190501-00-00-04 | Bently Nevada 3.94 mV/mm/s Velocity Transducer

Introduction to the Bently Nevada 190501-00-00-04

When machinery vibration threatens uptime, the 190501-00-00-04 from Bently Nevada provides the reliable data you need. This Velomitor CT velocity transducer is engineered for continuous monitoring in demanding industrial environments. With a sensitivity of 3.94 mV/mm/s (100 mV/in/s) ±5%, it delivers accurate velocity measurements for rotating equipment protection.

This model features a MIL-C-5015 connection interface and no mounting stud, simplifying installation. Its agency approval option 04 includes CSA/NRTL/C (Class I, Division 1) and ATEX/IECEx/CSA (Class I, Zone 0/1) certifications, making it suitable for hazardous locations.

Key Features and Technical Specifications

The 190501-00-00-04 offers a robust set of specifications designed for precision and durability:

• 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.

These specs ensure consistent performance, even in harsh conditions. The transducer operates from -40°C to +85°C (-40°F to +185°F) and can be stored from -40°C to +100°C (-40°F to +212°F). It withstands shock up to 5000 g pk and operates in 100% condensing humidity (non-submerged).

Applications and Use Cases

The 190501-00-00-04 is ideal for vibration monitoring on pumps, fans, compressors, and other rotating machinery. Its hazardous-area approvals make it a top choice for oil and gas, chemical, and pharmaceutical plants. For example, in a refinery, this transducer can continuously monitor a critical pump's vibration, helping to detect bearing wear before catastrophic failure. This proactive approach reduces downtime and maintenance costs, aligning with a cost-benefit strategy.

Furthermore, its wide frequency response captures both low-speed and high-speed machinery vibrations, providing comprehensive data for condition monitoring systems.

Installation and Setup

Proper installation is crucial for accurate readings. The 190501-00-00-04 can be mounted in any orientation, offering flexibility. The mounting surface is 33 mm diameter (1.3 in), and the height is 82 mm (3.2 in). Use the specified mounting torque of 4.5 N-m ± 0.6 N-m (40 in–lbf ± 5 in-lbf) to secure the transducer. Ensure the mounting surface is clean and flat to avoid base strain errors.

For wiring, connect Pin A and Pin B as per the output bias voltage specification. The MIL-C-5015 connector simplifies cable attachment. Follow the installation drawing 167536 for hazardous-area installations to maintain intrinsic safety.

Maintenance and Reliability

Routine inspection of the transducer and its cable is recommended to ensure long-term reliability. Check for physical damage, loose connections, and signs of corrosion, especially in harsh environments. The 316L stainless steel case provides excellent corrosion resistance, but periodic checks are still prudent.

Because the 190501-00-00-04 has no moving parts, it requires minimal maintenance. Its robust design, including a shock limit of 5000 g, ensures it can withstand industrial rigors. By investing in this reliable transducer, you reduce the risk of unexpected failures and extend the life of your monitoring system.

Compatibility and Integration

This transducer is designed to work with Bently Nevada monitoring systems and other data acquisition equipment that accepts velocity transducer inputs. The output bias voltage of 10.1 Vdc ± 1.0 Vdc is standard for many monitoring modules. The maximum cable length of 305 meters allows flexible placement of the monitoring electronics away from the machine.

For integration, ensure your system supports the sensitivity of 3.94 mV/mm/s. The transducer's grounding isolation helps prevent ground loops, enhancing signal integrity.

Common Questions about the 190501-00-00-04

Q: What is the sensitivity of the 190501-00-00-04?

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

Q: What are the hazardous area approvals for this model?

A: It has CSA/NRTL/C (Class I, Division 1) and ATEX/IECEx/CSA (Class I, Zone 0/1) approvals.

Q: Can the transducer be mounted in any orientation?

A: Yes, the mounting angle is any orientation.

Q: What is the maximum cable length?

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

Q: What is the operating temperature range?

A: -40°C to +85°C (-40°F to +185°F).

Product Support and Availability

The 190501-00-00-04 is available through Petro Auto Tech, your trusted industrial automation parts supplier. We ensure genuine Bently Nevada products and reliable delivery. Contact Petro Auto Tech for current availability and lifecycle status before ordering.