainless steel case, ensuring durability in harsh environments. The 190501-00-00-00 is part of Bently Nevada's trusted Velomitor family, known for reliability in critical machinery monitoring.

Key Features and Technical Specifications

Every specification of the 190501-00-00-00 is designed to support accurate vibration analysis. Below are the core 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 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 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 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, 50-60 Hz
• 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)
• Polarity: Pin A goes positive with respect to Pin B when velocity is from base to top
• Mounting Angle: Any orientation

One standout feature is the broadband noise floor of 0.229 mm/s pk, which ensures that even small vibration signals are not masked by electronic noise. This makes the 190501-00-00-00 ideal for early fault detection in rotating machinery.

Applications and Use Cases

The 190501-00-00-00 is suited for a variety of industrial vibration monitoring tasks. For example, in pumps and motors, it can detect unbalance or misalignment before they cause costly downtime. In fans and compressors, its wide frequency response captures both low-speed and high-speed vibration signatures.

Moreover, because the transducer operates from -40°C to +85°C, it can be deployed in outdoor or unheated environments. Its 316L stainless steel construction resists corrosion, making it a reliable choice for chemical plants or offshore platforms. The transducer's any-orientation mounting simplifies installation in tight spaces.

Installation and Setup

Proper installation is critical for accurate readings. The 190501-00-00-00 comes with a no stud mounting option, so you must provide a suitable mounting surface. Ensure the mounting surface is clean and flat, with a diameter of at least 33 mm (1.3 in).

When mounting, apply the specified torque of 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf) to avoid damaging the transducer or compromising its resonant frequency. The transducer uses a MIL-C-5015 connection interface; connect Pin A and Pin B as indicated in the datasheet. For best results, keep cable length within 305 metres (1,000 ft.) to avoid signal degradation.

Maintenance and Reliability

Routine maintenance of the 190501-00-00-00 is straightforward. Periodically inspect the mounting integrity and connector condition. Since the internal electronics are isolated from the case, grounding is not required, but ensure the cable shield is properly terminated.

The transducer can withstand 5000 g pk shock, making it robust against occasional impacts. Its 100% condensing humidity limit means it can operate in wet environments without submersion. Regular checks of the output bias voltage (10.1 Vdc ± 1.0 Vdc) can help verify transducer health.

Compatibility and Integration

The 190501-00-00-00 is a passive velocity transducer that outputs a voltage proportional to vibration velocity. It can be connected to most vibration monitoring systems that accept standard velocity transducer inputs. The MIL-C-5015 connector is widely used in industrial settings, simplifying integration with existing cabling.

For systems requiring intrinsic safety, note that this specific model (option 00) has no agency approvals. If you need intrinsically safe operation, consider other agency approval options (01 through 04) that provide Ex ia IIC T4 ratings. Always verify compatibility with your monitoring system's input impedance and power requirements.

Troubleshooting and Common Issues

If you encounter erratic readings, first check the cable and connector for damage. A loose connection can cause intermittent signals. Also verify that the mounting torque is within spec; over-tightening can shift the resonant frequency.

If the output bias voltage deviates from 10.1 Vdc ± 1.0 Vdc, the transducer may be faulty. In such cases, contact Petro Auto Tech for replacement options. Remember that the transducer is designed for axial velocity measurement; ensure it is oriented correctly (Pin A positive when velocity is from base to top).

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: What is the maximum cable length for this transducer?

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

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

A: This specific model (option 00) has no agency approvals. For intrinsically safe applications, select a version with agency approval options 01 through 04.

Q: What is the operating temperature range?

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

Q: How should I mount the transducer?

A: Mount it on a flat surface of at least 33 mm diameter, using a torque of 4.5 N-m ± 0.6 N-m. Any orientation is acceptable.

Product Support and Availability

The Bently Nevada 190501-00-00-00 is available through Petro Auto Tech, your trusted industrial automation parts supplier. We ensure genuine parts and reliable delivery. For lifecycle status and availability, please contact our team before ordering.

In summary, the 190501-00-00-00 offers precise vibration velocity measurement, robust construction, and easy integration. It is a solid choice for predictive maintenance programs aiming to reduce downtime and extend machinery life.