190501-04-00-CN | Bently Nevada Velomitor CT Velocity Transducer

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

When rotating machinery vibration threatens uptime, the 190501-04-00-CN from Bently Nevada provides the precise measurement you need. This Velomitor CT velocity transducer is engineered for continuous monitoring in demanding industrial environments. With its rugged design and consistent performance, it helps maintenance teams detect problems early and avoid costly failures.

The 190501-04-00-CN is part of the trusted Bently Nevada family of vibration sensors. It delivers accurate velocity readings across a wide frequency range, making it suitable for many rotating assets. Whether you are monitoring pumps, fans, or compressors, this transducer offers the reliability you expect from a leading brand.

Key Features and Technical Specifications

The 190501-04-00-CN is built to perform under tough conditions. Its specifications highlight its capability and precision:

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

These specs show the transducer’s ability to deliver accurate data even in harsh settings. The wide frequency response captures both low and high frequency vibrations, which is essential for comprehensive machine health monitoring.

Reliability and Maintenance Benefits

From a maintenance engineer’s perspective, the 190501-04-00-CN offers clear advantages. Its 316L stainless steel case resists corrosion, reducing the need for frequent replacements. The internal electronics are isolated from the case, which helps prevent ground loops and signal interference. This design simplifies installation and improves measurement integrity.

Additionally, the transducer’s broad operating temperature range (-40°C to +85°C) means it can be used in extreme environments without performance loss. The shock limit of 5000 g pk ensures it survives accidental impacts, further enhancing its durability. For maintenance teams, this translates to fewer sensor failures and lower lifecycle costs.

Applications and Use Cases

The 190501-04-00-CN is ideal for vibration monitoring on rotating machinery such as turbines, compressors, and electric motors. Its high sensitivity and wide frequency response make it suitable for both slow-speed and high-speed equipment. In addition, the transducer’s ability to operate in condensing humidity (100% condensing, non-submerged) allows it to be used in wet or humid environments without issue.

For example, in a paper mill where rollers operate in a steamy atmosphere, this transducer can reliably monitor bearing health. Its robust construction and environmental resilience ensure continuous operation, helping to prevent unexpected downtime.

Installation and Setup

Proper installation is key to getting accurate readings. The 190501-04-00-CN comes with a stud M6x1 mounting option and a 3/8-in 24 adapter, allowing flexible mounting. 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 for optimal coupling.

The transducer uses a MIL-C-5015 connection interface, which provides a secure and reliable electrical connection. When routing the cable, avoid sharp bends and potential pinch points. The maximum cable length of 305 metres (1,000 ft.) allows remote mounting of monitoring equipment without signal degradation.

Compatibility and Integration

The 190501-04-00-CN is designed to work with Bently Nevada monitoring systems, but it can also integrate with other data acquisition systems that accept velocity transducer inputs. The output bias voltage of 10.1 Vdc and dynamic output impedance of less than 400 Ω ensure compatibility with most industrial input modules.

For new installations, verify that your monitoring system supports the transducer’s sensitivity and frequency range. If you are upgrading an existing system, the 190501-04-00-CN can often replace older velocity transducers without major changes, thanks to its standard connection interface.

Maintenance and Routine Care

To ensure long-term reliability, inspect the transducer periodically. Check the mounting integrity and torque to prevent loosening due to vibration. Examine the cable for wear or damage, especially near connection points. Keep the connector clean and dry to avoid moisture ingress.

Because the transducer has no moving parts, it requires minimal maintenance. However, environmental factors such as extreme temperatures or corrosive atmospheres can affect performance. Regular visual inspections and functional checks are recommended to catch issues early.

Common Questions About the 190501-04-00-CN

What is the sensitivity of the 190501-04-00-CN?

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

What is the operating temperature range?

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

Can the transducer be used in hazardous areas?

Yes, it has intrinsic safety approvals (Ex ia IIC T4 and AEx ia IIC T4) for use in Class I, Div 1, Groups A, B, C, D; Class II, Groups E, F, G; and Class III.

What is the maximum cable length?

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

What mounting hardware is included?

The mounting hardware option is a stud M6x1 with a 3/8-in 24 adapter.

Product Support and Availability

The 190501-04-00-CN is available through Petro Auto Tech. As a trusted industrial automation parts supplier, Petro Auto Tech ensures genuine Bently Nevada products and prompt delivery. Contact Petro Auto Tech for current availability and lead times.